Title of Invention	A CONTROL UNIT FOR A VEHICLE
Abstract	A control device for vehicle having a plurality of control boards arranged in layered structure, a plurality of control elements mounted on each control board, and a case for enclosing mounted control boards to provide a unit structure, wherein wire harnesses 81d and 82d as wires extending from the control boards (printed boards 71a and 72a) are allocated to a plurality of couplers (first and second couplers 81 and 82). The degree of freedom of layout of the control device can be increased to thereby improve the design of the vehicle. Further, the degree of freedom of design of the control device can also be increased to thereby reduce the cost of the control device.

Title of Invention

A CONTROL UNIT FOR A VEHICLE

Abstract

A control device for vehicle having a plurality of control boards arranged in layered structure, a plurality of control elements mounted on each control board, and a case for enclosing mounted control boards to provide a unit structure, wherein wire harnesses 81d and 82d as wires extending from the control boards (printed boards 71a and 72a) are allocated to a plurality of couplers (first and second couplers 81 and 82). The degree of freedom of layout of the control device can be increased to thereby improve the design of the vehicle. Further, the degree of freedom of design of the control device can also be increased to thereby reduce the cost of the control device.

Full Text	THE PATENTS ACT 1970 [39 OF 1970] & THE PATENTS RULES, 2003 COMPLETE SPECIFICATION [See Section 10; rule 13] A CONTROL UNIT FOR A VEHICLE HONDA GIKEN KOGYO KABUSHIKI KAISHA, a corporation of Japan, 1 1, Minamiaoyama 2-chome, Minato-ku, Tokyo, Japan, The following specification particularly describes the invention and the manner in which it is to be performed: The present invention relates to a control unit for a vehicle. ..[-Detailed Description -of-the;-lnvention]. [0001] [Technical Field to Which the invention Pertains] The present invention relates to a control device for a vehicle having a plurality of control boards arranged in a layered structure,, a plurality of control elements mounted on each control board, and a" case for enclosing.the control boards tb provide a unit structure. [0002} " [Prior Art] A control device for a vehicle is known from Japanese Utility Model Publication No. Hei 3-23828 entitled "Full-Wave Rectification Device" for Vehicle", for example. As shown in FIGS. 1".and 15. in this publication (reference numerals used herein in the description of the 2 prior art are the same as those used in this publication), a metallic member 38 (which will be hereinafter referred to as "first board") is mounted through an insulating layer 34 on a metallic plate 33. A circuit board 54 {which will be hereinafter referred to as "second board") is placed on the metallic member 38 in a layered structure, and rectifier elements 39 and 40 and a thyristor 41 are mounted on the metallic member 38. Further, AC input terminals 58, 59, and 60 (which will be hereinafter referred to as "wires") and DC input terminals 61 and 62 (which will be hereinafter referred to as "wires") are mounted on one end of the metallic member 38. [0003] [Problems to be Solved by the Invention] In the above-mentioned full-wave rectification device, the second board is laid over the first board in a layered structure to increase the area of a control board, so that a large number of control elements including the rectifier elements 39 and 40 and the thyristor 41 can be mounted on the control board. However, the wires increase in number with an increase in number of the control elements including the rectifier elements 39 and 40 and the thyristor 41. As a 3 result, the spacing between the wires decreases with an increase in number of the wires, causing a difficulty of production of the device and a requirement for much consideration to the quality of the device. Further, since the wires are collectively arranged at one position, a coupler connected to the wires becomes large in size, so that it is difficult to fit the device in a narrow space and the degree of freedom of design of the device is limited. [0004] It is accordingly an object of the present invention to provide a technique for allowing a control device on which many control elements are mounted to be easily fitted in a narrow space. [0005] [Means for Solving the Problems] According to claim 1, there is provided a control device for a vehicle having a plurality of control boards arranged in a layered structure, a plurality of control elements mounted on each of the control boards, and a case for enclosing the control boards to provide a unit structure, wherein wires extending from the control boards are allocated to a plurality of couplers. [0006] 4 The layered structure of the plural control boards each mounting the control elements is preferable in increasing the area of a control board to thereby increase the number of control elements that can be mounted on the control board. Further, the unit structure." obtained by enclosing the control boards each mounting the control elements in the case is preferable in facilitating the mounting of the control device on the vehicle. In this respect, the control device of the present invention has the layered structure of the control boards and the unit structure of the case enclosing the control boards. Furthermore, the wires extending from the control boards are allocated to the plural couplers. By allocating the wires extending from the control boards to the plural couplers, the degree of freedom of layout in mounting the control device on the vehicle can be increased, and the degree of freedom of design of the control device can also be increased. As a result, the design of the vehicle can be improved by. the increase in the degree of freedom of layout. Further, the cost of the control device can be reduced by the increase in the degree of freedom of design. 5 [0007] According to claim 2, the couplers are mounted on different wall surfaces of the case. With the arrangement that the couplers are mounted on different wall surfaces of the case, wire harnesses extending from the couplers can be located on the sides of the different wall surfaces, so that the degree of freedom of layout can be further increased. [0008] According to claim 3, the couplers are arranged in a lateral direction of the vehicle in mounting the case on the vehicle. With the arrangement that the couplers are arranged in the lateral direction of the vehicle, the workability in maintenance of the control device can be improved. [0009] According to claim 4, semiconductor elements having high heating values as some of the control elements are collectively mounted on one of the plural control boards. With the arrangement that the semiconductor elements having high heating values as some of the control elements are collectively mounted on one of the plural control boards, thermal effects on the other control elements can be minimized. 6 [0010] According to claim 5, the case is formed of metal, and the semiconductor elements having high heating values are mounted through the control board on the metallic case. With the arrangement that the case is formed of metal and the semiconductor elements having high heating values are mounted through the control board on the metallic case, heat radiation from the semiconductor elements having high heating values can be accelerated. [0011] According to claim 6, the metallic case has a radiating surface formed with a plurality of radiating fins. With the arrangement that the metallic case has a radiating surface formed with a plurality of radiating fins, the heat radiation from the control device can be further accelerated. [0012] According to claim 7, the couplers are provided so as to respectively correspond to the plural control boards. With the arrangement that the couplers are provide-so as to respectively correspond to the plural control 7 boards, the mount densities of the control boards can be uniformed. [0013] [Mode for Carrying out the Invention] A preferred embodiment of the present invention will now be described with reference to the attached drawings. In the following description, the terms of "front", "rear"";" "left", "right", "upper", and "lower" are meant with respect to an operator riding on the _ vehicle, and Fr, Rr, L, and R denote the front side, rear side, left side, and right side, respectively. Further, . each drawing is to be viewed in the same orientation as that of reference numerals shown thereon. [Brief Description of the Drawings] [FIG. 1] FIG. 1 is a side view of a motorcycle on which the 8 control device for the vehicle according to the present invention is mounted. [FIG. 2] FIG. 2 is a perspective view of a rear fender with which the control device for the vehicle according to the present invention is assembled. [FIG. 3] FIG. 3 is a cross section taken along the line 3-3 in FIG. 2. [FIG. 4] FIG. 4 is a view taken in the direction of the arrow 4 in FIG. 2. [FIG. 5] FIG. 5 is a cross section taken along the line 5-5 in FIG. 4. [FIG. 6] FIGS. 6(a) and 6(b) are sectional views for illustrating the operation of the control device for the vehicle according to the present invention. [FIG. 7] FIG. 7 is a plan view showing a mounted condition of the control device for the vehicle according to the present invention. [FIG. 8] FIG. "8 is a circuit diagram of the control device for the vehicle according to the present invention. {FIG.- 9} FIG, 9 is a plan view showing a mounted condition of a fuel pump on the motorcycle. [FIG. 10] FIG. 10 is a perspective view showing the mounted condition of the fuel pump. [FIG. 11] FIG. li is a perspective view of an engine of the motorcycle as viewed from the left side thereof. [FIG. 12] FIG. 12 is a plan view of the engine and a portion in the vicinity thereof. [FIG. 13] FIG. 13 is a perspective view of the engine as viewed from the right side thereof. [FIG. 14] FIG. 14 is a plan view of a rear portion of the motorcycle. [0014] FIG. 1 is a side view of a motorcycle 10 on which the control device for the vehicle according to the present invention is mounted. The motorcycle 10 as the vehicle; is a scooter type motorcycle composed mainly of a body frame 11 having a head pipe 11a, a front fork 12 mounted on the head pipe . 11a of the body frame 11, a front wheel 13 mounted on the front fork 12 at its lower ends, a steering handle 14 connected to the front fork 12 at its upper end, a unit swing engine 15 vertically swingably mounted on the body i frame 11 at its rear portion, a rear wheel 16 mounted on the unit swing engine 15, a rear cushion unit 17 suspending a rear end portion of the unit swing engine 15, a storage box (luggage box) 18 mounted on the body frame 11 at its rear upper portion, and a seat 19 pivotably mounted so as to allow the storage box 18 to be opened and closed at its upper side. [0015] The body frame 11 is composed of a die-cast front frame llFr, a die-cast rear frame 11Rr, and a connecting portion 11X connecting the front frame llFr and the rear frame 11Rr. The front frame llFr is integrally formed with the head pipe 11a. The unit swing engine 15 is composed of an engine 21 and a belt-converter continuously variable transmission 22 with a centrifugal clutch. The engine 21 is a water-cooled four-cycle engine whose cylinder portion is exposed between the storage box 18 and a fuel tank 35 and inclined frontward to a substantially horizontal position. As will be hereinafter described, the cylinder portion of the engine 21 includes a cylinder block 307, a cylinder head 308, and a head cover 311. [0016] The body frame 11 is covered with a body cover 24. The body cover 24 is composed of a front cover 25 covering a front portion of the head pipe 11a, a leg shield 26 covering a rear portion of the head pipe 11a so as to face the front cover 25 for covering the front side of the legs of the operator, a step floor (low-floor type foot rest) 27 for providing a rest for the feet of the operator, a pair of right and left floor side covers 28 projecting downward from the opposite side edges of the step floor 21, an under cover 29 covering the lower side of the floor side covers 28 so as to connect the lower edges thereof, a seat under cover 31 covering a front portion of the storage box 18 under the seat 19, a rear cover 32 covering a rear portion of the storage box 18 under the seat 19 and the upper side of the rear wheel 16, and a pair of right and left side covers 33 connected to the opposite side edges of the seat under cover 31 and the rear cover 32. [0017] A main switch 34 is provided inside of the leg shield 26. A fuel tank 35 and a fuel pump 36 are provided under the step floor 27. A radiator reservoir tank 37, a battery 38, and a control unit 39 are provided on the body frame 11 at its rear upper end portion. A meter unit 40 is provided near the steering handle 14 to display a vehicle speed during running of the vehicle and display other kinds of information such as time in a rest condition of the vehicle. [0018] The motorcycle 10 further includes an air cleaner 41 provided on the left side of the vehicle body, a carburetor 42, an engine cooling radiator 43 provided at the right end of a crankshaft 21a of the engine 21, an exhaust pipe 44 extending from the engine 21, an exhaust muffler 45 provided on the right side of the vehicle body, a front fender 46 fixed to the front fork 12, a rear fender 47, a headlight 48, a mirror 92, a pair of right and left front winkers 93R and 93L, a front handle cover 94Fr, a rear handle cover 94Rr, a horn 95 provided inside of the front cover 25, an engine hanger 96, an engine starting kick pedal 97, a main stand 98, a carrier 99, a cylinder block 307, a cylinder head 308, a head cover 311, an intake pipe 312, an intake manifold 313, and a helmet He., Reference numerals 35a and 91 denote a fuel filler cap with a lock and a fuel filler lid, respectively. When the fuel filler lid 91 is opened up to the front side in supplying a fuel to the fuel" tank 35, the fuel filler cap 35a is exposed. [0019] The motorcycle 10 further includes a pair of right and left handle grips 51R and 51L, a pair of right and left brake levers 52R and 52L, a pair of brake switches 53R and 53L to be operated by the brake levers 52R and 52L, respectively, a water temperature sensor 54 for detecting the temperature of a cooling water for the engine 21, a speed sensor 55 provided on the power transmitting mechanism 2 2 at a position near the rear wheel 16 for detecting a vehicle speed, a fuel unit 56 composed mainly of a resistor for detecting a remaining fuel amount, a stop lamp 57, a lighting circuit unit 58 for turning on the stop lamp 57, and a pair of right and left rear winkers 59R and 59L. The speed sensor 55 is preferably provided by a Hall sensor using a Hall element. [0020] FIG. 2 is a perspective view of the rear fender 47 with which the control device for the vehicle according to the present invention is assembled. The rear wheel 47 is composed of a body portion 61, a tray portion 62 formed integrally with the body portion 61 at its front end, and a rear portion 63 mounted on the body portion 61 at its rear end. [0021] As shown in FIG. 2, a control device. 70 is assembled with the tray portion 62 of the rear fender 47. Although not shown in FIG. 2, the radiator reservoir tank 37 and the battery 38 shown in FIG. 1 are also assembled with the tray portion 62 of the rear fender 47. Thus, the rear fender 47 with which the control device 70, the radiator reservoir tank 37, and the battery 38 are preliminarily assembled is mounted on the body frame 11 (see FIG. 1). Since the assembly of the rear fender 47 with the control device 70, the radiator reservoir tank 37, and the battery 38 is mounted on the body frame 11, the assemblability of the vehicle can be improved and the serviceability can also be improved. [0022] FIG. 3 is a cross section taken along the line 3-3 in FIG. 2. As shown in FIG. 3, the control device 70 includes a first unit board 71 having a plurality of semiconductor elements 76 as control elements having high heating values; a first coupler 81 connected to the first unit board 71; a first filler 73 for fixing the first unit board 71; a second unit board 72 having a plurality of semiconductor elements 77 {only one of them being shown} as control elements having low heating values, electrolytic capacitors 7 8 having relatively large heights, and passive elements 79 such as resistors; a second coupler 82 connected to the second unit board 72, a second filler 74 for fixing the second unit board 72, and a case 75 for enclosing the first and second unit boards 71 and 72 and the first and second fillers 73 and 74 and for mounting the first and second couplers 81 and 82. The control device 70 functions to control ignition to the engine 21 (see FIG. 1), control charge/discharge to the battery 38 (see FIG. 1), and control the operation of a starter motor (not shown). Reference numeral 88 denotes one of a plurality of pin terminals for connecting the first unit board 71 to the second unit board 72. [0023] The first unit board 71 is configured by mounting the semiconductor elements 76 having high heating values on a printed board 71a as a control board. The back surface of the printed board 71a is mounted directly on the case 75, so as to accelerate heat radiation from the semiconductor elements 76. Accordingly, the printed board 71a is preferably formed from a board having good thermal conductivity, such as a board using glass fabric based epoxy resin or fluororesin. The second unit board 72 is configured by mounting the semiconductor elements 77 having low heating values, the electrolytic capacitors 78, and the passive elements 79 on a printed board 72a as another control board. The printed board 72a may be formed from a general phenol-resin printed board. [0024] The first filler 73 is preferably formed of a resin material having good thermal conductivity, such as silicone resin. The second filler" 74 may be formed from a general filler. The case 75 is a metallic case formed of light metal. The case 75 is formed with a relatively deep recess 83, a relatively shallow recess 84, a partition wall 85 for separating the recesses 83 and 84 from each other, a plurality of radiating fins 86a, 86b, and 86c for accelerating heat radiation (the radiating fins 86a and 86c being shown in FIG. 2), and a plurality of projections 87 to be mounted on an external member. Each projection 87 is formed with a hole 87a for insertion of a screw. [0025] Thus, the control device 70 is characterized in that the semiconductor elements 76 having high heating values as control elements are collectively mounted on 18 one of the plural control boards (the printed boards 71a and 72a). By collectively mounting the semiconductor elements 76 having high heating values as control elements on one of the plural printed boards 71a and 72a, thermal ef-fects on the other control elements (the semiconductor elements 77 having low heating values) can be minimized. [0026] The control device 70 is further characterized in that the case 75 is a metallic case and that the semiconductor elements 76 having high heating values are mounted through the control board (the printed board 71a) on this metallic case 75. Since the case 75 is a metallic case and the semiconductor elements 76 having high heating values are mounted through the printed board 71a on this metallic case 75, heat radiation from the semiconductor elements 76 having high heating values can be accelerated. [0027] FIG. 4 is a view taken in the direction of the arrow 4 in FIG. 2, showing a plan view of the control device 70. The first coupler 81 includes a housing 81a, a plurality of L-shaped terminals 81b and 81c extending from the housing 81a, and a wire harness 81d connected to the terminals 81b and 81c. Similarly, the second coupler 82 includes a housing 82a, a plurality of L-shaped terminals 82b and 82c extending from the housing 82a, and a wire harness 82d connected to the terminals 82b and 82c. The terminals 81b and 81c of the first coupler 81 are connected to the printed board 71a, and the terminals 82b and 82c of the second coupler 82 are connected to the printed board 72a. [0028] Thus, the control device 70 is a control unit having a plurality of control boards each mounting control elements in a layered structure and a case enclosing these control boards. The control device 7 0 is further characterized in that wires (the wire harnesses 81d and 82d) extending from the control boards (the printed boards 71a and 72a) are allocated to a plurality of couplers (the first and second couplers 81 and 82). [0029] The layered structure of the printed boards 71a and 72a mounting the control elements (the semiconductor elements 76 having high heating values and the semiconductor elements 77 having low heating values as shown in FIG. 3) is preferable in increasing the area of a control board to thereby increase the number of control elements that can be mounted on the control board. Further, the unit structure obtained by enclosing the printed boards 71a and 72a mounting the control elements in the case 75 is preferable in facilitating the mounting of the control device 70 on the vehicle. [0030] In this respect, the control device 70 has the layered structure of the printed boards 71a and 72a and the unit structure of the case 7 5 enclosing the printed boards 71a and 72a. Furthermore, the wires extending from the printed boards 71a and 72a are allocated to the first and second couplers 81 and 8 2 in the control device 7 0. With this arrangement, the degree of freedom of layout in mounting the control device 70 on the vehicle can be increased, and the degree of freedom of design of the control device 70 can also be increased. By increasing the degree of freedom of layout, the design of the vehicle can be improved. By increasing the degree of freedom of design, the cost of the control device 70 can be reduced. [0031] FIG. 5 is a cross section taken along the line 5-5 in FIG. 4. As shown in FIG. 5, the first coupler 81 is connected to the printed board 71a, and the second coupler 82 is connected to the printed board 72a. That is, the first and second couplers 81 and 82 are provided so as to respectively correspond to the printed boards 71a and 72a. Since the first and second couplers 81 and 82 are provided so as to respectively correspond to the printed boards 71a and^72a (control boards), the mount densities of the control boards can be uniformed. [0032] The operation of the control device 70 will now be described. FIGS. 6(a) and 6(b) illustrate the operation of the control device 70. As shown in FIG. 6(a), the semiconductor elements 7 6 having high heating values are mounted on the printed board 71a, and the back surface of the printed board 71a is fixed directly to the case 75. Accordingly, heat generated from the semiconductor elements 7 6 can be radiated as shown by the arrows ®. Further, the case 75 has the radiating fins 86a, 86b, and 86c (the fins 86a and 86c being shown in FIG. 2), so that the heat radiation from the semiconductor elements 76 can be accelerated. [0033] The case 75 is a metallic case, and the semiconductor elements 76 having high heating values are mounted through the control board (the.printed board 71a) on the metallic case 75. Accordingly, the heat radiation from the semiconductor elements 76 can be further accelerated. As shown in FIG. 6(b), the case 75 has the relatively deep recess 83. Accordingly, the electrolytic capacitors 78 having relatively large heights can be easily accommodated in the recess 83. [0034] FIG. 7 is a plan view showing a mounted condition of the control device 70. As shown in FIG. 7, the first coupler 81 is mounted on a wall surface 75a of the case 75, and the second coupler 82 is mounted on another wall surface 75b of the case 75. Accordingly, the wire harnesses 81d and 82d respectively extending from the first and second couplers 81 and 82 can be easily disposed in a given space. [0035] Thus, the control device 70 is further characterized in that the first and second couplers 81 and 82 are mounted on the different wall surfaces 75a and 7 5b of the case 75. With this arrangement, the wire harnesses 81d and 82d respectively extending from the first and second couplers 81 and 82 can also be located on the sides of the different wall surfaces 75a and 75b, respectively. Accordingly, the degree of freedom of layout of the control device 70 can be further increased. [0036] The control device 7 0 is further characterized in that the first and second couplers 81 and 82 are arranged in the lateral direction of the vehicle in mounting the case 75 on the vehicle. Since the first and second couplers 81 and 82 are arranged in the lateral direction in mounting the case 75 on the body frame 11 {see FIG. 1), the workability in maintenance of the control device 7 0 can be improved. [0037] FIG. 8 is a circuit diagram of a power supply system 24 0 including the control device 7 0. The power supply system 240 includes a battery 38, a battery isolation relay 242 connected through a main fuse 241 to the battery 38, a starter relay 243 connected to the battery isolation relay 242 and the battery 38, an ACG starter 233 connected through a boosting rectifier circuit 244 to the starter relay 243, FET driving means 253 for driving FETs 245 to 250 constituting the boosting rectifier circuit 244, an oscillator 254 and control means 255 for supplying pulses for chopper (which means conversion of a direct current into.an alternating current, next amplification (boosting) in the AC state, and next reconversion of the amplified AC output into a direct current) to the FET driving means 253, a main switch 34 connected through a first diode 256 and a second diode 257 to the battery 38 and the ACG starter 233, respectively, a starter switch 212 connected to the main switcn 54 and" the control means 255, FETs 262 ancf 263 respectively connected to a fue^ pump 36 and a general load 261 to which power is supplied from the battery isolation relay 242 through a sub-fuse 258, and an FET 264 connected to the starter relay 243. [0038] The control device 70 has a circuit composed mainly of the oscillator 254, the control means 255, the FETs 245 to 250 as the semiconductor elements 76 (see FIG. 3), the FET driving means 253, the FETs 262 to 264 as the semiconductor elements 77 (see FIG. 3)t and a CDI (Capacitive Discharge Ignition) device 217 to be hereinafter described. [0039] The starter switch 212 is composed of a first fixed contact 2 66 connected to the main switch 34, a second fixed contact 2 67 connected to the control means 2 55, and a movable contact 268 adapted to come into contact with or separation from the first and second fixed contacts 266 and 267. [0040] The main switch 34 is composed of a fixed contact 271 connected to the control means 255, a movable contact 272 adapted to come into contact with or separation from the fixed contact 271 and connected to the battery 38 and the ACG starter 233, and an antitheft switch section 273 connected to the movable contact 272. [00413 The antitheft switch section 273 is connected to an antitheft device (not shown) . When the movable contact 272 of the main switch 34 is in contact with the fixed contact 271 (i.e., on state), the antitheft switch section 273 is off, whereas when the movable contact 272 is in separation from the fixed contact 271 (i.e., off state), the antitheft switch section 273 is on. [0042] The ACG starter 233 functions both as a starter motor and as a three-phase AC generator. That is, when the ACG starter 233 functions as a starter motor, a current is supplied from the battery 38 to three starter coils 233a to thereby start rotation of the crankshaft 21a {see FIG. 1), whereas when the ACG starter 233 functions as an ACG (three-phase Ac generator), an output is taken from the starter coils 233a. in the case that the ACG starter 233 is used as a starter motor, it is operated at a given battery voltage v3 or higher. [0043] The battery isolation relay 242 is composed of a switch section 276 and" a coil 261 for operating the switch section 278. The switch section 278 is composed of a fixed contact 276 connected to the main fuse 241 and a movable contact 277 adapted to come into contact with or separation from the fixed contact 276 and connected to the starter relay 243. When no current is supplied to the coil 281, the switch section 278 is off. [0044] The starter relay 243 is composed of a switch section 285 and a coil 286 for operating the switch section 285. The switch section 285 is composed of a first fixed contact 282 connected to the battery isolation relay 242, a second fixed contact 283 connected to the battery 38, and a movable cohtact 284 adapted to . come into contact with or separation from one of the first and second fixed contacts 282 and 283 and connected to the boosting rectifier circuit 244. The coil 286 operates to select the contact of the movable contact 284 and the first fixed contact 282 or the contact of the movable contact 284 and the second fixed contact 283. When no current is supplied to the coil 286, the movable contact 2 84 comes into contact with the first fixed contact 282, whereas when a current is supplied to the coil 286, the movable contact 284 comes into contact with the second fixed contact 283. [0045] The,boosting rectifier circuit 244 (power section) is composed of the FETs 245 to 250, diodes 291 to 296 as parasitic diodes each connected between the drain and the source of each of the FETs 245 to 250, respectively, and a capacitor 201 connected between output terminal portions 297 and 298. The diodes 291 to 296 constitute a three-phase full-wave rectifier circuit, and the FETs 245 to 250 constitute a switch circuit for chopper. When the ACG starter 233 operates as a starter, the switch circuit functions as a driver, whereas when the ACG starter 233 operates as an ACG, the switch circuit functions as a regulator. [0046] Each of the FETs 245 to 250 and the FETs 262 to 264 is a P-channel MOS FET {Field Effect Transistor), wherein a drain current flowing between the drain and the source is controlled by a gate voltage applied between the gate and the source. [0047] The FET driving means 253 receives pulses from the oscillator 254 or the control means 255 and applies drive signals having rectangular waveforms to the gates of the FETs- 245 to 250 in synchronism with the frequency of the pulses. [0048] The oscillator 254 is started when the voltage supplied from the battery 38 or the ACG starter 233 becomes VI, and generates oscillation pulses having a given amplitude, a given pulse width, and a given pulse spacing. That is, the oscillator 254 generates the oscillation pulses at the starting voltage VI or higher. [0049] The control means 255 controls the switching operation of the FETs 262 to 264 as switches, and includes a central processing unit (CPU) 255a (which will be hereinafter referred to as "CPU 255a") . The CPU 255a includes a clock generator (not shown) for generating periodic pulses at given time intervals. [0050] The CPU 255a is started when the voltage supplied from the battery 38 or the ACG starter 233 becomes V2, and generates pulses (which will be hereinafter referred to as "CPU pulses") having a given amplitude, a given pulse width, and a given pulse spacing according to the pulses generated from the clock generator. That is, the CPU 255a generates the CPU pulses at the starting voltage V2 or higher. [0051] The CPU 255a generates the CPU pulses for a given time period after starting. However, when an ignition pulser signal from an ignition pulser signal generating device (not shown) is detected during this given time period, the CPU 255a continues to generate the CPU pulses also after this given time period until the engine speed becomes a given value or more or the battery voltage becomes a given value or more. When the engine speed lowers to a constant value or less or when the engine rotation is stopped, the generation of the CPU pulses is ended. [0052] The control means 255 controls the gate voltage at each of the FETs 262 to 264 to thereby perform on/off control between the drain and the source of each of the FETs 262 to 264. The control means 255 further generates a control signal for operating the CDI device 217 in the control device 70. [0053] The CDI device 217 is designed so that electricity is generated from an igniting coil (not shown) provided in the ACG starter 233, that this electricity is rectified by a diode and once accumulated by an igniting capacitor, and that an electrical signal is applied to the gate of a thyristor connected to the igniting capacitor in the off state of the thyristor, thereby turning on the thyristor to discharge the electric power accumulated in the igniting capacitor. The discharged current is passed through a primary winding 207 of an ignition coil 206 to generate a high voltage at a secondary winding 208 and emit a spark at a spark plug 238. [0054] The first diode 256 functions to allow a current to flow in only a direction from the battery 38 toward the main switch 34 and to inhibit a current flow from the ACG starter 233 toward the battery 38. The second diode 257 functions to allow a current to flow in only a direction from the ACG starter 233 toward the main switch 34 and to inhibit a current flow from the battery 38 toward the ACG starter 233. Thus, the first and second diodes 256 and 257 are provided to pass a current having a fixed direction through the control means 255, thereby protecting the control means 255. [0055] The general load 261 is an electrical load except a fuel supply system load including the fuel pump 36 and an ignition system load including the CDI device 217 and the spark plug 238. The general load 261 primarily includes the headlight 48, the stop lamp 57, the meter unit 40, and the horn 95 (see FIG. 1). The diodes 203 to 205 are parasitic diodes in the FETs 262 to 264, respectively. [0056] The boosting rectifier circuit 244, the FET driving means 253, the oscillator 254, and the control means 255 constitute a generation voltage boosting device 210. The FETs 262 to 264 and the control means 255 constitute a power control device 211. 32 [0057] FIG. 9 is a plan view showing a mounted condition of the electromagnetic fuel pump 36. As shown in FIG. 9, the fuel pump 36 is mounted on the upper surface of the under cover 29 by nuts 301. A fuel filter 302 is connected through a hose 321 to the fuel tank 35 {see FIG. 1) , and the fuel pump 36 is connected through a hose 303 to the fuel filter 302. The direction shown by a hollow arrow in FIG. 9 indicates the front side of the vehicle (the same applies in the subsequent drawings). [0058] FIG. 10 is a perspective view showing the mounted condition of the fuel pump 36 as viewed from the front upper side of the engine 21. Reference numeral 3 04 denotes a check valve for allowing a fuel to flow in only a direction from the fuel pump 36 to the carburetor 42 (see FIG. 1). The check valve 304 is connected through a hose 305 to the fuel pump 3 6. The fuel pump 36 is located on the right lower side of a cylinder head 308 to be hereinafter described. A shade 29a is interposed between the engine 21 and a fuel system including the fuel pump 36 to protect the fuel system. More specifically, the shade 29a is interposed between a head cover 311 and the assembly of the fuel pump 36 and the fuel filter 302. Reference numeral 206 denotes an ignition coil. [0059]" FIG. 11 is a perspective view of the engine 21. The engine 21 includes a crankcase 306, a cylinder block 307 mounted on the crankcase 306 at its front portion, a cylinder head 308 mounted on the cylinder block 307 at its front portion, a head cover 311 covering the front end of the cylinder head 3 08, a carburetor 42 located above the crankcase 3 06, an intake pipe 312 extending from the carburetor 42 toward the cylinder head 308, an intake manifold 313 connected with the intake pipe 312 and mounted on the cylinder head 3 08, a connecting tube 314 connected between the carburetor 42 and the air cleaner 41 (see FIG. 1), a plug cap 317 connected through a high-tension cord 316 to the ignition coil 206, a spark plug 238 covered with the plug cap 317, and a radiator 43 mounted on a side surface of the crankcase 306. The engine hanger 96 is composed of a pair of left and right hanger plates 96a and 96b and a pipe 96c connecting the hanger plates 96a and 96b. Reference numeral 319 denotes a breather tube. [0060] FIG. 12 is a plan view of the engine 21 and a portion near the engine 21. As shown in FIG. 12, the carburetor 42 is located above the engine 21, and a throttle cable 325 extending from the steering handle 14 (see FIG. 1) is connected at one end thereof:to the carburetor 42. A seat catch frame 326 for mounting a seat catch {not shown) for retaining the seat 19 {see FIG. 1) is mounted on the rear frame llRr at its rear portion. The radiator reservoir tank 37 and the battery 38 are located below the seat catch frame 326. The maintenance of the reservoir tank 37 and the battery 38 can be made by removing a maintenance lid (not shown) detachably mounted on a rear wall of the storage box 18 (see FIG. 1). Thus, good maintainability of the reservoir tank 37 and the battery 3 8 is ensured. In FIG. 12, reference numeral 328 denotes a band for fixing the battery 38; 341 denotes a positive terminal of the battery 38, the positive terminal 341 being integrated with a fuse box 347; 342 denotes a negative terminal of the battery 38; 343 denotes a conductor connected to the negative terminal 342; and 345 denotes a secondary air induction tube connected to a reed valve 346 (see FIG. 11) mounted on the head cover 311 (see FIG. 11) to supply air from the air cleaner 41 (see FIG. 1) to the intake passage of the engine 21. [0061] FIG. 13 is a perspective view of the engine 21, showing a mounted condition of the radiator 43 on the right side of the engine 21. Reference numeral 348 denotes a radiator cover for covering the body of the radiator 43. The radiator cover 348 serves also as a cooling air guide. Reference numeral 351 denotes a radiator cap. [0062] FIG. 14 is a plan view of a rear portion of the motorcycle 10 (see FIG. 1), showing a condition where the control unit 39 {see FIG. 1) has been removed. As shown in FIG. 14, the reservoir tank 37 is connected through a hose 363 to the radiator 43 (see FIG. 1), and the battery isolation relay 242 is located behind the battery 38. Reference numeral 366 denotes a stand unlock cable for releasing a locked condition of the main stand 98 (see FIG. 1) (i.e., a condition where the main stand 98 is locked to maintain its lowered position); 367 denotes a seat unlock cable for releasing a locked condition of the seat 19 {see FIG. 1) (i.e., a condition where the seat 19 is locked to maintain its closed position); 368 denotes a relay cord connected to the battery isolation relay 242; 36 and 371 denotes a battery cord connected to the battery 38. [0063] While the back surface of the printed board 71a is mounted directly on the case 75 as shown in FIG. 3 to accelerate the heat radiation from the semiconductor elements 76 in this preferred embodiment, the control elements (the semiconductor elements 76) may be mounted directly on the case 75. Further, while the present invention is applied to the motorcycle 10 as the vehicle in this preferred embodiment, the vehicle may be a three-wheeled vehicle or a four-wheeled vehicle. [0064] [Effects of the Invention] The following effects can be exhibited by the above configuration of the present invention. The control device for the vehicle as defined in claim 1 has a plurality of control boards arranged in a layered structure, a plurality of control elements mounted on each control board, and a case for enclosing the control boards to provide a unit structure, wherein wires extending from the control boards are allocated to a plurality of couplers. With this arrangement, the degree of freedom of layout of the control device in,, mounting it on the vehicle can be increased, and the degree of freedom of design of th§ control device can also be increased. As a result, the design of the vehicle can be improved by the increase in the degree of freedom of layout. Further, the cost of the control device can be reduced by the increase in the degree of freedom of design. [0065] According to claim 2, the couplers are mounted on different wall surfaces of the case. With this arrangement, wire harnesses extending from the couplers can be located on the sides of the different wall surfaces, so that the degree of freedom of layout can be further increased. [0066] According to claim 3, the couplers are arranged in the lateral direction of the vehicle in mounting the case on the vehicle. With this arrangement, the workability in maintenance of the control device can be improved. [0067] According to claim 4, semiconductor elements having high heating values as some of the control elements are collectively mounted on one-of the plural control boards. With this arrangement, thermal effects on the other control elements can be minimized.. [0068] According to claim 5, the case is formed of- metal, and the semiconductor elements having high heating values are mounted through the control board on the metallic case.. With this arrangement, heat radiation from the semiconductor elements having high heating values can be accelerated. [0069] According to claim 6, the metallic case has a radiating surface formed with a plurality of radiating fins. With this arrangement, the heat radiation from the control device can be further accelerated. [0070] According to claim 7, the couplers are provided so as to respectively correspond to the plural control boards. With this arrangement, the mount densities of the control boards can be.uniformed. [Description of Reference Numerals] 10 „. vehicle (motorcycle) , 7o ... control device for the vehicle, 71a, 72a ... control boards (printed boards) , 75 ... case, 75a, 75b „. wall surfaces, 76 _. control elements (semiconductor elements having high heating values), 77 ... control elements (semiconductor elements having low Jie_ating values), 81, 82 „ first and second couplers (couplers), 81d, "82d „ wires, (wire harnesses). 39 We Claim: 1. A control unit for a vehicle in which a plurality of control boards on each of which a control element is mounted are stacked to form a layered structure and housed in a case for unitization, wherein lines extending from the respective control boards are distributed to a plurality of respective couplers, which are installed on respective different wall surfaces of the case, and of the control elements semiconductor elements generating much heat are collected in one of the plurality of control boards, and a metallic case is used as the case, which is provided on a radiation surface thereof with a radiation fin extending in a back and forth direction of the vehicle, the metallic case is provided with a shallow recess portion and with a deep recess portion, if the control board on which the semiconductor elements generating much heat are mounted is called a first control board, the first control board is housed in the shallow recess portion and a tall control element is housed in the deep recess portion, and the control board collecting the semiconductor elements heating much heat is disposed on an upper wall surface on the front side of and inside of the metallic case in a state where the control unit is mounted on the vehicle. 2. The vehicle control unit as claimed in claim 1, wherein the couplers are each provided a corresponding one of the plurality of control boards. 3. The vehicle control unit as claimed in claim 1, wherein the tall control elements are collected on one side of one of the control boards, and of the control elements semiconductors generating less heat are collected on the other side of the one of the control boards, and if this control board is called a second control board, the other side of the second control board is hierarchically arranged so as to have a rear surface opposite to the semiconductor elements generating much heat. Dated this 26/11/2001 RITUSHK^NEGI Of Remfry & Kagar Attorney for the applicant(s)

Full Text

THE PATENTS ACT 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See Section 10; rule 13] A CONTROL UNIT FOR A VEHICLE
HONDA GIKEN KOGYO KABUSHIKI KAISHA, a corporation of Japan, 1 1, Minamiaoyama 2-chome, Minato-ku, Tokyo, Japan,
The following specification particularly describes the invention and the manner in which it is to be performed:

The present invention relates to a control unit for a vehicle.
..[-Detailed Description -of-the;-lnvention]. [0001] [Technical Field to Which the invention Pertains]
The present invention relates to a control device for a vehicle having a plurality of control boards arranged in a layered structure,, a plurality of control elements mounted on each control board, and a" case for enclosing.the control boards tb provide a unit structure. [0002} " [Prior Art]
A control device for a vehicle is known from Japanese Utility Model Publication No. Hei 3-23828 entitled "Full-Wave Rectification Device" for Vehicle", for example.
As shown in FIGS. 1".and 15. in this publication (reference numerals used herein in the description of the
2

prior art are the same as those used in this publication), a metallic member 38 (which will be hereinafter referred to as "first board") is mounted through an insulating layer 34 on a metallic plate 33. A circuit board 54 {which will be hereinafter referred to as "second board") is placed on the metallic member 38 in a layered structure, and rectifier elements 39 and 40 and a thyristor 41 are mounted on the metallic member 38. Further, AC input terminals 58, 59, and 60 (which will be hereinafter referred to as "wires") and DC input terminals 61 and 62 (which will be hereinafter referred to as "wires") are mounted on one end of the metallic member 38.
[0003]
[Problems to be Solved by the Invention]
In the above-mentioned full-wave rectification device, the second board is laid over the first board in a layered structure to increase the area of a control board, so that a large number of control elements including the rectifier elements 39 and 40 and the thyristor 41 can be mounted on the control board.
However, the wires increase in number with an increase in number of the control elements including the rectifier elements 39 and 40 and the thyristor 41. As a
3

result, the spacing between the wires decreases with an increase in number of the wires, causing a difficulty of production of the device and a requirement for much consideration to the quality of the device. Further, since the wires are collectively arranged at one position, a coupler connected to the wires becomes large in size, so that it is difficult to fit the device in a narrow space and the degree of freedom of design of the device is limited. [0004]
It is accordingly an object of the present invention to provide a technique for allowing a control device on which many control elements are mounted to be easily fitted in a narrow space. [0005] [Means for Solving the Problems]
According to claim 1, there is provided a control device for a vehicle having a plurality of control boards arranged in a layered structure, a plurality of control elements mounted on each of the control boards, and a case for enclosing the control boards to provide a unit structure, wherein wires extending from the control boards are allocated to a plurality of couplers. [0006]
4

The layered structure of the plural control boards each mounting the control elements is preferable in increasing the area of a control board to thereby increase the number of control elements that can be mounted on the control board. Further, the unit structure*." obtained by enclosing the control boards each mounting the control elements in the case is preferable in facilitating the mounting of the control device on the vehicle.
In this respect, the control device of the present invention has the layered structure of the control boards and the unit structure of the case enclosing the control boards. Furthermore, the wires extending from the control
boards are allocated to the plural couplers.
By allocating the wires extending from the control
boards to the plural couplers, the degree of freedom of layout in mounting the control device on the vehicle can
be increased, and the degree of freedom of design of the
control device can also be increased.
As a result, the design of the vehicle can be
improved by. the increase in the degree of freedom of
layout. Further, the cost of the control device can be
reduced by the increase in the degree of freedom of
design.
5

[0007]
According to claim 2, the couplers are mounted on different wall surfaces of the case.
With the arrangement that the couplers are mounted on different wall surfaces of the case, wire harnesses extending from the couplers can be located on the sides of the different wall surfaces, so that the degree of freedom of layout can be further increased. [0008]
According to claim 3, the couplers are arranged in a lateral direction of the vehicle in mounting the case on the vehicle.
With the arrangement that the couplers are arranged in the lateral direction of the vehicle, the workability in maintenance of the control device can be improved. [0009]
According to claim 4, semiconductor elements having high heating values as some of the control elements are collectively mounted on one of the plural control boards.
With the arrangement that the semiconductor elements having high heating values as some of the control elements are collectively mounted on one of the plural control boards, thermal effects on the other control elements can be minimized.
6

[0010]
According to claim 5, the case is formed of metal, and the semiconductor elements having high heating values are mounted through the control board on the metallic case.
With the arrangement that the case is formed of metal and the semiconductor elements having high heating values are mounted through the control board on the metallic case, heat radiation from the semiconductor elements having high heating values can be accelerated. [0011]
According to claim 6, the metallic case has a radiating surface formed with a plurality of radiating fins.
With the arrangement that the metallic case has a radiating surface formed with a plurality of radiating fins, the heat radiation from the control device can be further accelerated. [0012]
According to claim 7, the couplers are provided so as to respectively correspond to the plural control boards.
With the arrangement that the couplers are provide-so as to respectively correspond to the plural control
7

boards, the mount densities of the control boards can be uniformed.
[0013]
[Mode for Carrying out the Invention]
A preferred embodiment of the present invention will now be described with reference to the attached drawings. In the following description, the terms of "front", "rear"";" "left", "right", "upper", and "lower" are meant with respect to an operator riding on the _ vehicle, and Fr, Rr, L, and R denote the front side, rear side, left side, and right side, respectively. Further, . each drawing is to be viewed in the same orientation as that of reference numerals shown thereon.
[Brief Description of the Drawings] [FIG. 1]
FIG. 1 is a side view of a motorcycle on which the
8

control device for the vehicle according to the present invention is mounted. [FIG. 2]
FIG. 2 is a perspective view of a rear fender with which the control device for the vehicle according to the present invention is assembled. [FIG. 3]
FIG. 3 is a cross section taken along the line 3-3 in FIG. 2. [FIG. 4]
FIG. 4 is a view taken in the direction of the arrow 4 in FIG. 2. [FIG. 5]
FIG. 5 is a cross section taken along the line 5-5 in FIG. 4. [FIG. 6]
FIGS. 6(a) and 6(b) are sectional views for illustrating the operation of the control device for the vehicle according to the present invention. [FIG. 7]
FIG. 7 is a plan view showing a mounted condition of the control device for the vehicle according to the present invention. [FIG. 8]

FIG. "8 is a circuit diagram of the control device for the vehicle according to the present invention. {FIG.- 9}
FIG, 9 is a plan view showing a mounted condition of a fuel pump on the motorcycle. [FIG. 10]
FIG. 10 is a perspective view showing the mounted condition of the fuel pump. [FIG. 11]
FIG. li is a perspective view of an engine of the motorcycle as viewed from the left side thereof. [FIG. 12]
FIG. 12 is a plan view of* the engine and a portion in the vicinity thereof. [FIG. 13]
FIG. 13 is a perspective view of the engine as viewed from the right side thereof. [FIG. 14]
FIG. 14 is a plan view of a rear portion of the motorcycle.

[0014]
FIG. 1 is a side view of a motorcycle 10 on which the control device for the vehicle according to the present invention is mounted.
The motorcycle 10 as the vehicle; is a scooter type motorcycle composed mainly of a body frame 11 having a head pipe 11a, a front fork 12 mounted on the head pipe . 11a of the body frame 11, a front wheel 13 mounted on the front fork 12 at its lower ends, a steering handle 14 connected to the front fork 12 at its upper end, a unit swing engine 15 vertically swingably mounted on the body
i

frame 11 at its rear portion, a rear wheel 16 mounted on the unit swing engine 15, a rear cushion unit 17 suspending a rear end portion of the unit swing engine 15, a storage box (luggage box) 18 mounted on the body frame 11 at its rear upper portion, and a seat 19 pivotably mounted so as to allow the storage box 18 to be opened and closed at its upper side. [0015]
The body frame 11 is composed of a die-cast front frame llFr, a die-cast rear frame 11Rr, and a connecting portion 11X connecting the front frame llFr and the rear frame 11Rr. The front frame llFr is integrally formed with the head pipe 11a.
The unit swing engine 15 is composed of an engine 21 and a belt-converter continuously variable transmission 22 with a centrifugal clutch. The engine 21 is a water-cooled four-cycle engine whose cylinder portion is exposed between the storage box 18 and a fuel tank 35 and inclined frontward to a substantially horizontal position. As will be hereinafter described, the cylinder portion of the engine 21 includes a cylinder block 307, a cylinder head 308, and a head cover 311. [0016]
The body frame 11 is covered with a body cover 24.

The body cover 24 is composed of a front cover 25 covering a front portion of the head pipe 11a, a leg shield 26 covering a rear portion of the head pipe 11a so as to face the front cover 25 for covering the front side of the legs of the operator, a step floor (low-floor type foot rest) 27 for providing a rest for the feet of the operator, a pair of right and left floor side covers 28 projecting downward from the opposite side edges of the step floor 21, an under cover 29 covering the lower side of the floor side covers 28 so as to connect the lower edges thereof, a seat under cover 31 covering a front portion of the storage box 18 under the seat 19, a rear cover 32 covering a rear portion of the storage box 18 under the seat 19 and the upper side of the rear wheel 16, and a pair of right and left side covers 33 connected to the opposite side edges of the seat under cover 31 and the rear cover 32. [0017]
A main switch 34 is provided inside of the leg shield 26. A fuel tank 35 and a fuel pump 36 are provided under the step floor 27. A radiator reservoir tank 37, a battery 38, and a control unit 39 are provided on the body frame 11 at its rear upper end portion.
A meter unit 40 is provided near the steering

handle 14 to display a vehicle speed during running of the vehicle and display other kinds of information such as time in a rest condition of the vehicle. [0018]
The motorcycle 10 further includes an air cleaner 41 provided on the left side of the vehicle body, a carburetor 42, an engine cooling radiator 43 provided at the right end of a crankshaft 21a of the engine 21, an exhaust pipe 44 extending from the engine 21, an exhaust muffler 45 provided on the right side of the vehicle body, a front fender 46 fixed to the front fork 12, a rear fender 47, a headlight 48, a mirror 92, a pair of right and left front winkers 93R and 93L, a front handle cover 94Fr, a rear handle cover 94Rr, a horn 95 provided inside of the front cover 25, an engine hanger 96, an engine starting kick pedal 97, a main stand 98, a carrier 99, a cylinder block 307, a cylinder head 308, a head cover 311, an intake pipe 312, an intake manifold 313, and a helmet He.,
Reference numerals 35a and 91 denote a fuel filler cap with a lock and a fuel filler lid, respectively. When the fuel filler lid 91 is opened up to the front side in supplying a fuel to the fuel" tank 35, the fuel filler cap 35a is exposed.

[0019]
The motorcycle 10 further includes a pair of right and left handle grips 51R and 51L, a pair of right and left brake levers 52R and 52L, a pair of brake switches 53R and 53L to be operated by the brake levers 52R and 52L, respectively, a water temperature sensor 54 for detecting the temperature of a cooling water for the engine 21, a speed sensor 55 provided on the power transmitting mechanism 2 2 at a position near the rear wheel 16 for detecting a vehicle speed, a fuel unit 56 composed mainly of a resistor for detecting a remaining fuel amount, a stop lamp 57, a lighting circuit unit 58 for turning on the stop lamp 57, and a pair of right and left rear winkers 59R and 59L. The speed sensor 55 is preferably provided by a Hall sensor using a Hall element. [0020]
FIG. 2 is a perspective view of the rear fender 47 with which the control device for the vehicle according to the present invention is assembled. The rear wheel 47 is composed of a body portion 61, a tray portion 62 formed integrally with the body portion 61 at its front end, and a rear portion 63 mounted on the body portion 61 at its rear end. [0021]

As shown in FIG. 2, a control device. 70 is assembled with the tray portion 62 of the rear fender 47. Although not shown in FIG. 2, the radiator reservoir tank 37 and the battery 38 shown in FIG. 1 are also assembled with the tray portion 62 of the rear fender 47. Thus, the rear fender 47 with which the control device 70, the radiator reservoir tank 37, and the battery 38 are preliminarily assembled is mounted on the body frame 11 (see FIG. 1). Since the assembly of the rear fender 47 with the control device 70, the radiator reservoir tank 37, and the battery 38 is mounted on the body frame 11, the assemblability of the vehicle can be improved and the serviceability can also be improved. [0022]
FIG. 3 is a cross section taken along the line 3-3 in FIG. 2. As shown in FIG. 3, the control device 70 includes a first unit board 71 having a plurality of semiconductor elements 76 as control elements having high heating values; a first coupler 81 connected to the first unit board 71; a first filler 73 for fixing the first unit board 71; a second unit board 72 having a plurality of semiconductor elements 77 {only one of them being shown} as control elements having low heating values, electrolytic capacitors 7 8 having relatively large

heights, and passive elements 79 such as resistors; a second coupler 82 connected to the second unit board 72, a second filler 74 for fixing the second unit board 72, and a case 75 for enclosing the first and second unit boards 71 and 72 and the first and second fillers 73 and 74 and for mounting the first and second couplers 81 and 82. The control device 70 functions to control ignition to the engine 21 (see FIG. 1), control charge/discharge to the battery 38 (see FIG. 1), and control the operation of a starter motor (not shown). Reference numeral 88 denotes one of a plurality of pin terminals for connecting the first unit board 71 to the second unit board 72. [0023]
The first unit board 71 is configured by mounting the semiconductor elements 76 having high heating values on a printed board 71a as a control board. The back surface of the printed board 71a is mounted directly on the case 75, so as to accelerate heat radiation from the semiconductor elements 76. Accordingly, the printed board 71a is preferably formed from a board having good thermal conductivity, such as a board using glass fabric based epoxy resin or fluororesin.
The second unit board 72 is configured by mounting

the semiconductor elements 77 having low heating values, the electrolytic capacitors 78, and the passive elements 79 on a printed board 72a as another control board. The printed board 72a may be formed from a general phenol-resin printed board. [0024]
The first filler 73 is preferably formed of a resin material having good thermal conductivity, such as silicone resin. The second filler" 74 may be formed from a general filler.
The case 75 is a metallic case formed of light metal. The case 75 is formed with a relatively deep recess 83, a relatively shallow recess 84, a partition wall 85 for separating the recesses 83 and 84 from each other, a plurality of radiating fins 86a, 86b, and 86c for accelerating heat radiation (the radiating fins 86a and 86c being shown in FIG. 2), and a plurality of projections 87 to be mounted on an external member. Each projection 87 is formed with a hole 87a for insertion of a screw. [0025]
Thus, the control device 70 is characterized in that the semiconductor elements 76 having high heating values as control elements are collectively mounted on
18

one of the plural control boards (the printed boards 71a and 72a).
By collectively mounting the semiconductor elements
76 having high heating values as control elements on one
of the plural printed boards 71a and 72a, thermal ef-fects
on the other control elements (the semiconductor elements
77 having low heating values) can be minimized.
[0026]
The control device 70 is further characterized in that the case 75 is a metallic case and that the semiconductor elements 76 having high heating values are mounted through the control board (the printed board 71a) on this metallic case 75.
Since the case 75 is a metallic case and the semiconductor elements 76 having high heating values are mounted through the printed board 71a on this metallic case 75, heat radiation from the semiconductor elements 76 having high heating values can be accelerated. [0027]
FIG. 4 is a view taken in the direction of the arrow 4 in FIG. 2, showing a plan view of the control device 70.
The first coupler 81 includes a housing 81a, a plurality of L-shaped terminals 81b and 81c extending

from the housing 81a, and a wire harness 81d connected to the terminals 81b and 81c. Similarly, the second coupler 82 includes a housing 82a, a plurality of L-shaped terminals 82b and 82c extending from the housing 82a, and a wire harness 82d connected to the terminals 82b and 82c. The terminals 81b and 81c of the first coupler 81 are connected to the printed board 71a, and the terminals 82b and 82c of the second coupler 82 are connected to the printed board 72a. [0028]
Thus, the control device 70 is a control unit having a plurality of control boards each mounting control elements in a layered structure and a case enclosing these control boards. The control device 7 0 is further characterized in that wires (the wire harnesses 81d and 82d) extending from the control boards (the printed boards 71a and 72a) are allocated to a plurality of couplers (the first and second couplers 81 and 82). [0029]
The layered structure of the printed boards 71a and 72a mounting the control elements (the semiconductor elements 76 having high heating values and the semiconductor elements 77 having low heating values as shown in FIG. 3) is preferable in increasing the area of

a control board to thereby increase the number of control elements that can be mounted on the control board. Further, the unit structure obtained by enclosing the printed boards 71a and 72a mounting the control elements in the case 75 is preferable in facilitating the mounting of the control device 70 on the vehicle. [0030]
In this respect, the control device 70 has the layered structure of the printed boards 71a and 72a and the unit structure of the case 7 5 enclosing the printed boards 71a and 72a. Furthermore, the wires extending from the printed boards 71a and 72a are allocated to the first and second couplers 81 and 8 2 in the control device 7 0. With this arrangement, the degree of freedom of layout in mounting the control device 70 on the vehicle can be increased, and the degree of freedom of design of the control device 70 can also be increased.
By increasing the degree of freedom of layout, the design of the vehicle can be improved. By increasing the degree of freedom of design, the cost of the control device 70 can be reduced. [0031]
FIG. 5 is a cross section taken along the line 5-5 in FIG. 4. As shown in FIG. 5, the first coupler 81 is

connected to the printed board 71a, and the second coupler 82 is connected to the printed board 72a. That is, the first and second couplers 81 and 82 are provided so as to respectively correspond to the printed boards 71a and 72a.
Since the first and second couplers 81 and 82 are provided so as to respectively correspond to the printed boards 71a and^72a (control boards), the mount densities of the control boards can be uniformed. [0032]
The operation of the control device 70 will now be described.
FIGS. 6(a) and 6(b) illustrate the operation of the control device 70. As shown in FIG. 6(a), the semiconductor elements 7 6 having high heating values are mounted on the printed board 71a, and the back surface of the printed board 71a is fixed directly to the case 75. Accordingly, heat generated from the semiconductor elements 7 6 can be radiated as shown by the arrows ®. Further, the case 75 has the radiating fins 86a, 86b, and 86c (the fins 86a and 86c being shown in FIG. 2), so that the heat radiation from the semiconductor elements 76 can be accelerated. [0033]

The case 75 is a metallic case, and the semiconductor elements 76 having high heating values are mounted through the control board (the.printed board 71a) on the metallic case 75. Accordingly, the heat radiation from the semiconductor elements 76 can be further accelerated.
As shown in FIG. 6(b), the case 75 has the relatively deep recess 83. Accordingly, the electrolytic capacitors 78 having relatively large heights can be easily accommodated in the recess 83. [0034]
FIG. 7 is a plan view showing a mounted condition of the control device 70. As shown in FIG. 7, the first coupler 81 is mounted on a wall surface 75a of the case 75, and the second coupler 82 is mounted on another wall surface 75b of the case 75. Accordingly, the wire harnesses 81d and 82d respectively extending from the first and second couplers 81 and 82 can be easily disposed in a given space. [0035]
Thus, the control device 70 is further characterized in that the first and second couplers 81 and 82 are mounted on the different wall surfaces 75a and 7 5b of the case 75. With this arrangement, the wire

harnesses 81d and 82d respectively extending from the first and second couplers 81 and 82 can also be located on the sides of the different wall surfaces 75a and 75b, respectively. Accordingly, the degree of freedom of layout of the control device 70 can be further increased. [0036]
The control device 7 0 is further characterized in that the first and second couplers 81 and 82 are arranged in the lateral direction of the vehicle in mounting the case 75 on the vehicle.
Since the first and second couplers 81 and 82 are arranged in the lateral direction in mounting the case 75 on the body frame 11 {see FIG. 1), the workability in maintenance of the control device 7 0 can be improved. [0037]
FIG. 8 is a circuit diagram of a power supply system 24 0 including the control device 7 0. The power supply system 240 includes a battery 38, a battery isolation relay 242 connected through a main fuse 241 to the battery 38, a starter relay 243 connected to the battery isolation relay 242 and the battery 38, an ACG starter 233 connected through a boosting rectifier circuit 244 to the starter relay 243, FET driving means 253 for driving FETs 245 to 250 constituting the boosting

rectifier circuit 244, an oscillator 254 and control means 255 for supplying pulses for chopper (which means conversion of a direct current into.an alternating current, next amplification (boosting) in the AC state, and next reconversion of the amplified AC output into a direct current) to the FET driving means 253, a main switch 34 connected through a first diode 256 and a second diode 257 to the battery 38 and the ACG starter 233, respectively, a starter switch 212 connected to the main switcn 54 and" the control means 255, FETs 262 ancf 263 respectively connected to a fue^ pump 36 and a general load 261 to which power is supplied from the battery isolation relay 242 through a sub-fuse 258, and an FET 264 connected to the starter relay 243. [0038]
The control device 70 has a circuit composed mainly of the oscillator 254, the control means 255, the FETs 245 to 250 as the semiconductor elements 76 (see FIG. 3), the FET driving means 253, the FETs 262 to 264 as the semiconductor elements 77 (see FIG. 3)t and a CDI (Capacitive Discharge Ignition) device 217 to be hereinafter described. [0039]
The starter switch 212 is composed of a first fixed

contact 2 66 connected to the main switch 34, a second fixed contact 2 67 connected to the control means 2 55, and a movable contact 268 adapted to come into contact with or separation from the first and second fixed contacts 266 and 267. [0040]
The main switch 34 is composed of a fixed contact
271 connected to the control means 255, a movable contact
272 adapted to come into contact with or separation from the fixed contact 271 and connected to the battery 38 and the ACG starter 233, and an antitheft switch section 273 connected to the movable contact 272.
[00413
The antitheft switch section 273 is connected to an antitheft device (not shown) . When the movable contact 272 of the main switch 34 is in contact with the fixed contact 271 (i.e., on state), the antitheft switch section 273 is off, whereas when the movable contact 272 is in separation from the fixed contact 271 (i.e., off state), the antitheft switch section 273 is on.
[0042]
The ACG starter 233 functions both as a starter motor and as a three-phase AC generator. That is, when the ACG starter 233 functions as a starter motor, a

current is supplied from the battery 38 to three starter coils 233a to thereby start rotation of the crankshaft 21a {see FIG. 1), whereas when the ACG starter 233 functions as an ACG (three-phase Ac generator), an output is taken from the starter coils 233a. in the case that the ACG starter 233 is used as a starter motor, it is operated at a given battery voltage v3 or higher. [0043]
The battery isolation relay 242 is composed of a switch section 276 and" a coil 261 for operating the switch section 278. The switch section 278 is composed of a fixed contact 276 connected to the main fuse 241 and a movable contact 277 adapted to come into contact with or separation from the fixed contact 276 and connected to the starter relay 243. When no current is supplied to the coil 281, the switch section 278 is off. [0044]
The starter relay 243 is composed of a switch section 285 and a coil 286 for operating the switch section 285. The switch section 285 is composed of a first fixed contact 282 connected to the battery isolation relay 242, a second fixed contact 283 connected to the battery 38, and a movable cohtact 284 adapted to . come into contact with or separation from one of the

first and second fixed contacts 282 and 283 and connected to the boosting rectifier circuit 244. The coil 286 operates to select the contact of the movable contact 284 and the first fixed contact 282 or the contact of the movable contact 284 and the second fixed contact 283. When no current is supplied to the coil 286, the movable contact 2 84 comes into contact with the first fixed contact 282, whereas when a current is supplied to the coil 286, the movable contact 284 comes into contact with the second fixed contact 283. [0045]
The,boosting rectifier circuit 244 (power section) is composed of the FETs 245 to 250, diodes 291 to 296 as parasitic diodes each connected between the drain and the source of each of the FETs 245 to 250, respectively, and a capacitor 201 connected between output terminal portions 297 and 298. The diodes 291 to 296 constitute a three-phase full-wave rectifier circuit, and the FETs 245 to 250 constitute a switch circuit for chopper. When the ACG starter 233 operates as a starter, the switch circuit functions as a driver, whereas when the ACG starter 233 operates as an ACG, the switch circuit functions as a regulator. [0046]

Each of the FETs 245 to 250 and the FETs 262 to 264 is a P-channel MOS FET {Field Effect Transistor), wherein a drain current flowing between the drain and the source is controlled by a gate voltage applied between the gate and the source. [0047]
The FET driving means 253 receives pulses from the oscillator 254 or the control means 255 and applies drive signals having rectangular waveforms to the gates of the FETs- 245 to 250 in synchronism with the frequency of the pulses. [0048]
The oscillator 254 is started when the voltage supplied from the battery 38 or the ACG starter 233 becomes VI, and generates oscillation pulses having a given amplitude, a given pulse width, and a given pulse spacing. That is, the oscillator 254 generates the oscillation pulses at the starting voltage VI or higher. [0049]
The control means 255 controls the switching operation of the FETs 262 to 264 as switches, and includes a central processing unit (CPU) 255a (which will be hereinafter referred to as "CPU 255a") . The CPU 255a includes a clock generator (not shown) for generating

periodic pulses at given time intervals. [0050]
The CPU 255a is started when the voltage supplied from the battery 38 or the ACG starter 233 becomes V2, and generates pulses (which will be hereinafter referred to as "CPU pulses") having a given amplitude, a given pulse width, and a given pulse spacing according to the pulses generated from the clock generator. That is, the CPU 255a generates the CPU pulses at the starting voltage V2 or higher. [0051]
The CPU 255a generates the CPU pulses for a given time period after starting. However, when an ignition pulser signal from an ignition pulser signal generating device (not shown) is detected during this given time period, the CPU 255a continues to generate the CPU pulses also after this given time period until the engine speed becomes a given value or more or the battery voltage becomes a given value or more. When the engine speed lowers to a constant value or less or when the engine rotation is stopped, the generation of the CPU pulses is ended. [0052]
The control means 255 controls the gate voltage at

each of the FETs 262 to 264 to thereby perform on/off control between the drain and the source of each of the FETs 262 to 264.
The control means 255 further generates a control signal for operating the CDI device 217 in the control device 70. [0053]
The CDI device 217 is designed so that electricity is generated from an igniting coil (not shown) provided in the ACG starter 233, that this electricity is rectified by a diode and once accumulated by an igniting capacitor, and that an electrical signal is applied to the gate of a thyristor connected to the igniting capacitor in the off state of the thyristor, thereby turning on the thyristor to discharge the electric power accumulated in the igniting capacitor. The discharged current is passed through a primary winding 207 of an ignition coil 206 to generate a high voltage at a secondary winding 208 and emit a spark at a spark plug 238. [0054]
The first diode 256 functions to allow a current to flow in only a direction from the battery 38 toward the main switch 34 and to inhibit a current flow from the ACG

starter 233 toward the battery 38.
The second diode 257 functions to allow a current to flow in only a direction from the ACG starter 233 toward the main switch 34 and to inhibit a current flow from the battery 38 toward the ACG starter 233.
Thus, the first and second diodes 256 and 257 are provided to pass a current having a fixed direction through the control means 255, thereby protecting the control means 255. [0055]
The general load 261 is an electrical load except a fuel supply system load including the fuel pump 36 and an ignition system load including the CDI device 217 and the spark plug 238. The general load 261 primarily includes the headlight 48, the stop lamp 57, the meter unit 40, and the horn 95 (see FIG. 1).
The diodes 203 to 205 are parasitic diodes in the FETs 262 to 264, respectively. [0056]
The boosting rectifier circuit 244, the FET driving means 253, the oscillator 254, and the control means 255 constitute a generation voltage boosting device 210. The FETs 262 to 264 and the control means 255 constitute a power control device 211.
32

[0057]
FIG. 9 is a plan view showing a mounted condition of the electromagnetic fuel pump 36. As shown in FIG. 9, the fuel pump 36 is mounted on the upper surface of the under cover 29 by nuts 301. A fuel filter 302 is connected through a hose 321 to the fuel tank 35 {see FIG. 1) , and the fuel pump 36 is connected through a hose 303 to the fuel filter 302. The direction shown by a hollow arrow in FIG. 9 indicates the front side of the vehicle (the same applies in the subsequent drawings). [0058]
FIG. 10 is a perspective view showing the mounted condition of the fuel pump 36 as viewed from the front upper side of the engine 21.
Reference numeral 3 04 denotes a check valve for allowing a fuel to flow in only a direction from the fuel pump 36 to the carburetor 42 (see FIG. 1). The check valve 304 is connected through a hose 305 to the fuel pump 3 6.
The fuel pump 36 is located on the right lower side of a cylinder head 308 to be hereinafter described. A shade 29a is interposed between the engine 21 and a fuel system including the fuel pump 36 to protect the fuel system. More specifically, the shade 29a is interposed

between a head cover 311 and the assembly of the fuel pump 36 and the fuel filter 302.
Reference numeral 206 denotes an ignition coil. [0059]"
FIG. 11 is a perspective view of the engine 21. The engine 21 includes a crankcase 306, a cylinder block 307 mounted on the crankcase 306 at its front portion, a cylinder head 308 mounted on the cylinder block 307 at its front portion, a head cover 311 covering the front end of the cylinder head 3 08, a carburetor 42 located above the crankcase 3 06, an intake pipe 312 extending from the carburetor 42 toward the cylinder head 308, an intake manifold 313 connected with the intake pipe 312 and mounted on the cylinder head 3 08, a connecting tube 314 connected between the carburetor 42 and the air cleaner 41 (see FIG. 1), a plug cap 317 connected through a high-tension cord 316 to the ignition coil 206, a spark plug 238 covered with the plug cap 317, and a radiator 43 mounted on a side surface of the crankcase 306.
The engine hanger 96 is composed of a pair of left and right hanger plates 96a and 96b and a pipe 96c connecting the hanger plates 96a and 96b. Reference numeral 319 denotes a breather tube. [0060]

FIG. 12 is a plan view of the engine 21 and a portion near the engine 21. As shown in FIG. 12, the carburetor 42 is located above the engine 21, and a throttle cable 325 extending from the steering handle 14 (see FIG. 1) is connected at one end thereof:to the carburetor 42. A seat catch frame 326 for mounting a seat catch {not shown) for retaining the seat 19 {see FIG. 1) is mounted on the rear frame llRr at its rear portion. The radiator reservoir tank 37 and the battery 38 are located below the seat catch frame 326.
The maintenance of the reservoir tank 37 and the battery 38 can be made by removing a maintenance lid (not shown) detachably mounted on a rear wall of the storage box 18 (see FIG. 1). Thus, good maintainability of the reservoir tank 37 and the battery 3 8 is ensured.
In FIG. 12, reference numeral 328 denotes a band for fixing the battery 38; 341 denotes a positive terminal of the battery 38, the positive terminal 341 being integrated with a fuse box 347; 342 denotes a negative terminal of the battery 38; 343 denotes a conductor connected to the negative terminal 342; and 345 denotes a secondary air induction tube connected to a reed valve 346 (see FIG. 11) mounted on the head cover 311 (see FIG. 11) to supply air from the air cleaner 41

(see FIG. 1) to the intake passage of the engine 21. [0061]
FIG. 13 is a perspective view of the engine 21, showing a mounted condition of the radiator 43 on the right side of the engine 21. Reference numeral 348 denotes a radiator cover for covering the body of the radiator 43. The radiator cover 348 serves also as a cooling air guide. Reference numeral 351 denotes a radiator cap. [0062]
FIG. 14 is a plan view of a rear portion of the motorcycle 10 (see FIG. 1), showing a condition where the control unit 39 {see FIG. 1) has been removed. As shown in FIG. 14, the reservoir tank 37 is connected through a hose 363 to the radiator 43 (see FIG. 1), and the battery isolation relay 242 is located behind the battery 38. Reference numeral 366 denotes a stand unlock cable for releasing a locked condition of the main stand 98 (see FIG. 1) (i.e., a condition where the main stand 98 is locked to maintain its lowered position); 367 denotes a seat unlock cable for releasing a locked condition of the seat 19 {see FIG. 1) (i.e., a condition where the seat 19 is locked to maintain its closed position); 368 denotes a relay cord connected to the battery isolation relay 242;
36

and 371 denotes a battery cord connected to the battery 38.
[0063]
While the back surface of the printed board 71a is mounted directly on the case 75 as shown in FIG. 3 to accelerate the heat radiation from the semiconductor elements 76 in this preferred embodiment, the control elements (the semiconductor elements 76) may be mounted directly on the case 75.
Further, while the present invention is applied to the motorcycle 10 as the vehicle in this preferred embodiment, the vehicle may be a three-wheeled vehicle or a four-wheeled vehicle. [0064] [Effects of the Invention]
The following effects can be exhibited by the above configuration of the present invention.
The control device for the vehicle as defined in claim 1 has a plurality of control boards arranged in a layered structure, a plurality of control elements mounted on each control board, and a case for enclosing the control boards to provide a unit structure, wherein wires extending from the control boards are allocated to a plurality of couplers. With this arrangement, the

degree of freedom of layout of the control device in,, mounting it on the vehicle can be increased, and the degree of freedom of design of th§ control device can also be increased.
As a result, the design of the vehicle can be improved by the increase in the degree of freedom of layout. Further, the cost of the control device can be reduced by the increase in the degree of freedom of design. [0065]
According to claim 2, the couplers are mounted on different wall surfaces of the case. With this arrangement, wire harnesses extending from the couplers can be located on the sides of the different wall surfaces, so that the degree of freedom of layout can be further increased. [0066]
According to claim 3, the couplers are arranged in the lateral direction of the vehicle in mounting the case on the vehicle. With this arrangement, the workability in maintenance of the control device can be improved. [0067]
According to claim 4, semiconductor elements having high heating values as some of the control elements are

collectively mounted on one-of the plural control boards. With this arrangement, thermal effects on the other control elements can be minimized.. [0068]
According to claim 5, the case is formed of- metal, and the semiconductor elements having high heating values are mounted through the control board on the metallic case.. With this arrangement, heat radiation from the semiconductor elements having high heating values can be accelerated. [0069]
According to claim 6, the metallic case has a radiating surface formed with a plurality of radiating fins. With this arrangement, the heat radiation from the control device can be further accelerated. [0070]
According to claim 7, the couplers are provided so as to respectively correspond to the plural control boards. With this arrangement, the mount densities of the control boards can be.uniformed.
[Description of Reference Numerals]
10 „. vehicle (motorcycle) , 7o ... control device for the vehicle, 71a, 72a ... control boards (printed boards) , 75 ... case, 75a, 75b „. wall surfaces, 76 _. control elements (semiconductor elements having high heating values), 77 ... control elements (semiconductor elements having low Jie_ating values), 81, 82 „ first and second couplers (couplers), 81d, "82d „ wires, (wire harnesses).
39

We Claim:
1. A control unit for a vehicle in which a plurality of control boards on
each of which a control element is mounted are stacked to form a
layered structure and housed in a case for unitization,
wherein lines extending from the respective control boards are distributed to a plurality of respective couplers, which are installed on respective different wall surfaces of the case, and of the control elements semiconductor elements generating much heat are collected in one of the plurality of control boards, and
a metallic case is used as the case, which is provided on a radiation surface thereof with a radiation fin extending in a back and forth direction of the vehicle, the metallic case is provided with a shallow recess portion and with a deep recess portion, if the control board on which the semiconductor elements generating much heat are mounted is called a first control board, the first control board is housed in the shallow recess portion and a tall control element is housed in the deep recess portion, and the control board collecting the semiconductor elements heating much heat is disposed on an upper wall surface on the front side of and inside of the metallic case in a state where the control unit is mounted on the vehicle.
2. The vehicle control unit as claimed in claim 1, wherein the
couplers are each provided a corresponding one of the plurality of
control boards.

3. The vehicle control unit as claimed in claim 1, wherein the tall control elements are collected on one side of one of the control boards, and of the control elements semiconductors generating less heat are collected on the other side of the one of the control boards, and if this control board is called a second control board, the other side of the second control board is hierarchically arranged so as to have a rear surface opposite to the semiconductor elements generating much heat.
Dated this 26/11/2001
RITUSHK^NEGI
Of Remfry & Kagar Attorney for the applicant(s)

Documents:

1129-mum-2001-abstract(30-8-2007).doc

1129-mum-2001-abstract(30-8-2007).pdf

1129-mum-2001-abstract.pdf

1129-mum-2001-cancelled pages(30-8-2007).pdf

1129-mum-2001-claim(granted)-(30-8-2007).doc

1129-mum-2001-claims(granted)-(30-8-2007).pdf

1129-mum-2001-claims.pdf

1129-mum-2001-correspondence(30-8-2007).pdf

1129-mum-2001-correspondence(ipo)-(11-9-2006).pdf

1129-mum-2001-correspondence(ipo).pdf

1129-mum-2001-correspondence.pdf

1129-mum-2001-description(granted).pdf

1129-mum-2001-drawing(30-8-2007).pdf

1129-mum-2001-drawing.pdf

1129-mum-2001-form 1(26-11-2001).pdf

1129-mum-2001-form 1(30-8-2007).pdf

1129-mum-2001-form 1-26-11-2001.pdf

1129-mum-2001-form 1-30-08-2007.pdf

1129-mum-2001-form 13(30-8-2007).pdf

1129-mum-2001-form 13.pdf

1129-mum-2001-form 18(16-11-2005).pdf

1129-mum-2001-form 18.pdf

1129-mum-2001-form 2(granted)-(30-8-2007).doc

1129-mum-2001-form 2(granted)-(30-8-2007).pdf

1129-mum-2001-form 2(granted).pdf

1129-mum-2001-form 2(title page).pdf

1129-mum-2001-form 2-cancelled.pdf

1129-mum-2001-form 3(26-11-2001).pdf

1129-mum-2001-form 3(30-8-2007).pdf

1129-mum-2001-form 3.pdf

1129-mum-2001-form 5(26-11-2001).pdf

1129-mum-2001-form 5(30-8-2007).pdf

1129-mum-2001-japanese government.pdf

1129-mum-2001-petition under rule 137(30-8-2007).pdf

1129-mum-2001-petition under rule 138(30-8-2007).pdf

1129-mum-2001-power of authority(30-8-2007).pdf

1129-mum-2001-power of authority(8-3-2002).pdf

1129-mum-2001-power of authourity.pdf

1129-mum-2001-specification.pdf

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Patent Number

209917

Indian Patent Application Number

1129/MUM/2001

PG Journal Number

38/2007

Publication Date

21-Sep-2007

Grant Date

11-Sep-2007

Date of Filing

26-Nov-2001

Name of Patentee

HONDA GIKEN KOGYO KABUSHIKI KAISHA

Applicant Address

1-1 MINAMIAOYAMA 2-CHOME, MINATO-KU, TOKYO, JAPAN

Inventors:

#	Inventor's Name	Inventor's Address
1	ATSUO OTA	C/O KABUSHIKI KAISHA HONDA GIJUTSU KENKYUSHO, 4-1, CHUO 1-CHOME, WAKO-SHI, SAITAMA, JAPAN
2	KANICHIROU OGIYA	C/O KABUSHIKI KAISHA HONDA GIJUTSU KENKYUSHO, 4-1, CHUO 1-CHOME, WAKO-SHI, SAITAMA

PCT International Classification Number

H02M7/04, B60R16/02

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	2001-001937	2001-01-09	Japan