JP6695921B2 - Saddle type vehicle - Google Patents

Description

  The present invention is directed to a main frame that extends rearward and downward from a head pipe, a down frame that extends downward from the head pipe below the main frame, an internal combustion engine supported by the main frame and the down frame, and a main frame behind the main frame. The present invention relates to a saddle-ride type vehicle that is connected to a frame and includes an air cleaner that purifies outside air supplied to an internal combustion engine.

  Patent Document 1 discloses a control unit (ECU) that controls the operation of electrical components in a motorcycle. The control unit is attached to one side of the battery case. The control unit is arranged in a space sandwiched between the air cleaner and the battery case, and is arranged in a space surrounded by a main frame and a seat frame that branches vertically at a front end in a vehicle side view.

JP, 2017-171076, A

  In the field of motorcycles, an ACG (alternator) starter is generally known that generates power according to rotation of a crankshaft during traveling and functions as a starter according to supply of electric current at start. In such a motorcycle, since the ACG starter is added to the control target of the ECU, the ECU tends to increase in size, and a space for arranging the ECU is sought.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a saddle-ride type vehicle in which an electronic control unit that is increased in size can be arranged on a main frame.

According to the first aspect of the present invention, a main frame that extends rearward and downward from the head pipe and swingably supports a swing arm that supports an axle at a rear end, and a main frame below the main frame from the head pipe. A down frame that extends downward, and one end of a crank shaft that is supported by the main frame and the down frame and that is parallel to the axle, generate power according to rotation of the crank shaft during traveling and supply current when starting. An internal combustion engine having an alternator starter for driving the crankshaft, an air cleaner connected to the main frame behind the main frame to purify outside air supplied to the internal combustion engine, and a vehicle for the air cleaner. A saddle-ride type vehicle is provided, which is fixed to an outer surface on one side in the width direction and includes an electronic control unit that controls the operation of the alternator starter.

According to the second aspect, in addition to the configuration of the first aspect, the alternator starter is disposed on one lateral side of the same vehicle as the electronic control unit.

  According to the third aspect, in addition to the configuration of the first or second aspect, the alternator starter and the electronic control unit are arranged front and back with the main frame interposed therebetween.

  According to the fourth aspect, in addition to the configuration according to any one of the first to third aspects, the saddle-ride type vehicle is coupled to a crankcase that supports the crankshaft, and is disposed between the crankcase and the crankcase. The electronic control unit further includes a starter cover that accommodates an alternator starter, and the electronic control unit includes a first imaginary plane that is orthogonal to an axis of the crankshaft and includes a mating surface of the crankcase and the starter cover, and the first virtual plane. It is arranged between a second virtual plane that is parallel to the virtual plane and is in contact with the starter cover from the outside.

  According to the fifth aspect, in addition to the configuration of the fourth aspect, the harness extending from the alternator starter to the electronic control unit is arranged inside the second virtual plane.

  According to the sixth aspect, in addition to the configuration according to any one of the first to fifth aspects, a saddle-ride type vehicle is connected to the alternator starter and sandwiches the air cleaner with the electronic control unit. Further provided is a battery disposed on the opposite side.

  According to the seventh aspect, in addition to the configuration of any one of the first to sixth aspects, in the saddle-ride type vehicle, the air cleaner of the air cleaner is continuously provided from a tank cover that covers a fuel tank supported by the main frame. The vehicle further includes a side cover that guides the traveling wind toward the outer surface.

  According to the eighth aspect, in addition to the configuration of the seventh aspect, the saddle-ride type vehicle is arranged in a space sandwiched between the air cleaner and the alternator starter, is connected to the fuel tank, and is connected to the internal combustion engine. The fuel pump further includes a fuel pump for supplying fuel to the fuel pump.

  According to the ninth aspect, in addition to the configuration of any one of the first to eighth aspects, the saddle-ride type vehicle extends below the electronic control unit and has a rear end that supports the seat frame from below. A frame and a guide member fixed to the rear frame and for guiding a harness extending from the electronic control unit are further provided.

According to the first aspect, although the arrangement space for the air cleaner is restricted by the main frame, the electronic control unit is fixed to the outer surface on one side in the vehicle width direction of the air cleaner, so that the arrangement space for the electronic control unit is small. The electronic control unit is not restricted by the main frame, and the electronic control unit can be arranged on the main frame even if the electronic control unit is upsized.

  According to the second aspect, the distance between the alternator starter and the electronic control unit can be shortened, and as a result, the harness connecting the alternator starter and the electronic control unit can be shortened.

  According to the third aspect, the distance between the alternator starter and the electronic control unit can be shortened, and as a result, the harness connecting the alternator starter and the electronic control unit can be shortened.

  According to the fourth aspect, since the alternator starter and the electronic control unit are compactly arranged in the axial direction of the crankshaft, the harness can be shortened.

  According to the fifth side surface, the harness can be compactly arranged along the vehicle side surface.

  According to the sixth aspect, since the electronic control unit and the battery are arranged on the left and right with the air cleaner interposed, a good weight balance can be realized.

  According to the seventh aspect, the traveling wind is guided toward the electronic control unit, so that the electronic control unit can be effectively cooled.

  According to the eighth aspect, since the fuel pump is arranged close to the electronic control unit, the harness connecting the fuel pump and the electronic control unit can be shortened.

  According to the ninth aspect, since the direction of the harness is guided by the guide member, the interference between the harness and other components can be avoided.

FIG. 1 is a side view schematically showing an overall image of a motorcycle that is a saddle type vehicle according to an embodiment of the present invention. It is a side view which shows roughly the structure of the vehicle body frame of a motorcycle. It is an expanded sectional view of an internal-combustion engine which shows roughly a cutting plane containing a cylinder axis and an axis of a main shaft and a counter shaft. It is an enlarged horizontal sectional view of a motorcycle. FIG. 3 is an enlarged side view schematically showing a main part of the motorcycle centering on an electronic control unit (ECU). FIG. 3 is an enlarged side view schematically showing a main part of the motorcycle centering on a support plate that supports the ECU. FIG. 3 is an enlarged vertical sectional view of the motorcycle.

  An embodiment of the present invention will be described below with reference to the accompanying drawings. Here, the upper, lower, front, rear, left and right of the vehicle body are defined based on the line of sight of an occupant riding the motorcycle.

  FIG. 1 schematically shows an overall image of a motorcycle that is a saddle type vehicle according to an embodiment of the present invention. The motorcycle 11 includes a vehicle body frame 12 and a vehicle body cover 13 mounted on the vehicle body frame 12. The vehicle body cover 13 covers the fuel tank 15 and is connected to a passenger seat 17 behind the fuel tank 15 and a tank cover 18 which is continuous from the lower end of the tank cover 18 and extends along the lower edge of the fuel tank 15 toward the vehicle side. The vehicle has a side cover 19 that guides traveling wind from the front toward the rear of the vehicle, and a rear cover 21 that continuously covers the rear of the vehicle body frame 12 along the lower edge of the passenger seat 17 from the side cover 19. Fuel is stored in the fuel tank 15. When driving the motorcycle 11, the occupant straddles the occupant seat 17.

  As shown in FIG. 2, the vehicle body frame 12 includes a head pipe 14, a single main frame 23 extending rearward and downward from the head pipe 14 and having a pivot frame 22 at a rear lower end, and a main frame 23 below the main frame 23. The down frame 24 extending downward from the head pipe 14 at the position, the left and right seat frames 25 extending horizontally rearward from the curved region 23a of the main frame 23, and the seat frame 25 extending rearward and upward from the pivot frame 22. The rear frame 26 is joined to the seat frame 25 from below at the rear end. The rear frame 26 supports the seat frame 25 from below.

  A front fork 27 is steerably supported by the head pipe 14. A front wheel WF is supported on the front fork 27 so as to be rotatable around an axle 28. A steering handle 29 is coupled to the upper end of the front fork 27. When driving the motorcycle 11, the driver grips the left and right grips of the steering wheel 29.

  A swing arm 32 is connected to the body frame 12 at the rear of the vehicle so as to be swingable up and down around a pivot 31. A rear wheel WR is rotatably supported on the rear end of the swing arm 32 around an axle 33. An internal combustion engine 34 that produces a driving force transmitted to the rear wheels WR is mounted on the vehicle body frame 12 between the front wheels WF and the rear wheels WR. The power of the internal combustion engine 34 is transmitted to the rear wheels WR via the transmission device 35.

  The internal combustion engine 34 is disposed between the down frame 24 and the main frame 23, and is connected to and supported by the down frame 24 and the main frame 23, respectively, and a crankcase 36 that outputs power around the rotation axis Rx, and a crankcase. A cylinder block 37 extending upward from 36 and having a cylinder axis C inclined forward, a cylinder head 38 connected to the upper end of the cylinder block 37 and supporting a valve mechanism, and an upper end of the cylinder head 38. , A head cover 39 that covers the valve mechanism on the cylinder head 38.

  As shown in FIG. 3, a cylinder liner 41 is embedded in the cylinder block 37. A piston 42 is incorporated inside the cylinder liner 41. The cylinder liner 41 defines a cylinder 43 that guides the linear reciprocating motion of the piston 42 along the cylinder axis C. Here, the cylinder block 37 is formed with a single cylinder 43 that receives a single piston 42. A combustion chamber 44 is defined between the piston 42 and the cylinder head 38. An ignition plug 45 facing the combustion chamber 44 is attached to the cylinder head 38. The air-fuel mixture is introduced into the combustion chamber 44 by the action of the intake valve and the exhaust valve that open and close according to the rotation of the camshaft 46, and the exhaust gas after combustion is exhausted from the combustion chamber 44.

  The crankcase 36 is divided into a first case half 36a and a second case half 36b. The first case half body 36a and the second case half body 36b are opposed to each other on their inner surfaces. The first case half body 36a and the second case half body 36b are liquid-tightly coupled to each other at the mating surfaces and cooperate to define the crank chamber 47. A starter cover 49 that accommodates an AC generator (ACG) starter 48, which will be described later, is coupled to the outer surface of the first case half body 36a. A clutch cover 52 that accommodates a friction clutch 51, which will be described later, is coupled to the outer surface of the second case half body 36b.

  The crankshaft 53 is disposed between the journals 56a and 56b and the journals 56a and 56b connected to the ball bearings 54 and 55 which are fitted into the first case half body 36a and the second case half body 36b, respectively. And a crank 57 housed in 47. The crank 57 has a crank web 58 integrated with the journals 56 a and 56 b, and a crank pin 59 connecting the crank web 58 to each other. The axes of the journals 56a and 56b coincide with the rotation axis Rx. A large end portion of a connecting rod 61 extending from the piston 42 is rotatably connected to the crank pin 59. The connecting rod 61 converts the linear reciprocating motion of the piston 42 into the rotary motion of the crankshaft 53.

  An ACG (alternating current generator) starter 48 is connected to one end of a crankshaft 53 that projects outward from the crankcase 36 in one direction. The ACG starter 48 includes a stator 62 that is fixed to the outer surface of the crankcase 36, and a rotor 63 that is coupled to one end of a crankshaft 53 that protrudes from the crankcase 36 so that it cannot rotate relative to one another. The stator 62 has a plurality of coils 62a that are arranged in the circumferential direction around the crankshaft 53 and are wound around the stator core. The rotor 63 has a plurality of magnets 63 a arranged in the circumferential direction along an annular orbit surrounding the stator 62. When the crankshaft 53 rotates, the magnet 63a is displaced relative to the coil 62a, and the ACG starter 48 generates electricity. On the contrary, when a current flows through the coil 62a, a magnetic field is generated in the coil 62a, causing the crankshaft 53 to rotate.

  A dog clutch type transmission 64 is incorporated in the internal combustion engine 34. The transmission 64 is housed in the crankcase 36. The transmission 64 includes a main shaft 65 and a counter shaft 66 that have an axis parallel to the axis of the crankshaft 53. The main shaft 65 and the counter shaft 66 are rotatably supported by the crankcase 36 by rolling bearings 67a, 67b, 68a, 68b.

  A plurality of mission gears 71 are supported on the main shaft 65 and the counter shaft 66. The transmission gear 71 is arranged between the bearings 67a and 67b; 68a and 68b and is housed in the crank chamber 47. The transmission gear 71 includes a rotary gear 71a coaxially and rotatably supported by the main shaft 65 or the counter shaft 66, and a fixed gear 71b fixed to the main shaft 65 so as to be relatively non-rotatable and meshed with the corresponding rotary gear 71a. , A shift gear 71c which is supported by the main shaft 65 or the counter shaft 66 such that it cannot rotate relative to the main shaft 65 and is displaceable in the axial direction, and meshes with the corresponding rotary gear 71a. Axial displacements of the rotary gear 71a and the fixed gear 71b are restricted. When the shift gear 71c is coupled to the rotary gear 71a through the axial displacement, the relative rotation between the rotary gear 71a and the main shaft 65 or the counter shaft 66 is restricted. When the shift gear 71c meshes with the fixed gear 71b of the other shaft, the rotational power is transmitted between the main shaft 65 and the counter shaft 66. When the shift gear 71c is coupled to the rotary gear 71a that meshes with the fixed gear 71b of the other shaft, the rotational power is transmitted between the main shaft 65 and the counter shaft 66. In this way, the specific transmission gear 71 meshes between the main shaft 65 and the counter shaft 66, so that the rotational power is transmitted from the main shaft 65 to the counter shaft 66 at a prescribed reduction ratio.

  The main shaft 65 is connected to the crankshaft 53 through a primary reduction mechanism 72 housed between the crankcase 36 and the clutch cover 52 outside the crankcase 36. The primary reduction mechanism 72 includes a power transmission gear 72a and a driven gear 72b that is rotatably supported on the main shaft 65. The power transmission gear 72a is fixed to the other end of the crankshaft 53 protruding outward from the crankcase 36. The driven gear 72b meshes with the power transmission gear 72a.

  The friction clutch 51 housed between the crankcase 36 and the clutch cover 52 is connected to the main shaft 65. The friction clutch 51 includes a clutch outer 51a and a clutch hub 51b. The driven gear 72b of the primary reduction mechanism 72 is connected to the clutch outer 51a. In the friction clutch 51, connection and disconnection are switched between the clutch outer 51a and the clutch hub 51b according to the operation of the clutch lever.

  A drive sprocket 35 a of the transmission 35 arranged outside the crankcase 36 is coupled to the counter shaft 66. A drive chain 35b is wound around the drive sprocket 35a. The drive chain 35b transmits the rotational power of the drive sprocket 35a to the rear wheels WR.

  As shown in FIG. 2, the internal combustion engine 34 is connected to an intake device 73 that supplies an air-fuel mixture toward the internal combustion engine 34 and an exhaust device 74 that exhausts exhaust gas from the internal combustion engine 34 toward the rear of the vehicle. To be done. The intake device 73 is connected to the rear wall of the cylinder head 38, and a throttle body 75 that adjusts the flow rate of air flowing to the intake passage of the cylinder head 38 by the action of a throttle valve, and a main frame 23 behind the main frame 23. And an air cleaner 77 that is connected to the throttle body 75 by a connecting tube 76 and purifies the outside air supplied to the internal combustion engine 34. A fuel injection device 78 that injects fuel toward the intake passage of the cylinder head 38 is inserted into the throttle body 75. The exhaust device 74 is connected to the front wall of the cylinder head 38, has a catalyst 79 for purifying the exhaust gas in the descending region, and has an exhaust pipe 81 that extends rearward through the lower portion of the internal combustion engine 34 and a rear portion of the exhaust pipe 81. A silencer (not shown) that is connected to the end, has a sound deadening function for the internal combustion engine 34, and emits exhaust gas to the atmosphere behind the axle 33.

  As shown in FIG. 4, the air cleaner 77 includes a first body 84a that defines the clean room 83 on the ACG starter 48 side between the air cleaner 77 and a cleaner element 82 that extends along a plane orthogonal to the rotation axis Rx of the crankshaft 53. A cleaner case 84 that is divided into a second body 84b that defines a dirty room 85 on the friction clutch 51 side between the cleaner element 82 and the cleaner element 82. The connecting tube 76, which is inserted into the clean room 83 from the front, is fixed to the first body 84a. A suction tube 86, which is inserted into the dirty room 85 from the rear side, is fixed to the second body 84b. The outside air is taken into the dirty room 85 from the suction tube 86, purified by the cleaner element 82, and flows into the clean room 83. The purified outside air is supplied to the throttle body 75 from the clean room 83 via the connecting tube 76.

An electronic control unit (ECU) 87 that controls the operation of the electrical components is fixed to the outer surface of the first body 84a on the one side in the vehicle width direction . The ACG starter 48 is arranged on one side surface in the left-right direction of the same vehicle as the electronic control unit 87. A battery 88 that is connected to the ACG starter 48 and stores the electric power generated by the ACG starter 48 is disposed in front of the second body 84b. The battery 88 is arranged on the opposite side of the ECU 87 with the air cleaner 77 interposed therebetween. As shown in FIG. 1, the side cover 19 guides traveling wind toward the outer surface of the air cleaner 77, that is, the ECU 87.

As shown in FIG. 5, the ACG starter 48 and the ECU 87 are arranged in front and behind with the main frame 23 interposed therebetween. The ECU 87 is electrically connected to the ACG starter 48 by a harness 89 and electrically connected to the battery 88 by a harness 91. The sensor signal of the rotation sensor is supplied to the ECU 87 via the harness 89. The harness 91 supplies electric power from the battery 88 to the ECU 87. The ACG starter 48 is electrically connected to the battery 88 by a harness 92. The electric power generated by the ACG starter 48 is supplied to the battery 88 via the harness 92 . The harness 89 extends from the ECU 87 and is connected to the ACG starter 48 via the mating surfaces of the crankcase 36 and the side cover 19 .

  The ECU 87 includes a first coupler 93a and a second coupler 93b directed to the ACG starter 48. The coupler 94 of the harness 91 is coupled to the first coupler 93a. The harness 91 extends upward from the first coupler 93a in a direction orthogonal to the first coupler 93a. The coupler 95 of the harness 89 and the coupler 97 of the harness 96 are coupled to the second coupler 93b. The harness 89 extends toward the ACG starter 48. The harness 96 is guided by a guide member 98 fixed to the rear frame 26 and extends rearward along the rear frame 26. The guide member 98 has a suspension shape and supports the harness 96 from below. The rear frame 26 extends below the ECU 87 and supports the seat frame 25 from below at the rear end.

  As shown in FIG. 6, a support plate 99 that supports the ECU 87 is fixed to the outer surface of the air cleaner 77. The support plate 99 is screwed to the air cleaner 77 with a fixing piece 99b that spreads outward from the outer edge of the plate body 99a. A cover 101 covering the ECU 87 is coupled to the support plate 99. The cover 101 is screwed by a support plate 99 to a connecting piece 99c that extends outward from the outer edge of the plate body 99a. The support plate 99 integrally includes a support piece 99d that extends toward the ACG starter 48 more than the second coupler 93b and supports the ring member 102 that guides the harness 89. On the outer surface of the cover 101, cooling fins exposed to traveling wind guided by the side cover 19 are integrally formed.

  As shown in FIG. 7, the ECU 87 includes a first virtual plane PP1 including a mating surface of the crankcase 36 and the starter cover 49 orthogonal to the axis of the crankshaft 53 (rotational axis Rx), and a first virtual plane PP1. And a second imaginary plane PP2 that is parallel to the starter cover 49 and contacts the starter cover 49 from the outside. The harness 89 extending from the ACG starter 48 to the ECU 87 is arranged inside the second virtual plane PP2.

  As shown in FIG. 5, the fuel injection device 78 is connected to the fuel pump 105 that is connected to the fuel tank 15 by the feed pipe 103 and the return pipe 104 and supplies fuel to the internal combustion engine 34. The fuel pump 105 is connected to the fuel injection device 78 by a fuel pipe 106, and discharges fuel toward the fuel injection device 78 at an arbitrary pressure. The fuel pump 105 is electrically connected to the ECU 87 by a harness 107. A control signal is supplied to the fuel pump 105 from the ECU 87 via the harness 107.

  Next, the operation of the motorcycle 11 according to this embodiment will be described. In the intake stroke of the internal combustion engine 34, the outside air is sucked from the intake device 73. The outside air is purified by the air cleaner 77 and flows from the throttle body 75 into the intake passage of the cylinder head 38. The air-fuel mixture is introduced into the combustion chamber 44. In the combustion chamber 44, the air-fuel mixture burns through the compression stroke, and the exhaust gas after combustion is exhausted from the combustion chamber 44. The crankshaft 53 rotates about the rotation axis Rx according to the linear reciprocating motion of the piston 42.

  The rotation of the crankshaft 53 causes the rotation of the rotor 63 in the ACG starter 48. The magnet 63a of the rotor 63 is displaced relative to the coil 62a of the stator 62. As a result, the ACG starter 48 produces electric power. The generated electric power is sent from the harness 92 to the battery 88. The battery 88 stores electricity.

  When the internal combustion engine 34 is started, the ECU 87 detects the rotational angle position of the rotor 63. The ECU 87 supplies power from the battery 88 to the ACG starter 48 according to the detected rotation angle position. A magnetic force is generated in the coil 62a of the stator 62 according to the flow of the electric current, and relative rotation is caused between the stator 62 and the rotor 63. In this way, the crankshaft 53 rotates. The linear reciprocating motion of the piston 42 is started. The combustion operation is performed at the timing controlled by the ECU 87. To detect the rotational angle position, the sensor signal of the rotation sensor is supplied from the harness 89 to the ECU 87. In this way, the ECU 87 controls the operation of the ACG starter 48.

In this embodiment, the air cleaner 77 is connected to the main frame 23 behind the main frame 23. An ECU 87 that controls the operation of the ACG starter 48 is fixed to the outer surface of the air cleaner 77 on one side in the vehicle width direction . Although the arrangement space of the air cleaner 77 is restricted by the main frame 23, the ECU 87 is fixed to the outer surface of the air cleaner 77. Therefore, the arrangement space of the ECU 87 is not restricted by the main frame 23, and even if the ECU 87 becomes large, the ECU 87 Can be reliably placed on the main frame 23.

In the motorcycle 11 according to the present embodiment, the ACG starter 48 is arranged on the same lateral side surface of the vehicle as the ECU 87. The distance between the ACG starter 48 and the ECU 87 is shortened, and as a result, the harness 89 connecting the ACG starter 48 and the ECU 87 is shortened. In addition, since the ACG starter 48 and the ECU 87 are arranged front and back with the main frame 23 interposed therebetween, the distance between the ACG starter 48 and the ECU 87 is further shortened, and as a result, the harness 89 connecting the ACG starter 48 and the ECU 87 is shortened. To be done.

  The ECU 87 is orthogonal to the axis (rotational axis Rx) of the crankshaft 53 and includes a first virtual plane PP1 including the mating surfaces of the crankcase 36 and the starter cover 49, and a starter cover 49 parallel to the first virtual plane PP1. Is arranged between the second virtual plane PP2 and the second virtual plane PP2. Since the ACG starter 48 and the ECU 87 are compactly arranged in the axial direction of the crankshaft 53, the harness 89 can be shortened. At this time, since the harness 89 extending from the ACG starter 48 to the ECU 87 is arranged inside the second virtual plane PP2, the harness 89 is compactly arranged along the side surface of the vehicle.

  The ECU 87 according to the present embodiment includes a first coupler 93a and a second coupler 93b directed to the ACG starter 48. Since the second coupler 93b that receives the harness 89 is arranged at a position directed to the ACG starter 48, the ECU 87 and the ACG starter 48 can be connected in the shortest distance, and the harness 89 can be shortened.

  In the present embodiment, the battery 88 is connected to the ACG starter 48 and is arranged on the opposite side of the ECU 87 with the air cleaner 77 interposed therebetween. Since the ECU 87 and the battery 88 are arranged on the left and right with the air cleaner 77 interposed therebetween, a good weight balance is realized.

  In the motorcycle 11 according to the present embodiment, the side cover 19 continuously guides the traveling wind toward the outer surface of the air cleaner 77 from the tank cover 18 that covers the fuel tank 15 supported by the main frame 23. In this way, since the traveling wind is guided toward the ECU 87, the ECU 87 is effectively cooled.

  In the present embodiment, the fuel pump 105 of the motorcycle 11 is arranged in a space sandwiched between the air cleaner 77 and the ACG starter 48, is connected to the fuel tank 15, and supplies fuel to the internal combustion engine 34. In this way, the fuel pump 105 is arranged close to the ECU 87, so that the harness 107 connecting the fuel pump 105 and the ECU 87 is shortened.

  In the motorcycle 11 according to the present embodiment, the guide member 98 that guides the harness 96 extending from the ECU 87 is fixed to the rear frame 26. Since the direction of the harness 96 is guided by the guide member 98, interference between the harness 96 and other components is avoided.

  11 ... Saddle-type vehicle (motorcycle), 14 ... Head pipe, 15 ... Fuel tank, 18 ... Tank cover, 19 ... Side cover, 23 ... Main frame, 24 ... Down frame, 25 ... Seat frame, 26 ... Rear frame , 32 ... Swing arms, 33 ... (rear wheel) axles, 34 ... Internal combustion engine, 36 ... Crankcase, 48 ... Alternator (ACG) starter, 49 ... Starter cover, 53 ... Crankshaft, 77 ... Air cleaner, 87 ... Electronic control unit (ECU), 88 ... Battery, 93b ... Coupler (second coupler), 96 ... Harness, 98 ... Guide member, 105 ... Fuel pump, PP1 ... First virtual plane, PP2 ... Second virtual plane.

Claims (9)

A main frame (23) that extends downward from the head pipe (14) and swingably supports a swing arm (32) that supports an axle (33) at a rear end;
A down frame (24) extending downward from the head pipe (14) below the main frame (23);
The crankshaft (53), which is supported by the main frame (23) and the down frame (24) and is parallel to the axle (33), generates electric power according to the rotation of the crankshaft (53) during traveling. An internal combustion engine (34) having an alternator starter (48) that drives the crankshaft (53) in response to the supply of current at start-up;
A saddle-ride type vehicle including an air cleaner (77) that is connected to the main frame (23) behind the main frame (23) and purifies outside air supplied to the internal combustion engine (34),
An electronic control unit (87) fixed to the outer surface of the air cleaner (77) on one side in the vehicle width direction to control the operation of the alternator starter (48).
A saddle-ride type vehicle comprising: The saddle-ride type vehicle according to claim 1, wherein the alternator starter (48) is disposed on one lateral side of the same vehicle as the electronic control unit (87) in the left-right direction.   The saddle-ride type vehicle according to claim 1 or 2, wherein the alternator starter (48) and the electronic control unit (87) are arranged in front of and behind the main frame (23). Saddle-type vehicle.   The saddle-ride type vehicle according to any one of claims 1 to 3, wherein the AC is coupled to a crankcase (36) supporting the crankshaft (53) and is connected to the crankcase (36). The electronic control unit (87) further includes a starter cover (49) for accommodating a generator starter (48), the crankcase (36) and the starter cover being orthogonal to an axis of the crankshaft (53). Between a first virtual plane (PP1) including the mating surface of (49) and a second virtual plane (PP2) parallel to the first virtual plane (PP1) and contacting the starter cover (49) from the outside. A saddle-ride type vehicle characterized in that it is arranged in the.   The saddle-ride type vehicle according to claim 4, wherein a harness (91) extending from the alternator starter (48) to the electronic control unit (87) is arranged inside the second virtual plane (PP2). A saddle-type vehicle characterized by the above.   The saddle-ride type vehicle according to any one of claims 1 to 5, which is connected to the alternator starter (48) and is opposite to the electronic control unit (87) with the air cleaner (77) interposed therebetween. A saddle-ride type vehicle further comprising a battery (88) disposed on the side.   The saddle-ride type vehicle according to any one of claims 1 to 6, wherein the air cleaner (77) is continuous from a tank cover (18) that covers a fuel tank (15) supported by the main frame (23). ) The saddle-ride type vehicle further comprising a side cover (19) for guiding a traveling wind toward the outer surface of the vehicle.   The saddle-ride type vehicle according to claim 7, wherein the internal combustion engine (34) is arranged in a space sandwiched between the air cleaner (77) and the alternator starter (48) and is connected to the fuel tank (15). ), And a fuel pump (105) for supplying fuel to the saddle-ride type vehicle. The saddle-ride type vehicle according to any one of claims 1 to 8,
A rear frame (26) extending below the electronic control unit (87) and supporting a seat frame (25) from below at its rear end;
A saddle-ride type vehicle further comprising: a guide member (98) fixed to the rear frame (26) and guiding a harness (96) extending from the electronic control unit (87).