JP5030282B2 - Motorcycle - Google Patents

Description

  The present invention relates to a motorcycle, and more particularly, to a motorcycle capable of performing a detaching operation of a main stand using a driving force of a power source.

  Conventionally, various motorcycles using an internal combustion engine, a motor, or the like as a drive source are known. With respect to the control of the drive source of such a motorcycle, various attempts have been made to use it more comfortably.

In Patent Literature 1, a forward push-walk control mode and a reverse push-walk control mode are prepared as control modes of a drive motor as a drive source, and the forward push-walk control mode and the reverse push-walk control mode are provided with a rotational speed limited as compared with the normal control mode for normal travel. An electric two-wheeled vehicle is disclosed in which the handling burden of the vehicle is reduced by arbitrary selection.
JP 2006-51853 A

  On the other hand, the main stand of a motorcycle that separates the front wheels or rear wheels from the road surface so that the vehicle body is self-supporting in an upright state requires a greater force for the detaching operation as the vehicle weight increases. In particular, an electric motorcycle equipped with a large battery, a drive motor or the like tends to be heavy, and there is a possibility that the burden of the detaching operation becomes large. Therefore, it is conceivable to provide an actuator for the stand, but this increases the weight.

  An object of the present invention is to solve the above-described problems of the prior art, and in particular, to provide a motorcycle capable of performing a main stand detaching operation using a driving force of a power source.

  In order to achieve the above object, the present invention provides a motorcycle comprising a main stand rotatably attached to a lower portion of a vehicle body within a predetermined range, and a power source for providing a driving force. Has a first characteristic in that it is turned upright by the driving force of the power source.

  In addition, a rear wheel is provided as a driving wheel driven by the driving force, and the main stand is turned upright when the rear wheel is turned by the driving force of the power source. There are two features.

  Further, the motorcycle includes a main stand that is pivotally attached to a lower portion of the vehicle body within a predetermined range, and a power source that applies driving force to the driving wheels. The main stand is a grounding that contacts the road surface. Third, the main stand is rotated from the state in which the grounding unit is grounded to the road surface by driving the rear wheel in the backward direction by the driving force of the power source to be in the standing state. There are features.

  The main stand is disposed on the front side of the vehicle body from the center of gravity of the vehicle body, and the rear wheels are driven in the reverse direction by the driving force of the power source from a state in which the grounding portion is in contact with the road surface. The fourth feature is that the vehicle body is made to stand up in a state where the vehicle body is turned up by the rotation and the load of the front wheels is removed.

  In addition, the main stand is disposed on the rear side of the vehicle body from the center of gravity of the vehicle body, and the rear wheels are driven in the reverse direction by the driving force of the power source from the state where the grounding portion is grounded on the road surface. There is a fifth feature in that the vehicle body is made to stand up in a state where the vehicle body is made to stand up and the load on the rear wheel is removed.

  And swing arm driving means for swinging a swing arm pivotally supporting the rear wheel at an arbitrary angle. The swing arm driving means is configured to switch the main stand from the retracted state to the standing state. A sixth feature is that the swing arm is swung in a direction in which the wheel is pressed against the road surface, and the swing arm is swung so that the load of the rear wheel is released when the vehicle body is self-supporting.

  A seventh feature is that the power source is a motor.

  In addition, at least the main stand is set in an upright state with respect to an operation mode of a control unit that controls driving of the driving wheel, a main stand position sensor that detects a rotation position of the main stand, and a motor that drives the driving wheel. An operation mode selection means for selecting from a stand hanging mode for the main stand and a stand removal mode for putting the main stand in a retracted state, and an operation switch provided on a gripping member for supporting a vehicle body when the main stand is operated. The controller is configured to select a predetermined operation mode by the operation mode selection means, detect that the main stand is at a predetermined position by the main stand position sensor, and operate the operation switch. In that the motor is configured to start rotating. There is a feature.

  Further, the ninth feature is that the main stand is rotated and the standing state is released by rotating the driving wheel in a direction in which the vehicle body is advanced.

  Furthermore, there is a tenth feature in that the transmission of the driving force to the driving wheel is stopped when the standing state is released.

  According to the first feature, the main stand is rotated by the driving force of the power source to be in an upright state, so that the main stand can be hung using the driving force, greatly increasing the operating burden on the occupant. It becomes possible to reduce it.

  According to the second feature, the rear wheel is provided as a driving wheel driven by the driving force, and the main stand is rotated and turned up by the rear wheel being rotated by the driving force of the power source. The automatic stand can be obtained with a simple configuration without providing a special mechanism on the main stand side.

  According to the third feature, the main stand includes a grounding portion that contacts the road surface, and the main stand drives the rear wheels in the reverse direction by the driving force of the power source from the state where the grounding portion is grounded to the road surface. Therefore, an automatic stand that uses the driving force of the drive wheels and does not require a means for directly driving the main stand can be obtained.

  According to the fourth feature, the main stand is disposed on the front side of the vehicle body from the center of gravity of the vehicle body, and the rear wheel is driven in the reverse direction by the driving force of the power source from the state where the grounding portion is grounded on the road surface. The main stand is attached to the main body of a motorcycle that uses the rear wheel as a driving wheel. It is possible to hang the main stand by using the driving force of the driving wheel only by changing. In addition, an automatic stand can be obtained in which the front wheels can be separated from the road surface, and the vehicle body can be made to stand up in a state where the load on the front wheels is removed even when the front wheels are grounded.

  According to the fifth feature, the main stand is disposed on the rear side of the vehicle body from the center of gravity of the vehicle body, and the rear wheel is driven in the reverse direction by the driving force of the power source from the state where the grounding portion is grounded on the road surface Since the vehicle body is configured to stand up in a state where the rear wheel is released and the rear wheel is unloaded, the motorcycle using the rear wheel as a driving wheel is similar to the center stand of a normal motorcycle. In addition, it is possible to obtain an automatic stand that can separate the rear wheel from the road surface or can stand the vehicle body in a state where the load on the rear wheel is removed even when the rear wheel is grounded.

  According to the sixth feature, the swing arm driving means for swinging the swing arm pivotally supporting the rear wheel at an arbitrary angle is provided, and the swing arm driving means is configured to switch the main stand from the retracted state to the standing state. The swing arm is swung in the direction of pressing the rear wheel against the road surface, and the swing arm is swung so that the load of the rear wheel is removed when the vehicle body is self-supporting. Even if the vehicle is mounted, the main stand can be hung by the driving force of the rear wheels, the rear wheels can be separated from the road surface, and even if the vehicle is grounded, the load can be removed from the rear wheels. It becomes possible to be independent.

  According to the seventh feature, since the power source is a motor, a main stand hanging operation can be performed using the motor of the power source in the electric motorcycle using the power source for traveling as the motor. . Further, fine driving force control is facilitated, and the rotation operation of the main stand can be executed more appropriately.

  According to the eighth feature, the control unit detects that the predetermined operation mode is selected by the operation mode selection means, the main stand position sensor detects that the main stand is at the predetermined position, and the operation switch is operated. Therefore, if the specified conditions are not met, the stand detachment operation will not be started. The operation can be prevented.

  According to the ninth feature, the driving wheel is rotated in the direction in which the vehicle body moves forward, so that the main stand rotates and the standing state is released, so the driving force of the driving wheel is used. Thus, the main stand can be removed, and the operation burden on the occupant can be reduced.

  According to the tenth feature, since the transmission of the driving force to the drive wheels is stopped when the standing state is released, the vehicle body moves forward by the driving force when the standing state is released. There is no end.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of an electric motorcycle as a motorcycle according to an embodiment of the present invention. The electric motorcycle 1 includes a cell stack in which a plurality of cells are stacked, a fuel (hydrogen) gas supply system that supplies hydrogen gas as fuel to the cell stack, and a reaction gas (air) that contains oxygen to the cell stack. A fuel cell vehicle including a fuel cell power generation system configured with a reactive gas supply system that travels by driving a drive motor with power generated by the fuel cell and power supplied from a secondary battery that stores the power .

  A head pipe 3 is coupled to the front of the main frame 2 of the electric motorcycle 1, and a steering stem (not shown) that supports a pair of left and right front forks 4 is pivotally supported on the head pipe 3. Has been. A front wheel WF is rotatably supported at a lower end portion of the front fork 4, and the front wheel WF can be steered by a handle 50 connected to the steering stem. A pivot shaft 11 that is a swing shaft of a swing arm 12 suspended from a rear shock 13 is provided at the rear end portion of the main frame 2, and a rear wheel as a drive wheel is provided inside the swing arm 12. A drive motor 14 for rotating the WR is housed.

  In a space surrounded by the main frame 2 and the underframe 5 below the vehicle body, a scroll compressor 15 as a supercharger for forcibly feeding the reaction gas, a humidifier 16 for adjusting the humidity of the reaction gas, A fuel cell 10 having a rectangular parallelepiped shape, a voltage converter 17 that converts the generated voltage of the fuel cell 10 into a predetermined voltage by stepping up or down, and a secondary battery (battery) that stores electric power supplied from the fuel cell 10 20 are arranged. A pair of left and right radiators 18 for cooling the cooling water of the fuel cell 10 are attached to the front side of the main frame 2 on the vehicle body. Note that the front side of the electric motorcycle 1 is covered with a cowling 7 as an exterior part.

  A bracket 19 that pivotally supports the main stand 30 is fixed to the underframe 5 in front of and below the vehicle body. The main stand 30 is attached to the front side of the center of gravity G of the vehicle body of the electric motorcycle 1, and the vehicle body is made independent by separating the front wheel WF from the road surface GR by changing the stowed state from the retracted state to the illustrated state. It is configured. Usually, the main stand of a motorcycle is switched to an upright state by applying a force in the direction of lifting the vehicle body with an arm while an occupant steps on the foot and rotates, so that a heavier vehicle body requires a larger operating force. However, in the electric motorcycle 1 according to the present embodiment, the main stand 30 can be switched to the standing state using the driving force of the driving wheels, so that the operation burden on the occupant can be greatly reduced.

  A seat frame 6 that supports the hydrogen cylinder 9 is connected to the rear side of the vehicle body of the main frame 2, and the seat frame 6 includes a grip member that a passenger holds to support the vehicle body when the main stand 30 is operated. An integrally formed stand grip switch 60 is attached. The seat 8 disposed at the upper portion of the hydrogen cylinder 9 incorporates a seat seating sensor 70 for detecting the seating state of the occupant. Further, below the handle 50, the operation mode of the drive motor 14 is set. A jog switch 40 is attached as operation mode selection means for switching.

  FIG. 2 is a block diagram showing a configuration of devices used when operating the main stand. The same reference numerals as those described above denote the same or equivalent parts. The control unit 90 of the electric motorcycle 1 according to this embodiment is used when the main stand 30 is switched from the stowed state to the standing state (at the time of the stand hanging operation) and when the main stand 30 is switched from the standing state to the stowed state (at the time of removing the stand). The drive motors 14 of the wheels WR can be driven in a predetermined operation mode. The control unit 90 is rotatably attached to the stand grip switch 60, the seat seating sensor 70, the handle grip sensor 53 for detecting whether or not the left grip of the handle 50 is being gripped, and the right grip of the handle 50. A throttle opening sensor 45 that detects the opening of the throttle grip, a main stand position sensor 34 that detects the rotational position of the main stand 30, a jog switch 40 having changeover switches 41, 42, and 43, and an ignition that switches on / off of the main power supply An output signal from the switch 91 is input. Then, the control unit 90 transmits a drive signal to the PWM control unit 92 based on information from the various sensors and various switches described above.

  FIG. 3 is a front view of the jog switch 40. In the present embodiment, the changeover switches 41, 42, and 43 are set to “push walking mode”, “stand hanging mode”, and “stand removal mode”, respectively. The switching operation of each operation mode is set so that it can be executed only when the occupant gets out of the vehicle, the electric motorcycle is stopped, and the ignition switch 91 is on.

  FIG. 4 is an enlarged view of the main stand 30. The main stand 30 has a configuration in which a stand bar 31 is rotatably attached to a bracket 19 fixed to the underframe 5 within a predetermined rotation range. When the main stand 30 is switched to the standing state, the stand bar 31 is rotated in the clockwise direction as shown in the figure so that the end of the step portion 32 is stepped down, but the stand bar 31 is rotated counterclockwise. Since an urging means (not shown) such as a spring that applies an urging force to be moved is attached, the retracted state is maintained unless the occupant operates it. In the present embodiment, it is assumed that the occupant gets off to the left side of the vehicle body and operates the main stand. However, the occupant may be able to operate while standing on the right side of the vehicle body.

  The rotation position of the stand bar 31 with respect to the bracket 19 is detected by a main stand position sensor 34 including a rotary switch attached to the rotation shaft. In this embodiment, it is possible to detect three positions: a storage position, an intermediate position, and a standing position, and the intermediate position is set to a rotation angle at which the grounding portion 33 contacts the road surface. The stand bar 31 is composed of a pair of rod-shaped members that rotate integrally in the vehicle width direction, and in a standing state, two grounding portions 33 in the vehicle width direction make contact with the road surface, thereby allowing the vehicle body to stand upright in an upright state. Make it possible. The ground contact portion 33 is formed of a hard rubber having a plurality of protrusions so that the frictional force with the road surface is increased. The shape of the stand bar 31 and the material and shape of the grounding portion 33 can be variously modified. For example, the grounding portion 33 may be formed of a metal member having a plurality of spikes.

  FIG. 5 is a top view of the seat seating sensor 70. The thin sheet seating sensor has a configuration in which a sensor body 84 composed of eight contacts 82 and wirings is covered with a sensor cover 80 formed of a resin such as rubber. On the surface of the sensor cover 80, a convex portion 81 is formed at a position corresponding to the contact 82 to increase the sensor sensitivity by concentrating the seating load. As the contact 82, a membrane switch or the like that comes into contact with each other when the load exceeding a predetermined value is applied can be used. In the seat seating sensor 70 according to the present embodiment, if eight contacts 82 are connected in parallel and any one of them is turned on, the switch is turned on, and the output signal is sent to the control via the connector 83. It is configured to be sent to the unit 90. In addition, by arranging the contacts 82 in two rows in the longitudinal direction of the vehicle body, even when the seating position varies in the longitudinal direction depending on the physique and the riding posture of the occupant, accurate seating detection is possible.

  FIG. 6 is an enlarged view of the stand grip switch 60. The stand grip switch 60 is formed integrally with a gripping member (stand grip) that applies a force in the direction of lifting the vehicle body with the right hand 100 when an occupant stands on the left side of the vehicle body and operates the main stand 30. The stand grip switch 60 is provided with a lower switch 61 that is turned on when pressed upward and an upper switch 62 that is turned on when pressed downward. As a result, when only the lower switch 61 is on, a force in the direction of lifting the vehicle body is applied by the occupant. On the other hand, when both switches 61 and 62 are turned on, the vehicle body is supported. It is possible to determine that the entire gripping member is strongly gripped.

  FIG. 7A is a front view of the left grip of the handle 50, and FIG. The left grip of the handle 50 is configured such that a handle bar 51 made of a metal pipe material or the like is covered with a handle grip 52 formed of rubber or the like, and whether or not an occupant holds the left grip between the two. A handlebar grip sensor 53 for detecting the above is incorporated. The sensor 53 is an on / off switch type load sensor using a pressure conductive rubber whose electrical resistance value decreases when pressure is applied as a switch element. A flat pressure conductive rubber 56 is connected to the flat wire electrode 55. It is formed into a cord shape by sandwiching it and covering it with silicon rubber 57. The handle grip sensor 53 is disposed so that one side surface thereof is in contact with the handle bar 51 and is engaged with a groove formed in an inner peripheral portion of the handle grip 52, and a sensor signal is transmitted to one end of the control signal. Wiring 54 for transmitting to 90 is connected.

  8 and 9 are explanatory diagrams showing a procedure of a main stand hanging operation (hereinafter referred to as a stand hanging operation) for switching the main stand 30 from the retracted state to the standing state. FIG. 10 is a flowchart showing the procedure of the stand hanging operation, and each process is executed by the control unit 90. As shown in FIGS. 8 and 9, the electric motorcycle 1 according to the present embodiment (1) steps down the step 32 until the grounding portion 33 of the main stand 30 contacts the road surface (see FIG. 8), (2 ) The rear wheel WR is rotated in the direction in which the vehicle body moves backward while the grounding portion 33 is in contact with the ground (see FIG. 9). (3) The main stand 30 rotates and stands up while the vehicle body moves backward (see FIG. 9). The stand-up operation is completed by the three operations of entering the state (see FIG. 1). Hereinafter, the procedure of the stand hanging operation will be described with reference to the flowchart of FIG. Note that this stand-hanging operation is set so that it can be executed only when the occupant is in a stopped state where the vehicle gets off the vehicle body and the ignition switch 91 is on.

  First, in step S1, when the changeover switch 42 of the jog switch 40 is operated while the vehicle is stopped and the operation mode of the drive motor 14 is switched to the “stand-on mode”, the process proceeds to step S2. In step S <b> 2, it is determined whether or not the seat seating sensor 70 is in an off state, that is, whether or not the occupant is getting off the seat 8. If an affirmative determination is made in step S2, the process proceeds to step S3, and it is determined whether or not the handlebar grip sensor 53 is in an on state, that is, whether or not the occupant is holding the vehicle body by gripping the left grip of the handlebar 50. If an affirmative determination is made in step S3, the process proceeds to step S4, in which the main stand 30 is at the intermediate position and the lower switch 61 of the stand grip switch 60 is turned on, that is, the occupant performs a predetermined stand hanging operation. It is determined whether it has been executed. If an affirmative determination is made in step S4, the process proceeds to step S5 to start reverse rotation of the drive motor 14. If a negative determination is made in steps S2 to S4, the process returns to the determination in step S2, assuming that the main stand hanging operation is not ready.

  When the reverse rotation of the drive motor 14 is started in step S5, the main stand 30 starts rotating while the grounding portion 33 is pressed against the road surface. Since the main stand 30 is attached to the front side of the center of gravity G of the vehicle body, the frictional force between the rear wheel WR and the road surface even if the front wheel WF starts to move away from the road surface as the main stand 30 rotates. (Grip strength) does not decrease. In addition, as the weight of the vehicle body increases, the ground contact portion 33 of the main stand 30 increases the contact pressure with the road surface and becomes more difficult to slip. As a result, if the reverse rotation of the drive motor 14 is continued, the main stand 30 is rotated as the vehicle body moves backward. The rotation speed of the drive motor 14 can be set so as to change according to the rotation angle of the main stand 30 or the like.

  In step S6, it is determined whether or not the upper switch 62 of the stand grip switch 60 has been pressed. If the determination is affirmative, the process proceeds to step S10 and the drive motor 14 is stopped. As described above, the upper switch 62 is arranged so as to be turned on when the entire gripping member is firmly gripped. Thereby, for example, when the vehicle body becomes unstable and the gripping member is gripped, the drive motor 14 can be stopped immediately. The upper switch 62 may be arbitrarily operated when the stand-hanging operation is performed again, for example, due to a large unevenness on the road surface. Further, the determination condition in step S6 can include turning on the seat seating sensor 70, turning off the handlebar grip sensor 53, and turning off the lower switch 61 of the stand grip switch 60. These items can be set as determination conditions either alone or in combination, and the drive motor 14 is stopped even when the seat is seated on the seat 8 or the hand supporting the vehicle body is released during the reverse rotation of the drive motor 14. be able to. If a negative determination is made in step S6, the process proceeds to step S7.

  In step S7, it is determined whether or not the main stand 30 has reached the standing position. If an affirmative determination is made, the process proceeds to step S8 and the drive motor 14 is stopped. In the subsequent step S9, the main stand 30 is held in the upright position by a lock means (not shown) that is attached to the rotation shaft of the main stand 30 and includes a lock pin and a solenoid that controls driving of the lock pin. finish. In the standing state of the main stand, the front wheel WF may be in a state where it is in contact with the road surface as long as the load is removed to such an extent that the vehicle body can stand on its own by the main stand.

  The various determinations in the flowchart can be variously modified. For example, the condition that the drive motor starts to be driven includes that the output of an inclination sensor (not shown) attached to the vehicle body is a predetermined value or less. But you can. In step S7, if the main stand 30 does not reach the standing position even when the rear wheel WR rotates by a predetermined amount or more, a slip occurs between the grounding portion 33 and the road surface, and the main stand 30 is raised. The drive motor 14 may be stopped because it is in a state that cannot be performed. Furthermore, a sensor for detecting the steering angle of the handle 50 may be provided, and the driving motor 14 may be set to be prohibited from rotating when the steering angle is equal to or greater than a predetermined value.

  FIG. 11 is a flowchart showing a procedure of a main stand removing operation (hereinafter, stand removing operation) for switching the main stand 30 from the standing state to the retracted state. The stand removal operation is completed by two operations: (1) rotating the rear wheel WR in the direction in which the vehicle body is advanced, and (2) removing the main stand 30 while the vehicle body is moving forward. Note that the stand removal operation is also set to be executable only when the occupant is in a stopped state where the passenger gets off the vehicle body and the ignition switch 91 is on.

  In step S11, when the changeover switch 43 of the jog switch 40 is operated and the operation mode of the drive motor 14 is switched to the “stand removal mode”, the locked state by the locking means is released in step S12. In step S13, it is determined whether or not the seat seating sensor 70 is in an off state. If an affirmative determination is made, the process proceeds to step S14. In step S14, it is determined whether or not the handlebar grip sensor 53 is in an on state. If an affirmative determination is made, the process proceeds to step S15.

  In step S15, it is determined whether or not the lower switch 61 of the stand grip switch 60 is turned on, that is, whether or not the occupant has performed a predetermined stand removal operation. If the determination is affirmative, the process proceeds to step S16. Then, the forward rotation of the drive motor 14 is started. In step S15, the forward rotation of the drive motor 14 may be started by detecting the output signal of the throttle opening sensor 45. In the electric motorcycle 1 according to the present embodiment, the output of the drive motor with respect to the rotation amount of the throttle grip is smaller than that during normal traveling by operating the changeover switch 41 of the jog switch 40 and selecting the “push walking mode”. Thus, the pushing-walking operation can be easily performed. The rotational speed of the drive motor 14 during the stand removal operation may be adjusted by the throttle as in the “push walking mode”.

  Returning to the flowchart, in step S17, it is determined whether or not the upper switch 62 of the stand grip switch 60 has been pressed. If a negative determination is made, the process proceeds to step S18. Note that the determination conditions in step S17 may include turning on the seat seating sensor 70, turning off the handlebar grip sensor 53, and turning off the lower switch 61 of the stand grip switch 60. These items can be set alone or in combination as determination conditions, and the drive motor 14 is stopped even when the seat is seated on the seat 8 or the hand supporting the vehicle body is released during the forward rotation of the drive motor 14. Can do. In step S18, it is determined whether or not the main stand 30 has reached the storage position. If an affirmative determination is made, the process proceeds to step S19, where the drive motor 14 is stopped, and the series of controls is terminated. By stopping the drive motor 14 in step S19, the vehicle body is prevented from moving forward by the drive force of the drive motor 14 at the moment when the standing state of the main stand is released.

  If an affirmative determination is made in step S17, the drive motor 14 is stopped as an emergency stop is required. In such a case, the operation can be continued by operating the jog switch 40 again. . Further, it may be configured to detect that the main stand 30 has reached the storage position and to drive the lock means to hold the storage state. Further, in the present embodiment, the rotation of the drive motor 14 is prohibited when the occupant is seated, but the output of the drive motor that travels the vehicle body is sufficiently large. You may set so that stand removal operation | movement can be performed.

  12-15 is explanatory drawing which shows the procedure of the main stand hanging operation | movement in the electric motorcycle 1a which concerns on 2nd Embodiment of this invention. In the electric motorcycle 1a, a main stand 30a having the same configuration as the main stand 30 is attached to the rear side of the center of gravity position G of the vehicle body. Then, an air suspension using an air spring is applied to the rear shock 13 that supports the swing arm 12, and the length of the rear shock 13 is changed by a compressor (not shown) controlled by the control unit 90 to swing the swing arm 12. Swing arm driving means capable of changing the angle is provided. With the above configuration, the electric motorcycle 1a can switch the main stand 30a to the upright state by the rotational driving force of the rear wheel WR, and can separate the rear wheel WR from the road surface when the main stand 30a is independent.

  Also in the stand-hanging operation of the electric motorcycle 1a, (1) The procedure for grounding the grounding portion 33 of the main stand 30a is the same, but in a normal rear shock, if the main stand 30a is to be rotated, the rear wheel WR is moved from the road surface. Since the separation is attempted, the frictional force (grip force) between the rear wheel WR and the road surface disappears, and the vehicle body cannot be moved any further. Therefore, in the electric motorcycle 1a according to the present embodiment, as shown in FIG. 14, (2) the rear shock WR is extended against the road surface by extending the rear shock 13 and swinging the swing arm 12 in the illustrated clockwise direction. (3) By rotating the rear wheel WR while securing a grip force with the road surface, (4) the main stand 30a can be rotated as the vehicle body moves backward.

  Then, (5) when it is detected that the main stand 30a has reached the standing position (see FIG. 15), (6) the rear shock 13 is contracted to separate the rear wheel WR from the road surface (see FIG. 16). Complete the stand hanging operation. In the standing state of the main stand 30a, the rear wheel WR may be in a state of being grounded to the road surface as long as the load is removed to such an extent that the vehicle body does not move even when the drive motor is driven.

  In addition, a sensor (not shown) for detecting the contact pressure between the rear wheel WR and the road surface is provided, and the drive motor 14 and the rear shock 13 are based on information from the sensor so that an appropriate contact pressure can be obtained when the stand is hung. May be controlled simultaneously. If the outer cylinder of the rear shock 13 is formed of a colorless transparent or colored transparent member, the inside of the rear shock 13 can be visually observed when the vehicle is stopped, and it is possible to easily detect the presence or absence of a defect.

  The means for pressing or separating the rear wheel WR against the road surface may be, for example, means for moving the axle of the rear wheel WR up and down with respect to the swing arm 12 instead of swinging the swing arm 12. Further, the conditions shown in the first embodiment can be applied as the conditions for starting the drive of the drive motor.

  As described above, since the electric motorcycle according to the first and second embodiments can perform the main stand detaching operation using the driving force of the driving motor of the rear wheel, the operation burden on the occupant is greatly increased. It becomes possible to reduce. In addition, since a means for directly driving the main stand is not required, an automatic stand can be obtained with a simple configuration without providing a special mechanism on the main stand side.

  In an electric motorcycle that can drive the front wheels, the main stand may be attached to the rear of the center of gravity of the vehicle body, and the front wheels may be driven to perform the main stand hanging operation. In addition, even when the main stand is attached in front of the center of gravity of the vehicle body, a mechanism that can arbitrarily change the length of the front fork can be provided so that the front stand can be driven and the main stand can be applied.

  The material and shape of the main stand, the configuration of the jog switch, the handle grip sensor, the seat seating sensor, the stand grip switch, etc., the drive start conditions of the drive motor, etc. are not limited to the above-described embodiment, and various changes can be made. For example, the electric motorcycle may be a vehicle that uses only a secondary battery as a power supply source to the drive motor.

  The power source for rotating the main stand can be obtained by an internal combustion engine. Further, in a motorcycle running with an internal combustion engine, a small motor for obtaining an auxiliary driving force when an occupant pushes the vehicle body may be used as a power source for the main stand.

  FIG. 16 is a side view of a motorcycle 120 according to the third embodiment of the present invention. FIG. 17 is a partially enlarged view of FIG. The motorcycle 120 employs a well-known chain drive system that transmits the driving force of the engine 101 as a power source to the rear wheel WR by a combination of a chain and a sprocket. The driving force of the engine 101 drives the drive sprocket 103 to rotate through a speed change mechanism housed in the mission case 102. The rotational driving force of the drive sprocket 103 is driven by the driven sprocket attached to the rear wheel WR by meshing the tooth row 104 formed on the outer periphery thereof with the groove on the inner peripheral side of the drive chain 105 made of a plurality of metal rings. 106.

  The main stand 150 according to this embodiment is attached to a stand erecting mechanism 160 that raises the stand by the rotational driving force of the drive sprocket 103. The stand erecting mechanism 160 includes a sprocket 161 in which a groove on the outer peripheral side of the drive chain 105 and a tooth row 162 formed on the outer periphery of the stand drive sprocket 161 are engaged with each other, and a rotating shaft 151 of the sprocket 161 and the main stand 150. It is comprised from the connection / disconnection mechanism 163 which connects / disconnects a driving force between. The connecting / disconnecting mechanism 163 formed of a hydraulic clutch, an electromagnetic clutch, or the like is in a disconnected state during traveling or the like, and the main stand 150 is urged counterclockwise by an elastic member or the like to be stored in FIG. Held in position.

  The connecting / disconnecting mechanism 163 can be switched to a connected state by operating a stand hanging switch 111 attached to the steering handle 110 under predetermined conditions such as when the vehicle is stopped and the brake is operated. Then, the connection / disconnection mechanism 163 is switched to the connected state, and when the drive sprocket 103 is rotated counterclockwise by the driving force of the engine 101, the main stand 150 is rotated clockwise, and this is raised. It can be. The connection / disconnection mechanism 163 can be set to automatically return to the disconnected state upon detecting the end of the stand-hanging operation.

  A connecting / disconnecting mechanism 107 including a hydraulic clutch, an electromagnetic clutch, or the like is also provided between the rear wheel WR and the driven sprocket 106. The connecting / disconnecting mechanism 107 is connected to transmit driving force during traveling or the like, but is switched to the disconnected state in conjunction with the operation of the stand hanging switch 111 during the above-described stand hanging operation. Thus, it has a function of enabling a stable stand hanging operation without moving the vehicle body forward.

  FIG. 18 is a side view of a motorcycle 200 according to a modification of the third embodiment of the present invention. FIG. 19 is a partially enlarged view of FIG. The same reference numerals as those described above denote the same or equivalent parts. This modification is characterized in that a stand drive sprocket 261 for rotationally driving the main stand 250 is engaged with the drive chain 105 only during the stand hanging operation. The main stand 250 is fixed to the rotating shaft 251 of the stand drive sprocket 261, and is held in the storage position by being urged counterclockwise by an elastic member or the like when the vehicle is traveling. The rotary shaft 251 of the stand drive sprocket 261 is supported by an actuator 260 that can move the rotary shaft 251 in the vertical direction in the figure. When the vehicle is traveling, the stand drive sprocket 261 is held at a lower position away from the drive chain 105.

  When the stand switch 111 is operated under a predetermined condition, the actuator 260 moves the rotating shaft 251 of the stand drive sprocket 261 upward in the figure to engage the tooth row 262 with the groove of the drive chain 105. As a result, the main stand 250 can be rotated clockwise as the drive sprocket 103 rotates counterclockwise, and can be switched to the standing state.

  FIG. 20 is a side view of a stand erecting mechanism according to the fourth embodiment of the present invention. The present embodiment is characterized in that the drive sprocket 103 and the rotation shaft 301 of the main stand 300 are directly connected via the connection / disconnection mechanism 302. The motorcycle (not shown) according to the present embodiment includes a speed change mechanism that can rotate the drive sprocket 103 in the reverse direction of the vehicle. The connecting / disconnecting mechanism 302 including a hydraulic clutch, an electromagnetic clutch, and the like is in a disconnected state when the vehicle is running, and the main stand 300 is urged counterclockwise by an elastic member or the like to be shown in the storage position. Is held in. When the stand hanging switch is operated under a predetermined condition, the connecting / disconnecting mechanism 302 is switched to the connected state, and in this state, the drive sprocket 103 is rotated clockwise to move the main stand 300 clockwise. It can be turned to an upright state. In this embodiment, since the main stand 300 is rotated clockwise and the rear wheel WR is rotated backward, the stand-hanging operation can be performed more smoothly.

  In the third and fourth embodiments described above, the shape and mounting position of the main stand, the support structure of the stand driving sprocket, the structure of the connection / disconnection mechanism, the method of transmitting the driving force from the drive sprocket to the stand driving sprocket, etc. Various modifications are possible. For example, the drive sprocket may have two rows of teeth, and a dedicated chain that always meshes with the stand drive sprocket may be provided separately from the drive chain. The power source of the motorcycle may be an electric motor.

1 is a side view of an electric motorcycle according to an embodiment of the present invention. It is a block diagram which shows the structure of the equipment used at the time of operation of a main stand. It is a front view of the jog switch which concerns on one Embodiment of this invention. It is an enlarged view of the main stand which concerns on one Embodiment of this invention. It is a top view of the seat seating sensor which concerns on one Embodiment of this invention. It is a front view of the cell built in the fuel cell concerning one embodiment of the present invention. It is the front view (a) of the left side grip of a handle, and its AA line sectional view (b). It is explanatory drawing which shows the procedure of stand hanging operation | movement (stand stand state). It is explanatory drawing which shows the procedure of stand hanging operation | movement (stand grounding state). It is a flowchart which shows the procedure of stand hanging operation | movement. It is a flowchart which shows the procedure of stand removal operation | movement. It is explanatory drawing which shows the procedure of the stand hanging operation | movement of the electric motorcycle which concerns on 2nd Embodiment of this invention (stand stowed state). It is explanatory drawing which shows the procedure of the stand hanging operation | movement of the electric motorcycle which concerns on 2nd Embodiment of this invention (stand grounding state). It is explanatory drawing which shows the procedure of the stand hanging operation | movement of the electric motorcycle which concerns on 2nd Embodiment of this invention (rear-wheel rotation state). It is explanatory drawing which shows the procedure of the stand hanging operation | movement of the electric motorcycle which concerns on 2nd Embodiment of this invention (stand standing state). FIG. 6 is a side view of a motorcycle according to a third embodiment of the present invention. FIG. 17 is a partially enlarged view of FIG. 16. FIG. 9 is a side view of a motorcycle according to a modification of the third embodiment of the present invention. FIG. 19 is a partially enlarged view of FIG. 18. It is a side view of the stand raising mechanism concerning a 4th embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electric motorcycle (motorcycle), 12 ... Swing arm, 13 ... Rear shock (swing arm swing means), 14 ... Drive motor (power source), 20 ... Secondary battery, 30 ... Main stand, 33 ... Grounding part 34 ... Main stand position sensor, 40 ... Jog switch (operation mode selection means), 53 ... Handle grip sensor, 60 ... Stand grip switch (operation switch), G ... Center of gravity position, WR ... Rear wheel (drive wheel)

Claims (7)

A main stand (30) attached to the lower part of the vehicle body so as to be rotatable within a predetermined range;
A motorcycle having a power source (14) for applying a driving force to the drive wheels (WR) ,
The main stand (30) includes a grounding part (33) for grounding to the road surface,
The main stand (30), said ground portion (33) from a state of being contact with the road surface, the wheel (WR) after the said drive wheel (WR) by the driving force of the power source (14) in the reverse direction Ri Do the standing state is rotated by to be driven,
A control unit (90) for driving and controlling the drive wheel (WR);
A main stand position sensor (34) for detecting a rotation position of the main stand (33);
The operation modes of the motor for driving the drive wheels (WR) are at least a stand hanging mode for bringing the main stand (30) into an upright state and a stand removing mode for putting the main stand (30) into a retracted state. An operation mode selection means for selecting from:
An operation switch (60) provided on a gripping member for supporting the vehicle body when operating the main stand (30),
The control unit (90) detects that a predetermined operation mode is selected by the operation mode selection means, and that the main stand (30) is in a predetermined position by the main stand position sensor (34), and A motorcycle configured to start rotation of the motor (14) when the operation switch (60) is operated . The main stand (30) is disposed on the front side of the vehicle body from the center of gravity (G) of the vehicle body,
From the state in which the grounding part (33) is grounded to the road surface, the rear wheel (WR) is driven in the backward direction by the driving force of the power source (14) to be turned upright and the front wheel (WF). 2. The motorcycle according to claim 1 , wherein the motorcycle is configured to be self-supporting in a state in which the load is removed. The main stand (30) is disposed on the rear side of the vehicle body from the center of gravity (G) of the vehicle body,
From the state in which the grounding part (33) is grounded to the road surface, the rear wheel (WR) is driven in the backward direction by the driving force of the power source (14) to be turned upright, and the rear wheel ( 2. The motorcycle according to claim 1 , wherein the motorcycle is configured to be self-supporting in a state where a load of WR is removed. Swing arm drive means (13) for swinging a swing arm (12) pivotally supporting the rear wheel (WR) at an arbitrary angle;
The swing arm driving means (13) swings the swing arm (12) in a direction to press the rear wheel (WR) against the road surface when the main stand (30) is switched from the retracted state to the standing state. wherein at the time of vehicle body self-supporting motorcycle according to claim 1, characterized in that swinging the swing arm (12) as the load is withdrawn in the rear wheel (WR). The motorcycle according to any one of claims 1 to 4, wherein the power source (14) is a motor. The main stand (30) is rotated by rotating the driving wheel (WR) in a direction in which the vehicle body is advanced, and the standing state is released. The motorcycle according to any one of 1 to 5 . The motorcycle according to claim 6 , wherein transmission of driving force to the driving wheel (WR) is stopped when the standing state is released.

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