Abstract: A controller includes: an automatic shifting control section that carries out automatic shifting control in which a shifting actuator is driven in response to a predetermined automatic shifting command; and an assist control section that, when a predetermined assist condition is met, carries out assist control in which the shifting actuator is driven to assist motion of a manual shifting power transmission mechanism actuated upon operation of a shifting operation member by a driver.

Abstract: An engine power suppressing device includes a controller which controls an operation of a power changing element which changes engine power for driving a vehicle; and an environment sensor which detects an environment parameter indicating an environment in which the vehicle is used, wherein the controller determines whether or not a power suppressing condition in which a vehicle state is a state in which the engine power is to be suppressed, is met, wherein in a case where the controller determines that the power suppressing condition is met, the controller sets a suppressing value for the power changing element to suppress the engine power, and compensates the suppressing value based on the environment parameter detected by the environment sensor.

Abstract: An output control system incorporated in a vehicle including a clutch device which shifts a drive system from a no-load state to a connected state, comprises an upper limit setting section which sets an upper limit value of an output of the drive source while the output control system is performing a starting control; and a state determiner section which determines a state of the drive system while the output control system is performing a starting control, the upper limit setting section sets the upper limit value to a first upper limit value, while the state determiner section is determining that the drive system is in the no-load state, and the upper limit setting section sets the upper limit value to a second upper limit value larger than the first upper limit value, when the state determiner section determines that the connected state of the drive system is initiated.

Abstract: An output control system incorporated in a vehicle including a clutch device comprises an upper limit setting section which sets an upper limit value of an output of the drive source to a starting control upper limit value when the output control system is performing a starting control; and a wheelie determiner section which determines whether or not a wheelie is occurring in the vehicle when the output control system is performing the starting control, wherein when the wheelie determiner section determines that the wheelie is occurring, the output control system performs a wheelie suppressing control for suppressing the output of the drive source while maintaining the starting control in such a manner that the output becomes less when the wheelie determiner section determines that the wheelie is occurring than before the wheelie determiner section determines that the wheelie is occurring.

Abstract: A wheelie determining device comprises a lift-off start determiner section which determines whether or not a lift-off of a front wheel from a ground surface has started, based on a traveling state value indicating a traveling state of a vehicle and an operation value indicating a rider's driving operation.

Abstract: An engine power suppressing device includes a controller which controls an operation of a power changing element which changes engine power for driving a vehicle; and an environment sensor which detects an environment parameter indicating an environment in which the vehicle is used, wherein the controller determines whether or not a power suppressing condition in which a vehicle state is a state in which the engine power is to be suppressed, is met, wherein in a case where the controller determines that the power suppressing condition is met, the controller sets a suppressing value for the power changing element to suppress the engine power, and compensates the suppressing value based on the environment parameter detected by the environment sensor.

Abstract: A wheelie suppressing device comprises a wheelie determiner section which detects a wheelie state; and a wheelie suppressing section which performs a wheelie suppressing control for suppressing an engine output when the wheelie determiner section has detected the wheelie state, wherein the wheelie suppressing control includes a first suppressing control for suppressing the engine output while performing fuel feeding and an ignition operation, and a second suppressing control for suppressing the engine output by performing the fuel feeding or the ignition operation at a reduced rate.

Abstract: An output control system incorporated in a vehicle including a clutch device comprises an upper limit setting section which sets an upper limit value of an output of the drive source to a starting control upper limit value when the output control system is performing a starting control; and a wheelie determiner section which determines whether or not a wheelie is occurring in the vehicle when the output control system is performing the starting control, wherein when the wheelie determiner section determines that the wheelie is occurring, the output control system performs a wheelie suppressing control for suppressing the output of the drive source while maintaining the starting control in such a manner that the output becomes less when the wheelie determiner section determines that the wheelie is occurring than before the wheelie determiner section determines that the wheelie is occurring.

Abstract: A wheelie determining device comprises a wheelie preceding state determiner section which makes a comparison between a vehicle body speed with respect to a ground surface and a circumferential speed of a front wheel to determine whether or not a vehicle is in a wheelie preceding state; and a wheelie amount determiner section which calculates as a wheelie amount which is a lift-off amount of the front wheel with respect to the ground surface, an angular change amount of the vehicle body in a rotational direction in which the front wheel is away from the ground surface, from a time point when the wheelie preceding state determiner section has determined that the vehicle has been in the wheelie preceding state.

Abstract: An output control system incorporated in a vehicle including a clutch device which shifts a drive system from a no-load state to a connected state, comprises an upper limit setting section which sets an upper limit value of an output of the drive source while the output control system is performing a starting control; and a state determiner section which determines a state of the drive system while the output control system is performing a starting control, the upper limit setting section sets the upper limit value to a first upper limit value, while the state determiner section is determining that the drive system is in the no-load state, and the upper limit setting section sets the upper limit value to a second upper limit value larger than the first upper limit value, when the state determiner section determines that the connected state of the drive system is initiated.

Abstract: A wheelie suppressing device comprises a wheelie determiner section which detects a wheelie state; and a wheelie suppressing section which performs a wheelie suppressing control for suppressing an engine output when the wheelie determiner section has detected the wheelie state, wherein the wheelie suppressing control includes a first suppressing control for suppressing the engine output while performing fuel feeding and an ignition operation, and a second suppressing control for suppressing the engine output by performing the fuel feeding or the ignition operation at a reduced rate.