| 摘要 |
An electronically controlled throttle device 1, for vehicle such as a motorcycle, includes a control unit (ECU) 8a, 8b having inputs from an accelerator opening degree sensor 2 indicating an opening degree of a throttle valve 9 and from a brake switch 3 indicating an operation of a brake pedal 12. If the inputs from the accelerator sensor 2 indicates that the degree of opening of the throttle valve 9 has been constant for a predetermined time or longer and the inputs from the brake switch 3 indicates the brake pedal has been operated for a predetermined time or longer the control unit 8a, 8b uses a control mode in which the opening degree of the throttle valve 9 is gradually reduced, via an actuator 13, to a predetermined opening degree according to attenuation characteristics based on a running state of the vehicle, e.g. angular velocity at which the throttle valve rotates. The control unit 8a, 8b may use feedback control on the actuator 13 and the running state of the vehicle may include vehicle speed and gear position. |
