METHOD AND DEVICE FOR CONTROLLING THE OPERATION OF AN ENGINE FOR A VEHICLE

摘要

An engine control method and device for a vehicle in which jerk in the body of a vehicle developing upon acceleration or deceleration thereof can be always made substantially constant so as to improve riding comfort. Also, pitching or surging of the vehicle body during acceleration or deceleration thereof is substantially alleviated or suppressed even when the operator abruptly operates an accelerator pedal, thereby further improving riding comfort. To this end, a target degree of opening of a throttle valve is first set based on at least one of the sensed amount of accelerator pedal operation, the sensed engine load condition and the sensed number of revolutions per minute of the engine. The throttle valve operatively associated with the accelerator pedal is controlled in such a manner that, when the accelerator pedal is operated by the operator, the throttle valve is operated to move to the target degree of opening in synchronization with the intake stroke of the engine as sensed.