| 摘要 |
PURPOSE:To prevent an acceleration shock from occurring, by controlling an air control valve in a little suction air amount range and a throttle valve in a major and medium suction air amount sphere respectively, in a device provided with bypass piping having an air control valve in a manner of detouring around the throttle valve of a suction duct. CONSTITUTION:An accelerator/throttle sensor 26 detecting the opening of a throttle valve 22 is provided, whose output is taken into an electronic control circuit 56, in a device wherein bypass air piping 38 detouring around the throttle valve 22 is provided in a suction air duct 18 having the throttle valve 22 opening and closing by interlocking with an accelerator pedal 20 and the piping 38 is provided with an air control valve 42. Then, the throttle valve 22 is turned into a closed state in a little suction air amount range whose opening of the accelerator is less than a given value and a suction air amount is controlled by controlling the opening of the air control valve 42. The throttle valve 22 is so constituted that it is controlled in an opening and closing state by interlocking it with the accelerator pedal 20, in a major and medium suction air amount range whose opening of the accelerator is more than a given value. |
