| 摘要 |
PURPOSE:To prevent drop of engine power due to over closing of a throttle valve and also to increase the engine power smoothly for easily getting out of a stuck state by decreasing both of opening and closing speed of the throttle valve in the case of a stuck state. CONSTITUTION:In a suction passage 41 of an engine, there are arranged a main throttle valve 43 connected to an accelerator pedal 42, and in addition, a sub-throttle valve 45 connected to an actuator 44 for adjusting opening of the throttle valve. A control unit UTR for traction control in the case of slip control performs brake control, in which plural valves 32, 34, 36A, 36B, 37A, 37B are controlled, and throttle control, in which the actuator 44 for adjusting throttle opening is controlled. In this case, the control unit UTR judges whether the vehicle is in a stuck state or not. If it is in the stuck state, engine gain in the throttle control is decreased in both of the closing and opening sides compared with an ordinary state. |
