| 摘要 |
PURPOSE:To promote the compatibility of both the earlier focusing of a driving wheel slip and the prevention of an excessive fall-in of driving power, by obtaining a target throttle opening value by an accelerator control amount and a control characteristic map in accordance with a slip rate. CONSTITUTION:A driving power control device A controls a throttle valve 22, not mechanically connected with an accelerator pedal 20, to be opened and closed in accordance with a control of the accelerator pedal 20. In a throttle valve control circuit 34, if a slip rate between a tire and a road surface, calculated by a wheel speed obtained from a rear wheel speed sensor 30 and a car body speed obtained from front wheel speed sensors 31, 32, increases to a preset value or more, the throttle valve 22 is controlled to its fully closed direction. Further the throttle valve 22, when it is fully closed, is released from the full closing in a region where rear wheels 16, 17 are placed in a deceleration condition further with the slip rate exceeding the preset value. Accordingly, the control device A earlier starts a control of full closing, if a driving wheel slip begins to high increase, while earlier performs the release of the full closing if the slip begins to focus. |
