| 摘要 |
<p>PURPOSE:To restrain slip of driving wheels at beginning of traction control by controlling engine output based on a higher wheel speed side of right and left driving wheels, from the beginning point of traction control up to passing of a prescribed time, or up to generation of the driven wheel speed. CONSTITUTION:In a control logic circuit 13, at first traction control begins from a time point t1 when a higher speed side VdH of right and left driving wheels becomes over a threshold value Vs, and the speed VdH is instituted as a wheel speed Vr of the object to be controlled, while a prescribed time T is passed from the traction control beginning time point t1, or while a higher side one of the driven wheel speed VnH (VnH>0) is generated from the time point t1. At the time point t1 when the speed VdH becomes over the threshold value Vs, a command of closing throttle is given, a throttle valve is closed at a prescribed return speed, and the engine output is reduced. When the speed VdH reaches high peak, the throttle closing action is changed over to the open ing action.</p> |
