TRACTION CONTROLLER OF VEHICLE

摘要

PURPOSE:To suppress an engine stall condition at the time of driving on a road in a bad condition and rapidly recover the condition by judging whether the driving road condition is bad or not, and making engine gain in throttle control small in comparison with the case of a normal road at the closing side when the road is in the bad condition. CONSTITUTION:Left and right front wheels 1FL, 1FR are driven wheels and left and right rear wheels 1RL, 1RR are driving wheels in a vehicle A. Generated torque of an engine 2 is transferred via an automatic transmission 3, a propeller shaft 4, a deferential gear 5, and the left and right rear wheels 1RL, 1RR. At a control unit UTR for traction control, brake control by controlling valves 32, 34, 36A, 36B, 37A, 37B at the time of slip control and throttle control by controlling an actuator 44 for adjusting throttle opening are performed. In this case, at the time of bad condition of the road, a throttle valve 43 is closed slower than the time of he normal condition of the road so as to relax decrease in driving torque by the throttle valve 43.