| 摘要 |
<p>PURPOSE:To prevent excessive control to braking force when slip tendency of a partial drive wheel only is high by determining the degree of slip tendency for even driving wheel based on the determining value set as higher than car body speed and lower than target wheel speed and by increasing the target wheel speed as the number of driving wheels determined as higher slip tendency is decreased. CONSTITUTION:In the method for controlling vehicular traction, the excessive slip state of a driving wheel is determined by using target wheel speed, BRBL, VRBH for controlling braking force established by including a predetermined slip rate in car body speed VR as one the determining conditions to determine whether driving wheel speed exceeds or not. Braking force for the driving wheel is controlled corresponding to the determined result. The degree of slip tendency for a plurality of driving wheels respectively is determined based on the determined values VRS1, VRS2 set as high than the car body speed VR and lower than the target wheel speed VRBL, VRBH for controlling braking force. Control is made to increase the target wheel speed VRBH for controlling braking force as the number of driving wheels determined as higher slip tendency is decreased.</p> |
