| 摘要 |
PURPOSE:To prevent vehicle behavior from becoming unstable due to multiplier effect of lack of slip restraint of wheels in a traction control device and reversed-phase steering of rear wheels against front wheels. CONSTITUTION:An AWS microcomputer 65 detects vehicle travel conditions by receiving detected signals normally from a front wheel steering angle sensor 61, a vehicle speed sensor 62, and a yaw rate sensor 63, and steers and control rear wheels RW1 and RW2 in phase and in reversed phase against front wheels FW1 and FW2, in accordance with the detected vehicle travel conditions. On the other hand, a TRC microcomputer 70 normally performs tractive action which restrains wheels slip, but if this tractive action is not selected by a driver, or not preformed due to malfunction, or causes a large allowable wheel slip rate due to tractive action the AWS microcomputer 65 prohibits the above mentioned reversed-phase steering of the rear wheels RM1 and RW2. |
