| 摘要 |
The occurrence or non-occurrence of a certain slip of a drive wheel 34a or 34b is detected based on only a motor torque used for driving a vehicle, a brake torque, and a rotation speed of a motor 22 computed from an output of a rotational position detection sensor 23. In response to detection of the occurrence of the certain slip, drive restriction of the motor 22 is activated for slip control. This arrangement enables effective slip control by the simple configuration. The slip control is attainable by multiple different mechanisms, that is, a brake system 40 and the drive restriction of the motor 22. Even in the event of any failure or abnormality arising in the brake system 40 or in the event of prohibiting traction control of the brake system 40 in response to the driver's operation of a TRC off switch 68, the drive restriction of the motor 22 accomplishes the slip control. This arrangement desirably prevents slip-induced unstable driving of the vehicle and damages of devices involved in slip control for the vehicle. |
