| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve safety of an electric vehicle by appropriately controlling a motor generator even when coordinated control of a brake control device and the motor generator is difficult. <P>SOLUTION: When a diagnosis result of an ABS control system is normal, a determination is made as to whether to execute ABS control based on a slip ratio of a vehicle wheel, and motor torque control is executed based on an operational state of an ABS. In other words, a motor generator is controlled to be in a regenerative state when the ABS control is not executed, while the motor generator is controlled to be in a power running state when the ABS control is executed. On the other hand, when the diagnosis result of the ABS control system is abnormal, regenerative braking by the motor generator is prohibited immediately and the motor generator is controlled to be in the power running state. Since the motor generator is controlled to prevent lock of the vehicle wheel when the ABS control system is abnormal, the vehicle behavior can be stabilized and the safety can be improved. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
