| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a four-wheel steering control system capable of turning a vehicle utilizing a turning function of rear wheels, of a four-wheel steering device, in preparation for a case that a power steering device fails. <P>SOLUTION: The four-wheel steering control system includes a torque sensor 10 for detecting a steering torque based on an operation of a steering member 2, a steering angle sensor 4 for detecting a steering angle, a steering assist control unit 31 for obtaining an assist force for turning front wheels based on a detection value of the torque sensor 10, and a turn control unit 41 for controlling the turn of rear wheels based on a detection value of the steering angle sensor 4 or the torque sensor 10. When a failure in the function of the steering assist control unit 31 is determined, the turn control unit 41 executes control for turning the rear wheels only in phase opposite to the turned angle of the steering member 2. <P>COPYRIGHT: (C)2013,JPO&INPIT |
