| 摘要 |
<p>An electric control apparatus (30) for a four-wheel steering system of an automotive vehicle having a front wheel steering mechanism (10) for a set of dirigible front road wheels (FW1,FW2) and a rear wheel steering mechanism (20) for a set of dirigible rear road wheels (RW1,RW2), which includes a yaw rate sensor (31) arranged to detect an actual yaw rate of the vehicle for producing a detection signal indicative of the actual yaw rate, and a microcomputer (33) programmed to determine a target steering angle of the rear road wheels (RW1,RW2) in proportion to a high-frequency component of the actual yaw rate for producing a control signal indicative of the target steering angle and to apply the control signal to an electrically operated actuator (21) of the rear wheel steering mechanism (20) so that the rear road wheels (RW1,RW2) are steered at the target steering angle. <IMAGE></p> |
