| 摘要 |
PURPOSE:To electrically carry out the operation responsiveness of front and rear wheels by providing an electric motor which is electronically controlled by the input signals of a front wheel steering angle sensor, a steering angular velocity sensor, a vehicle speed sensor, etc., and a rear wheel steering device which is driven by this motor. CONSTITUTION:A steering-angle/angular-velocity sensor 102 in response to a steering angle and a vehicle speed sensor 113 in response to vehicle speed are provided on a steering handle 120. A rear wheel steering device 121 which is driven by an electric motor 109 is connected to rear wheels 106 via a tie rod 107 and steering arms 108. The electric motor 109 is controlled by an electronic control device 111 in accordance with a vehicle speed and the steering angle and angular velocity of front wheels. The speed reduction of the electric motor 109 is carried out by means of a reducing gear 122 and its driving force is transmitted to a rear wheel driving device. |
