| 摘要 |
PURPOSE:To control steering and the limiting thereof by running a simple program with a normal micro computer when abnormality has been detected in either of a first or a second micro computer for controlling an actuator for steering rear wheels and a steering limiting device. CONSTITUTION:In the device wherein an actuator 2b steers rear wheels via a relay rod 2a and the displacement of the relay rod 2a is limited with a steering limiting device 2c for restricting rear wheel steering, a speed sensor 3a and front and rear wheel steering angle sensors 3b and 3c are provided. Also, a condition detecting switch 3 is fitted for detecting the operating condition of the steering limiting device 2c. According to output from said detecting means 3a to 3d, the actuator 2b and the steering limiting device 2c are controlled via micro computers 4a and 4b. The micro computers 4a and 4b have a built-in abnormality detecting means 4a and 5a and when any abnormality has been detected therein, steering and the limiting thereof are controlled with a simple program executed in a normal micro computer 4a or 4b. |
