| 摘要 |
PURPOSE:To make the improvement of the yaw rate characteristic of a vehicle compatible with the improvement of the rising characteristic of lateral G in the auxiliary steering of front wheels so as to dissolve the discomfort of a driver and to reduce the fluctuation of steering force, thus securing the steering linearity of the driver. CONSTITUTION:In order to perform the auxiliary steering of front wheels 1 through an actuator 5, a steering wheel steering angle theta, vehicle speed V and stroke L are inputted into a controller 16 respectively from sensors 17, 18, 19. The controller 16 executes a specified control program to perform the auxiliary steering of the front wheels, but in the case of the positive-negative polarity of the primary differential term and secondary differential term of theta being different at this time, secondary differential term is made 0. |
