| 摘要 |
PURPOSE:To maintain the steering characteristic of a car always to a prescrib state by correcting the supplementary steering amount so that the actual stability factor of a car accords to an aimed value, when the steering performance is controlled by supplementarily steering a front or rear wheel. CONSTITUTION:The figure shows the case where front wheels are supplementarily steered. In control, each of car speed V and a lateral acceleration G or yaw- rate phi is measured, and the steering angle of a steering wheel is measured, and the steering angle theta is obtained by dividing the above-described steering angle by a steering gear ratio N. Then, each value is input into a calculation circuit, and the measured value Ks of stability factor is obtained. Then, said measured value Ks is input into a comparison circuit, and the subtraction calculation is performed for the aimed value Ks' of the stability factor corresponding to the characteristic of the car. A gain setting constant is multiplied by the result of the subtraction calculation, and the suppliementary steering amount is determined according to the absolute value of the result, and the direction of supplementary steering is determined according to the positive or negative of the value. |
