| 摘要 |
PURPOSE:To improve the operation safety at the time of travelling on a bad road by switching the damping force of shock absorbers to the high damping force during the predetermined time when the relative displacement quantity between the body and the wheels exceeds the reference value, and while setting the predetermined time variable in response to the frequency that the relative displacement quantity exceeds the predetermined value within the reference time. CONSTITUTION:At the time of operating a vehicle, in a control device 42 for inputting the output signal of height sensors 36, 38 and a speed sensor 40, firstly the deviation DELTAHf of the height of the front wheels, that is, the relative displacement quantity between the front wheels and the body is computed. Next, the predetermined time Tf(x) when the damping force of shock absorbers 20, 22 of the front wheels is set to the high damping force is computed by the map stored in the ROM at the time of passing the reference time Tr for controlling. Next, the frequency Nf that the absolute value of the deviation DELTAHf becomes more than the reference value within the reference time Tr is counted, and the predetermined time Tf(x) is set to be long as the frequency increases. The damping force of shock absorbers 24, 26 of the rear wheels is set in the same way. |
