| 摘要 |
PURPOSE:To prevent the sharp variation of ground clearance due to the flow of oil after the ground clearance is adjusted, by carrying out the ground clearance adjustment for preventing the change of attitude of a car body due to rolling after the lapse of a certain time after selecting the spring constant of a hydraulic cylinder installed onto each wheel. CONSTITUTION:A controller 30 estimates the rolling state of a car body by a lateral acceleration speed estimating means 33 and a calculating means 14 on the basis of each detection signal supplied from a steering angle sensor 31 and a car speed sensor 32. A logic calculating means 35 sets an aimed oil feed/discharge quantity on the basis of the estimation, and a CPU 37 controls each oil feed/discharge means 7a-7d for the hydraulic cylinder for each wheel according to the above-described setting. In this case, the controller 30 is equipped with a time delay setting means 36. When the ground clearance is adjusted in the rolling state, control is performed so that the operation of each oil feed/discharge means 7a-7d is carried out after the lapse of a certain time after the operation of each spring constant selecting means 5a-5d for the hydraulic cylinder for each wheel. |
