| 摘要 |
PURPOSE:To automatically change the control parameters to values suitable for the road surface condition by obtaining the control parameters to control the posture of a cab at the specified time intervals, and obtaining the control force to suppress the displacement in the respective modes according to these control parameters. CONSTITUTION:The height of a vehicle frame 25 is detected by a vehicle height sensor 31, and the height of a cab is detected by another vehicle height sensor 28 respectively, and the change in the respective heights is calculated by a relative displacement calculating means 35. A control parameters changing command judging means changes the control parameters when required. In addition, a control parameters calculating means 34 obtains the displacement in each mode of the cab from the change in the height of the cab relative to the road surface, and the control parameters are obtained from the area ratio of each frequency range. Each hydraulic actuator 19 is controlled through a fluid quantity control valve 16 according to the control parameters. The control parameters are obtained at the specified time intervals, and the control force to suppress the displacement in each mode according to these control parameters. |
