| 摘要 |
PURPOSE:To make it possible to adjust the floor height to the height approximate to an aimed value by stopping the output after actnating a drivesystem for a calculated time necessary for each of suspension mechanisms at the time when the difference between a detected value of the floor height and the aimed value exceeds an allowable range restraining an influence of external disturbance at the time of stopping the floor height adjustment output. CONSTITUTION:When the average floor height detection value during a time T exceeds the allowable range of an aimed value while a vehicle is running, for even one of respective suspension mechanism main bodies 10 an output time T necessary to get rid of the floor height difference in the main bodies 10 is calculated and a drive system 52 corresponding to the suspension mechanism main bodies 10 is actuated only for the time T. Namely, when the floor height is too large, a solenoid valve 56 for lowering is opened to extract a part of oil from the main bodies 10, and when the floor height is too small, a solenoid valve 55 for raising is opened to supply oil to the main bodies 10. Consequently, when the specifit output time T passes, the output to the drive system 52 is stopped to maintain the floor height. Accordingly, even if the influence of external disturbance is added during the adjustment of the floor height, it is possible to return the floor height to the floor height aimed value in the same way in the case of no external disturbance after getting rid of the external disturbance. |
