Patent ID: 9045016
Filing Date: 2015-06-02
Classification: B60G

Abstract:
1. A hydraulic suspension system comprising: a suspension mechanism for a traveling vehicle body; a suspension reference position variation mechanism for varying a reference position of a suspension stroke of the suspension mechanism; an intermediate value calculator for detecting a maximum position and a minimum position of the suspension stroke and calculating an intermediate value between the maximum and minimum positions; a cumulating unit for cumulating a frequency at which an intermediate position deviates from a target range as a cumulative frequency; a control unit for controlling an operation variation mechanism so that the intermediate position moves in a preset target direction when the cumulative frequency obtained from the cumulating unit exceeds a preset cumulative frequency; a stopped state detector for detecting a state in which operation of the suspension mechanism has stopped; and a control management unit for controlling the suspension reference position variation mechanism so that when an operation of the suspension mechanism is detected to be in a stopped state, the operation of the suspension mechanism moves toward the target range, in preference to control based on the cumulative frequency of the cumulating unit.