JPH01172906U

JPH01172906U -

Info

Publication number: JPH01172906U
Application number: JP6842788U
Authority: JP
Priority date: 1988-05-24
Filing date: 1988-05-24
Publication date: 1989-12-07

Description

[Brief explanation of drawings]

第１図は本考案一実施例の液圧サスペンシヨン
装置を示す全体図、第２図は実施例装置の作動を
示すタイムチヤートである。１……アクチユエータ、３……圧力制御弁、４
……出力回路、５……コントローラ（制御手段）
、６……液圧供給回路、７……ドレーン回路、４
３……圧力センサ、６０……エンジン、ｃｉ……
制御信号、ｏｉ……開弁信号、ｓｉ……閉弁信号
。 FIG. 1 is an overall view showing a hydraulic suspension device according to an embodiment of the present invention, and FIG. 2 is a time chart showing the operation of the embodiment device. 1... Actuator, 3... Pressure control valve, 4
...Output circuit, 5...Controller (control means)
, 6...hydraulic pressure supply circuit, 7...drain circuit, 4
3...pressure sensor, 60...engine, ci...
Control signal, oi...valve opening signal, si...valve closing signal.

Claims

[Scope of Claim for Utility Model Registration] An actuator for adjusting the vehicle height that is disposed between the vehicle body side member and the axle side member and is operated by hydraulic pressure to change the vehicle height, and an actuator that is connected to the actuator via an output circuit. , a pressure control valve that is actuated by a control signal to control the output pressure to the output circuit; and a pressure control valve disposed in the output circuit that opens in response to a valve open signal to communicate with the output circuit, and closes in response to a valve close signal. a cut valve that cuts off the output circuit when the actuator is pressed; a pressure sensor that is provided to detect the hydraulic pressure in the actuator and outputs a detection signal; a controller that outputs a control signal to the pressure control valve and also outputs a valve opening signal and a valve closing signal to the cut valve;
The controller outputs a valve closing signal to the cut valve to maintain the state of the actuator when the engine is stopped, and when the engine is started, the output hydraulic pressure of the pressure control valve and the actuator hydraulic pressure detected by the pressure sensor are the same pressure. This hydraulic suspension device is characterized by outputting a valve opening signal to the cut valve after the temperature is reached.