JPH0282609U

JPH0282609U -

Info

Publication number: JPH0282609U
Application number: JP16267188U
Authority: JP
Priority date: 1988-12-15
Filing date: 1988-12-15
Publication date: 1990-06-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例としての車高調整式
サスペンシヨンの制御装置の要部の回路図、第２
図は同上制御装置の装着される油圧回路、第３図
は第２図中の電磁弁の断面図、第４図は駆動電流
とアクチユエータ圧としての油圧の特性線図、第
５図は従来装置の制御手段の回路図である。１……アクチユエータ、２……電磁弁、４……
制御手段、３８……増幅回路、３９……コントロ
ール回路、４１……車高制御信号算出回路、４２
……開閉器、４３……故障検出回路、５……車高
センサ、４２１，４２４……前左車輪（Ｆ・Ｌ）
の車高センサに接続される接点、４２２，４２３
……前右車輪（Ｆ・Ｒ）の車高センサに接続され
る接点。 Figure 1 is a circuit diagram of the main parts of a control device for a vehicle height adjustable suspension as an embodiment of the present invention;
The figure shows the hydraulic circuit in which the above control device is installed, Fig. 3 is a sectional view of the solenoid valve in Fig. 2, Fig. 4 is a characteristic diagram of hydraulic pressure as drive current and actuator pressure, and Fig. 5 is a conventional device. FIG. 3 is a circuit diagram of the control means of FIG. 1... Actuator, 2... Solenoid valve, 4...
Control means, 38...Amplification circuit, 39...Control circuit, 41...Vehicle height control signal calculation circuit, 42
... Switch, 43 ... Failure detection circuit, 5 ... Vehicle height sensor, 421, 424 ... Front left wheel (F/L)
Contacts connected to the vehicle height sensor, 422, 423
...Contact connected to the front right wheel (F/R) vehicle height sensor.

Claims

[Scope of utility model registration request]

A vehicle height adjustment actuator and a vehicle height sensor are respectively provided at each wheel position of the vehicle, and the amount of working fluid supplied and discharged to the vehicle height adjustment actuator is controlled by a solenoid valve, and the control means for each of the solenoid valves is A vehicle height adjustable suspension configured to obtain a vehicle height control signal according to the deviation between a designated target vehicle height signal and an actual vehicle height signal from the vehicle height sensor, and to drive the solenoid valve based on this vehicle height control signal. In the vehicle height sensor control device, each of the vehicle height sensors is provided with a failure detection means for detecting a failure thereof, and when one of the vehicle height sensors fails, the control means outputs an output from the failed vehicle height sensor. A control device for a vehicle height adjustable suspension, characterized in that the control device is configured to obtain a vehicle height control signal based on an actual vehicle height signal from another vehicle height sensor instead of the vehicle height sensor.