JPH0181103U - - Google Patents
Info
- Publication number
- JPH0181103U JPH0181103U JP1987175252U JP17525287U JPH0181103U JP H0181103 U JPH0181103 U JP H0181103U JP 1987175252 U JP1987175252 U JP 1987175252U JP 17525287 U JP17525287 U JP 17525287U JP H0181103 U JPH0181103 U JP H0181103U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- pressure
- control
- vehicle height
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案第１実施例の車高調整装置を示
す全体図、第２図は実施例装置の制御回路の作動
の流れを示すフローチヤート、第３図は実施例装
置の各部の作動を示すタイミングチヤートである
。
１…ポンプ、２…エンジン、４ｂ…（メインの
）アキユムレータ、５…液圧供給回路、６…圧力
制御弁、７…第１チエツクバルブ、８…ドレーン
回路、９…出力回路、１０…制御回路、１１…車
高調整アクチユエータ、１３…第２チエツクバル
ブ、１４…圧力センサ、１５…イグニツシヨンス
イツチ（エンジンセンサ）。
Fig. 1 is an overall diagram showing the vehicle height adjustment device according to the first embodiment of the present invention, Fig. 2 is a flowchart showing the operation flow of the control circuit of the embodiment device, and Fig. 3 is the operation of each part of the embodiment device. This is a timing chart showing the following. 1... Pump, 2... Engine, 4b... (main) accumulator, 5... Hydraulic pressure supply circuit, 6... Pressure control valve, 7... First check valve, 8... Drain circuit, 9... Output circuit, 10... Control circuit , 11...Vehicle height adjustment actuator, 13...Second check valve, 14...Pressure sensor, 15...Ignition switch (engine sensor).
Claims (1)
時溜めておくアキユムレータと、 該アキユムレータとポンプ間に設けられた第１
チエツクバルブと、 該アキユムレータに液圧供給回路を介して接続
されると共に、ドレン回路側へも接続され、出力
液圧を制御する圧力制御弁と、 該圧力制御弁の出力液圧で駆動され、車高及び
姿勢を制御可能な車高調整アクチユエータと、 前記ドレン回路に設けられ、ポンプ側の液圧を
パイロツト圧とする第２チエツクバルブと、 前記車高調節アクチユエータの液圧を検知する
圧力センサと、 エンジン始動時を検出するエンジンセンサと、 該エンジンセンサによりエンジン始動時が検出
されたときの圧力センサの検出液圧に圧力制御弁
の出力液圧を一定時間一致させるように制御する
と共に、一定時間の経過後は、圧力制御弁の出力
液圧を標準車高が得られる標準液圧に時間の経過
と共に徐々に一致させるべく時間の関数として制
御するキーオン時制御を行い、このキーオン制御
終了後は、通常作動制御を行う制御回路と、 を備えていることを特徴とする車高調整装置。[Scope of Claim for Utility Model Registration] An accumulator that temporarily stores hydraulic pressure supplied from an engine-driven pump;
a check valve; a pressure control valve connected to the accumulator via a hydraulic pressure supply circuit and also connected to the drain circuit side to control output hydraulic pressure; and driven by the output hydraulic pressure of the pressure control valve; a vehicle height adjustment actuator capable of controlling vehicle height and attitude; a second check valve provided in the drain circuit and using hydraulic pressure on the pump side as pilot pressure; and a pressure sensor that detects hydraulic pressure of the vehicle height adjustment actuator. an engine sensor that detects when the engine starts; and controlling the output hydraulic pressure of the pressure control valve to match the detected hydraulic pressure of the pressure sensor for a certain period of time when the engine sensor detects that the engine starts; After a certain period of time has elapsed, key-on control is performed to control the output hydraulic pressure of the pressure control valve as a function of time so that it gradually matches the standard hydraulic pressure that provides the standard vehicle height over time, and this key-on control ends. A control circuit for controlling normal operation; and a vehicle height adjustment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17525287U JPH0710888Y2 (en) | 1987-11-17 | 1987-11-17 | Vehicle height adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17525287U JPH0710888Y2 (en) | 1987-11-17 | 1987-11-17 | Vehicle height adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0181103U true JPH0181103U (en) | 1989-05-31 |
| JPH0710888Y2 JPH0710888Y2 (en) | 1995-03-15 |
Family
ID=31467058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17525287U Expired - Lifetime JPH0710888Y2 (en) | 1987-11-17 | 1987-11-17 | Vehicle height adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710888Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02155818A (en) * | 1988-12-05 | 1990-06-14 | Toyota Motor Corp | Car height adjusting device |
| JPH06127246A (en) * | 1992-10-22 | 1994-05-10 | Mitsubishi Automob Eng Co Ltd | Electronically controlled air suspension controller |
-
1987
- 1987-11-17 JP JP17525287U patent/JPH0710888Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02155818A (en) * | 1988-12-05 | 1990-06-14 | Toyota Motor Corp | Car height adjusting device |
| JPH06127246A (en) * | 1992-10-22 | 1994-05-10 | Mitsubishi Automob Eng Co Ltd | Electronically controlled air suspension controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710888Y2 (en) | 1995-03-15 |
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