JPH03118808U - - Google Patents
Info
- Publication number
- JPH03118808U JPH03118808U JP2711290U JP2711290U JPH03118808U JP H03118808 U JPH03118808 U JP H03118808U JP 2711290 U JP2711290 U JP 2711290U JP 2711290 U JP2711290 U JP 2711290U JP H03118808 U JPH03118808 U JP H03118808U
- Authority
- JP
- Japan
- Prior art keywords
- load
- value
- control valve
- hydraulic cylinder
- target stroke
- 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.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Vehicle Body Suspensions (AREA)
Description
第１図は本考案の構成図、第２図は本考案の第
１の実施例の要部の構成図、第３図は全体的な概
略構成図、第４図は制御回路のブロツク図、第５
図は同じく制御動作のフローチヤートである。
１０……車体、１１……車輪、１３……油圧シ
リンダ、１４……油圧源ユニツト、１５……流量
制御弁、１８……コントロールユニツト、２０…
…圧力センサ、２１……ストロークセンサ、２２
……車速センサ。
Fig. 1 is a block diagram of the present invention, Fig. 2 is a block diagram of the main parts of the first embodiment of the present invention, Fig. 3 is an overall schematic block diagram, and Fig. 4 is a block diagram of the control circuit. Fifth
The figure is also a flowchart of the control operation. DESCRIPTION OF SYMBOLS 10...Vehicle body, 11...Wheel, 13...Hydraulic cylinder, 14...Hydraulic power source unit, 15...Flow control valve, 18...Control unit, 20...
...Pressure sensor, 21 ... Stroke sensor, 22
...Vehicle speed sensor.
Claims (1)
油圧シリンダに油圧源からの作動油の給排を制御
する流量制御弁と、油圧シリンダの作用荷重を検
出する手段と、この検出荷重を基準荷重と比較し
て荷重変動分を演算する手段と、この荷重変動分
に応じて目標ストローク値を演算する手段と、目
標ストローク値に対応して流量制御弁の制御信号
を出力する手段と、油圧シリンダのストローク量
を検出する手段と、検出したストローク量が目標
ストローク値と一致するように前記流量制御弁の
制御信号を補正する手段とを備えた車両用サスペ
ンシヨンシステムにおいて、車速にもとづいて車
両の停止状態を判別する手段と、前記荷重変動分
が所定の設定値よりも大きいかどうかを比較する
手段と、車両が停止状態でかつ荷重変動分が設定
値以下のときに前記目標ストローク値を所定値に
固定する手段と備えたことを特徴とする車両用サ
スペンシヨンシステム。 a hydraulic cylinder that supports the wheels relative to the vehicle body;
a flow control valve for controlling the supply and discharge of hydraulic oil from a hydraulic source to the hydraulic cylinder; a means for detecting a load acting on the hydraulic cylinder; a means for comparing the detected load with a reference load and calculating a load variation amount; means for calculating a target stroke value according to this load variation; means for outputting a control signal for a flow control valve according to the target stroke value; means for detecting the stroke amount of a hydraulic cylinder; and the detected stroke amount. means for correcting the control signal of the flow control valve so that the flow rate control valve coincides with a target stroke value; The present invention is characterized by comprising means for comparing whether or not the target stroke value is larger than a predetermined set value, and means for fixing the target stroke value to the predetermined value when the vehicle is in a stopped state and the load fluctuation is less than or equal to the set value. Vehicle suspension system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2711290U JPH03118808U (en) | 1990-03-16 | 1990-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2711290U JPH03118808U (en) | 1990-03-16 | 1990-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03118808U true JPH03118808U (en) | 1991-12-09 |
Family
ID=31529984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2711290U Pending JPH03118808U (en) | 1990-03-16 | 1990-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03118808U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH026607B2 (en) * | 1979-04-12 | 1990-02-13 | Meinan Machinery Works | |
| JPH02241813A (en) * | 1989-03-15 | 1990-09-26 | Fuji Heavy Ind Ltd | Car height control method for vehicle with ground clearance adjusting device |
-
1990
- 1990-03-16 JP JP2711290U patent/JPH03118808U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH026607B2 (en) * | 1979-04-12 | 1990-02-13 | Meinan Machinery Works | |
| JPH02241813A (en) * | 1989-03-15 | 1990-09-26 | Fuji Heavy Ind Ltd | Car height control method for vehicle with ground clearance adjusting device |