JPH03120207U - - Google Patents
Info
- Publication number
- JPH03120207U JPH03120207U JP2893190U JP2893190U JPH03120207U JP H03120207 U JPH03120207 U JP H03120207U JP 2893190 U JP2893190 U JP 2893190U JP 2893190 U JP2893190 U JP 2893190U JP H03120207 U JPH03120207 U JP H03120207U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic cylinder
- load
- control valve
- detected
- constant
- 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
- 238000006073 displacement reaction Methods 0.000 claims 2
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
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、第６図ａ
，ｂは模擬ばね定数とダンパ定数の特性図である
。
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。
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 control operation, Figure 6a
, b are characteristic diagrams of the simulated spring constant and damper constant. 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.
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、この検出荷重と基準荷重との比較
から荷重変動分を演算する手段と、油圧シリンダ
のストローク量を検出する手段と、所望の模擬ば
ね定数を設定した手段と、同じく模擬ダンパ定数
を設定した手段と、前記検出した油圧シリンダス
トローク変位とその変位速度にもとづいて前記ば
ね定数とダンパ定数の設定手段から選択したその
ときのばね定数及びダンパ定数と前記演算により
求めた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、前記検出し
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 supply and discharge of hydraulic oil from a hydraulic source to a hydraulic cylinder; means for detecting a load acting on the hydraulic cylinder; and means for calculating a load variation amount by comparing the detected load with a reference load; means for detecting the stroke amount of the hydraulic cylinder, means for setting a desired simulated spring constant, means for similarly setting a simulated damper constant, and the spring constant based on the detected hydraulic cylinder stroke displacement and its displacement speed. means for calculating a target stroke value according to the spring constant and damper constant selected from the damper constant setting means at that time and the load fluctuation obtained by the calculation; and a control signal for the flow rate control valve corresponding to the target stroke value. and means for correcting a control signal of the flow control valve so that the detected stroke amount matches a target stroke value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990028931U JP2512556Y2 (en) | 1990-03-20 | 1990-03-20 | Vehicle suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990028931U JP2512556Y2 (en) | 1990-03-20 | 1990-03-20 | Vehicle suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03120207U true JPH03120207U (en) | 1991-12-10 |
| JP2512556Y2 JP2512556Y2 (en) | 1996-10-02 |
Family
ID=31531715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990028931U Expired - Lifetime JP2512556Y2 (en) | 1990-03-20 | 1990-03-20 | Vehicle suspension system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2512556Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5455913A (en) * | 1977-08-26 | 1979-05-04 | Daimler Benz Ag | Active vibration damping method and its device |
| JPS61193907A (en) * | 1985-02-25 | 1986-08-28 | Nissan Motor Co Ltd | Active suspension controller |
| JPS61261116A (en) * | 1985-05-15 | 1986-11-19 | Nippon Denso Co Ltd | Vehicle level control device |
| JPS6296113A (en) * | 1985-10-22 | 1987-05-02 | Toyota Motor Corp | Ground clearance adjuster for vehicle |
-
1990
- 1990-03-20 JP JP1990028931U patent/JP2512556Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5455913A (en) * | 1977-08-26 | 1979-05-04 | Daimler Benz Ag | Active vibration damping method and its device |
| JPS61193907A (en) * | 1985-02-25 | 1986-08-28 | Nissan Motor Co Ltd | Active suspension controller |
| JPS61261116A (en) * | 1985-05-15 | 1986-11-19 | Nippon Denso Co Ltd | Vehicle level control device |
| JPS6296113A (en) * | 1985-10-22 | 1987-05-02 | Toyota Motor Corp | Ground clearance adjuster for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2512556Y2 (en) | 1996-10-02 |
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