JPH01158207U - - Google Patents
Info
- Publication number
- JPH01158207U JPH01158207U JP5329988U JP5329988U JPH01158207U JP H01158207 U JPH01158207 U JP H01158207U JP 5329988 U JP5329988 U JP 5329988U JP 5329988 U JP5329988 U JP 5329988U JP H01158207 U JPH01158207 U JP H01158207U
- Authority
- JP
- Japan
- Prior art keywords
- damping force
- hydraulic pressure
- shock absorber
- rate
- output
- 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
- 238000013016 damping Methods 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Fluid-Damping Devices (AREA)
Description
第１図は本考案の基本概念図、第２〜９図は本
考案に係る減衰力可変型液圧緩衝装置の一実施例
を示す図であり、第２図はそのシヨツクアブソー
バの全体構成を示す断面図、第３図はその要部断
面構成図、第４図はそのシステムの全体構成図、
第５図はその一部分の回路図、第６図はその作用
を説明するための図、第７図はその減衰力可変制
御のプログラムを示すフローチヤート、第８，９
図はその作用を説明するための図である。
１……シヨツクアブソーバ、３……シリンダ、
４……ピストン、６０……第１の圧電素子（液圧
検出手段）、７０……減衰手段（減衰力操作手段
）、７１…スライダ、７２…バルブコア、７３…
…バルブボデイ、７４……圧側バルブ、７５……
伸側バルブ、７６……オリフイス、７７……オリ
フイス、９０……第２の圧電素子（減衰力操作手
段）、９４……キヤツプ、１００……コントロー
ルユニツト（制御手段）、１０１……Ｉ／Ｏポー
ト、１１０……入力回路、１２０……演算回路、
１３０……駆動回路、１４０……駆動用電源回路
。
Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 to 9 are diagrams showing an embodiment of a variable damping force type hydraulic shock absorber according to the present invention, and Fig. 2 shows the overall structure of the shock absorber. 3 is a cross-sectional diagram of the main part thereof, and FIG. 4 is a diagram of the overall configuration of the system.
Fig. 5 is a circuit diagram of a part of it, Fig. 6 is a diagram for explaining its operation, Fig. 7 is a flowchart showing a program for variable damping force control, and Fig. 8 and 9
The figure is a diagram for explaining the effect. 1...Shock absorber, 3...Cylinder,
4... Piston, 60... First piezoelectric element (hydraulic pressure detection means), 70... Damping means (damping force operating means), 71... Slider, 72... Valve core, 73...
...Valve body, 74...Pressure side valve, 75...
Extension side valve, 76... Orifice, 77... Orifice, 90... Second piezoelectric element (damping force operating means), 94... Cap, 100... Control unit (control means), 101... I/O port, 110...input circuit, 120...arithmetic circuit,
130...drive circuit, 140...drive power supply circuit.
Claims (1)
液圧を検出する液圧検出手段と、 (b) 液圧検出手段の出力から液圧の変化率を求
め、該変化率が極値となつたときシヨツクアブソ
ーバを所定の高減衰力とし、変化率が所定値まで
低下すると所定の低減衰力とし、液圧検出手段の
出力がバウンド側で所定値を越えているときシヨ
ツクアブソーバを所定の高減衰力とするような制
御値を演算する制御手段と、 (c) 制御手段の出力に基づいて圧側の減衰力を
変える減衰力操作手段と、 を備えたことを特徴とする減衰力可変型液圧緩衝
装置。[Scope of Claim for Utility Model Registration] (a) A hydraulic pressure detecting means for detecting the hydraulic pressure on the pressure side of a variable damping force type shock absorber; (b) A rate of change in hydraulic pressure is determined from the output of the hydraulic pressure detecting means, and When the rate of change reaches an extreme value, the shock absorber is set to a predetermined high damping force, and when the rate of change decreases to a predetermined value, the shock absorber is set to a predetermined low damping force, and the output of the hydraulic pressure detection means exceeds the predetermined value on the bound side. (c) a damping force operating means for changing the damping force on the compression side based on the output of the control means; A variable damping force hydraulic shock absorber.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5329988U JPH01158207U (en) | 1988-04-19 | 1988-04-19 | |
| US07/337,349 US4984819A (en) | 1988-04-14 | 1989-04-13 | Automotive suspension system and shock absorber therefor |
| EP19890303704 EP0337797B1 (en) | 1988-04-14 | 1989-04-14 | Automotive suspension system with variable suspension characteristics and variable damping force shock absorber therefor |
| DE1989619510 DE68919510T2 (en) | 1988-04-14 | 1989-04-14 | Motor vehicle suspension system with variable suspension characteristics and shock absorbers with variable damping force therefor. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5329988U JPH01158207U (en) | 1988-04-19 | 1988-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01158207U true JPH01158207U (en) | 1989-11-01 |
Family
ID=31279284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5329988U Pending JPH01158207U (en) | 1988-04-14 | 1988-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01158207U (en) |
-
1988
- 1988-04-19 JP JP5329988U patent/JPH01158207U/ja active Pending
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