JPH01158208U - - Google Patents
Info
- Publication number
- JPH01158208U JPH01158208U JP5330088U JP5330088U JPH01158208U JP H01158208 U JPH01158208 U JP H01158208U JP 5330088 U JP5330088 U JP 5330088U JP 5330088 U JP5330088 U JP 5330088U JP H01158208 U JPH01158208 U JP H01158208U
- Authority
- JP
- Japan
- Prior art keywords
- damping force
- shock absorber
- value
- predetermined
- rate
- 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
- 238000013016 damping Methods 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 3
- 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 8
Landscapes
- Fluid-Damping Devices (AREA)
Description
第１図は本考案の基本概念図、第２〜８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（第１
の検出手段、第２の操作手段）、７０……減衰手
段（第１の操作手段、第２の操作手段）、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（第２の検出手段、第
１の操作手段）、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 8 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 parts 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 action, Fig. 7 is a flowchart showing a program for variable damping force control, and Fig. 8 is a diagram for explaining its action. It is a diagram. 1...Shock absorber, 3...Cylinder,
4... Piston, 60... First piezoelectric element (first
detection means, second operating means), 70... damping means (first operating means, second operating means), 71...
... slider, 72 ... valve core, 73 ... valve body, 74 ... pressure side valve, 75 ... expansion side valve, 76 ... orifice, 77 ... orifice, 90 ... second piezoelectric element (second detection means) , first 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)
液圧を検出する第１の検出手段と、 (b) 減衰力可変型シヨツクアブソーバの伸側の
液圧を検出する第２の検出手段と、 (c) 第１の検出手段および第２の検出手段の出
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、若しくは第１の所定の設定値を越えた
とき、シヨツクアブソーバを所定の高減衰力とし
、変化率が第１の所定値まで低下するとき、若し
くは第２の所定値まで低下すると、所定の低減衰
力とするような制御値を演算する制御手段と、 (d) 制御手段の出力に基づいて圧側の減衰力を
変える第１の操作手段と、 (e) 制御手段の出力に基づいて伸側の減衰力を
変える第２の操作手段と、 を備えたことを特徴とする減衰力可変型液圧緩衝
装置。[Claims for Utility Model Registration] (a) A first detection means for detecting hydraulic pressure on the pressure side of a variable damping force type shock absorber; (b) For detecting hydraulic pressure on the rebound side of a variable damping force type shock absorber. (c) when the rate of change in hydraulic pressure is determined from the outputs of the first and second detecting means, and when the rate of change reaches an extreme value, or when the first predetermined setting is detected; A control value that sets the shock absorber to a predetermined high damping force when the value exceeds the value, and sets the shock absorber to a predetermined low damping force when the rate of change decreases to a first predetermined value or to a second predetermined value. (d) a first operation means for changing the damping force on the compression side based on the output of the control means; and (e) a second operating means for changing the damping force on the rebound side based on the output of the control means. A variable damping force hydraulic shock absorber comprising: an operating means;
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5330088U JP2505230Y2 (en) | 1988-04-19 | 1988-04-19 | Variable damping force hydraulic shock absorber |
| 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 |
|---|---|---|---|
| JP5330088U JP2505230Y2 (en) | 1988-04-19 | 1988-04-19 | Variable damping force hydraulic shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01158208U true JPH01158208U (en) | 1989-11-01 |
| JP2505230Y2 JP2505230Y2 (en) | 1996-07-24 |
Family
ID=31279285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5330088U Expired - Lifetime JP2505230Y2 (en) | 1988-04-14 | 1988-04-19 | Variable damping force hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505230Y2 (en) |
-
1988
- 1988-04-19 JP JP5330088U patent/JP2505230Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2505230Y2 (en) | 1996-07-24 |
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