JPH01158210U - - Google Patents
Info
- Publication number
- JPH01158210U JPH01158210U JP5330288U JP5330288U JPH01158210U JP H01158210 U JPH01158210 U JP H01158210U JP 5330288 U JP5330288 U JP 5330288U JP 5330288 U JP5330288 U JP 5330288U JP H01158210 U JPH01158210 U JP H01158210U
- Authority
- JP
- Japan
- Prior art keywords
- damping force
- shock absorber
- rate
- hydraulic pressure
- change
- 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 9
- 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 4
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 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、該変化率が所定の不
感帯域を越えて極値となると、シヨツクアブソー
バを所定の高減衰力にするとともに、変化率が０
になると、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 compression 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) The rate of change in hydraulic pressure is determined from the outputs of the first and second detection means, and when the rate of change exceeds a predetermined dead band and reaches an extreme value, the shock absorber is set to a predetermined high damping force, and the rate of change is 0.
(d) a first operating means for changing the damping force on the compression side based on the output of the control means; A variable damping force type hydraulic shock absorber comprising: a second operating means for changing the damping force on the rebound side based on the output.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988053302U JP2505232Y2 (en) | 1988-04-19 | 1988-04-19 | Variable damping force hydraulic shock absorber |
| US07/340,062 US4949989A (en) | 1988-04-19 | 1989-04-18 | Automotive suspension system with variable suspension characteristics and variable damping force shock absorber therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988053302U JP2505232Y2 (en) | 1988-04-19 | 1988-04-19 | Variable damping force hydraulic shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01158210U true JPH01158210U (en) | 1989-11-01 |
| JP2505232Y2 JP2505232Y2 (en) | 1996-07-24 |
Family
ID=31279287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988053302U Expired - Lifetime JP2505232Y2 (en) | 1988-04-19 | 1988-04-19 | Variable damping force hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505232Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6185210A (en) * | 1984-10-01 | 1986-04-30 | Nippon Soken Inc | Shock absorber with adjustable damping force |
| JPS62198513A (en) * | 1986-02-25 | 1987-09-02 | Atsugi Motor Parts Co Ltd | Damping force control device for hydraulic buffer |
| JPS6324005U (en) * | 1986-07-31 | 1988-02-17 |
-
1988
- 1988-04-19 JP JP1988053302U patent/JP2505232Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6185210A (en) * | 1984-10-01 | 1986-04-30 | Nippon Soken Inc | Shock absorber with adjustable damping force |
| JPS62198513A (en) * | 1986-02-25 | 1987-09-02 | Atsugi Motor Parts Co Ltd | Damping force control device for hydraulic buffer |
| JPS6324005U (en) * | 1986-07-31 | 1988-02-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2505232Y2 (en) | 1996-07-24 |