JPH0235809U - - Google Patents
Info
- Publication number
- JPH0235809U JPH0235809U JP11545288U JP11545288U JPH0235809U JP H0235809 U JPH0235809 U JP H0235809U JP 11545288 U JP11545288 U JP 11545288U JP 11545288 U JP11545288 U JP 11545288U JP H0235809 U JPH0235809 U JP H0235809U
- Authority
- JP
- Japan
- Prior art keywords
- damping force
- shock absorber
- hydraulic
- force variable
- variable
- 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 9
- 230000035939 shock Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 claims 3
- 239000012530 fluid Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fluid-Damping Devices (AREA)
Description
第１〜５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１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
２図はその要部断面構成図、第３図はそのシステ
ムの全体構成図、第４図はその一部分の回路図、
第５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、１４……伸側液室
、１５……圧側液室、８０……第１の圧電素子、
９０……第２の圧電素子、１００……コントロー
ルユニツト（制御手段、信号分離手段）、１０１
……Ｉ／Ｏポート（信号分離手段）、１１０……
入力回路、１２０……演算回路、１３０……駆動
回路、１４０……駆動用電源回路。
1 to 5 are diagrams showing an embodiment of a variable damping force type hydraulic shock absorber according to the present invention. FIG. 1 is a sectional view showing the overall structure of the shock absorber, and FIG. A cross-sectional configuration diagram, Figure 3 is an overall configuration diagram of the system, and Figure 4 is a partial circuit diagram.
FIG. 5 is a diagram for explaining the effect. DESCRIPTION OF SYMBOLS 1... Shock absorber, 14... Extension side liquid chamber, 15... Pressure side liquid chamber, 80... First piezoelectric element,
90...Second piezoelectric element, 100...Control unit (control means, signal separation means), 101
...I/O port (signal separation means), 110...
Input circuit, 120... Arithmetic circuit, 130... Drive circuit, 140... Drive power supply circuit.
Claims (1)
ドの先端側に設けられ、シリンダ内を液圧緩衝器
の伸側行程時容積減少される伸側液室、および、
その圧側行程時容積減少される圧側液室とに画成
すると共に伸側液室と圧側液室とを連通させる通
路を備えたピストンと、 前記通路の流通抵抗を変化させることにより発
生減衰力を変化させる減衰力可変手段と、 前記減衰力可変手段を印加電圧に応じて押圧し
、且、減衰力可変手段を介して何れかの液室の液
圧を受け、液圧に応じた信号を出力する圧電素子
と、 前記圧電素子を駆動する制御手段とを備えた減
衰力可変型液圧緩衝器において、 前記制御手段は、圧電素子からの出力信号のう
ち直流成分を遮断し、交流成分のみを通過させる
信号分離手段を設け、当該信号分離手段を介して
液圧緩衝器内の液圧を検出することを特徴とする
減衰力可変型液圧緩衝器。[Claims for Utility Model Registration] A cylinder filled with hydraulic fluid, and an expander installed at the tip side of a piston rod inserted from one end of the cylinder, the volume of which is reduced during the expansion stroke of a hydraulic shock absorber inside the cylinder. a side fluid chamber, and
A piston is provided with a passage defining a compression side liquid chamber whose volume is reduced during the compression side stroke and communicating the expansion side liquid chamber with the compression side liquid chamber, and a damping force generated by changing the flow resistance of the passage. a damping force variable means for changing; the damping force variable means is pressed in accordance with an applied voltage; the damping force variable means receives a hydraulic pressure in one of the liquid chambers via the damping force variable means; and a signal is output in accordance with the hydraulic pressure. In the variable damping force hydraulic shock absorber, the damping force variable hydraulic shock absorber includes a piezoelectric element that operates, and a control means that drives the piezoelectric element, wherein the control means blocks a direct current component of an output signal from the piezoelectric element and only transmits an alternating current component. A variable damping force type hydraulic shock absorber, characterized in that a damping force variable hydraulic shock absorber is provided with a signal separation means for passing through the signal separation means, and a hydraulic pressure within the hydraulic pressure shock absorber is detected via the signal separation means.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11545288U JPH0717523Y2 (en) | 1988-08-31 | 1988-08-31 | Variable damping force hydraulic shock absorber |
| US07/337,349 US4984819A (en) | 1988-04-14 | 1989-04-13 | Automotive suspension system and shock absorber therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11545288U JPH0717523Y2 (en) | 1988-08-31 | 1988-08-31 | Variable damping force hydraulic shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0235809U true JPH0235809U (en) | 1990-03-08 |
| JPH0717523Y2 JPH0717523Y2 (en) | 1995-04-26 |
Family
ID=31357124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11545288U Expired - Lifetime JPH0717523Y2 (en) | 1988-04-14 | 1988-08-31 | Variable damping force hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717523Y2 (en) |
-
1988
- 1988-08-31 JP JP11545288U patent/JPH0717523Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0717523Y2 (en) | 1995-04-26 |
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