JPH0264409U - - Google Patents
Info
- Publication number
- JPH0264409U JPH0264409U JP14427988U JP14427988U JPH0264409U JP H0264409 U JPH0264409 U JP H0264409U JP 14427988 U JP14427988 U JP 14427988U JP 14427988 U JP14427988 U JP 14427988U JP H0264409 U JPH0264409 U JP H0264409U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- acceleration
- shock absorber
- hydraulic
- generates
- 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
- 230000001133 acceleration Effects 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
Description
第１図は本考案実施例のサスペンシヨンシステ
ムの要部の構成を示す断面図、第２図は本考案実
施例システムの全体構成を示す断面図、第３図は
実施例システムのコントロールユニツトの構成を
示す構成説明図、第４図はコントロールユニツト
の一部を示す回路図、第５図はコントロールユニ
ツトにおける作動流れを示すフローチヤート、第
６図は実施例システムの作用説明図である。
１……液圧緩衝器、５……ピストン、５６……
伸側デイスクバルブ、５７……圧側デイスクバル
ブ、８０……第１の圧電素子（液圧センサ）、９
０……第２の圧電素子（液圧センサ）、１００…
…コントロールユニツト（減衰力制御手段）、２
０１……加速度センサ。
Fig. 1 is a sectional view showing the configuration of the main parts of the suspension system according to the embodiment of the present invention, Fig. 2 is a sectional view showing the overall structure of the system according to the embodiment of the invention, and Fig. 3 is a sectional view of the control unit of the embodiment system. FIG. 4 is a circuit diagram showing a part of the control unit, FIG. 5 is a flowchart showing the operation flow in the control unit, and FIG. 6 is an explanatory diagram of the operation of the embodiment system. 1... Hydraulic shock absorber, 5... Piston, 56...
Extension side disk valve, 57... Compression side disk valve, 80... First piezoelectric element (hydraulic pressure sensor), 9
0... second piezoelectric element (hydraulic pressure sensor), 100...
...control unit (damping force control means), 2
01... Acceleration sensor.
Claims (1)
イスクバルブと、このデイスクバルブの曲げ剛性
を変化させて発生減衰力を変化可能に設けられた
圧電素子とを有した液圧緩衝器と、 前記液圧緩衝器内液室の液圧を検出し、液圧に
応じた液圧信号を発生する液圧センサと、 前記液圧緩衝器に支持された車体の上下方向加
速度を検出して、加速度に応じた加速度信号を発
生する加速度センサと、 前記液圧信号に基づいた液圧緩衝器のストロー
ク方向の判断と、加速度信号に基づいた車体の傾
斜方向の判断とによつて車両の走行状態を判断し
、この判断結果に応じて圧電素子の駆動を制御す
る減衰力制御手段と、 を備えていることを特徴とするサスペンシヨンシ
ステム。[Claims for Utility Model Registration] Hydraulic shock absorber having a disc valve that generates a damping force during the stroke of a piston, and a piezoelectric element that is provided so that the damping force generated can be varied by changing the bending rigidity of the disc valve. a hydraulic pressure sensor that detects the hydraulic pressure in the liquid chamber in the hydraulic shock absorber and generates a hydraulic pressure signal according to the hydraulic pressure; and a hydraulic pressure sensor that detects the vertical acceleration of the vehicle body supported by the hydraulic shock absorber. and an acceleration sensor that generates an acceleration signal corresponding to the acceleration, a determination of the stroke direction of the hydraulic shock absorber based on the hydraulic pressure signal, and a determination of the tilting direction of the vehicle body based on the acceleration signal. A suspension system comprising: a damping force control means for determining a running state of the vehicle and controlling driving of a piezoelectric element according to the determination result.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988144279U JPH0742820Y2 (en) | 1988-11-04 | 1988-11-04 | Suspension system |
| GB8912368A GB2220624B (en) | 1988-05-31 | 1989-05-30 | Hydraulic shock absorber |
| US07/359,091 US4948163A (en) | 1988-05-31 | 1989-05-30 | Damping characteristics variable hydraulic shock absorber for automotive suspension system with vehicular attitude suppressing capability |
| DE3917716A DE3917716C2 (en) | 1988-05-31 | 1989-05-31 | Suspension system for motor vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988144279U JPH0742820Y2 (en) | 1988-11-04 | 1988-11-04 | Suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0264409U true JPH0264409U (en) | 1990-05-15 |
| JPH0742820Y2 JPH0742820Y2 (en) | 1995-10-04 |
Family
ID=31411847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988144279U Expired - Lifetime JPH0742820Y2 (en) | 1988-05-31 | 1988-11-04 | Suspension system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0742820Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5281823A (en) * | 1975-12-26 | 1977-07-08 | Toyota Central Res & Dev Lab Inc | Control system for suspension device of vehicle |
| JPS636238A (en) * | 1986-06-25 | 1988-01-12 | Nippon Soken Inc | Damping force control device of shock absorber |
-
1988
- 1988-11-04 JP JP1988144279U patent/JPH0742820Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5281823A (en) * | 1975-12-26 | 1977-07-08 | Toyota Central Res & Dev Lab Inc | Control system for suspension device of vehicle |
| JPS636238A (en) * | 1986-06-25 | 1988-01-12 | Nippon Soken Inc | Damping force control device of shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0742820Y2 (en) | 1995-10-04 |
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