JPH0274212U - - Google Patents
Info
- Publication number
- JPH0274212U JPH0274212U JP15543988U JP15543988U JPH0274212U JP H0274212 U JPH0274212 U JP H0274212U JP 15543988 U JP15543988 U JP 15543988U JP 15543988 U JP15543988 U JP 15543988U JP H0274212 U JPH0274212 U JP H0274212U
- Authority
- JP
- Japan
- Prior art keywords
- damping force
- vehicle
- judgment
- vehicle speed
- road surface
- 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 6
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 238000004441 surface measurement Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
Description
第１図は本考案の一実施例を示す構成図、第２
図は同実施例のフローチヤート、第３図は悪路走
行時の車速と上下方向の加速度との関係を示す特
性図、第４図は悪路走行時の車速とばね上高さと
の関係を示す特性図である。
１…振動センサ、２…車速センサ、３…液圧緩
衝器、４…路面判定部、５…車速判定部、６…減
衰力モード選定部、７…アクチユエータ、Ｑ１…
振動信号、Ｑ２…車速信号、Ｑ４−１…悪路走行
判定信号、Ｑ４−２…正常路走行判定信号、Ｑ６
−１，Ｑ６−２…制御信号、Ｓ…振動数、Ｋ１…
上限値、Ｋ２…下限値、Ｋ３…基準振動数。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a flowchart of the same embodiment, Figure 3 is a characteristic diagram showing the relationship between vehicle speed and vertical acceleration when driving on a rough road, and Figure 4 is a characteristic diagram showing the relationship between vehicle speed and sprung mass height when driving on a rough road. FIG. DESCRIPTION OF SYMBOLS 1... Vibration sensor, 2... Vehicle speed sensor, 3... Hydraulic pressure shock absorber, 4... Road surface determination section, 5... Vehicle speed determination section, 6... Damping force mode selection section, 7... Actuator, Q1 ...
Vibration signal, Q 2 ... Vehicle speed signal, Q 4-1 ... Bad road driving judgment signal, Q 4-2 ... Normal road driving judgment signal, Q 6
-1 , Q 6-2 ...control signal, S...frequency, K1 ...
Upper limit value, K2 ...lower limit value, K3 ...reference frequency.
Claims (1)
走行中か否かの判定を行う車速判定部と、 前記路面判定部からの悪路判定を受け取つたと
きに車速判定部からの判定が低速走行中のときに
は液圧緩衝器の減衰力を最小モードに設定する一
方、上記判定が低速走行中でないときには減圧緩
衝器の減衰力をそれより高側モードに設定する減
衰力モード選定部と、 を備えたことを特徴とする減衰力制御装置。[Scope of claim for utility model registration] A road surface determination unit that determines whether the road surface is rough; a vehicle speed determination unit that receives a vehicle speed signal from a vehicle speed sensor and determines whether the vehicle is traveling at a low speed; When receiving the rough road judgment from the road surface judgment section, if the judgment from the vehicle speed judgment section is that the vehicle is running at low speed, the damping force of the hydraulic shock absorber is set to the minimum mode, while if the judgment is that the vehicle is not running at low speed, the damping force is reduced. A damping force control device comprising: a damping force mode selection unit that sets the damping force of a shock absorber to a higher mode.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15543988U JPH0274212U (en) | 1988-11-29 | 1988-11-29 | |
| DE3937841A DE3937841A1 (en) | 1988-11-14 | 1989-11-14 | Road unevenness detector for vehicle suspension control - has lateral acceleration sensor for vehicle body with discriminator circuit |
| US08/152,880 US5487006A (en) | 1988-11-14 | 1993-11-16 | System for detecting road roughness for suspension control and automotive suspension control system utilizing thus detected road roughness as control parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15543988U JPH0274212U (en) | 1988-11-29 | 1988-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0274212U true JPH0274212U (en) | 1990-06-06 |
Family
ID=31433070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15543988U Pending JPH0274212U (en) | 1988-11-14 | 1988-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0274212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190099487A (en) * | 2017-02-24 | 2019-08-27 | 히다치 오토모티브 시스템즈 가부시키가이샤 | Vehicle behavior control device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6164517A (en) * | 1984-09-06 | 1986-04-02 | Nissan Motor Co Ltd | Vehicle suspension device |
| JPS6280113A (en) * | 1985-10-02 | 1987-04-13 | Toyota Motor Corp | Suspension controlling device |
| JPS62244709A (en) * | 1986-04-15 | 1987-10-26 | Matsushita Electric Works Ltd | Vehicle heater |
-
1988
- 1988-11-29 JP JP15543988U patent/JPH0274212U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6164517A (en) * | 1984-09-06 | 1986-04-02 | Nissan Motor Co Ltd | Vehicle suspension device |
| JPS6280113A (en) * | 1985-10-02 | 1987-04-13 | Toyota Motor Corp | Suspension controlling device |
| JPS62244709A (en) * | 1986-04-15 | 1987-10-26 | Matsushita Electric Works Ltd | Vehicle heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190099487A (en) * | 2017-02-24 | 2019-08-27 | 히다치 오토모티브 시스템즈 가부시키가이샤 | Vehicle behavior control device |
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