JPH01120477U - - Google Patents
Info
- Publication number
- JPH01120477U JPH01120477U JP1668588U JP1668588U JPH01120477U JP H01120477 U JPH01120477 U JP H01120477U JP 1668588 U JP1668588 U JP 1668588U JP 1668588 U JP1668588 U JP 1668588U JP H01120477 U JPH01120477 U JP H01120477U
- Authority
- JP
- Japan
- Prior art keywords
- steering
- vehicle speed
- reference value
- signal
- cylinder chamber
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 1
Description
第１図は本考案によるパワステアリング装置の
全体構成図、第２図は本実施例の油圧回路図、第
３図は本実施例に用いた操舵力制御手段による制
御方法を表すフローチヤート図、第４図は電磁絞
り弁に加えられる基準印加電流と車速Ｖ及び操
舵角θの関係を示す特性マツプ、第５図は第２実
施例を示す油圧回路図、第６図は第３実施例を示
す油圧回路図である。
１……ハンドル、２……ロータリバルブ、３…
…ステアリングシヤフト、４……油圧ポンプ、５
……パワシリンダ、５ａ……第１シリンダ室、５
ｂ……第２シリンダ室、６……電磁絞り弁、７…
…操舵角センサ、８……車速センサ、９……操舵
力制御手段。
FIG. 1 is an overall configuration diagram of a power steering device according to the present invention, FIG. 2 is a hydraulic circuit diagram of this embodiment, and FIG. 3 is a flowchart showing a control method by the steering force control means used in this embodiment. Fig. 4 is a characteristic map showing the relationship between the reference applied current applied to the electromagnetic throttle valve, vehicle speed V, and steering angle θ, Fig. 5 is a hydraulic circuit diagram showing the second embodiment, and Fig. 6 is a diagram showing the third embodiment. It is a hydraulic circuit diagram shown. 1...Handle, 2...Rotary valve, 3...
...Steering shaft, 4...Hydraulic pump, 5
...Power cylinder, 5a...First cylinder chamber, 5
b...Second cylinder chamber, 6...Electromagnetic throttle valve, 7...
... Steering angle sensor, 8 ... Vehicle speed sensor, 9 ... Steering force control means.
Claims (1)
ダ室を有するパワシリンダと、ステアリングシヤ
フトに連結され操舵方向に応じて油圧ポンプと第
１シリンダ室間または油圧ポンプと第２シリンダ
室間を選択的に連通するロータリバルブとを備え
たパワステアリング装置において、 操舵角を検出し操舵角信号を出力する操舵角検
出手段と、 車速を検出し車速信号を出力する車速検出手段
と、 車速及び操舵角に応じて操舵力を制御するため
予め設定した基準値データを記憶し、記憶された
基準値データの中から操舵角信号と車速信号に基
づいて基準値を選択し、かつ操舵角信号に基づき
ハンドルの急速な切返し操作の有無を判定し、急
速な切返し操作が行なわれなかつたときは選択さ
れた基準値をそのまま出力すると共に急速な切返
し操作が行なわれたときは操舵力を一時的に減少
させるため、選択された基準値を補正して出力す
る操舵力制御手段と、 操作舵力制御手段の出力信号に基づいて流体を
制御する流体制御手段とを、設けたことを特徴と
するパワステアリング装置。[Claims for Utility Model Registration] A hydraulic pump, a power cylinder having a first cylinder chamber and a second cylinder chamber, and a hydraulic cylinder connected to a steering shaft and arranged between the hydraulic pump and the first cylinder chamber or between the hydraulic pump and the second cylinder chamber depending on the steering direction. A power steering device equipped with a rotary valve that selectively communicates between cylinder chambers, comprising: a steering angle detection means for detecting a steering angle and outputting a steering angle signal; a vehicle speed detection means for detecting vehicle speed and outputting a vehicle speed signal; , Stores reference value data set in advance to control steering force according to vehicle speed and steering angle, selects a reference value from the stored reference value data based on a steering angle signal and a vehicle speed signal, and controls steering force. Based on the angle signal, it is determined whether or not there is a rapid turning operation of the steering wheel, and if a rapid turning operation is not performed, the selected reference value is output as is, and when a rapid turning operation is performed, the steering force is reduced. A steering force control means for correcting and outputting a selected reference value in order to temporarily reduce the value, and a fluid control means for controlling fluid based on an output signal of the operating steering force control means. Power steering device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1668588U JPH01120477U (en) | 1988-02-10 | 1988-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1668588U JPH01120477U (en) | 1988-02-10 | 1988-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01120477U true JPH01120477U (en) | 1989-08-15 |
Family
ID=31229827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1668588U Pending JPH01120477U (en) | 1988-02-10 | 1988-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01120477U (en) |
-
1988
- 1988-02-10 JP JP1668588U patent/JPH01120477U/ja active Pending
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