JPH027073U - - Google Patents
Info
- Publication number
- JPH027073U JPH027073U JP8326288U JP8326288U JPH027073U JP H027073 U JPH027073 U JP H027073U JP 8326288 U JP8326288 U JP 8326288U JP 8326288 U JP8326288 U JP 8326288U JP H027073 U JPH027073 U JP H027073U
- Authority
- JP
- Japan
- Prior art keywords
- reaction force
- steering
- chamber
- pressure
- control
- 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
- 230000005284 excitation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Steering Control In Accordance With Driving Conditions (AREA)
Description
図面第１〜３図はこの考案の第１実施例を示す
もので、第１図は電磁反力制御弁の断面図、第２
図は操舵力と出力との関係を示したグラフ、第３
図は故障時の操舵力と出力との関係を示したグラ
フ、第４図は第２実施例の電磁反力制御弁の断面
図、第５〜７図は従来例を示すもので、第５図は
回路図、第６図は電磁反力制御弁の断面図、第７
図は操舵力と出力との関係を示したグラフ、第８
，９図は他の従来例を示すもので、第８図は回路
図、第９図は電磁反力制御弁の断面図である。
Ｐ……ポンプ、１……反力室、Ｖ……電磁反力
制御弁、４……アウトポート、７……スプール、
９……ソレノイド、２１……制御オリフイス、２
３，２５……圧力室。
Figures 1 to 3 show the first embodiment of this invention, where Figure 1 is a sectional view of the electromagnetic reaction force control valve, and Figure 2 is a sectional view of the electromagnetic reaction force control valve.
The figure is a graph showing the relationship between steering force and output.
The figure is a graph showing the relationship between steering force and output at the time of failure, Figure 4 is a cross-sectional view of the electromagnetic reaction force control valve of the second embodiment, and Figures 5 to 7 show conventional examples. The figure is a circuit diagram, Figure 6 is a sectional view of the electromagnetic reaction force control valve, and Figure 7 is a sectional view of the electromagnetic reaction force control valve.
The figure is a graph showing the relationship between steering force and output.
, 9 show other conventional examples, FIG. 8 is a circuit diagram, and FIG. 9 is a sectional view of the electromagnetic reaction force control valve. P... pump, 1... reaction force chamber, V... electromagnetic reaction force control valve, 4... out port, 7... spool,
9... Solenoid, 21... Control orifice, 2
3,25...pressure chamber.
Claims (1)
換わるとともに操舵反力を発生させる反力室を形
成したステアリングバルブと、このステアリング
バルブに接続したポンプ及びタンクと、同じくス
テアリングバルブに接続したパワーシリンダと、
上記反力室とタンクとの間に接続され、この反力
室の圧力を制御する電磁反力制御弁とを備え、し
かも、この電磁反力制御弁は、ソレノイドに対す
る励磁電流に応じて、反力室からタンクに通じる
流路の開度を制御する構成にした操舵力制御装置
において、上記電磁反力制御弁のスプールの両端
を圧力室に臨ませるとともに、そのアウトポート
側に制御オリフイスを形成し、この制御オリフイ
スの前圧を一方の圧力室に導き、後圧を他方の圧
力室に導き、しかも、この圧力室の圧力作用でス
プールの位置を制御する構成にした操舵力制御装
置のフエイルセイフ装置。 A steering valve that switches in accordance with the direction of rotation of the steering wheel and forms a reaction force chamber that generates a steering reaction force, a pump and a tank connected to this steering valve, and a power cylinder also connected to the steering valve.
The electromagnetic reaction force control valve is connected between the reaction force chamber and the tank and controls the pressure of the reaction force chamber, and the electromagnetic reaction force control valve is configured to control the reaction force according to the excitation current to the solenoid. In a steering force control device configured to control the opening degree of a flow path leading from a force chamber to a tank, both ends of the spool of the electromagnetic reaction force control valve face the pressure chamber, and a control orifice is formed on the out port side of the spool. A fail-safe steering force control device is constructed in which the front pressure of this control orifice is guided to one pressure chamber, the back pressure is guided to the other pressure chamber, and the position of the spool is controlled by the pressure action of this pressure chamber. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8326288U JPH027073U (en) | 1988-06-23 | 1988-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8326288U JPH027073U (en) | 1988-06-23 | 1988-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH027073U true JPH027073U (en) | 1990-01-17 |
Family
ID=31307987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8326288U Pending JPH027073U (en) | 1988-06-23 | 1988-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027073U (en) |
-
1988
- 1988-06-23 JP JP8326288U patent/JPH027073U/ja active Pending