JPH0177575U - - Google Patents
Info
- Publication number
- JPH0177575U JPH0177575U JP1987173334U JP17333487U JPH0177575U JP H0177575 U JPH0177575 U JP H0177575U JP 1987173334 U JP1987173334 U JP 1987173334U JP 17333487 U JP17333487 U JP 17333487U JP H0177575 U JPH0177575 U JP H0177575U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- steering
- pressure
- hydraulic pump
- hydraulic actuator
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Description
図面は、本考案の一実施例を示す概略図である
。
１……パワーステアリング装置、８……操舵制
御バルブ、２２……油圧アクチユエータ、３２…
…位相制御バルブ。
The drawing is a schematic diagram showing an embodiment of the present invention. 1... Power steering device, 8... Steering control valve, 22... Hydraulic actuator, 32...
…Phase control valve.
Claims (1)
作動し後輪を操舵するよう設けられた油圧アクチ
ユエータ、同油圧アクチユエータと上記第１の油
圧ポンプとを接続する油路に介装されると共に前
輪用パワーステアリング装置の左右圧力室で発生
する油圧力をパイロツト圧力として導入し前輪の
操舵方向及び上記パイロツト圧力に応じて上記油
圧アクチユエータ側の油路と上記第１の油圧ポン
プ側の油路との連通状態を制御するよう構成され
た操舵制御バルブ、及び上記油圧アクチユエータ
と上記第１の油圧ポンプとを接続する油路に上記
操舵制御バルブと直列に配置されると共に、車速
に応じた油圧を発生する第２の油圧ポンプから供
給される油圧力をパイロツト圧力として導入して
作動し、このパイロツト圧力の上昇と共に前輪の
操舵に対する後輪の操舵方向が逆相方向から同相
方向に変化するよう上記油圧アクチユエータ側の
油路と上記第１の油圧ポンプ側の油路との連通状
態を制御するよう構成された位相制御バルブを備
えたことを特徴とする４輪操舵装置。 A hydraulic actuator is provided to receive pressure oil supplied from a first hydraulic pump and operate to steer the rear wheels, and is interposed in an oil passage connecting the hydraulic actuator and the first hydraulic pump. Hydraulic pressure generated in the left and right pressure chambers of the front wheel power steering device is introduced as a pilot pressure, and an oil path on the hydraulic actuator side and an oil path on the first hydraulic pump side are connected according to the steering direction of the front wheels and the pilot pressure. a steering control valve configured to control the communication state of the hydraulic actuator, and a steering control valve arranged in series with the steering control valve in an oil passage connecting the hydraulic actuator and the first hydraulic pump, and configured to apply hydraulic pressure according to the vehicle speed. It is operated by introducing the hydraulic pressure supplied from the second hydraulic pump generated as pilot pressure, and as the pilot pressure increases, the steering direction of the rear wheels relative to the steering of the front wheels changes from the opposite phase direction to the same phase direction. A four-wheel steering device comprising a phase control valve configured to control a communication state between an oil passage on the hydraulic actuator side and an oil passage on the first hydraulic pump side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987173334U JPH0177575U (en) | 1987-11-13 | 1987-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987173334U JPH0177575U (en) | 1987-11-13 | 1987-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0177575U true JPH0177575U (en) | 1989-05-25 |
Family
ID=31465261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987173334U Pending JPH0177575U (en) | 1987-11-13 | 1987-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0177575U (en) |
-
1987
- 1987-11-13 JP JP1987173334U patent/JPH0177575U/ja active Pending