JPH0181381U - - Google Patents
Info
- Publication number
- JPH0181381U JPH0181381U JP17787187U JP17787187U JPH0181381U JP H0181381 U JPH0181381 U JP H0181381U JP 17787187 U JP17787187 U JP 17787187U JP 17787187 U JP17787187 U JP 17787187U JP H0181381 U JPH0181381 U JP H0181381U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- power
- hydraulic pressure
- control
- source
- 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
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 1
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Description
第１図は本考案に係る４輪操舵装置の油圧回路
図、第２図は第１図に示す油圧アクチユエータ８
及び加算制御機構６の詳細構成を示すブロツク図
、第３図は第２図の矢線から視た部分側面図、
第４図は第２図の矢線から視た部分側面図、第
５図は第１図に示す油圧制御弁装置７の詳細油圧
回路図、第６図は第１図に示すオイルポンプ１０
の作動特性図、第７図は加算制御機構６による操
舵制御手順を示すフローチヤート、第８図は油圧
アクチユエータ及び加算制御機構の第２の実施例
を示し、第２図に類似のブロツク図、第９図及び
第１０図は油圧アクチユエータ及び加算制御機構
の第３の実施例を示し、第２図に類似のブロツク
図、第１１図は油圧アクチユエータ及び加算制御
機構の第４の実施例を示し、第２図に類似のブロ
ツク図である。
１……後輪、２……パワーシリンダ、４……サ
ーボバルブ（第１の制御弁）、６，６Ａ，６Ｂ，
６Ｃ……加算制御機構、７……油圧制御弁装置（
第２の制御弁）、８……油圧アクチユエータ、１
０……オイルポンプ（制御油圧源）、１１……ス
テアリングホイール、１６……オイルポンプ（動
力油圧源）、６１……モータ、６２……歯車機構
、６３……コントローラ、６４……操舵角センサ
、６５……車速センサ、６７……歯車機構。
Fig. 1 is a hydraulic circuit diagram of a four-wheel steering system according to the present invention, and Fig. 2 is a hydraulic actuator 8 shown in Fig. 1.
and a block diagram showing the detailed configuration of the addition control mechanism 6; FIG. 3 is a partial side view seen from the arrow in FIG. 2;
4 is a partial side view seen from the arrow line in FIG. 2, FIG. 5 is a detailed hydraulic circuit diagram of the hydraulic control valve device 7 shown in FIG. 1, and FIG. 6 is the oil pump 10 shown in FIG. 1.
FIG. 7 is a flowchart showing the steering control procedure by the addition control mechanism 6, FIG. 8 shows a second embodiment of the hydraulic actuator and the addition control mechanism, and is a block diagram similar to FIG. 9 and 10 show a third embodiment of the hydraulic actuator and addition control mechanism, a block diagram similar to FIG. 2, and FIG. 11 show a fourth embodiment of the hydraulic actuator and addition control mechanism. , a block diagram similar to FIG. 2; 1... Rear wheel, 2... Power cylinder, 4... Servo valve (first control valve), 6, 6A, 6B,
6C... Addition control mechanism, 7... Hydraulic control valve device (
second control valve), 8...hydraulic actuator, 1
0... Oil pump (control hydraulic pressure source), 11... Steering wheel, 16... Oil pump (power hydraulic power source), 61... Motor, 62... Gear mechanism, 63... Controller, 64... Steering angle sensor , 65...Vehicle speed sensor, 67...Gear mechanism.
Claims (1)
動油圧に応動して後輪を操舵するパワーシリンダ
と、前記動力油圧源とパワーシリンダ間に介装さ
れ、パワーシリンダへの作動油圧の供給を制御す
る第１の制御弁と、制御油圧源と、該制御油圧源
から供給される作動油圧に応動して前記第１の制
御弁を作動させる油圧アクチユエータと、前記制
御油圧源と油圧アクチユエータ間に介装され、少
なくとも前記前輪の操舵量を含む第１の操舵制御
パラメータに応じて前記油圧アクチユエータへの
作動油圧の供給を制御する第２の制御弁と、前輪
操舵時に第２の操舵制御パラメータに応じて前記
油圧アクチユエータの出力中立点を制御する加算
制御機構とを備えてなることを特徴とする４輪操
舵装置。 A power hydraulic power source, a power cylinder that steers the rear wheels in response to the working hydraulic pressure supplied from the power hydraulic power source, and a power cylinder that is interposed between the power hydraulic power source and the power cylinder and supplies the working hydraulic pressure to the power cylinder. a first control valve to be controlled; a control hydraulic pressure source; a hydraulic actuator that operates the first control valve in response to the hydraulic pressure supplied from the control hydraulic pressure source; and a hydraulic actuator between the control hydraulic pressure source and the hydraulic actuator. a second control valve that is interposed and controls the supply of hydraulic pressure to the hydraulic actuator according to a first steering control parameter that includes at least a steering amount of the front wheels; A four-wheel steering device comprising: an addition control mechanism that controls an output neutral point of the hydraulic actuator accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177871U JPH078356Y2 (en) | 1987-11-20 | 1987-11-20 | 4-wheel steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177871U JPH078356Y2 (en) | 1987-11-20 | 1987-11-20 | 4-wheel steering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0181381U true JPH0181381U (en) | 1989-05-31 |
| JPH078356Y2 JPH078356Y2 (en) | 1995-03-01 |
Family
ID=31469522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987177871U Expired - Lifetime JPH078356Y2 (en) | 1987-11-20 | 1987-11-20 | 4-wheel steering system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078356Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6045266U (en) * | 1983-09-05 | 1985-03-30 | トヨタ自動車株式会社 | Vehicle rear wheel steering device |
| JPS621318A (en) * | 1985-06-27 | 1987-01-07 | Toshiba Corp | Signal changeover device |
-
1987
- 1987-11-20 JP JP1987177871U patent/JPH078356Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6045266U (en) * | 1983-09-05 | 1985-03-30 | トヨタ自動車株式会社 | Vehicle rear wheel steering device |
| JPS621318A (en) * | 1985-06-27 | 1987-01-07 | Toshiba Corp | Signal changeover device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH078356Y2 (en) | 1995-03-01 |