JPS57201767A - Power steering device - Google Patents
Power steering deviceInfo
- Publication number
- JPS57201767A JPS57201767A JP56086288A JP8628881A JPS57201767A JP S57201767 A JPS57201767 A JP S57201767A JP 56086288 A JP56086288 A JP 56086288A JP 8628881 A JP8628881 A JP 8628881A JP S57201767 A JPS57201767 A JP S57201767A
- Authority
- JP
- Japan
- Prior art keywords
- steering
- oil pump
- valve
- reversible
- oil
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
Abstract
PURPOSE:To eliminate the need for a control valve for a simpler construction by adopting a reversible oil pump. CONSTITUTION:A clockwise rotation of a steering wheel 3 is detected by a steering sensor 12, which generates a positive steering signal to an IC servo amplifier 13 to drive a reversible oil pump 4 to supply pressure oil into an oil chamber 2b of a power cylinder 2. A pressure difference occurs in the vicinity of the outlet ports 4a, 4b of the reversible oil pump 4 by the effect of orifices 6a, 7a, causing a pressure difference between valve cases 8h, 8i of a bypass valve 8 via pilot passages 10, 11, so that a valve body 8d is displaced against a resilient force of a spring 8f to shut off connection of a bypass passage 9 at a large diameter part 8c. The supply of the pressure oil for the power cylinder 2 forces a piston 2a to the right, thereby reinforcing steering power.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56086288A JPS57201767A (en) | 1981-06-03 | 1981-06-03 | Power steering device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56086288A JPS57201767A (en) | 1981-06-03 | 1981-06-03 | Power steering device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57201767A true JPS57201767A (en) | 1982-12-10 |
JPH0117901B2 JPH0117901B2 (en) | 1989-04-03 |
Family
ID=13882642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56086288A Granted JPS57201767A (en) | 1981-06-03 | 1981-06-03 | Power steering device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57201767A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60151179A (en) * | 1983-09-28 | 1985-08-09 | テイ−ア−ルダブリユ− カム ギヤズ リミテツド | Power steering gear for car |
JPS6250275A (en) * | 1985-08-29 | 1987-03-04 | Toyoda Mach Works Ltd | Steering-force controller for power steering device |
JPS62118784U (en) * | 1986-01-21 | 1987-07-28 | ||
EP0342848A2 (en) * | 1988-05-20 | 1989-11-23 | LUCAS INDUSTRIES public limited company | Power assistance for vehicle steering mechanisms |
WO1992000215A1 (en) * | 1990-06-22 | 1992-01-09 | Robert Bosch Gmbh | Servo-assisted steering system for vehicles |
JP2001187580A (en) * | 1999-11-16 | 2001-07-10 | Trw Fahrwerksysteme Gmbh & Co Kg | Electrohydraulic steering system |
US6568499B2 (en) | 2000-11-21 | 2003-05-27 | Unisia Jecs Corporation | Power steering system for vehicles |
US6880668B2 (en) | 2001-05-17 | 2005-04-19 | Hitachi, Ltd. | Power steering device |
JP2006062464A (en) * | 2004-08-25 | 2006-03-09 | Nissan Motor Co Ltd | Power steering system |
KR20060107920A (en) * | 2005-04-11 | 2006-10-16 | 가부시키가이샤 히타치세이사쿠쇼 | Power steering apparatus |
US7128182B2 (en) | 2003-01-23 | 2006-10-31 | Hitachi, Ltd. | Power steering system |
JP2008254707A (en) * | 2007-04-09 | 2008-10-23 | Jtekt Corp | Power steering device |
CN102782336A (en) * | 2010-01-14 | 2012-11-14 | Faac股份公司 | Oil hydraulic system for moving a gate |
-
1981
- 1981-06-03 JP JP56086288A patent/JPS57201767A/en active Granted
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60151179A (en) * | 1983-09-28 | 1985-08-09 | テイ−ア−ルダブリユ− カム ギヤズ リミテツド | Power steering gear for car |
JPS60151178A (en) * | 1983-09-28 | 1985-08-09 | テイ−ア−ルダブリユ− カム ギヤズ リミテツド | Power steering gear for car |
JPS6250275A (en) * | 1985-08-29 | 1987-03-04 | Toyoda Mach Works Ltd | Steering-force controller for power steering device |
JPS62118784U (en) * | 1986-01-21 | 1987-07-28 | ||
EP0342848A2 (en) * | 1988-05-20 | 1989-11-23 | LUCAS INDUSTRIES public limited company | Power assistance for vehicle steering mechanisms |
EP0342848A3 (en) * | 1988-05-20 | 1990-12-19 | LUCAS INDUSTRIES public limited company | Power assistance for vehicle steering mechanisms |
WO1992000215A1 (en) * | 1990-06-22 | 1992-01-09 | Robert Bosch Gmbh | Servo-assisted steering system for vehicles |
JP2001187580A (en) * | 1999-11-16 | 2001-07-10 | Trw Fahrwerksysteme Gmbh & Co Kg | Electrohydraulic steering system |
US6568499B2 (en) | 2000-11-21 | 2003-05-27 | Unisia Jecs Corporation | Power steering system for vehicles |
DE10157000B4 (en) * | 2000-11-21 | 2009-10-29 | Hitachi, Ltd. | Power steering for vehicles |
US6880668B2 (en) | 2001-05-17 | 2005-04-19 | Hitachi, Ltd. | Power steering device |
US7325645B2 (en) | 2001-05-17 | 2008-02-05 | Hitachi, Ltd. | Power steering device |
US7128182B2 (en) | 2003-01-23 | 2006-10-31 | Hitachi, Ltd. | Power steering system |
JP2006062464A (en) * | 2004-08-25 | 2006-03-09 | Nissan Motor Co Ltd | Power steering system |
JP4506354B2 (en) * | 2004-08-25 | 2010-07-21 | 日産自動車株式会社 | Power steering device |
KR20060107920A (en) * | 2005-04-11 | 2006-10-16 | 가부시키가이샤 히타치세이사쿠쇼 | Power steering apparatus |
JP2008254707A (en) * | 2007-04-09 | 2008-10-23 | Jtekt Corp | Power steering device |
CN102782336A (en) * | 2010-01-14 | 2012-11-14 | Faac股份公司 | Oil hydraulic system for moving a gate |
Also Published As
Publication number | Publication date |
---|---|
JPH0117901B2 (en) | 1989-04-03 |
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