CN200971110Y - Vehicle power steering auxiliary safety system - Google Patents
Vehicle power steering auxiliary safety system Download PDFInfo
- Publication number
- CN200971110Y CN200971110Y CN 200620094170 CN200620094170U CN200971110Y CN 200971110 Y CN200971110 Y CN 200971110Y CN 200620094170 CN200620094170 CN 200620094170 CN 200620094170 U CN200620094170 U CN 200620094170U CN 200971110 Y CN200971110 Y CN 200971110Y
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- China
- Prior art keywords
- steering
- pump
- pressure oil
- valve
- vehicle
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- Expired - Fee Related
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Abstract
A vehicle power steering auxiliary safety system comprises an auxiliary steering oil pump, a hydraulic control valve group and oil line thereof, wherein between pressure oil inlet of the auxiliary steering pump and pressure oil inlet of the steering pump are provided with a hydraulic control reversal valve and a relief valve; a check valve is arranged on the pipeline between the pressure oil outlet and the hydraulic control reversal valve, and another check valve passes through a damping hole and communicates with the pressure oil inlet of the steering pump; the hydraulic reversal valve communicates with a reversal valve, which connects with a switch of an alarm indicating lamp. The auxiliary steering oil pump of the vehicle power steering auxiliary safety system of the present utility model connects with the vehicle gear box, which solves the problem of hard steering of idling vehicle. If, for various reasons, the pressure of the vehicle steering pump drops, the auxiliary steering pump will continue output hydraulic oil and provide pressure for the hydraulic traversing mechanism, thereby ensuring that the vehicle can keep power steering until the motion stops and avoiding traffic accident occurrence.
Description
Technical field:
The utility model relates to automotive parts system, particularly power steering system.
Background technology:
Automobile generally adopts power steering system at present, turns to accuracy with labour intensity and the raising that reduces chaufeur.Wherein steering pump is a constant flow paddle pump, is installed on the driving engine, provides power by driving engine. and the rotating speed of steering pump changes along with the rotation speed change of driving engine all the time, and the flow of its output is respective change also.
When auto idle speed, generally between 600-700rpm, the flow of steering pump output is less for rotating speed of automobile engine, and motor turning can generally feel heavier; When galloping, engine speed can reach between the 3000-3500rpm, and at this moment steering pump can be exported a large amount of flows, and it is lighter that motor turning can be felt, poor stability.
In addition, the transport trolley of large-tonnage automobile, staple product or dangerous material, military vehicle etc., if driving engine breaks down when travelling, power steering is with ineffective, automobile can lose direction suddenly, causes serious traffic accident.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned not enough problem, and a kind of automobile power steering supplementary security system is provided, and is simple in structure, guarantees travelling and steering safety of automobile.
The technical scheme that the utility model is adopted for achieving the above object is: the automobile power steering supplementary security system, form by an assisted diversion oil pump and fluid control valve group and oil circuit thereof, between assisted diversion pump pressure oil-in and the steering pump pressure oil inlet pilot operated directional control valve and by pass valve are housed, on the pipeline check valve is housed between pressure oil outlet and the pilot operated directional control valve, another road check valve is by being communicated with steering pump pressure oil inlet behind the damping hole, be communicated with by pilot operated directional control valve between assisted diversion pump pressure oil-in and the oil sump tank, and change-over valve connects the warning indicator lamp switch.
The utility model automobile power steering supplementary security system assisted diversion oil pump is connected with automobile gearbox, when auto idle speed travels, supplementary security system cooperates fuel feeding with steering pump of automobile, the disadvantage of fuel feeding deficiency when replenishing steering blade pump low speed separately solves the problem of auto idle speed hard steering.When if steering pump of automobile loses pressure for various reasons, because effect of inertia, automobile travels continuing, at this moment speed-changing mechanism will drive assisted diversion pump continuation output hydraulic oil, for hydraulic traversing mechanism provides pressure, thereby guarantee that automobile can continue to keep power steering,, avoid taking place traffic accident up to the automobile stop motion.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model structure principle chart.
The specific embodiment:
As Fig. 1, automobile power steering supplementary security system shown in 2, form by an assisted diversion oil pump and hydraulic valve bank and oil circuit thereof, between assisted diversion pump pressure oil-in P2 and the steering pump pressure oil inlet P1 pilot operated directional control valve 1 and by pass valve 4 are housed, on the pipeline check valve 2 is housed between pressure oil outlet A and the pilot operated directional control valve, another road check valve is communicated with steering pump pressure oil inlet P1 by damping hole 3 backs, be communicated with by pilot operated directional control valve 1 between assisted diversion pump pressure oil-in P2 and the oil sump tank, pilot operated directional control valve connects the switch 5 in the warning indicating circuit, switch 5 and power supply 7, warning indicator lamp 6 forming circuits.
After the utility model motor turning supplementary security system is installed, when auto idle speed travels, steering blade pump enters hydraulic valve by steering pump of automobile pressure oil inlet P1 pressure oil output, because this moment, the flow of output was limited, pressure drop difference by damping hole 3 is not enough to promote pilot operated directional control valve 1 commutation, thereby steering blade pump provides hydraulic oil through hydraulic valve bank for hydraulic traversing mechanism by steering pump of automobile pressure oil inlet P1 and assisted diversion oil pump simultaneously by automobile complementary pump pressure oil inlet P2, the not enough disadvantage of fuel feeding in the time of will replenishing original steering blade pump low speed like this solves the problem of auto idle speed hard steering.Raising along with the speed of a motor vehicle, flow by steering pump of automobile pressure oil inlet P1 strengthens gradually, flow through damping hole 3 also strengthens, the pressure reduction at damping hole 3 two ends is strengthened gradually, will promote pilot operated directional control valve 1 to a certain degree the time and commutate when big, this moment will be by steering blade pump by the independent fuel feeding of steering pump of automobile pressure oil inlet P1, assisted diversion oil pump automobile complementary pump pressure oil inlet P2 is by change-over valve emptying oil sump tank T, automobile enters the cruising state, turns to alarm lamp 6 to extinguish.If driving engine or steering pump be sudden failure for a certain reason, steering pump steering pump of automobile pressure oil inlet P1 will lose pressure, and pilot operated directional control valve 1 will be got back to position, a left side automatically, turn to alarm lamp 6 bright.Because effect of inertia, automobile travels continuing, and at this moment speed-changing mechanism will drive assisted diversion oil pump automobile complementary pump pressure oil inlet P2 and will continue to export hydraulic oil, for hydraulic traversing mechanism provides pressure, thereby guarantee that automobile can continue to keep power steering, up to the automobile stop motion.
Claims (1)
1, the automobile power steering supplementary security system, it is characterized in that: form by an assisted diversion oil pump and hydraulic valve bank and oil circuit thereof, between assisted diversion pump pressure oil-in (P2) and the steering pump pressure oil inlet (P1) pilot operated directional control valve (1) and by pass valve (4) are housed, on the pipeline check valve (2) is housed between pressure oil outlet (A) and the pilot operated directional control valve, another road check valve is communicated with steering pump pressure oil inlet by damping hole (3) back, be communicated with by pilot operated directional control valve (1) between assisted diversion pump pressure oil-in (P2) and the oil sump tank (T), pilot operated directional control valve connects warning indicator lamp switch (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620094170 CN200971110Y (en) | 2006-11-14 | 2006-11-14 | Vehicle power steering auxiliary safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620094170 CN200971110Y (en) | 2006-11-14 | 2006-11-14 | Vehicle power steering auxiliary safety system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200971110Y true CN200971110Y (en) | 2007-11-07 |
Family
ID=38882365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620094170 Expired - Fee Related CN200971110Y (en) | 2006-11-14 | 2006-11-14 | Vehicle power steering auxiliary safety system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200971110Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358182A (en) * | 2011-08-09 | 2012-02-22 | 徐州重型机械有限公司 | Emergency steering pump drive device and hoister applied by same |
| CN103552601A (en) * | 2013-11-07 | 2014-02-05 | 邓平 | Hydraulic steering boosting system with automatic repair function and control method |
| CN103863319A (en) * | 2012-12-12 | 2014-06-18 | 现代自动车株式会社 | System and method for improving steering feeling in neutral gear position of vehicle |
| CN108163049A (en) * | 2017-12-25 | 2018-06-15 | 北汽福田汽车股份有限公司 | For the servo steering system and hybrid electric vehicle of hybrid electric vehicle |
| CN109070935A (en) * | 2016-03-04 | 2018-12-21 | 克诺尔商用车制动系统有限公司 | For keeping the device and method of the hydraulic pressure generated |
| CN112875516A (en) * | 2021-03-19 | 2021-06-01 | 安徽柳工起重机有限公司 | Emergency oil supply switching valve, oil supply system and automobile crane |
| CN115285217A (en) * | 2022-09-06 | 2022-11-04 | 一汽解放汽车有限公司 | Emergency steering power device of commercial vehicle and commercial vehicle |
-
2006
- 2006-11-14 CN CN 200620094170 patent/CN200971110Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358182A (en) * | 2011-08-09 | 2012-02-22 | 徐州重型机械有限公司 | Emergency steering pump drive device and hoister applied by same |
| CN102358182B (en) * | 2011-08-09 | 2015-05-13 | 徐州重型机械有限公司 | Emergency steering pump drive device and hoister applied by same |
| CN103863319A (en) * | 2012-12-12 | 2014-06-18 | 现代自动车株式会社 | System and method for improving steering feeling in neutral gear position of vehicle |
| CN103863319B (en) * | 2012-12-12 | 2019-03-08 | 现代自动车株式会社 | For improving the system and method in the steering feeling of the neutral gear position of vehicle |
| CN103552601A (en) * | 2013-11-07 | 2014-02-05 | 邓平 | Hydraulic steering boosting system with automatic repair function and control method |
| CN103552601B (en) * | 2013-11-07 | 2016-04-13 | 邓平 | There is the fluid-link steering control method automatically remedying function |
| CN109070935A (en) * | 2016-03-04 | 2018-12-21 | 克诺尔商用车制动系统有限公司 | For keeping the device and method of the hydraulic pressure generated |
| CN108163049A (en) * | 2017-12-25 | 2018-06-15 | 北汽福田汽车股份有限公司 | For the servo steering system and hybrid electric vehicle of hybrid electric vehicle |
| CN112875516A (en) * | 2021-03-19 | 2021-06-01 | 安徽柳工起重机有限公司 | Emergency oil supply switching valve, oil supply system and automobile crane |
| CN115285217A (en) * | 2022-09-06 | 2022-11-04 | 一汽解放汽车有限公司 | Emergency steering power device of commercial vehicle and commercial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20101114 |