CN201660017U - Hydraulic motive power steering device with assistance regulated along with vehicle speed - Google Patents
Hydraulic motive power steering device with assistance regulated along with vehicle speed Download PDFInfo
- Publication number
- CN201660017U CN201660017U CN2009200440152U CN200920044015U CN201660017U CN 201660017 U CN201660017 U CN 201660017U CN 2009200440152 U CN2009200440152 U CN 2009200440152U CN 200920044015 U CN200920044015 U CN 200920044015U CN 201660017 U CN201660017 U CN 201660017U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- power steering
- speed
- oil
- steering device
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a hydraulic motive power steering device with the assistance regulated along with the vehicle speed, which relates to the field of vehicle operation. The utility model is provided with parallelly connected flow dividing oil paths capable of being controlled in real time at a constant flow type hydraulic motive power steering device (3) or a hydraulic oil pump (2) in a traditional constant flow type hydraulic motive power steering system oil path, a hydraulic oil kettle (1) provides oil sources for the hydraulic oil pump (2), and is a starting point of the whole hydraulic motive power steering system oil path, all hydraulic oil finally flows back to the hydraulic oil kettle (1), the flow dividing oil paths capable of being controlled in real time consists of electromagnetic valves (4), flow cut-off devices (5) and relevant connection pipelines, the electromagnetic valves (4) are controlled by an assistance control ECU (6) or are manually controlled by people. Thereby, the goals of providing greater assistance when an automobile is in a static state or a low-speed running state and providing smaller assistance when the automobile is in a high-speed running state can be realized, and the damping is smaller. The utility model is favorable for improving the operation stability of the high-speed automobile.
Description
Technical field
The utility model relates to the trailer reversing field, the hydraulic power steering device that particularly a kind of power-assisted is regulated with the speed of a motor vehicle.
Background technology
Hydraulic power steering device can alleviate the directional control labour intensity of chaufeur significantly when vehicle stationary or low speed driving, so it is being automobile, has particularly obtained on the large-tonnage automobile using widely.
And the current main-stream "constant flow" hydraulic power steering gear is power-assisted to be regulated along with the change of the speed of a motor vehicle, during galloping since the power-assisted of deflector not reduce when causing high speed steering on the bearing circle required steering effort with the increase of the speed of a motor vehicle too little, show as and turn to too sensitivity, particularly evident when automobile is unloaded; During steering reversal because deflector spool place exists high pressure to cause deflector to produce the bigger damping that turns in addition, and then influence the particularly return performance of automobile under the light condition of automobile, it is less to cause the road surface to feed back on the steering handwheel road feel simultaneously, and influences the driving safety of high-speed car.
And so-called EHPS, be that the electric-controlled hydraulic power steering can adopt the mode (PWM) of pulse duration modulation that the flow/pressure that flows into deflector is implemented control according to the variation of the speed of a motor vehicle, but the cost of deflector is increased considerably, and this deflector is now mainly used on medium-to-high grade car, and domestic large-tonnage vehicle is not almost equipped EHPS at present.
Summary of the invention
The utility model purpose is: provide that a kind of simple in structure, dependable performance, cost are low, long service life, big power-assisted can be provided when vehicle stationary or low speed driving and provide less power-assisted during galloping and the hydraulic power steering device of regulating with the speed of a motor vehicle of less system damping is arranged, to improve the high-speed handing stability of automobile.
The technical solution of the utility model is: at "constant flow" hydraulic power steering gear or hydraulic oil pump real-time controollable bleed off circuit in parallel is set in traditional permanent current formula hydraulic power steering system oil circuit; The hydraulic pressure oil can is the starting point of whole hydraulic power steering system oil circuit for hydraulic oil pump provides oil sources, and all hydraulic oil finally is back to the hydraulic pressure oil can, and the controollable bleed off circuit is made of electromagnetic valve, cut-off equipment and associated couplings pipeline in real time; Described electromagnetic valve is by power operated control ECU control or control manually.
The more detailed technical scheme of the utility model is: a kind of hydraulic power steering device of regulating with the speed of a motor vehicle is provided with connecting and disconnecting controollable bleed off circuit in parallel with respect to hydraulic power steering device or hydraulic oil pump in traditional permanent current formula hydraulic power steering system oil circuit; Electromagnetic valve, intercepting sewer and associated couplings pipeline that the controollable bleed off circuit is opened by normally closed energising constitute; The controollable bleed off circuit can manually be controlled according to the speed of a motor vehicle of automobile, or the controollable bleed off circuit is controlled in real time as the ECU operation electromagnetic valve of incoming signal in order to the speed of a motor vehicle.The incoming signal of power operated control ECU is car speed sensor input vehicle speed signal or engine speed sensor input engine rotational speed signal, and output signal is the electromagnetic valve switch signal.The controollable bleed off circuit is parallel to outside "constant flow" hydraulic power steering gear, the hydraulic oil pump in real time, or parallel connection is integrated on "constant flow" hydraulic power steering gear or the hydraulic oil pump.The controollable bleed off circuit can be 1 or many, when the controollable bleed off circuit is the n bar, and can be by setting 2 to power operated control ECU is corresponding in advance at the most
nThe individual speed of a motor vehicle is o'clock 2
nIn the speed of a motor vehicle section n bar controollable bleed off circuit electromagnetic valve is carried out combination control, and then realize the power-assisted of "constant flow" hydraulic power steering gear is carried out 2
nThe step control of level, each power-assisted classification speed of a motor vehicle point can be adjusted according to concrete use needs.
The bar number of above-mentioned controlled bleed off circuit and the damping of cut-off equipment, the i.e. gear of power operated control and how much definite according to deflector and the actual applying working condition coordination optimization of automobile.
The utility model advantage is:
1. the hydraulic power steering device that a kind of power-assisted provided by the utility model is regulated with the speed of a motor vehicle, big power-assisted can be provided when vehicle stationary or low speed driving and less power-assisted is provided during galloping, and damping is less, helps improving the road-holding property of high-speed car.
2. the hydraulic power steering device that a kind of power-assisted provided by the utility model is regulated with the speed of a motor vehicle can have hydraulic booster regulation and control flexibly such as manual control or automatic guidance to select according to the variation of automobile driving speed.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a principle of work scheme drawing of the present utility model, the hydraulic power steering device of regulating with the speed of a motor vehicle for the power-assisted of having only 1 controlled bleed off circuit among the figure, and the damping of cut-off equipment is less.
Wherein: 1 hydraulic pressure oil can; 2 hydraulic oil pumps; 3 hydraulic power steering devices; 4 electromagnetic valves; 5 throttling devices; 6 flow control ECU; 7 car speed sensors.
The specific embodiment
Embodiment: as shown in Figure 1, the hydraulic power steering device that a kind of power-assisted described in the utility model is regulated with the speed of a motor vehicle is provided with real-time controollable bleed off circuit in parallel with respect to "constant flow" hydraulic power steering gear (3) or hydraulic oil pump (2) in traditional permanent current formula hydraulic power steering system oil circuit; The controollable bleed off circuit can be parallel to outside "constant flow" hydraulic power steering gear (3) or the hydraulic oil pump (2) in real time, and also parallel connection is integrated on "constant flow" hydraulic power steering gear (3) or the hydraulic oil pump (2); The controollable bleed off circuit is made of electromagnetic valve (4), cut-off equipment (5) and the associated couplings pipeline of controlled normally closed energising unlatching in real time; The electromagnetic valve (4) that controlled normally closed energising is opened is by power operated control ECU (6) control or control manually; Incoming signal is car speed sensor (7) input vehicle speed signal or engine speed sensor input engine rotational speed signal, and output signal is the electromagnetic valve switch signal; If when setting the speed of a motor vehicle greater than 80km/h, power operated control ECU (6) then opens the electromagnetic valve (4) of the normally closed energising unlatching of real-time controollable bleed off circuit, the output of the power-assisted of hydraulic power steering device (3) is cancelled so, when the speed of a motor vehicle during less than 80km/h, power operated control ECU (6) closes the electromagnetic valve (4) of the normally closed energising unlatching of real-time controollable bleed off circuit, and the output of the power-assisted of hydraulic power steering device (3) is resumed so; Hydraulic power steering device (3) but power-assisted cancellation and the actual applying working condition coordination optimization of speed point automobile that recovers definite.
Claims (4)
1. the hydraulic power steering device that power-assisted is regulated with the speed of a motor vehicle is characterized in that: at "constant flow" hydraulic power steering gear (3) or hydraulic oil pump (2) real-time controollable bleed off circuit in parallel is set in traditional permanent current formula hydraulic power steering system oil circuit; Hydraulic pressure oil can (1) is the starting point of whole hydraulic power steering system oil circuit for hydraulic oil pump (2) provides oil sources, all hydraulic oil finally is back to hydraulic pressure oil can (1), and the controollable bleed off circuit is made of electromagnetic valve (4), cut-off equipment (5) and associated couplings pipeline in real time; Described electromagnetic valve (4) is by power operated control ECU (6) control or control manually.
2. according to the hydraulic power steering device of the described a kind of power-assisted of claim 1 with speed of a motor vehicle adjusting, it is characterized in that: described real-time controollable bleed off circuit is parallel to outside "constant flow" hydraulic power steering gear (3), the hydraulic oil pump (2), or parallel connection is integrated on "constant flow" hydraulic power steering gear (3) or the hydraulic oil pump (2).
3. the hydraulic power steering device of regulating with the speed of a motor vehicle according to claim 1 or 2 described a kind of power-assisteds, it is characterized in that: described real-time controollable bleed off circuit is 1 or many.
4. the hydraulic power steering device of regulating with the speed of a motor vehicle according to claim 1 or 2 described a kind of power-assisteds, it is characterized in that: the incoming signal of described power operated control ECU (6) is car speed sensor (7) input vehicle speed signal or engine speed sensor input engine rotational speed signal, and output signal is the electromagnetic valve switch signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200440152U CN201660017U (en) | 2009-06-15 | 2009-06-15 | Hydraulic motive power steering device with assistance regulated along with vehicle speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200440152U CN201660017U (en) | 2009-06-15 | 2009-06-15 | Hydraulic motive power steering device with assistance regulated along with vehicle speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201660017U true CN201660017U (en) | 2010-12-01 |
Family
ID=43230429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200440152U Expired - Fee Related CN201660017U (en) | 2009-06-15 | 2009-06-15 | Hydraulic motive power steering device with assistance regulated along with vehicle speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201660017U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267487A (en) * | 2011-05-11 | 2011-12-07 | 江苏大学 | Electro-hydraulic power steering system based on vehicle speed and load signal control |
| CN102556148A (en) * | 2010-12-08 | 2012-07-11 | 江苏罡阳动力转向器厂 | Vehicular electrically-controlled hydraulic power steering system |
| CN110435758A (en) * | 2018-05-02 | 2019-11-12 | 郑州宇通客车股份有限公司 | The adjusting method of wheel steering system, vehicle and power steering |
-
2009
- 2009-06-15 CN CN2009200440152U patent/CN201660017U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556148A (en) * | 2010-12-08 | 2012-07-11 | 江苏罡阳动力转向器厂 | Vehicular electrically-controlled hydraulic power steering system |
| CN102267487A (en) * | 2011-05-11 | 2011-12-07 | 江苏大学 | Electro-hydraulic power steering system based on vehicle speed and load signal control |
| CN102267487B (en) * | 2011-05-11 | 2012-11-07 | 江苏大学 | Electro-hydraulic power steering system based on vehicle speed and load signal control |
| CN110435758A (en) * | 2018-05-02 | 2019-11-12 | 郑州宇通客车股份有限公司 | The adjusting method of wheel steering system, vehicle and power steering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104554432B (en) | Engineering machine steer-by-wire system | |
| KR20170108995A (en) | Hydraulic control valve assembly of automatic steering system for agricultural machinery | |
| CN102501917B (en) | Electrically-controlled hydraulically-driven steering device for mobile platform of agricultural robot | |
| CN105351276B (en) | Turn round hydraulic control system, method and crane | |
| CN102530068A (en) | Power steering system | |
| CN103671364B (en) | Electrohydraulic control system is turned to for remote control loader | |
| CN104066641A (en) | Hydraulic steering device | |
| CN201660017U (en) | Hydraulic motive power steering device with assistance regulated along with vehicle speed | |
| CN203255243U (en) | Hybrid vehicle steering control device | |
| CN105667510A (en) | Control device and method for wheel type mechanical hydraulic travelling system | |
| US7510044B2 (en) | Power steering apparatus | |
| CN200964956Y (en) | Hydraulic pump set for automobile steering motor | |
| BG112612A (en) | Hydraulic control device | |
| CN203199027U (en) | Hydraulic transmission system of full-hydraulic drive crawler-type tractor | |
| CN105216861A (en) | Trac. hydrostatic power steering system is united | |
| WO2002002974A3 (en) | Valve control unit for a hydraulic elevator | |
| CN101554882B (en) | Mixed and closed-loop EPS control system | |
| CN209987991U (en) | Emergency steering system for engineering machinery | |
| CN110091916B (en) | Emergency steering system of engineering machinery | |
| CN205168620U (en) | Quiet hydrostatic steering system of tractor | |
| CN106438584B (en) | A kind of variable pressure and flow type hydraulic servomechanism and method of work based on electric machine speed regulation | |
| CN101450681B (en) | Numerical control hydraulic transmission multi-axle steering system | |
| CN201792896U (en) | Electric hydraulic power transmission system | |
| CN202448981U (en) | Control system for automotive power assembly | |
| CN104354760A (en) | Non-contact steering limited ratio control system and ratio control method |
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: 20101201 Termination date: 20120615 |