CN101108631A - Electrohydraulic power steering pump - Google Patents
Electrohydraulic power steering pump Download PDFInfo
- Publication number
- CN101108631A CN101108631A CNA2006100860022A CN200610086002A CN101108631A CN 101108631 A CN101108631 A CN 101108631A CN A2006100860022 A CNA2006100860022 A CN A2006100860022A CN 200610086002 A CN200610086002 A CN 200610086002A CN 101108631 A CN101108631 A CN 101108631A
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- pump
- oil pump
- valve
- power steering
- steering
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Abstract
The invention relates to the oil pump technology field, in particular to a vehicle steering oil pump used in the vehicle hydraulic steering propellant system. The invention additionally arranges an electromagnetic proportion valve at the outlet of the common hydraulic steering oil pump to form a novel monolithic electrohydraulic propellant pump. The invention is formed by that the original steering oil pump is additionally arranged with an electromagnetic proportion valve and an electronic controller (CPU) outside. The invention provides a vehicle steering oil pump with novel structure which can gradually reduce the output flow of the oil pump with the increase of the velocity during using to gradually increase the steering force of the steering wheel to make the drivers never feel floating.
Description
Technical field
The present invention relates to oil pump technology field, particularly a kind of motor turning oil pump that is used for the automobile hydraulic power-assisted steering system.
Prior art
The automobile power steering oil pump is the dynamical element that provides hydraulic pressure can change and recover vehicle traveling direction to hydraulic power steering device in the automotive steering, and it serves as that basic combine valve in conjunction with pressure-gradient control valve-flow-controlling gate forms with traditional blade-type pump technology.The hydraulic power-assisted steering system that is used for automobile steering system at present comprises hydraulic steering gear, power steerig pump, steering oil reservoir etc.Existing motor turning oil pump all is the hydraulic oil pump of constant current amount, and what can provide that enough pressure and flow solve automobile turns to the weight problem; But when the speed of a motor vehicle increased, it can't resolve vehicle steering and feels to kick the beam and " unstable " problem; A kind of novel steering oil pump is also arranged, it can make the flow of power steerig pump output progressively reduce with engine speed rising delivery rate, but can not guarantee that this power steerig pump can both guarantee when the speed of a motor vehicle is high that engine speed is all high during owing to running car, so it still can not thoroughly solve " unstable " problem of running at high speed.The triumphant lucky automobile fitting Co., Ltd design-calculated in Yiwu " motor turning oil pump " (number of patent application: 03210453.7), this invention motor turning oil pump is compared with existing motor turning oil pump, having in use can the constant output flow, can control the characteristics of steering swivel system top pressure, but, fundamentally do not solve the problem of " unstable " of galloping.Baodi Automobile Parts Mfg. Co. Ltd., Jilin Prov.'s design-calculated " manufacturing process of aluminium alloy power steering oil pump and product " (number of patent application: 200510016998.5), this invention provides a kind of manufacturing process of aluminium alloy power steering oil pump, with aluminum alloy as manufactured materials, its purpose be intended to solve easy ablation, weight that the power steering oil pump of medium and heavy truck exists big, wear no resistance, defective such as the life-span is low, it still can't solve " unstable " problem of galloping.
The purpose of invention
The present invention is directed to existing motor turning oil pump in use existing when automobile speed increases steering resisting torque reduce, cause that vehicle steering is too light, sensation problems such as " unstable ".Thereby provide a kind of in use can the raising reduce oil pump delivery rate the turning to hand-power, make chaufeur no longer feel the motor turning oil pump of the new structure of " unstable " of augment direction dish gradually gradually with the speed of a motor vehicle.
Summary of the invention and technical scheme
The present invention realizes goal of the invention like this.
Install an electromagnetic proportional valve additional in common fluid-link steering oil pump exit, constituted a later-model integral type electricity liquid power-assisted oil pump.It is to install an electromagnetic proportional valve additional by former power steerig pump, adds electronic controller (CPU) and forms.The fluid-link steering oil pump can be vane oil pump, geared oil pump, roller oil pump, plunger fuel pump etc.; Last original pressure-gradient control valve of pump housing I and flow-controlling gate are constant, and original oil pump basic structure is constant.The place is equipped with electromagnetic valve body II at pump housing I oil outlet, be provided with electromagnet, electromagnetic valve push rod and valve rod in the valve body II, the electromagnetic valve push rod is that rigidity connects (also can be designed to one) with valve rod, the other end of valve rod is designed to the varied cross section form, it is little that varied cross section is designed to big the inner, outer end, and pump housing I oil duct is provided with throttling device, the coaxial throttling cutting edge that passes of valve rod, the restriction that works is to be formed by the annular cross section between valve rod and the throttling cutting edge, and hydraulic oil is exported by restriction; Electromagnetic valve is adjusted the axial location of valve rod under the control that adds controller (CPU), thereby changed the relative position of varied cross section in restriction on the valve rod, feasible hydraulic fluid flow rate by restriction changes, and the flow that it can adjust oil pump reduces with speed of a motor vehicle increase.
Electromagnetic proportional valve is by valve body, coil, and push rod (valve rod) is formed.Electromagnetic proportional valve install angle and direction can be any direction.It can be cone valve, plane valve, ball valve etc. that the valve rod of electromagnetic proportional valve changes; The Dong Zuo of valve rod is with the Blade mouth can be an any direction.The shape of magnet coil can be a shape such as circular, square; This electrohydraulic power steering pump can use on the vehicle of all installation hydraulic power steerings such as car, utility van, picking-up vehicle, Light-duty Vehicle, in-between car, heavy goods vehicles.
The effect of invention
The present invention's " electrohydraulic power steering pump " will be controlled by the controller that adds (CPU), increase with automobile speed, the output liquid flow of electricity liquid oil pump reduces according to certain rules gradually, realized the speed of a motor vehicle high more turn to heavy more, the power of automobile chaufeur sensation steering dish when the raising speed of a motor vehicle is travelled is increased gradually, thereby improved the road-holding property of automobile, made when running at high speed bearing circle no longer " unstable ".
Description of drawings:
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the auspicious figure of one embodiment of the present of invention;
Accompanying drawing 3 is A-A cutaway views of accompanying drawing 2.
1 is power steerig pump in the accompanying drawing, the 2nd, and electromagnetic proportional valve, the 3rd, the flow rate pressure control cock of power steerig pump, the 4th, the valve body of electromagnetic proportional valve, the 5th, solenoid-operated proportional valve push rod, the 6th, oil outlet, the 7th, electromagnet, the 8th, valve rod, the 9th, valve rod varied cross section, the 10th, pressure-gradient control valve, the 11st, flow-controlling gate, the 12nd, pump housing I, the 13rd, join oil export, the 14th, restriction, the 15th, valve body II, the 16th, oil outlet, the 17th, oil inlet, the 18th, oil pump input media, the 19th, pump body, the 20th, oil distribution casing, the 21st, rotor, the 22nd, blade, the 23rd, stator, the 24th, pump cover, the 25th, pump shaft.
Embodiment
The oil feed pump of the embodiment of the invention is a blade-type pump, installs the apportioning valve (2) of an electromagnetic control on common fluid-link steering oil pump additional, has constituted a later-model integral type electricity liquid power-assisted oil pump.It is by pump body (20), electromagnetic proportional valve (2), and flow rate pressure control cock (3) adds electronic controller (CPU) and forms.Fluid-link steering oil pump (1) can be vane oil pump, geared oil pump, roller oil pump, plunger fuel pump etc.; Be at former hydraulic pressure power steerig pump outlet, the apportioning valve (2) of an electromagnetic control of direct mount.
Pump body I (13) is provided with pressure-gradient control valve and flow-controlling gate (3), electromagnetic valve body II (16) is installed in the oil pump exit, valve body II (16) electromagnet valve push rod (5) and valve rod (8), the electromagnetic valve push rod is that rigidity connects (also can be designed to one) with valve rod, the other end of valve rod (8) is designed to varied cross section form (10), that varied cross section (10) is designed to is inner big, the outer end is little, be provided with restriction (15) in the pump body I (13), restriction (15) and the coaxial setting of valve rod (8); Hydraulic oil is supplied to oil pump by oil inlet (18), and the hydraulic oil of oil pump output enters oil outlet (17) chamber by oil distribution casing (21); Utilize electromagnetic proportional valve (2) to adjust the axial location of valve rod (8), go up the relative position of varied cross section (10) in restriction (15), make the flow of restriction (15) hydraulic oil change thereby adjusted valve rod (8).Influencing controller (CPU) by car speed sensor directly adjusts the delivery rate of oil pump and changes with the speed of a motor vehicle.
Electromagnetic proportional valve install angle and direction can be any direction.The valve rod varied cross section can be taper, planar shaped, sphere etc.; The direction of action of spool and cutting edge can be any directions.The shape of magnet coil can be a shape such as circular, square; This electrohydraulic power steering pump can use on the vehicle of all installation hydraulic power steerings such as car, utility van, picking-up vehicle, Light-duty Vehicle, in-between car, heavy goods vehicles.
The present invention is simple and reasonable for structure, the power of automobile chaufeur sensation steering dish when the raising speed of a motor vehicle is travelled is increased gradually, thereby increased vehicle handling stability.
Claims (6)
1. an electrohydraulic power steering pump is made up of common power steerig pump etc., it is characterized in that common fluid-link steering oil pump exit installs an electromagnetic proportional valve additional, constituted a later-model integral type electrohydraulic power steering pump, it is to install an electromagnetic proportional valve additional by former power steerig pump, adds electronic controller (CPU) and forms.
2. according to the described electrohydraulic power steering pump of claim 1, it is characterized in that being provided with in the solenoid-operated proportional valve body electromagnet, electromagnetic valve push rod (valve rod); The other end of valve rod is designed to the varied cross section form, and varied cross section is designed to that big the inner, outer end is little, and pump housing oil duct is provided with throttling device, the coaxial throttling cutting edge that passes of valve rod, and the restriction that works is to be formed by the annular cross section between valve rod and the throttling cutting edge.
3. according to claim 1 and 2 described electrohydraulic power steering pumps, it is characterized in that electromagnetic valve push rod and valve rod can be designed to one, also can be that rigidity connects.
4. according to claim 1 and 2 described electrohydraulic power steering pumps, it is characterized in that the apportioning valve valve rod varied cross section part of electromagnetic control can be designed to taper, planar shaped, sphere; The direction of action of spool and cutting edge can be any directions.
5. according to the described electrohydraulic power steering pump of claim 1, it is characterized in that described power steerig pump can be vane oil pump, geared oil pump, roller oil pump, plunger fuel pump.
6. according to the described electrohydraulic power steering pump of claim 1, it is characterized in that described electromagnetic proportional valve installs angle and direction can be any direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100860022A CN101108631A (en) | 2006-07-18 | 2006-07-18 | Electrohydraulic power steering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100860022A CN101108631A (en) | 2006-07-18 | 2006-07-18 | Electrohydraulic power steering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101108631A true CN101108631A (en) | 2008-01-23 |
Family
ID=39040944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100860022A Pending CN101108631A (en) | 2006-07-18 | 2006-07-18 | Electrohydraulic power steering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101108631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448792A (en) * | 2013-08-30 | 2013-12-18 | 郑州宇通客车股份有限公司 | Dual drive power-assisted steering system and control method for hybrid electric vehicle |
| CN104118473A (en) * | 2014-07-14 | 2014-10-29 | 阜新德尔汽车部件股份有限公司 | Electric hydraulic pump for vehicle power steering |
-
2006
- 2006-07-18 CN CNA2006100860022A patent/CN101108631A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448792A (en) * | 2013-08-30 | 2013-12-18 | 郑州宇通客车股份有限公司 | Dual drive power-assisted steering system and control method for hybrid electric vehicle |
| CN104118473A (en) * | 2014-07-14 | 2014-10-29 | 阜新德尔汽车部件股份有限公司 | Electric hydraulic pump for vehicle power steering |
| CN104118473B (en) * | 2014-07-14 | 2016-04-20 | 阜新德尔汽车部件股份有限公司 | Vehicle power steering electricity consumption liquid pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |