CN106882264A - A kind of automatically controlled variable-flow steering boost system - Google Patents
A kind of automatically controlled variable-flow steering boost system Download PDFInfo
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- CN106882264A CN106882264A CN201710199879.0A CN201710199879A CN106882264A CN 106882264 A CN106882264 A CN 106882264A CN 201710199879 A CN201710199879 A CN 201710199879A CN 106882264 A CN106882264 A CN 106882264A
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- steering
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- assisted
- oil
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Classifications
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- 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
-
- 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
- B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
-
- 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
- B62D5/10—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of power unit
- B62D5/12—Piston and cylinder
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The present invention relates to vehicle booster steering technique field, more particularly to a kind of automatically controlled variable-flow steering boost system, including gear pump, flow regulating unit, turn to adjustment unit and EHPS electronic control units, gear pump is by motor-driven rotation, motor is communicated to connect with EHPS electronic control units, the oil inlet of gear pump is connected with a fluid reservoir, the oil-out of gear pump is connected with adjustment unit is turned to, the piston type gear of flow regulating unit regulation gear pump and the length of action of fixed gear, regulation changes the size of power steering into the hydraulic oil flow for turning to adjustment unit.The system does not provide power-assisted when vehicle is kept straight on, and larger power-assisted is provided when vehicle low speed is turned to, and is easy to driver easily to operate steering wheel, and less power-assisted is provided when vehicle high-speed is turned to, and realizes driver-operated road feel.
Description
Technical field
The present invention relates to vehicle booster steering technique field, more particularly to a kind of automatically controlled variable-flow steering boost system.
Background technology
Wheel steering system can be divided into manual steering system and have servo steering system.
With development in science and technology and the use of new technology, there is servo steering system gradually by traditional hydraulic power-assisted steering
(HPS) (Hydraulic Power Steering) system is to electric hydraulic power-assisted steering (EHPS) (Electronic
Hydrautic Power Steering) system and electric power steering (EPS) (Etectronic Power Steering) system
System development.
When turning to, due to the friction on wheel and ground, weight on front axle can be up to thousands of newton, not have vehicle
May feel that comparing is heavy with steering wheel of rolling in the case of power-assisted, it is therefore desirable to take power-assisted steering to solve to turn to
Light sex chromosome mosaicism.
And with the increase of speed, wheel reduces with the frictional force on ground, in the case where identical power-assisted is provided, during high speed
Can make us feeling that steering wheel is unstable, in addition, when steering wheel high-speed rotation, easily appearance is serious delayed for power-assisted, therefore needs
To solve that steering wheel is unstable and power-assisted follows sex chromosome mosaicism using power-assisted regulation.
Traditional hydraulic power-assist steering system is worked using driven by engine steering pump, the flow and pressure of oil pump with
The rotating speed of engine is raised and increased when turning to, and hydraulic oil flows into one of cylinder, and an other cylinder then has one
Part oil backflow.Pressure differential is generated between such two cylinder, so as to produce power-assisted.If the flow and pressure of oil pump are higher, that
The power-assisted for producing is bigger.For the vehicle, speed is higher, and the rotating speed of engine is faster, the flow and pressure of such oil pump
Power will be bigger, and the corresponding power-assisted for producing is also bigger, and steering wheel is unstable when causing high speed, therefore, hydraulic power steering system
System needs control to enter the flow velocity of oil cylinder, and flow velocity should not be changed as the rotating speed of oil pump changes.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of automatically controlled variable-flow steering boost system, this is
System does not provide power-assisted when vehicle is kept straight on, and larger power-assisted is provided when vehicle low speed is turned to, and is easy to driver easily to operate
Steering wheel, less power-assisted is provided when vehicle high-speed is turned to, and realizes driver-operated road feel.
To achieve the above object, the present invention uses following technical scheme：
A kind of automatically controlled variable-flow steering boost system, including gear pump, flow regulating unit, steering adjustment unit and EHPS electronics
Control unit, by motor-driven rotation, motor is communicated to connect gear pump with EHPS electronic control units, the oil inlet of gear pump with
One fluid reservoir is connected, and the oil-out of gear pump is connected with adjustment unit is turned to, and flow regulating unit adjusts the piston type of gear pump
Gear and the length of action of fixed gear, adjust into the hydraulic oil flow for turning to adjustment unit to change the big of power steering
It is small.
Wherein, the flow regulating unit includes Flow-rate adjustment hydraulic cylinder, floating is provided with Flow-rate adjustment hydraulic cylinder and is lived
Flow-rate adjustment hydraulic cylinder is separated into left Flow-rate adjustment cylinder and right Flow-rate adjustment cylinder by plug, floating piston；The piston type tooth of gear pump
Wheel is arranged on floating piston, and a control device controls moving left and right for floating piston.
Wherein, regulation spring is provided with the left Flow-rate adjustment cylinder, regulation spring one end is connected with floating piston, another
End is resisted against on the inwall of left Flow-rate adjustment cylinder.
Wherein, the control device is control magnetic valve, and control magnetic valve is communicated to connect with EHPS electronic control units, control
Magnetic valve processed is 3 position-5 way magnetic valve, and control magnetic valve connects with left Flow-rate adjustment cylinder, right Flow-rate adjustment cylinder and fluid reservoir respectively
Connect, the oil-out of gear pump is connected by controlling magnetic valve with adjustment unit is turned to.
Wherein, the steering adjustment unit includes steering actuation cylinder, steering linkage and turns to distributing valve；In steering actuation cylinder
Boosting piston is provided with, steering actuation cylinder is divided into left power-assisted regulation cylinder and right power-assisted regulation cylinder by boosting piston；Steering linkage
It is arranged in steering actuation cylinder and two ends extends respectively to be connected with wheel steering section outside steering actuation cylinder；Boosting piston and steering
Pull bar is fixedly connected；Distributing valve is turned to be connected with control magnetic valve；Turn to distributing valve and adjust cylinder and right power-assisted with left power-assisted respectively
Regulation cylinder connection；Distributing valve is turned to be connected with fluid reservoir.
Wherein, it is described steering distributing valve by oil inlet pipe with control magnetic valve be connected, turn to distributing valve pass through oil return pipe and
Fluid reservoir is connected, and bypass pipe is provided between oil inlet pipe and oil return pipe, and limited valve is set on bypass pipe.
The present invention has the advantages that：
1st, when its straight line is travelled, gear pump is in the minimum position of engagement to the present invention, and hydraulic oil flow is minimum, does not provide and helps
Power.
2nd, the present invention is in vehicle low speed Turning travel, the piston type gear of gear pump and the length of action of fixed gear by
Cumulative to add, hydraulic oil flow also gradually increases, until increase to the maximum power-assisted needed for turning to, for Vehicular turn provides maximum
Power steering, solves in the case of non helping hand or small power-assisted, and steering wheel heavy problem during manual steering wheel rotation is easy to drive
The operation of the person of sailing, for operation of the driver in low speed Turning travel provides portability.
3rd, it is of the invention in vehicle high-speed Turning travel, in order to meet road feel during driver's scorch so that gear
The piston type gear of pump is gradually reduced with the length of action of fixed gear, and hydraulic oil flow is also gradually reduced, and power steering is gradually
Reduce, thus driver in high speed steering mobility operation, it is necessary to larger steering force, realizes the road feel of scorch.
Brief description of the drawings
Fig. 1 is configuration state schematic diagram of the present invention in straight-line travelling；
Fig. 2 is configuration state schematic diagram of the present invention in low speed Turning travel；
Fig. 3 is configuration state schematic diagram of the present invention when high speed steering is travelled.
Description of reference numerals：
1- flow regulating units, 11- Flow-rate adjustments hydraulic cylinder, 111- floating pistons, the left Flow-rate adjustment cylinders of 112-, the right flows of 113-
Regulation cylinder, 114- regulations spring, 12- gear pumps, 121- fixed gears, 122- piston types gear, 13- controls magnetic valve, 2- turn
Turn to adjustment unit, 21- steering actuation cylinders, 211- boosting pistons, the left power-assisted regulation cylinders of 212-, the right power-assisted regulation cylinders of 213-, 22-
Distributing valve, 3-EHPS electronic control units, 31-ECU electronic control units, 4- motors, 5- fluid reservoirs, 6- are turned to pull bar, 23-
Pressure limiting valve, the oil inlet pipes of 101- first, the left Flow-rate adjustment oil pipes of 102-, the right Flow-rate adjustment oil pipes of 103-, the oil return pipes of 104- first,
The left power-assisted regulation oil pipe of the oil inlet pipes of 105- second, 106-, the right power-assisted regulation oil pipes of 107-, the oil return pipes of 108- second, 109- bypass
Pipe.
Specific embodiment
The present invention is described in further details below in conjunction with the drawings and specific embodiments：
Referring to Fig. 1 to Fig. 3, a kind of automatically controlled variable-flow steering boost system, including gear pump 12, flow regulating unit 1, steering tune
Section unit 2 and EHPS electronic control units 3；
The flow regulating unit 1 includes Flow-rate adjustment hydraulic cylinder 11 and control magnetic valve 13；
Floating piston 111 is provided with the Flow-rate adjustment hydraulic cylinder 11, floating piston 111 separates Flow-rate adjustment hydraulic cylinder 11
Into left Flow-rate adjustment cylinder 112 and right Flow-rate adjustment cylinder 113；Regulation spring 114 is provided with left Flow-rate adjustment cylinder 112, bullet is adjusted
The one end of spring 114 is connected with floating piston 111, and the other end is resisted against on the inwall of left Flow-rate adjustment cylinder 112；
The gear pump 12 includes intermeshing fixed gear 121 and piston type gear 122, and fixed gear 121 is by a motor 4
Drive and rotate；Piston type gear 122 is arranged on floating piston 111 by a rotary shaft, and floating piston 111 is by a control dress
It is moved left and right so that the length of action of regulating piston formula gear 122 and fixed gear 121 to put control；The oil inlet of gear pump 12
It is connected with a fluid reservoir 5, the oil-out of gear pump 12 is connected by the first oil inlet pipe 101 with control magnetic valve 13；
The control device is control magnetic valve 13, and in the present embodiment, the control magnetic valve 13 is 3 position-5 way magnetic valve；Control
Magnetic valve processed 13 is respectively by left Flow-rate adjustment oil pipe 102 and right Flow-rate adjustment oil pipe 103 and left Flow-rate adjustment cylinder 112 and right stream
Amount regulation cylinder 113 is connected；Control magnetic valve 13 is connected by the first oil return pipe 104 with fluid reservoir 5；
The steering adjustment unit 2 includes steering actuation cylinder 21, steering linkage 22 and turns to distributing valve 23；
Boosting piston 211 is provided with the steering actuation cylinder 21, steering actuation cylinder 21 is divided into left power-assisted by boosting piston 211
Regulation cylinder 212 and right power-assisted regulation cylinder 213；Steering linkage 22 is arranged at steering and helps parallel to the length direction of steering actuation cylinder 21
In power cylinder 21, and two ends extend respectively to be connected with wheel steering section outside steering actuation cylinder 21, to adjust the steering of wheel；Power-assisted
Piston 211 is fixedly connected on the middle part of steering linkage 22；
The steering distributing valve 23 is connected by the second oil inlet pipe 105 with control magnetic valve 13；Distributing valve 23 is turned to pass through respectively
Left power-assisted regulation oil pipe 106 and right power-assisted regulation oil pipe 107 adjust cylinder 212 with left power-assisted and right power-assisted regulation cylinder 213 is connected；Turn
It is connected with fluid reservoir 5 by the second oil return pipe 108 to distributing valve 23；
Bypass pipe 109 is provided between the oil return pipe 108 of second oil inlet pipe 105 and second, is provided with the bypass pipe 109
Pressure limiting valve 6, for limit diverted distributing valve 23 flow into steering actuation cylinder 21 oily pressure it is excessive.
The EHPS electronic control units 3 include ECU electronic control units 31, vehicle speed sensor and torque sensor, ECU
Electronic control unit 31 is communicated to connect with vehicle speed sensor, torque sensor and motor 4 respectively, and vehicle speed sensor is used for detecting car
The vehicle speed data of detection is simultaneously fed back to ECU electronic control units 31 by the speed of speed, and torque sensor is used to detect steering wheel
Steering angle simultaneously will turn to data feedback to ECU electronic control units 31, ECU electronic control units 31 receive vehicle speed sensor and
The signal that torque sensor sends, gives control magnetic valve 13 and motor 4, to control electricity by sending corresponding electric signal after conversion
The opening and closing of the speed and control magnetic valve 13 of the rotating speed of machine 4.
The workflow of said system is as follows：
When its straight line is travelled, referring to Fig. 1, ECU electronic control units 31 receive vehicle speed sensor and torque sensor is sent
Signal and be converted into corresponding electric signal and be sent to controlled motor 4 and control magnetic valve 13, now fixed gear 121 and piston type
The length of action of gear 122 is in minimum value, controls the valve element of magnetic valve 13 in an intermediate position, the first oil inlet pipe 101 and the
Two oil inlet pipes 105 are connected, and left Flow-rate adjustment oil pipe 102 and right Flow-rate adjustment oil pipe 103 are not connected with control magnetic valve 13；The
Two oil inlet pipes 105 adjust oil pipe 106 with left power-assisted respectively and right power-assisted regulation oil pipe 107 is connected, and turn to distributing valve 23 by the
Two oil return pipes 108 are connected with fluid reservoir 5；
Motor 4 is rotated and drives fixed gear 121 to rotate, and fixed gear 121 drives piston type gear 122 to rotate, by fluid reservoir 5
Oil pump send out, hydraulic oil passes sequentially through the oil inlet of gear pump 12, oil-out and the first oil inlet pipe 101 and flows into control electromagnetism
Valve 13, is flowed into through the second oil inlet pipe 105 and turns to distributing valve 23, and oil pipe 106 and right power-assisted 107 points of oil pipe of regulation are adjusted through left power-assisted
Cylinder 212 and right power-assisted regulation cylinder 213 Liu Ru not be adjusted respectively filled with left power-assisted, now the pressure of two cylinders in steering actuation cylinder 21
Equal, because gear pump 12 is in the minimum position of engagement, hydraulic oil flow is minimum, does not produce power-assisted, reduces when vehicle is travelled
Oil consumption；After hydraulic oil adjusts cylinder 212 and right power-assisted regulation cylinder 213 full of left power-assisted, fluid reservoir 5 is flowed back to through the second oil return pipe 108.
When vehicle low speed Turning travel, referring to Fig. 2, ECU electronic control units 31 receive vehicle speed sensor and moment of torsion is passed
Signal that sensor is sent simultaneously is converted into corresponding electric signal and is sent to control magnetic valve 13, now controls the valve element of magnetic valve 13 to the right
Mobile, the first oil inlet pipe 101 is connected with the second oil inlet pipe 105 and right Flow-rate adjustment oil pipe 103 respectively；Second oil inlet pipe 105 connects
Logical left power-assisted regulation oil pipe 106 or right power-assisted regulation oil pipe 107, turn to distributing valve 23 and connect storage by the second oil return pipe 108
Flow container 5；
Now illustrated by taking the left power-assisted regulation oil pipe 106 that the connection of the second oil inlet pipe 105 turns to distributing valve 23 as an example：
Motor 4 is rotated and drives fixed gear 121 to rotate, and fixed gear 121 drives piston type gear 122 to rotate, by fluid reservoir 5
Oil pump send out, hydraulic oil passes sequentially through the oil inlet of gear pump 12, oil-out and the first oil inlet pipe 101 and flows into control electromagnetism
Valve 13, flows into through the second oil inlet pipe 105 and turns to distributing valve 23, meanwhile, oil flows into right Flow-rate adjustment through right Flow-rate adjustment oil pipe 103
Cylinder 113, promotes floating piston 111 to overcome the pressure of regulation spring 114 to be moved to the left and reverse compression regulation spring 114, so that
Drive piston type gear 122 to be moved to the left, gradually increase the length of action of piston type gear 122 and fixed gear 121, gradually increase
Canine tooth wheel pump 12 pumps the flow of hydraulic oil to distributing valve 23 is turned to, until the need for meeting the maximum power-assisted of steering；
Hydraulic oil flows into left power-assisted regulation cylinder 212 through left power-assisted regulation oil pipe 106, promotes boosting piston 211 to move to right, boosting piston
211 pulling steering linkages 22 provide power-assisted for wheel steering, and the oil in right power-assisted regulation cylinder 213 adjusts oil pipe 107 through right power-assisted
Steering distributing valve 23 is flowed back to, is then flowed back in fluid reservoir 5 through the second oil return pipe 108.Due to gear pump 12 length of action gradually
Increase, the hydraulic oil flow for flowing into the oil cylinder of the side of steering actuation cylinder 21 also gradually increases, for the power-assisted that wheel steering is provided
Gradually increase, until providing the maximum power-assisted run at a low speed needed for turning to, be easy to driver to operate steering wheel, realize that operation is light
Property.
If the need for the pressure of hydraulic oil flow exceeds the maximum power-assisted of steering, now pressure limiting valve 6 will be opened, part liquid
Power oil is flowed into the second oil return pipe 108 from pressure limiting valve 6, so as to flow back in fluid reservoir 5.
When vehicle high-speed Turning travel, referring to Fig. 3, ECU electronic control units 31 receive vehicle speed sensor and moment of torsion is passed
Signal that sensor is sent simultaneously is converted into corresponding electric signal and is sent to control magnetic valve 13, now controls the valve element of magnetic valve 13 to the left
Mobile, the first oil inlet pipe 101 is connected with the second oil inlet pipe 105 and left Flow-rate adjustment oil pipe 102 respectively, right Flow-rate adjustment oil pipe
103 are connected by controlling the hollow oil pocket of the valve element of magnetic valve 13 with the first oil return pipe 104；Second oil inlet pipe 105 connects a left side and helps
Power adjusts oil pipe 106 or right power-assisted regulation oil pipe 107, turns to distributing valve 23 and connects fluid reservoir 5 by the second oil return pipe 108；
Now illustrated by taking the left power-assisted regulation oil pipe 106 that the connection of the second oil inlet pipe 105 turns to distributing valve 23 as an example：
Motor 4 is rotated and drives fixed gear 121 to rotate, and fixed gear 121 drives piston type gear 122 to rotate, by fluid reservoir 5
Oil pump send out, hydraulic oil passes sequentially through the oil inlet of gear pump 12, oil-out and the first oil inlet pipe 101 and flows into control electromagnetism
Valve 13, flows into through the second oil inlet pipe 105 and turns to distributing valve 23, meanwhile, oil flows into left Flow-rate adjustment through left Flow-rate adjustment oil pipe 102
The elastic force of cylinder 112, oil pressure and regulation spring 114 promotes floating piston 111 to move right jointly, so as to drive piston type gear
122 move right, and gradually decrease the length of action of piston type gear 122 and fixed gear 121, be gradually reduced gear pump 12 to turn
The flow of oil is pumped to distributing valve 23；Oil in right Flow-rate adjustment cylinder 113 is through right Flow-rate adjustment oil pipe 103, control magnetic valve 13
Valve element hollow oil pocket and the first oil return pipe 104 flow back to fluid reservoir 5；
The hydraulic oil for flowing into steering distributing valve 23 flows into left power-assisted regulation cylinder 212 through left power-assisted regulation oil pipe 106, promotes power-assisted to live
Plug 211 is moved to right, and now because the length of action of gear pump 12 is gradually reduced, hydraulic oil flow is also gradually decreased, power steering
It is gradually reduced, now driver needs larger steering force, realizes road feel during scorch；Right power-assisted adjusts cylinder 213
Interior hydraulic oil flows back to steering distributing valve 23 through right power-assisted regulation oil pipe 107, is then flowed back in fluid reservoir 5 through the second oil return pipe 108.
Specific embodiment of the invention is the foregoing is only, the scope of the claims of the invention, every profit is not thereby limited
The equivalent structure transformation made with description of the invention and accompanying drawing content, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (6)
1. a kind of automatically controlled variable-flow steering boost system, it is characterised in that：Including gear pump（12）, flow regulating unit（1）, turn
To adjustment unit（2）With EHPS electronic control units（3）, gear pump（12）By motor（4）Drive and rotate, motor（4）With EHPS
Electronic control unit（3）Communication connection, gear pump（12）Oil inlet and a fluid reservoir（5）It is connected, gear pump（12）It is fuel-displaced
Mouth and steering adjustment unit（2）Connection, flow regulating unit（1）Regulation gear pump（12）Piston type gear（122）With fixation
Gear（121）Length of action, regulation enter turn to adjustment unit（2）Hydraulic oil flow change the size of power steering.
2. automatically controlled variable-flow steering boost system according to claim 1, it is characterised in that：The flow regulating unit
（1）Including Flow-rate adjustment hydraulic cylinder（11）, Flow-rate adjustment hydraulic cylinder（11）Inside it is provided with floating piston（111）, floating piston
（111）By Flow-rate adjustment hydraulic cylinder（11）It is separated into left Flow-rate adjustment cylinder（112）With right Flow-rate adjustment cylinder（113）；Gear pump
（12）Piston type gear（122）Installed in floating piston（111）On, control device control floating piston（111）Left and right
It is mobile.
3. automatically controlled variable-flow steering boost system according to claim 2, it is characterised in that：The left Flow-rate adjustment cylinder
（112）Inside it is provided with regulation spring（114）, adjust spring（114）One end and floating piston（111）Connection, the other end is resisted against
Left Flow-rate adjustment cylinder（112）Inwall on.
4. automatically controlled variable-flow steering boost system according to claim 2, it is characterised in that：The control device is control
Magnetic valve（13）, control magnetic valve（13）With EHPS electronic control units（3）Communication connection, controls magnetic valve（13）It is three five
Three-way electromagnetic valve, controls magnetic valve（13）Respectively with left Flow-rate adjustment cylinder（112）, right Flow-rate adjustment cylinder（113）And fluid reservoir（5）Even
Connect, gear pump（12）Oil-out by controlling magnetic valve（13）With steering adjustment unit（2）Connection.
5. automatically controlled variable-flow steering boost system according to claim 1, it is characterised in that：The steering adjustment unit
（2）Including steering actuation cylinder（21）, steering linkage（22）With steering distributing valve（23）；Steering actuation cylinder（21）Inside it is provided with power-assisted
Piston（211）, boosting piston（211）By steering actuation cylinder（21）It is divided into left power-assisted regulation cylinder（212）Cylinder is adjusted with right power-assisted
（213）；Steering linkage（22）It is arranged at steering actuation cylinder（21）It is interior and two ends extend respectively to steering actuation cylinder（21）Outward and car
Wheel knuckle connection；Boosting piston（211）With steering linkage（22）It is fixedly connected；Turn to distributing valve（23）With control magnetic valve
（13）Connection；Turn to distributing valve（23）Respectively cylinder is adjusted with left power-assisted（212）Cylinder is adjusted with right power-assisted（213）Connection；Turn to and divide
With valve（23）With fluid reservoir（5）Connection.
6. automatically controlled variable-flow steering boost system according to claim 5, it is characterised in that：The steering distributing valve（23）
By oil inlet pipe（105）With control magnetic valve（13）Connection, turns to distributing valve（23）By oil return pipe（108）With fluid reservoir（5）
Connection, oil inlet pipe（105）With oil return pipe（108）Between be provided with bypass pipe（109）, bypass pipe（109）Upper setting limited valve
（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199879.0A CN106882264B (en) | 2017-03-30 | 2017-03-30 | Electric control variable flow steering power assisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199879.0A CN106882264B (en) | 2017-03-30 | 2017-03-30 | Electric control variable flow steering power assisting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106882264A true CN106882264A (en) | 2017-06-23 |
| CN106882264B CN106882264B (en) | 2023-05-02 |
Family
ID=59181205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710199879.0A Active CN106882264B (en) | 2017-03-30 | 2017-03-30 | Electric control variable flow steering power assisting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106882264B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955897A (en) * | 2019-03-11 | 2019-07-02 | 河南交通职业技术学院 | Hydraulic control system for intelligent mobile vehicle |
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| CN104742962A (en) * | 2015-03-30 | 2015-07-01 | 芜湖德孚转向系统有限公司 | Electric hydraulic power steering control method |
| CN206589954U (en) * | 2017-03-30 | 2017-10-27 | 福建船政交通职业学院 | A kind of automatically controlled variable-flow steering boost system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955897A (en) * | 2019-03-11 | 2019-07-02 | 河南交通职业技术学院 | Hydraulic control system for intelligent mobile vehicle |
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