WO2011054186A1 - 一种液压转向控制阀及一种逆向自锁转向*** - Google Patents
一种液压转向控制阀及一种逆向自锁转向*** Download PDFInfo
- Publication number
- WO2011054186A1 WO2011054186A1 PCT/CN2010/001767 CN2010001767W WO2011054186A1 WO 2011054186 A1 WO2011054186 A1 WO 2011054186A1 CN 2010001767 W CN2010001767 W CN 2010001767W WO 2011054186 A1 WO2011054186 A1 WO 2011054186A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steering
- hydraulic
- control valve
- steering control
- steering system
- Prior art date
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
- B62D5/08—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 steering valve used
- B62D5/087—Sliding spool valves
-
- 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
- B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
- B62D5/24—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for worm type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
- F15B9/12—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing
Definitions
- the invention relates to the technical field of automobile steering mechanisms, and specifically relates to a hydraulic steering control valve and a reverse self-locking steering system.
- the car steering system is a special mechanism for changing or maintaining the direction of the car. It relates to the steering stability and safety of the car.
- the car steering system can be divided into two categories: mechanical steering system and power steering system.
- the mechanical steering gear is the core component, supplemented by steering wheel, steering shaft, universal joint and linkage mechanism (steering horizontal tie rods, etc.).
- the power steering system is further divided into a hydraulic power steering system and an electric power steering system.
- the hydraulic power steering system is composed of a mechanical steering gear, a steering oil pump, a steering control valve and a steering power cylinder.
- the electric power steering system is a machine
- the DC motor and the servo I mechanism are the core components.
- the damping effect of the buffer cylinder is limited.
- the steering mechanism of the car will cause serious steering wheel recoil, which may even cause the driver to disengage in an instant, because the driver reacts to the direction for 0.5 seconds. Lag time, therefore, the driver can not stop the direction yaw caused by the unexpected resistance of the steering wheel, which seriously affects the driving safety.
- the automatic returning technology is the basic function and technical requirement of the steering system.
- the automatic return refers to the description of the steering system automatically returning to the straight running state after the driver turns to remove the steering torque and relax the steering wheel control.
- the force of the wheel causes the steering mechanism to rotate automatically (the driver does not need to apply the turning force). Therefore, the prior art steering system has no reverse self-locking effect.
- the core component steering control valve is driven or driven in a straight line. When the steering operation is stopped, the steering control valve spool is in the middle position, and the oil passage on the spool will connect the oil cylinders on both sides of the power cylinder to the low pressure oil circuit (oil storage pot), and the steering cylinder piston can be freely displaced, which is automatic for the steering wheel.
- the assist drive motor is also only operated when the driver performs the steering operation. Turning the power, the motor or the assisting mechanism does not have a self-locking function when stopping the steering, and maintains the automatic return function of the steering system.
- the prior art steering system has defects due to the non-reverse self-locking function.
- the driver has a reaction lag of 0.5 seconds for the steering wheel recoil, and the direction yaw will be unavoidable, seriously affecting the driving.
- Safety How to realize the reverse self-locking function of the steering system while maintaining the automatic return function of the steering system, block the backlash of the steering wheel when the steering wheel suffers from unexpected resistance, and avoid the yaw caused by the external force caused by the steering wheel. It is a research topic for improvement and upgrade of steering system technology.
- the invention provides a hydraulic steering control valve and a reverse self-locking steering system, and has a reverse self-locking function by a hydraulic steering control valve and a steering power cylinder or a hydraulic shock absorbing component combined with a special design scheme of the prior art steering system.
- the steering system solves the technical problems and defects of the prior art steering system.
- the invention relates to a hydraulic steering control valve.
- the hydraulic steering control valve spool When the vehicle is traveling straight or maintaining a steering angle, that is, the hydraulic steering control valve spool is in an intermediate position, the spool simultaneously cuts off the steering cylinder or hydraulic shock absorption.
- the hydraulic circuit of the oil cylinder on both sides of the component, the steering power cylinder or the hydraulic shock absorbing component piston can not be displaced; the hydraulic steering control valve input shaft end is provided with an automatic returning mechanism, after the driver removes the steering torque and relaxes the steering wheel control, the automatic returning mechanism Drive the input shaft (or steering wheel) to the middle position to realize the steering automatic return function.
- the automatic steering mechanism of the input shaft end of the hydraulic steering control valve of the present invention provides an automatic returning force by spring force and/or hydraulic force and/or electric power.
- the automatic returning mechanism of the input shaft end of the hydraulic steering control valve of the invention can be arranged in any section, 'position between the steering wheel of the automobile steering wheel and the input shaft end of the hydraulic steering control valve.
- the automatic returning mechanism of the invention can be designed, manufactured and installed separately from the valve body of the hydraulic steering control valve.
- the hydraulic shock absorbing member of the present invention may be a buffer cylinder.
- the invention relates to a reverse self-locking steering system, which comprises a hydraulic steering control valve and a steering power cylinder or a hydraulic shock absorbing component according to the present invention, when the original steering system of the automobile is a mechanical steering system or In the electric power steering system, the hydraulic steering control valve and the hydraulic shock absorbing component according to the present invention are added to the original steering system of the automobile, that is, the reverse self-locking steering system is formed; when the original steering system of the automobile is the hydraulic power steering system, The hydraulic steering control valve of the present invention replaces the original hydraulic steering control valve to form a reverse self-locking To the system.
- the present invention has the following beneficial effects.
- the hydraulic steering control valve of the present invention turns the hydraulic cylinder on both sides of the steering power cylinder (or the buffer cylinder) and the external hydraulic passage when the vehicle is traveling straight or the steering is stopped (steering to an arbitrary position), and the steering is turned
- the piston of the power cylinder or the buffer cylinder will be in a stable state that cannot be displaced.
- the reaction force of the steering wheel to the steering mechanism is transmitted to the steering cylinder or the buffer cylinder piston, the transmission of the blocking force due to the displacement of the piston is prevented.
- the sudden external force experienced by the steering wheel does not cause steering wheel recoil and yaw yaw, which improves vehicle handling stability and driving safety.
- the automatic return function of the steering system of the present invention is realized by a specially designed spring force (or hydraulic pressure or electric power) returning mechanism, and the automatic returning effect is consistent with the driver's implementation of the steering turning effect, and the automatic returning is light and brisk.
- the steering wheel force condition and the real-time state of the suspension mechanism are relatively small, which facilitates the design of the steering stability of the vehicle.
- the structure and manufacturing process of the hydraulic steering control valve according to the present invention are close to the prior art steering control valve, and the technology and process are mature and reliable.
- the steering power cylinder and the buffer cylinder are all common parts in the automotive technology field, especially existing
- the technical automobile hydraulic power steering system can realize the setting function of the present invention by simply replacing the original steering control valve with the hydraulic steering control of the present invention.
- the prior art mechanical steering system and the electric power steering system only need to increase the two components of the hydraulic steering control and the buffer cylinder described in the present invention, and have the outstanding features of simple process and low cost, and have all the features of the prior art.
- the excellent characteristics of the steering system of the car are beneficial to large-scale popularization and application, and its unique reverse self-locking function will greatly improve the steering stability and driving safety performance of the car.
- Fig. 1 is a structural schematic view of the hydraulic steering control valve of the present invention when the vehicle is traveling straight or maintaining an arbitrary steering angle.
- Fig. 2 is a view showing the configuration of the hydraulic steering control valve of the present invention when the driver performs a leftward steering operation.
- FIG. 3 is a schematic diagram of the principle of the spring force automatic returning mechanism of the hydraulic steering control valve of the present invention.
- 4 is a schematic view showing the principle of the hydraulic assist reverse self-locking steering system of the present invention.
- Fig. 5 is a schematic view showing the principle of a mechanical or electric assist reverse self-locking steering system of the present invention.
- FIG. 1 The structure diagram of the hydraulic steering control valve (spool valve) of the present invention, wherein 1 is a hydraulic steering control valve housing, 2 is a hydraulic steering control valve spool, 3 is a left oil outlet, 4 is an oil inlet, 5 is a right Oil outlet, 6 is mechanical steering gear, 7 is mechanical steering gear housing, 8 is steering wheel, 9 is automatic returning mechanism, 10 is steering rocker pivot fulcrum, 1 1 is mechanical steering rocker arm, 12 is steering The power cylinder housing, 13 is a steering cylinder right cylinder, 14 is a steering cylinder piston (integral with the connecting rod), and 15 is a steering cylinder left cylinder.
- the effect and function principle of the driver's steering to the right are the same as when turning to the left.
- the technical solution of the present invention is based on the principle of a spool type steering control valve, and the technical solution is also applicable to a rotary valve type steering control valve.
- the steering assist function of the hydraulic steering control valve according to the present invention is completely consistent with the control principle and functional effects of the prior art steering control valve.
- FIG. 3 is a schematic structural view of a spring force automatic returning mechanism of a hydraulic steering control valve according to the present invention, wherein 22 is a hydraulic steering control valve input shaft gear, and 21 is a right coil spring gear, 20 is the right coil spring, 19 is the half-circle gear, and 18 is the reduction gear.
- the function is to reduce the left steering angle (one-side) or the right steering angle of the input shaft of the hydraulic steering control valve from 540 degrees to 720 degrees to ⁇ 180 degrees.
- 17 is the left coil spring
- 16 is the left coil spring gear.
- the hydraulic steering control valve input shaft gear 22 rotates counterclockwise, the reduction gear 18 rotates clockwise, the semicircular gear 19 rotates coaxially with the reduction gear 18, and the right reed gear 21 disengages from the semicircular gear 19,
- the left reed gear 16 is rotated counterclockwise by the half-circle gear 19, and the left coil spring 17 is screwed.
- the left coil spring 17 rebounds to drive the left reed gear 16 to rotate clockwise, and the hydraulic steering control valve input shaft gear 22 rotates clockwise through the half-cycle gear 19 and the reduction gear 18 .
- the hydraulic return control valve automatic returning mechanism of the invention can be arranged in any section and position between the steering wheel shaft of the automobile and the steering shaft of the input shaft end of the hydraulic steering control valve, and can be separated from the valve body of the hydraulic steering control valve. Manufacture, facilitate the structural design and installation of the automatic return mechanism.
- Figure 4 is an embodiment of a reverse self-locking steering system based on the automobile hydraulic power steering system.
- 23 is a mechanical steering gear
- 24 is a hydraulic steering control valve of the present invention
- 25 is an oil storage pot
- 26 is a steering pump
- 28 is the steering automatic return mechanism
- 29 is the steering power cylinder
- 30 is the steering rocker arm.
- the distinguishing feature of the present embodiment is that the hydraulic steering control valve with the spring force automatic returning mechanism of the present invention replaces the original steering control valve, and the hydraulic steering control valve realizes the reverse direction.
- the self-locking function, the spring force automatic returning mechanism realizes the steering automatic returning function, and constitutes a steering system with the steering assisting effect which is completely consistent with the prior art and has the reverse self-locking function, and has the hydraulic power steering system of the prior art. Good compatibility and adaptability.
- Figure 5 is an embodiment of a reverse self-locking steering system based on an automotive electric power steering or mechanical steering system.
- 31 is a mechanical steering gear
- 32 is a hydraulic steering control valve according to the present invention
- 33 is a steering wheel
- 34 To turn the automatic return mechanism, 35 is the buffer cylinder and 36 is the steering rocker.
- the hydraulic steering control valve 32 and the steering automatic returning mechanism 34 and the buffer cylinder 35 of the present invention are added to the prior art engine and the electric power steering system, and the hydraulic pressure is turned
- the oil inlet and the oil outlet of the control valve are connected to each other, which constitutes a reverse self-locking steering system.
- the hydraulic steering control valve spool When the hydraulic steering control valve spool is in the middle position, the hydraulic passages of the cylinders on both sides of the buffer cylinder 35 are simultaneously cut off, the buffer cylinder piston can not be displaced, the unexpected force encountered by the steering wheel is blocked, and the reverse self-locking function is realized.
- the cylinders on both sides of the buffer cylinder pass through the oil inlet and the oil outlet, and the buffer cylinder piston is freely displaced with the steering rocker 36 (swinging), and does not constitute a steering operation. Thousands of involvement and hindrance.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080004046.0A CN102282059B (zh) | 2009-11-05 | 2010-11-03 | 一种液压转向控制阀及一种逆向自锁转向*** |
US13/465,048 US8636098B2 (en) | 2009-11-05 | 2012-05-07 | Hydraulic steering control valve and reverse self-locking steering system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910174484.0 | 2009-11-05 | ||
CN200910174484 | 2009-11-05 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/465,048 Continuation-In-Part US8636098B2 (en) | 2009-11-05 | 2012-05-07 | Hydraulic steering control valve and reverse self-locking steering system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011054186A1 true WO2011054186A1 (zh) | 2011-05-12 |
Family
ID=43969567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2010/001767 WO2011054186A1 (zh) | 2009-11-05 | 2010-11-03 | 一种液压转向控制阀及一种逆向自锁转向*** |
Country Status (3)
Country | Link |
---|---|
US (1) | US8636098B2 (zh) |
CN (1) | CN102282059B (zh) |
WO (1) | WO2011054186A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012104369A1 (de) * | 2012-05-21 | 2013-11-21 | Tedrive Steering Systems Gmbh | Verfahren zur Kompensation des Spiels im Getriebe zwischen Lenkrad und Lenkventil |
CN112238892B (zh) * | 2019-07-19 | 2021-12-10 | 郑州宇通客车股份有限公司 | 一种基于eps和ehps的转向***及其控制方法 |
US11466433B2 (en) * | 2020-11-03 | 2022-10-11 | Mahindra And Mahindra Limited | Mechanism for raising and lowering lifting arms of a work vehicle |
CN115026233B (zh) * | 2022-05-30 | 2024-07-30 | 湖州机床厂有限公司 | 环锻液压机及其控制方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4438827A (en) * | 1981-06-05 | 1984-03-27 | Zahnradfabrik Friedrichshafen, Ag | Servo steering, especially for motor vehicles |
JPS60143182A (ja) * | 1983-12-29 | 1985-07-29 | Hino Motors Ltd | パワ−・ステアリングに使用されるコントロ−ル・バルブ |
US4796714A (en) * | 1985-11-30 | 1989-01-10 | Hino Jidosha Kogyo Kabushiki Kaisha | Power steering system for use in large vehicle |
CN2043956U (zh) * | 1988-07-15 | 1989-09-06 | 龚微寒 | 等效转向加力器 |
CN1020435C (zh) * | 1987-11-26 | 1993-05-05 | 腓特烈斯港齿轮工厂股份公司 | 特别用于机动车的静压助力控制装置的改进 |
CN2647705Y (zh) * | 2003-09-27 | 2004-10-13 | 江苏大学 | 一种具有回正控制功能的电动助力转向器 |
CN2654447Y (zh) * | 2003-08-04 | 2004-11-10 | 许倍强 | 一种汽车方向锁定组合阀 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2906361A (en) * | 1957-01-18 | 1959-09-29 | Int Harvester Co | Manual and hydraulic steering apparatus for vehicles |
US5151860A (en) * | 1987-12-29 | 1992-09-29 | Jidoshi Kiki Co., Ltd. | Control method for electric power steering apparatus for vehicle |
CN1061380A (zh) * | 1989-11-10 | 1992-05-27 | 非特烈斯港齿轮工厂股份公司 | 液体静压助力转向装置 |
JPH11505198A (ja) * | 1995-05-22 | 1999-05-18 | コマーシャル インターテック コーポレーション | パワーアシストされた液圧式ステアリングシステム |
US6070691A (en) * | 1997-10-16 | 2000-06-06 | Jerry E. Hansen | Self-aligning hydraulic steering system |
JP3994830B2 (ja) * | 2002-09-04 | 2007-10-24 | 豊田合成株式会社 | ステアリングホイール |
DE202004006294U1 (de) * | 2004-04-21 | 2004-08-26 | Trw Automotive Gmbh | Hydraulisches Servolenkventil mit Lenkmomentüberlagerung |
CN100450852C (zh) * | 2005-06-22 | 2009-01-14 | 比亚迪股份有限公司 | 车辆线传转向机构及其转向阻力模拟装置 |
-
2010
- 2010-11-03 CN CN201080004046.0A patent/CN102282059B/zh not_active Expired - Fee Related
- 2010-11-03 WO PCT/CN2010/001767 patent/WO2011054186A1/zh active Application Filing
-
2012
- 2012-05-07 US US13/465,048 patent/US8636098B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4438827A (en) * | 1981-06-05 | 1984-03-27 | Zahnradfabrik Friedrichshafen, Ag | Servo steering, especially for motor vehicles |
JPS60143182A (ja) * | 1983-12-29 | 1985-07-29 | Hino Motors Ltd | パワ−・ステアリングに使用されるコントロ−ル・バルブ |
US4796714A (en) * | 1985-11-30 | 1989-01-10 | Hino Jidosha Kogyo Kabushiki Kaisha | Power steering system for use in large vehicle |
CN1020435C (zh) * | 1987-11-26 | 1993-05-05 | 腓特烈斯港齿轮工厂股份公司 | 特别用于机动车的静压助力控制装置的改进 |
CN2043956U (zh) * | 1988-07-15 | 1989-09-06 | 龚微寒 | 等效转向加力器 |
CN2654447Y (zh) * | 2003-08-04 | 2004-11-10 | 许倍强 | 一种汽车方向锁定组合阀 |
CN2647705Y (zh) * | 2003-09-27 | 2004-10-13 | 江苏大学 | 一种具有回正控制功能的电动助力转向器 |
Also Published As
Publication number | Publication date |
---|---|
US8636098B2 (en) | 2014-01-28 |
CN102282059B (zh) | 2014-11-05 |
US20120217084A1 (en) | 2012-08-30 |
CN102282059A (zh) | 2011-12-14 |
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