CN102424069A - Double electronic valve device - Google Patents
Double electronic valve device Download PDFInfo
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- CN102424069A CN102424069A CN2011103670783A CN201110367078A CN102424069A CN 102424069 A CN102424069 A CN 102424069A CN 2011103670783 A CN2011103670783 A CN 2011103670783A CN 201110367078 A CN201110367078 A CN 201110367078A CN 102424069 A CN102424069 A CN 102424069A
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Abstract
The invention relates to a double electromagnetic valve device. The double electromagnetic valve device comprises a valve body (1), a valve shell (2) and a valve cover (3), wherein the valve shell (2) is internally provided with two groups of coils (4), armatures (5) and armature pushers (10), each armature pusher (10) is provided with a return spring (9), the valve body (1) is provided with a pressure oil inlet passage (13) and an oil return passage (15), the two oil passages are respectively communicated with the oil inlet line and the oil outlet line of a rotary valve of an automobile power steering gear to form a bypass oil line which can release partial pressure oil, and combination control is carried out on opening and closing states of two electromagnetic valves in the double electromagnetic valve device to realize flow control on the bypass oil line. The double electromagnetic valve device provided by the invention can output multiple hand power characteristic curves, an automobile can have obvious steering handfeel at high speed; meanwhile, the problem of portability during high-speed emergent steering can be solved, and vehicle control stability and safety can be improved.
Description
Technical field
The present invention relates to a kind of dual-coil electromagnetic valve device, especially relate to a kind of automatically controlled bypass dual-coil electromagnetic valve device that can change fluid flow in the entering automobile power steering.
Background technology
Along with growth in the living standard, road-holding property, the safety of people during to vehicle ' had higher requirement.For the automobile power steering system, the road-holding property when both requiring high speed, the ease of steering in the time of must possessing low speed again, at present; Widespread use be hydraulic power-assist steering system, when automobile low speed, portability is preferably arranged like the steering dish; Then when the speed of a motor vehicle faster the time, just can produce bigger power-assisted, it is too light to make bearing circle handle; Lose road feel easily, produce the problem of automobile " unstable ", reduced the safety performance of running at high speed.Otherwise, as satisfy high-speed handing stability, the ease of steering when then having satisfied not low speed.
Because the conventional hydraulic servo steering system only has fixing hand-power characteristic; Can't effectively solve the contradiction that turns to " gently " and " spirit "; And the problem of steering effort and road feel mutual restriction; So people propose the electric-controlled hydraulic servo steering system and control the flow that gets into deflector, good hand feeling when satisfying low speed portability and high speed.The representative type solution has: Chinese patent ZL00210849.6, and name is called " the two characteristic rotary valves of automobile power steering ", and this patent is provided with by-pass prot between high low speed valve port; By single solenoid control bypass circulation, close electromagnetic valve during low speed to satisfy light requirement, open electromagnetic valve during high speed recirculating oil quantity is increased; Reduce steering hydraulic power; But this scheme only adopts single electromagnetic valve, can not export multiple hand-power characteristic curve simultaneously, can not adapt to the requirement of the multistage variation of power steering.Chinese patent 201020646637.5; Name is called " automobile-used electric-controlled hydraulic servo steering system ", proposed to utilize a plurality of independent electromagnetic valves to open and close combination obtaining the steering swivel system scheme of good assist characteristic, but scheme simply connects a plurality of independent electromagnetic valves through pipeline; Complex structure; Take up room, installation difficulty is big, poor practicability.Chinese patent 200820237155.9; Name is called the restriction size that has adopted electromagnetic proportional valve to regulate bypass disc in " a kind of electrohydraulic power steering pump "; The problem of forfeiture road feel in the time of can solving automobile high-speed to a certain extent and turn to; But this scheme is had relatively high expectations to the accuracy of manufacture of electromagnetic proportional valve itself, and spool often bears incessantly high pressure in actual use and unsettled phenomenon occurs opening, is difficult to control.Above-mentioned these scheme ubiquity complex structures, cost of product is higher, and wayward grade is not enough, is difficult to obtain the good power-assisted feel of chaufeur needs.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can export many assist characteristic curves, power-assisted better effects if, and compact conformation, control is simple, the automatically controlled bypass dual-coil electromagnetic valve of lower-cost power steering device.
To achieve these goals, its technical scheme of the present invention is: the dual-coil electromagnetic valve device comprises valve body; Valve casing and valve gap; Two groups of coils, armature and armature lifters are installed in the valve casing, retracing spring is installed on the armature lifter, said valve body is provided with fluid oil input channel and back oil road; Two oil ducts link with the advancing of automobile power steering rotary valve, oil return line respectively; Form bleed off circuit,, realize control the bleed off circuit flow through the different opening and closing combinations of states of two electromagnetic valves in the control dual-coil electromagnetic valve device.
Described bypass dual-coil electromagnetic valve device comprises valve body, valve casing, valve gap, and said valve body, valve casing, valve gap is assembled into one through bolt.
Said valve body; To have two diameters on the end face that connects identical matching with valve casing; And the counterbore chamber of position symmetry, and offer the hole of two different-diameters in two vestibule central authorities, two holes link through subordinate's oil circuit in the valve casing; Two counterbores middle part links through another inner oil circuit of going up, and oil circuit is parallel to each other up and down; On the side perpendicular, have two counterbores that diameter is identical with connecting end face; It is identical to be drilled with two diameters in these counterbore central authorities; Be parallel to each other but not at the oil circuit of same level attitude the oil inlet passage of wherein left side oil circuit and the vertical UNICOM of last oil circuit, and formation bypass fluid; Right side oil circuit and the vertical UNICOM of following oil circuit, and form drainback passage.
Said valve casing inside comprises two groups of coils and armature and other annex, and coil inside is placed armature, and coil is on coil rack; The inner armature of placing of skeleton is equipped with copper sleeve, sleeve one end flange between coil rack and the armature; Behind the coil electricity, armature can move axially in copper sleeve; Armature top is protruding truncated cone-shaped; The armature other end is through the thread connection armature lifter; Taper shape is processed on the push rod top, is used for the opening and closing aperture, and push rod spring and trip ring sky are enclosed within on the push rod; The back-up ring reaction plate is fixed on the valve body through the flange of bolt with back-up ring and sleeve together, and spring is compressive state in push rod.
Be processed with the long through-hole of six symmetric arrangement in the said valve casing, be used to lay six overbolts.
Said valve gap middle part symmetry processes two round boss; Two boss are positioned in the two copper sleeves, and with the sleeve transition fit, the boss external cylindrical surface has two seal grooves; Be used to lay seal ring; Raised head face is processed as recessed taper shape, and is corresponding with the protruding truncated cone-shaped of armature top face, is used for the location of taking a seat of armature.
Be processed with the through hole of six symmetric arrangement in the said valve gap, be used to lay six overbolts.
The left oil circuit in the said valve body side and the oil input channel of power steering rotary valve link, and the back oil road of right oil circuit and power steering rotary valve links.
Described automatically controlled bypass dual-coil electromagnetic valve device is opened with closed according to the independent of two electromagnetic valves in the speed of a motor vehicle, the dtc signal control dual-coil electromagnetic valve device by controller.
Said coil inner sleeve is copper, in case principal vertical line circle temperature distortion and influence moving axially of armature.
Be processed with the tapped bore of six symmetric arrangement in the said valve body, six overbolts are through valve casing, and cooresponding through hole connects valve casing in the valve gap, valve gap, and they are fastened on the valve body.
Be processed with two through holes with lateral vertical on the said valve body, whole device and deflector be fixedly connected through bolt.
The invention has the beneficial effects as follows: after adopting said structure; Controller is divided into four reasonable sections with the speed of a motor vehicle; Through obtaining GES, after via controller was judged the residing speed section of the speed of a motor vehicle, the electromagnetic valve in the control dual-coil electromagnetic valve device was opened and is closed; Can realize four kinds of different bypass flow patterns, the fixedly hand-power characteristic of rotary valve is become many controlled characteristic curves.When the low speed section, two electromagnetic valves are closed simultaneously in the dual-coil electromagnetic valve device, and the hand-power characteristic is shown in figure 16, and rate of curve is bigger, and this moment, feel was light; When middle low speed section, the electromagnetic valve of corresponding less latus rectum is opened after energising in the device, and the fraction flow flows away from this passage; When the high speed section, the electromagnetic valve of corresponding big latus rectum is opened after energising in the device, and more flow flows away from this passage; When high-velocity section, the dual-coil electromagnetic valve standard-sized sheet, two passages flow capable of bypass is maximum, and the hand-power characteristic curve is " U " shape, and it is sedate to turn to, and has improved the road-holding property of automobile.In addition, as under the high speed steering operating mode, controller cuts off two solenoid valve rapidly according to the signal of GES and deflection angle speed, significantly improves the power-assisted effect, realizes emergency turn safety hedging, improves safety.
The present invention is designed to one with two electromagnetic valve combinations, on valve body, is provided with unified oil inlet passage and drainback passage, novel structure, and rationally compact, it is little to take up room, and is easy to control, can improve the vehicle performance performance, has adapted to automobile energy-saving, environmental protection requirement.
The present invention can be through changing the latus rectum of cutoff port on the valve body, is complementary with the power steering of different model, and the hand-power characteristic curve that output and the type deflector are complementary, commonality is stronger.
Description of drawings
Fig. 1 is a dual-coil electromagnetic valve apparatus structure cutaway view of the present invention.
Fig. 2 is the valve body front view of dual-coil electromagnetic valve device of the present invention.
Fig. 3 is the valve A-A cutaway view of dual-coil electromagnetic valve device of the present invention.
Fig. 4 is the valve body birds-eye view of dual-coil electromagnetic valve device of the present invention.
Fig. 5 is the valve B-B cutaway view of dual-coil electromagnetic valve device of the present invention.
Fig. 6 is the valve casing birds-eye view of dual-coil electromagnetic valve device of the present invention.
Fig. 7 is the valve casing K-K cutaway view of dual-coil electromagnetic valve device of the present invention.
Fig. 8 is the valve gap front view of dual-coil electromagnetic valve device of the present invention.
Fig. 9 is the valve gap N-N cutaway view of dual-coil electromagnetic valve device of the present invention.
Figure 10 is the armature lifter front view in the dual-coil electromagnetic valve device of the present invention.
Figure 11 is the armature front view in the dual-coil electromagnetic valve device of the present invention.
Figure 12 is the sleeve cutaway view in the dual-coil electromagnetic valve device of the present invention.
Figure 13 is the back-up ring reaction plate view in the dual-coil electromagnetic valve device of the present invention.
Figure 14 is the back-up ring cutaway view in the dual-coil electromagnetic valve device of the present invention.
Figure 15 is many characteristic hand-power performance diagrams of the present invention's output.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed explanation:
As shown in Figure 1, the dual-coil electromagnetic valve device is designed to one with two electromagnetic valve combinations, comprises valve body (1); Valve casing (2); Valve gap (3), coil (4), armature (5), armature lifter (10) and other annex, with six overbolts with valve body (1); Valve casing (2); Valve gap (3) is fixedly connected and is integral, and further the dual-coil electromagnetic valve device is fixed by bolts on the power steering front end cover through the hole among Fig. 2 (19), and makes oil-feed on the dual-coil electromagnetic valve device valve body, drainback passage link with the oil inlet passage and the drainback passage of power steering rotary valve respectively.
Extremely shown in Figure 5 like Fig. 2; Valve body (1) with the joining end face C of valve casing face on to have two diameters identical; And the counterbore chamber E and the counterbore chamber F of position symmetry; And be drilled with the oilhole (12) and the oilhole (14) of two different-diameters in two counterbore chamber central authorities, and oilhole (12) and oilhole (14) link through oil circuit under the valve inner (15), and chamber E and chamber F middle part link through oil circuit (13); With the perpendicular side D of end face C on have two counterbore G and counterbore H that diameter is identical, be drilled with the oil circuit (16) and the oil circuit (17) of two same diameter in two counterbore central authorities, two oil circuits are parallel to each other but not at same level attitude; At valve inner, last oil circuit (13) is parallel with following oil circuit (15), last oil circuit (13) and vertical the linking of left oil circuit (16), following oil circuit (15) and vertical the linking of right oil circuit (17).
In the such scheme, on the end face C, offer two circular ring slots respectively, be used to lay seal ring (8) around counterbore chamber E and counterbore chamber F.
In the such scheme, bypass fluid gets into the hole G in the valve body (1) through the oil circuit that links with deflector rotary valve oil inlet passage, and is flowed in the oil circuit (13) by oil circuit (16), thereby arrives counterbore chamber E and counterbore chamber F.
Extremely shown in Figure 7 like Fig. 6; Valve casing (2) inside comprises two groups of coils (4), armature (5), armature lifter (10) and other annex, and coil (4) is on coil rack, and armature (5) is placed in skeleton inside; Copper sleeve (11) is installed between coil rack and the armature (5); Behind the coil electricity, armature can move axially in copper sleeve (11), copper sleeve (11) one end flange.Armature (5) top is protruding truncated cone-shaped; The armature other end is through thread connection armature lifter (10); Push rod (10) one ends coning are used for opening and closing oilhole (12) and oilhole (14), and retracing spring (9) and trip ring (7) sky are enclosed within the push rod (10); Back-up ring reaction plate (6) is fixed on the valve body (1) through the flange and the back-up ring (7) of four bolts with sleeve (11), and spring is compressive state in push rod.
In the such scheme, the bush material in the middle of coil and the armature adopts copper, after preventing the magnet coil energising, and coil rack expanded by heating and influence moving of armature.
Extremely shown in Figure 9 like Fig. 8; Valve gap (3) middle part is symmetrily processed with two round boss, and two boss place in the two copper sleeves (11), and raised head face is processed as recessed conical hole; Corresponding with the taper of armature (5) top end face dome, be used for the location of taking a seat after armature receives magnet coil suction.
In the such scheme, valve gap (3) goes up round boss and sleeve (11) adopts transition fit, and the round boss external cylindrical surface has two circular grooves, is used to lay seal ring (18).
In the such scheme, the controller of dual-coil electromagnetic valve device is realized the control to the bleed off circuit flow according to single independent unlatching, contract fully or the standard-sized sheet of the speed of a motor vehicle, inner two electromagnetic valves of dtc signal control dual-coil electromagnetic valve device.
Be example with each operating mode of running car below, further specify the relation of automatically controlled bypass dual-coil electromagnetic valve device working process and each several part:
Behind the start the engine; Power steering system work, steering hydraulic oil one tunnel gets into steering control valve, and one the tunnel as the hole G in the valve body (1) in the bypass fluid entering dual-coil electromagnetic valve device; And by in oil circuit (16) the inflow oil circuit (13), thereby arrive counterbore chamber E and counterbore chamber F.Fluid will enter into sleeve (11) inside through back-up ring (7) by chamber E and chamber F, because the sealing function of seal ring (8) and seal ring (18), armature (5) is immersed in the fluid.Because this moment, the speed of a motor vehicle was very low, two magnet coils are in off-position, and armature lifter (10) is closed two holes (12) and (14) under the thrust of retracing spring (9), and whole bleed off circuit does not have oil mass to pass through.
Automobile is during with middle low speed driving, and controller is connected the magnet coil energising corresponding to little passing hole (12) according to GES; Produce electromagnetic attraction behind the coil electricity, and overcome the thrust of retracing spring (9), with moving behind the armature (5); And be seated in the recessed conical hole, valve gap round boss top, armature lifter (10) moves after following armature (5), thus open hole (12); At this moment, fluid flows into oil circuit (15) down, and through oil circuit (17); Hole H is back in the drainback passage in the deflector, and the bypass oil mass is by the latus rectum decision of hole (12).
Similar with above middle low speed, when automobile goes with high speed, big passing hole (14) will be opened, and the bypass oil mass is by the latus rectum decision of hole (14).
When the automobile at high speed went, controller supplied power for two magnet coils simultaneously, and hole (12) and hole (14) are opened the bypass maximum flow simultaneously.
When taking place to turn to greatly fast when automobile high-speed chance emergency situation; Controller can cut off two solenoid valve rapidly according to GES and angular signal, and bleed off circuit is closed, and can significantly improve power-assisted this moment; Realize emergency turn safety hedging, thereby improve vehicle high-speed secure property.
A kind of automatically controlled bypass dual-coil electromagnetic valve device provided by the invention can also be used as other executive device that need change the oil circuit flow.
Claims (3)
1. a dual-coil electromagnetic valve device comprises valve body (1), valve casing (2), and valve gap (3) is characterized in that:
Said valve casing (2) inside is equipped with two groups of coils (4), armature (5), armature lifter (10) and other annex, and armature lifter (10) is gone up retracing spring (9) is installed; Said valve body (1), valve casing (2), valve gap (3) is assembled into one through bolt;
To have two diameters on the C end face that connects identical matching with valve casing for said valve body (1); And position symmetry counterbore chamber E and counterbore chamber F; And be drilled with the oilhole (12) and the oilhole (14) of two different-diameters in two counterbore chamber central authorities; Oilhole (12) and oilhole (14) link through valve inner oil circuit (15), and chamber E and chamber F middle part link through oil circuit (13); With the perpendicular side D of end face C on have two counterbore G and counterbore H that diameter is identical, be drilled with the oil circuit (16) and the oil circuit (17) of two same diameter in two counterbore central authorities, two oil circuits are parallel to each other but not at same level attitude; At valve inner, oil circuit (13) is parallel with oil circuit (15), oil circuit (13) and the vertical UNICOM of oil circuit (16), and the oil inlet passage of formation bypass fluid, oil circuit (15) and the vertical UNICOM of oil circuit (17) form drainback passage;
Said coil (4) is on coil rack, and the inner armature (5) of placing of skeleton is equipped with copper sleeve (11) between coil rack and the armature (5), and behind the coil electricity, armature moves axially in copper sleeve; Armature (5) top is protruding truncated cone-shaped; The armature other end is through thread connection armature lifter (10); Push rod (10) top coning is used for the opening and closing oilhole, and retracing spring (9) and trip ring (7) sky are enclosed within the push rod (10); Back-up ring reaction plate (6) is fixed on the valve body (1) through the flange and the back-up ring (7) of bolt with sleeve (11) together, and spring is compressive state in push rod;
Said valve gap (3) middle part is symmetrily processed with two round boss; Two boss place in the two copper sleeves (11); And adopt transition fit with sleeve (11), and the round boss external cylindrical surface has two circular grooves, and raised head face is processed as recessed circular cone hole shape; Corresponding with the taper of armature (5) top end face dome, be used for the location of taking a seat of armature.
2. a kind of dual-coil electromagnetic valve device according to claim 1 is characterized in that: said oil circuit (16) is connected with the oil input channel that gets into the power steering rotary valve, and oil circuit (17) is connected with the back oil road of power steering rotary valve.
3. a kind of dual-coil electromagnetic valve device according to claim 1 and 2 is characterized in that: also comprise a kind of controller, said controller is controlled the independent unlatching and closure of two electromagnetic valves in the dual-coil electromagnetic valve device respectively according to the speed of a motor vehicle, two signals of torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110367078 CN102424069B (en) | 2011-11-18 | 2011-11-18 | Double electronic valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110367078 CN102424069B (en) | 2011-11-18 | 2011-11-18 | Double electronic valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102424069A true CN102424069A (en) | 2012-04-25 |
| CN102424069B CN102424069B (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110367078 Expired - Fee Related CN102424069B (en) | 2011-11-18 | 2011-11-18 | Double electronic valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102424069B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6193009B1 (en) * | 1998-07-24 | 2001-02-27 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Electromagnetic valve for a vehicle and a power steering device |
| CN1990323A (en) * | 2005-12-29 | 2007-07-04 | 许倍强 | Hydraulic power-assisted steering system and direction dogging method |
| CN101011979A (en) * | 2007-02-14 | 2007-08-08 | 重庆红岩汽车有限责任公司 | Rotary valve assembly limited by double-pin |
| US20080066463A1 (en) * | 2006-09-20 | 2008-03-20 | Davison James L | Vehicular hydraulic system with dual relief valve |
| CN101571207A (en) * | 2009-06-15 | 2009-11-04 | 哈尔滨工程大学 | Redundant dual-coil electromagnetic valve |
-
2011
- 2011-11-18 CN CN 201110367078 patent/CN102424069B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6193009B1 (en) * | 1998-07-24 | 2001-02-27 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Electromagnetic valve for a vehicle and a power steering device |
| CN1990323A (en) * | 2005-12-29 | 2007-07-04 | 许倍强 | Hydraulic power-assisted steering system and direction dogging method |
| US20080066463A1 (en) * | 2006-09-20 | 2008-03-20 | Davison James L | Vehicular hydraulic system with dual relief valve |
| CN101011979A (en) * | 2007-02-14 | 2007-08-08 | 重庆红岩汽车有限责任公司 | Rotary valve assembly limited by double-pin |
| CN101571207A (en) * | 2009-06-15 | 2009-11-04 | 哈尔滨工程大学 | Redundant dual-coil electromagnetic valve |
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| Publication number | Publication date |
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| CN102424069B (en) | 2013-06-12 |
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