CN1164209A - 2-position 3-way solenoid valve, modulator and anti-lock brake system with the valve - Google Patents
2-position 3-way solenoid valve, modulator and anti-lock brake system with the valve Download PDFInfo
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- CN1164209A CN1164209A CN 95196298 CN95196298A CN1164209A CN 1164209 A CN1164209 A CN 1164209A CN 95196298 CN95196298 CN 95196298 CN 95196298 A CN95196298 A CN 95196298A CN 1164209 A CN1164209 A CN 1164209A
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Abstract
A 2-position 3-way solenoid valve having first, second and third ports and first and second chambers. The first chamber is communicated with the first port and the second chamber is communicated with the second and third ports. The chambers are partitioned by a barrier wall and are communicated with each other by an opening formed to the barrier wall. In response to a valve-actuated signal, a spool is moved in lengthwise direction, so that the opening and the third port are opened alternatively. When the third port is closed, the hydraulic pressure generated from a hydraulic pump is supplied to a brake wheel cylinder through the first and second ports to increase braking pressure. When the opening is closed, the hydraulic pressure within the brake wheel cylinder is decreased through the second and third ports to decrease braking pressure.
Description
The present invention relates to the regulating control and the anti-skid brake system of electromagnetic valve and employing electromagnetic valve.Specifically, the present invention has released a kind of 23 logical (following brief note is " 2/3 ") electromagnetic valves of anti-skid brake system and regulating control and anti-skid brake system that adopts the compact conformation of this electromagnetic valve of being used for.
Recently, generally adopted and prevented the anti-skid brake system of wheel in the glancing impact locking.If wheel lockup during braking and skidding at road surface, the friction force between tire and the road surface will reduce so, thereby has increased stopping distance.Anti-skid brake system increases, keeps or reduce to act on the brake-pressure on the wheel repeatedly, prevents wheel lockup.Usually, increase brake-pressure and be called boost mode, keep brake-pressure to be called the maintenance pattern, be called pressure reducing mode and reduce brake-pressure.Anti-skid brake system generally comprises: the pressure such as pump produces source (rather than master control cylinder), some are by the valve of electric signal control, some are the sensor of monitoring wheel rotating speed respectively, and a controller that opens and closes the effective braking of acquisition of these valves according to pre-defined rule.
Figure 1A is a liquid road schematic diagram, shows a kind of common anti-skid brake system that adopts 22 logical (being designated as 2/2 to call in the following text) electromagnetic valves.In boost mode, the first and second 2/2 electromagnetic valve S220, S221 do not power up, the first electromagnetic valve S220 of the outlet of receiving liquid pump 120 is opened, and the second electromagnetic valve S221 of the inlet of receiving liquid pump 120 is closed, like this, the hydraulic pressure of liquid pump 120 generations just has been added on the wheel braking cylinder that is installed in the wheel place.In the maintenance pattern, the first electromagnetic valve S220 powers up, and makes first closed electromagnetic valve, and like this, the pressure of wheel braking cylinder just remains unchanged.At pressure reducing mode, the first and second electromagnetic valve S220, S221 power up, and the first electromagnetic valve S220 is closed, and the second electromagnetic valve S211 is opened, and like this, the pressure of wheel braking cylinder is just reduced.This system works is stable, but every road need be with two electromagnetic valves.Therefore, used electromagnetic valve quantity increases, and whole anti-skid brake system seems excessive.
Figure 1B shows a kind of liquid road schematic diagram that adopts the common anti-skid brake system of 33 logical (following brief note is 3/3) electromagnetic valves.In boost mode, 3/3 electromagnetic valve S330 does not power up, and the hydraulic pressure that makes liquid pump 120 produce is added to the wheel braking cylinder, thereby has increased brake-pressure.In the maintenance pattern, there is a main switch signal to be added on the 3/3 electromagnetic valve S330, three mouths of 3/3 electromagnetic valve S330 are all closed, thereby keep the pressure of wheel braking cylinder constant.At pressure reducing mode, it is that main switch signal two-fold auxiliary switch signal is added on the 3/3 electromagnetic valve S330 that a voltage is arranged, and reduces the pressure of wheel braking cylinder.In this system,, so reduced used electromagnetic valve quantity because every kind only with an electromagnetic valve.Yet, this electromagnetic valve structure complexity, volume is also just bigger.In addition, because execution is the two-stage voltage control, therefore needs baroque electronic controller and cooperate, response time is long.So, this system works instability.
In order to overcome the problems referred to above, anti-skid brake system a kind of as that disclosed has been proposed in the U.S. Patent No. 4,865,399 of authorizing people such as Atkins.This system comprises a liquid pump, and some are configured to 2/3 electromagnetic valve of each wheel, and a control setup.Yet this system does not overcome the problems referred to above fully, because there is not fully to reduce the quantity of used valve, just this system also comprises some electromagnetic control disconnecting valves except 2/3 electromagnetic valve.Therefore, the total of this system is complicated owing to used one group of solenoid electric valve.In addition, the 2/3 electromagnetic valve structure complexity that system is used is made inconvenience.
Simultaneously, 2/3 electromagnetic valve a kind of as that disclosed has been proposed in the U.S. Patent No. 5,135,027 of authorizing people such as Nobuaki Miki.Yet this electromagnetic valve is not used for anti-skid brake system but is used for common hydraulic efficiency pressure system.This electromagnetic valve has such structure: it is to rely on the motion of ball under the effect of braking liquid stream to close that a liquid mouth is arranged, and ball is promoted by pressure reduction.In other words, though power up the restoring force motion that makes bar alive overcome spring on the magnet coil, ball is not the motion campaign owing to the bar of living, but owing to the pressure reduction between the liquid mouth moves.Therefore, if the pressure of outlet is higher than the pressure of inlet, so this electromagnetic valve is just stifled incessantly to reflux.In addition, the electromagnetic valve that anti-skid brake system is used requires response time below 8 milliseconds, and this electromagnetic valve commonly used carries out work owing to moving under pressure reduction by ball, so response time is just long.And because the fluctuating of fluid pressure differential, response time can not remain unchanged.
The present invention proposes in order to address the above problem.Therefore, first purpose of the present invention provide a kind ofly be swift in motion, simple in structure, highly reliable 2/3 electromagnetic valve that can the accuracy control opening.
Second purpose of the present invention provides a kind of small size regulating control simple in structure, and this regulating control is equipped with above-mentioned 2/3 electromagnetic valve, can be used for anti-skid brake system.
The 3rd purpose of the present invention provides a kind of anti-skid brake system that is made of with one 2/3 electromagnetic valve every road.
In order to reach first purpose of the present invention, the electromagnetic valve that provides according to first embodiment comprises:
A valve body, this valve body has a pedestal that a reception is arranged from the 3rd liquid mouth of the second liquid mouth of the first liquid mouth of the liquid in a feed flow source, an inflow/trickle and a discharge liquid, and an end seal bonded assembly with this pedestal is sealed the end cap of this end;
A next door, be used for a chamber that is surrounded by pedestal and end cap in the valve body is divided into one first chamber and one second chamber, this next door has first opening, first chamber that first chamber is communicated with second chamber to be communicated with the first liquid mouth, and second chamber is communicated with the second and the 3rd liquid mouth;
An opening/closing, this device can be along the axial motion of valve body, under the electric signal effect, alternately open and close first opening and the 3rd liquid mouth, this device is in the primary importance of closing the 3rd liquid mouth and opening first opening at the normal state that does not add electric signal, or be in the second place of closing first opening and opening the 3rd liquid mouth, thereby the first liquid mouth be communicated with the second liquid mouth or the second liquid mouth is communicated with the 3rd liquid mouth in the foment that has added electric signal; And
An electromagnetic assembly, this assembly has an annular magnet coil, a line tube and an a pair of electrode that is exposed to the valve body outside that is electrically connected with this annular magnet coil around this annular magnet coil, is used for making opening/closing move to the second place from primary importance under action of electric signals.
In order to reach first purpose of the present invention, a kind of electromagnetic valve that provides according to second embodiment also comprises a nozzle that is used to reduce the fluctuating of the hydraulic pressure passed by the second liquid oral instructions, and preferably relative with a nozzle boiler check valve that is used for reducing immediately second intraluminal fluid pressure that disposes.
Opening/closing for example comprises: the armature of a magnetic action lower edge axial motion that can produce at electromagnetic assembly; The support of one one end is on the closed end of opening in the hole of the central authorities of a jut of end cap and the end cap spring of other end support on armature; One is fixed on armature one end insertion end lid spring to support the spring steady arm of end cap spring; A push rod that is fixed on the armature other end; And one with the integrally formed plunger of push rod, wherein, end cap, spring steady arm, armature and push rod all are included in first chamber, and plunger is included in second chamber, push rod passes first opening and is connected with plunger in second chamber.
Best, the next door is formed by an inlet shower nozzle, the 3rd liquid mouth is second opening of opening on an outlet shower nozzle with inlet shower nozzle relative installation, open at the diameter of first opening of inlet on the shower nozzle diameter, thereby between first opening and push rod, formed a space that first chamber is communicated with second chamber greater than the push rod that passes first opening.
First chamber is surrounded by inlet shower nozzle, a jut and a tubular sealing member that forms in end cap central authorities in pedestal, and second chamber is surrounded by inlet shower nozzle and outlet shower nozzle in pedestal.
The line tube is installed along tubular sealing member periphery, and jut is installed in the end of tubular sealing member hermetically, and another end of tubular sealing member and pedestal inside face are tightly connected.
In addition, respectively inlet shower nozzle and outlet on the shower nozzle a corresponding access valve that is formed for being located in plunger be located in the surface and an outlet valve is located in the surface.Access valve is located in the surface and outlet valve is located in the shape that surface working becomes and plunger mates, and makes plunger when being seated to access valve and being located in surface or outlet valve and being located in the surface, with regard to corresponding first opening or second opening of having closed.
According to this preferred embodiment, this electromagnetic valve also comprises a lining that is configured between armature and the next door, is used to support push rod.
In order to reach second purpose of the present invention, this regulating control that is used for anti-skid brake system that is provided comprises:
An electrical motor;
Be installed in the regulator block, by electric motor driven first and second liquid pumps;
Be installed in first, second, third, fourth electromagnetic valve of interrupted liquid stream in the regulator block, under the electric signal effect;
Be configured in first and second bumpers that are communicated with the outlet of first and second liquid pumps respectively in the regulator block, be used for temporarily holding the liquid that flows out from first and second liquid pumps, with the fluctuating of the hydraulic pressure that reduces the generation of first and second liquid pumps; And
Be configured in first and second pressure accumulators that are communicated with the inlet of first and second liquid pumps respectively in the regulator block, be used for temporarily holding the liquid that flows out from first, second electromagnetic valve and the 3rd, the 4th electromagnetic valve, to reduce the hydraulic pressure in first to fourth electromagnetic valve immediately
Wherein, first to fourth electromagnetic valve each all comprise:
A valve body, this valve body has a pedestal that a reception is arranged from the 3rd liquid mouth of the second liquid mouth of the first liquid mouth of the liquid of a source of supply, an inflow/trickle and a discharge liquid, and an end seal bonded assembly with this pedestal is sealed the end cap of this end;
A next door, be used for a chamber that is surrounded by pedestal and end cap in the valve body is divided into one first chamber and one second chamber, first opening that first chamber is communicated with second chamber is arranged on this next door, and first chamber is communicated with the first liquid mouth, and second chamber is communicated with the second and the 3rd liquid mouth;
An opening/closing, this device can be along the axial motion of valve body, under the electric signal effect, alternately open and close first opening and the 3rd liquid mouth, this device is in the primary importance of closing the 3rd liquid mouth and opening first opening at the normal state that does not add electric signal, or be in the second place of closing first opening and opening the 3rd liquid mouth, thereby the first liquid mouth be communicated with the second liquid mouth or the second liquid mouth is communicated with the 3rd liquid mouth in the foment that has added electric signal; And
An electromagnetic assembly, this assembly has an annular magnet coil, a line tube and an a pair of electrode that is exposed to the valve body outside that is electrically connected with this annular magnet coil around this annular magnet coil, is used for making opening/closing move to the second place from primary importance under action of electric signals.
Best, each respectively disposes three O shape rings along periphery first to fourth electromagnetic valve, to keep the sealing state between first to the 3rd these liquid mouths when packing into.Like this, first to fourth electromagnetic valve being installed only needs they are inserted respectively in each that forms for electromagnetic valve in the regulator block and gets final product.
In addition, each subtracts lip by a shock absorber cylinder and one and forms along lid first and second bumpers in regulator block, and first and second pressure accumulators each is covered by a pressure accumulator tube, pressure accumulator and an accumulator spring forms in regulator block.
In order to reach the 3rd purpose of the present invention, the present invention can be comprised with the anti-skid brake system that wheel was provided of master control cylinder that braking liquid drive wheels drg is provided by the outlet that has that brake pedal drives by the brake pedal of vehicle driver's operation and one for having at least one wheel of being furnished with a car side brake, one:
A vehicle-wheel speed sensor, this sensor configuration are used to measure the speed of wheel on wheel;
A pressure generation part, this part comprise that an electrical motor and at least one are by this electric motor driven liquid pump with an inlet and an outlet;
23 three-way electromagnetic valves, this electromagnetic valve has first a liquid mouth that all is communicated with the outlet of liquid pump and master control cylinder, the second liquid mouth and the 3rd a liquid mouth that is communicated with the liquid pump inlet that one is communicated with the wheel braking cylinder, and this electromagnetic valve can only be interconnected the first and second liquid mouths to make with the primary importance of increase wheel brake cylinder pressure and one the second and the 3rd liquid mouth to move between being interconnected with the second place that reduces wheel brake cylinder pressure at one;
A bumper, this bumper is communicated with the outlet of liquid pump, is used for temporarily holding the braking liquid that flows out from liquid pump, to reduce the fluctuating of the hydraulic pressure that liquid pump produces;
A pressure accumulator, this pressure accumulator is communicated with the inlet of liquid pump, is used for temporarily holding the liquid that flows out from 23 three-way electromagnetic valves, to reduce 23 hydraulic pressure in the three-way electromagnetic valve immediately; And
A control setup, be used to control the work of 23 three-way electromagnetic valves, to increase, to reduce or keep the pressure of wheel braking cylinder, this control setup receives the speed signal from vehicle-wheel speed sensor, to one of electromagnetic valve output have the schedule time every valve drive signal, thereby make electromagnetic valve under this valve drive signal effect, in this predetermined time interval, remain on the primary importance or the second place
Above-mentioned 23 three-way electromagnetic valves comprise:
A valve body, this valve body has a pedestal that reception is arranged from the 3rd liquid mouth of the second liquid mouth of the first liquid mouth of the liquid of pressure generation part, inflow/trickle and discharge liquid, and an end seal bonded assembly with this pedestal is sealed the end cap of this end;
A next door, be used for a chamber that is surrounded by pedestal and end cap in the valve body is divided into one first chamber and one second chamber, there is first opening that first chamber is communicated with second chamber in this next door, and first chamber is communicated with the first liquid mouth, and second chamber is communicated with the second and the 3rd liquid mouth;
An opening/closing, this device can be along the axial motion of valve body, under the electric signal effect, alternately open and close first opening and the 3rd liquid mouth, this device is in the primary importance of closing the 3rd liquid mouth and opening first opening at the normal state that does not add electric signal, or be in the second place of closing first opening and opening the 3rd liquid mouth, thereby the first liquid mouth be communicated with the second liquid mouth or the second liquid mouth is communicated with the 3rd liquid mouth in the foment that has added electric signal; And
An electromagnetic assembly, this assembly has an annular magnet coil, a line tube and an a pair of electrode that is exposed to the valve body outside that is electrically connected with this annular magnet coil around this annular magnet coil, is used for making opening/closing move to the second place from primary importance under action of electric signals.
Valve drive signal can be a pulse width modulating signal or relay system control signal.
In this 2/3 electromagnetic valve proposed by the invention, under the situation that magnet coil does not power up, plunger has been closed the 3rd liquid mouth under the effect of spring restoring force, and the first and second liquid mouths are interconnected.Added under the electric situation at magnet coil, owing to overcome the spring restoring force, plunger is pulled, and opens the 3rd liquid mouth and closes the first liquid mouth, and therefore the second and the 3rd liquid mouth is interconnected.
This 2/3 electromagnetic valve structure proposed by the invention is simple, and used first number is less, thus the misoperation possibility little and work more reliable.In addition, because the response time of this 2/3 electromagnetic valve is short, so can be used to constitute well behaved anti-skid brake system.
This regulating control proposed by the invention is easy to assembly, compact conformation, and installing space in light weight and required is little, so low cost of manufacture.
This anti-skid brake system proposed by the invention starts when chaufeur is stepped on the braking step, carries out work according to the speed signal from vehicle-wheel speed sensor.In boost mode, the hydraulic pressure that liquid pump produces is added to the wheel braking cylinder by the first and second liquid mouths of 2/3 electromagnetic valve proposed by the invention.At this moment, magnet coil does not power up, because this 2/3 electromagnetic valve is an open type.At pressure reducing mode, magnet coil powers up, and closes the first liquid mouth and the second liquid mouth is communicated with the 3rd liquid mouth.If the second liquid mouth and the 3rd liquid mouth are interconnected, a liquid part that is stored in so in the wheel braking cylinder is just delivered in the pressure accumulator by the 3rd liquid oral instructions, thereby has reduced brake-pressure.The maintenance pattern is by repeated open under pulse width modulation (PWM) signal or relay system signal control/close 2/3 electromagnetic valve to realize.
This anti-skid brake system proposed by the invention has reduced the quantity of Electromagnetically driven valve because every road only needs one 2/3 electromagnetic valve, and is therefore simple in structure, reduced the possibility of misoperation.So this anti-skid brake system has the failure-free braking characteristics.
Above purpose of the present invention and other advantages are by will be clearer below in conjunction with the accompanying drawing the following detailed description of the embodiment of the present invention.In these accompanying drawings:
Figure 1A is the schematic diagram of hydraulic efficiency pressure system that the common anti-skid brake system of a kind of employing 2/2 electromagnetic valve is shown;
Figure 1B is the schematic diagram of hydraulic efficiency pressure system that the common anti-skid brake system of a kind of employing 3/3 electromagnetic valve is shown;
Fig. 2 is the cutaway view as 2/3 electromagnetic valve of first embodiment of the invention;
Fig. 3 is the cutaway view as 2/3 electromagnetic valve of second embodiment of the invention;
Fig. 4 is the transparent view of inner structure that the anti-skid brake system regulating control of employing proposed by the invention 2/3 electromagnetic valve is shown;
Fig. 5 is the liquid road figure of regulating control proposed by the invention;
Fig. 6 is the decomposition diagram of regulating control proposed by the invention;
Fig. 7 is the principle of compositionality figure of the anti-skid brake system of employing 2/3 electromagnetic valve proposed by the invention;
Fig. 8 is one the diagram of curves that wheel brake cylinder pressure changes in time is shown, and this diagram of curves is to test by the anti-skid brake system that adopts 2/3 electromagnetic valve as first embodiment of the invention shown in Figure 2 to obtain; And
Fig. 9 illustrates the diagram of curves that wheel brake cylinder pressure changes in time for another, and this diagram of curves is to test by the anti-skid brake system that adopts 2/3 electromagnetic valve as second embodiment of the invention shown in Figure 3 to obtain.
Below, will describe first preferred embodiment of 2/3 electromagnetic valve proposed by the invention in conjunction with Fig. 2 in detail.
As 2/3 electromagnetic valve 100 of this embodiment comprise valve body 10 and with an end seal bonded assembly end cap of valve body 10.In valve body 10, one first chamber 44 and one second chamber 46 are arranged.First chamber 44 is spaces that are divided into by end cap 14 and inlet shower nozzle 34, and second chamber 46 is spaces that are divided into by inlet shower nozzle 34 and outlet shower nozzle 36.
In first chamber 44, comprise end cap spring 16, spring steady arm 22, armature 24, push rod 26 and lining 32.End cap spring 16 1 ends are supported on the end cap 14, and the other end is supported on the armature 24 of the spring steady arm 22 that has insertion end lid spring 16.Spring steady arm 22 is fixed on the central authorities of armature 24 1 ends, as the support/guidance device of end cap spring 16.Armature 24 usefulness ferromagnetic materials are made, can be with making with the material identical materials of valve body 10.Fixing push rod 26 at the other end of armature 24.
Push rod 26 passes lining 32 and inlet shower nozzle 34, one ends have an all-in-one-piece plunger 42 with it.Push rod 26 is fitted in armature 24.Lining 32 is used for supporting push rod 26, has some above and can hold through hole and opening that appearance push rod 26 passes that liquid passes through.As long as the not concrete restriction of the shape of through hole and quantity is the electromagnetic valve stable working.But plunger 42 axially reciprocatings alternately open and close inlet shower nozzle 34 or outlet shower nozzle 36.Push rod 26 and plunger 42 for example can be processed into by cold rolling, and preferably Rockwell hardness is 60 to 65.The outlet valve that is located in of plunger 42 is located in a surface end of 37 and is semisphere, and outlet valve is located in surface 37 and is processed into the shape that is located in this lip-deep end coupling with plunger 42, just blocked inlet shower nozzle 34 when making plunger 42 on being located in this surface, do not allowed liquid pass through.
2/3 electromagnetic valve 100 has the first liquid mouth 20, the second liquid mouth 30 and the 3rd liquid mouth 40.The first liquid mouth 20 is communicated with first chamber 44, and the second liquid mouth 30 and the 3rd liquid mouth 40 are communicated with second chamber 46.According to this embodiment, the 3rd liquid mouth 40 is not opened on valve body 10, but opens on outlet shower nozzle 36 as an outlet shower nozzle hole 39.The first liquid mouth 20 is communicated with master control cylinder 82 (see figure 7)s of motor vehicle braking system, and the second liquid mouth 30 is communicated with wheel braking cylinder (not shown) on being installed in each wheel, and the 3rd liquid mouth 40 is communicated with pressure accumulator 66 or 68 (see figure 5)s.At the normal state that does not power up, plunger 42 keeps being located in outlet valve and is located on the surface 37, closes the 3rd liquid mouth, because 2/3 electromagnetic valve 100 is open types.Therefore, at normal state, the brake-pressure that master control cylinder 82 produces is added to the wheel braking cylinder by the first liquid mouth 20, first chamber 44, inlet shower nozzle 34, second chamber 46 and the second liquid mouth.When magnet coil 12 powers up, the restoring force that the magnetic flux that electromagnetic assembly 11 produces makes armature 24 overcome end cap spring 16 is moved towards end cap 14, thereby the access valve that forces plunger 42 disengagings to be seated to formation on the shower nozzle 34 that entering the mouth after the outlet valve that forms on the outlet shower nozzle 36 is located in surface 37 is located on the surface 35.Like this, plunger 42 just is in off position and has closed inlet shower nozzle 34.When plunger 42 was in off position, the first liquid mouth 20 was closed and the 3rd liquid mouth 40 is opened, and therefore the second and the 3rd liquid mouth 30,40 is interconnected.
For non-leakage liquid, prominent Lu portion 17 of end cap 14 inserts an end of tubular sealing members 15.Jut 17 is processed into cylindrical, closely engages with the inside face of sealing member 15.The central authorities of jut 17 have one one end blind bore 19, are used to hold end cap spring 16.End cap spring 16 1 ends are supported on the closed end in hole 19, and the other end is supported on the armature 24, thereby make armature 24 be subjected to the effect of a predetermined power, are pressed towards lining 32.
First, second and the 3rd O type ring 28,28 ' and 28 " be embedded in out respectively in first, second U-lag 29,29 ' and L shaped groove 31 on valve body 10 outside faces, coaxially round valve body 10.First, second and the 3rd O type ring 28,28 ' and 28 " when being contained in regulating control 76 (see figure 6)s of anti-skid brake system, electromagnetic valve 100 is used to keep the sealing state between first, second and the 3rd liquid mouth 20,30 and 40.Therefore, under the situation in electromagnetic valve 100 is contained in regulating control 76, surrounded one what be communicated with the first liquid mouth 20 has been the space of equipressure basically by being installed in the first and second O type rings 28 and 28 ', regulator block 76 and valve body 10 in first and second U-lags 29 and 29 ' respectively.In addition, by being installed in the 2nd O shape ring 28 in second U-lag 29 ', being installed in the 3rd O shape ring 28 in the L shaped groove 31 ", regulator block 76 and valve body 10 surrounded one what be communicated with the second liquid mouth 30 be the space of equipressure basically.Also have, by the 3rd O shape ring 28 that is installed in the L shaped groove 31 ", regulator block 76, valve body 10 and outlet shower nozzle 36 surrounded one what be communicated with the 3rd liquid mouth 40 be the space of equipressure basically.
In Fig. 3, show 2/3 electromagnetic valve 100 ' as second embodiment of the invention.In this second embodiment, with the identical member of reference numerals respective markers identical among first embodiment.Except also having a nozzle 52 and one first boiler check valve 54, second embodiment and first embodiment are identical.The nozzle 52 and first boiler check valve 54 are installed in the second liquid mouth 30, and desired positions is relative mutually.The hydraulic pressure that pressure generation source produces just applies by nozzle 52.Because the fluctuating of hydraulic pressure in the wheel braking cylinder has almost all been eliminated in the pressure drop that liquid is caused by nozzle 52.The effect of first boiler check valve 54 is, is interconnected liquid when the second liquid mouth 30 sends to the 3rd liquid mouth 40, by forming the opening time that instantaneous fluid passage has shortened 2/3 electromagnetic valve 100 ' at the second and the 3rd liquid mouth 30 and 40.
Below, will describe employing 2/3 electromagnetic valve 100 proposed by the invention or 100 ' anti-skid brake system regulating control 200 in detail in conjunction with Fig. 4 to 6.Among the figure, S1, S2, S3 and S4 be mark first, second, third and the 4th electromagnetic valve respectively, and these electromagnetic valves can be 2/3 electromagnetic valves shown in Fig. 2 and Fig. 3.
In regulator block 76, formed one group of fluid passage, be used to connect each component part, liquid can be transmitted between these component parts.The first fluid passage P1 and P1 make master control cylinder MCP (see figure 7) and secondary control cylinder MCS (see figure 7) be communicated with first and second liquid pumps 58 and 60 respectively.
The first fluid passage P1 and P1 on each branch point of the 6th fluid passage P6 and P6, disposed the second and the 3rd boiler check valve 72 and 74 respectively, the hydraulic pressure that produces with resistance master control cylinder MCP and secondary control cylinder MCS is added in the outlet of first and second liquid pumps 58 and 60.
The first liquid mouth 20 of the first and second electromagnetic valve S1 and S2 and 20 is interconnected by one second fluid passage P2, and the first liquid mouth 20 of the third and fourth electromagnetic valve S3 and S4 and 20 is interconnected by another second fluid passage P2.The 3rd liquid mouth 40 of the first and second electromagnetic valve S1 and S2 and 40 is interconnected by one the 3rd fluid passage P3, and the 3rd liquid mouth 40 of the third and fourth electromagnetic valve S3 and S4 and 40 is interconnected by another the 3rd fluid passage P3.
First and second pressure accumulators 66 and 68 are communicated with by the corresponding inlet with first and second liquid pumps 58 and 60 with P5 of the 5th fluid passage P5 respectively, and first and second bumpers 62 and 64 are communicated with by the corresponding outlet with first and second liquid pumps 58 and 60 with P7 of the 7th fluid passage P7 respectively.
The second fluid passage P2 is connected with P3 with the 3rd fluid passage P3 with P4 by the 4th fluid passage P4 with P2, and the first fluid passage P1 is connected with P2 with the second fluid passage P2 with P6 by the 6th fluid passage P6 with P1.
In regulator block 76, the first, second, third and the 4th electromagnetic valve S1, S2, S3 and S4 proposed by the invention are housed, be used for applying off and on by corresponding first and second liquid pumps 58 and 60 hydraulic pressure that produce to four wheel RR, FL, FR and RL respectively.These four electromagnetic valve S1, S2, S3 and S4 are installed only need they are inserted in respectively that formed corresponding valve installation tube get final product in the regulator block 76, keep first, second and the 3rd O shape of the sealing state between each liquid mouth to encircle 28,28 ' and 28 because these four electromagnetic valve S1, S2, S3 and S4 respectively have been equipped with in the electromagnetic valve back of packing into " (see figure 2).
First and second bumpers 62 and 64 each all comprise a formed shock absorber cylinder (not shown) and a damper cap 63 in regulator block 76, and first and second pressure accumulators 66 and 68 each all comprise a formed pressure accumulator tube (not shown) in regulator block 76,67 and accumulator springs 69 of pressure accumulator lid.
First and second bumpers 62 and the 64 temporary transient liquid that flow out first and second liquid pumps 58 and 60 of preserving have reduced the hydraulic pressure fluctuating that first and second liquid pumps 58 and 60 cause.
In order to reduce the hydraulic pressure of wheel braking cylinder, liquid in second chamber 46 of the first and second electromagnetic valve S1 and S2 is when the 3rd liquid mouth 40 of these two electromagnetic valves flows out, first pressure accumulator 66 is temporary transient preserves the liquid that flow out the 3rd liquid mouths 40, thereby makes the hydraulic pressure in second chamber 46 of the first and second electromagnetic valve S1 and S2 reduce immediately.In order to reduce the hydraulic pressure of wheel braking cylinder, liquid in second chamber 46 of the third and fourth electromagnetic valve S3 and S4 is when the 3rd liquid mouth 40 of these two electromagnetic valves flows out, second pressure accumulator 68 is temporary transient preserves the liquid that flow out the 3rd liquid mouths 40, thereby makes the hydraulic pressure in second chamber 46 of the third and fourth electromagnetic valve S3 and S4 reduce immediately.
The hydraulic pressure that first liquid pump 58 produces is added on the first liquid mouth 20 of the first and second electromagnetic valve S1 and S2 by the first fluid passage P1, second boiler check valve 72, the 6th fluid passage P6 and the second fluid passage P2.The hydraulic pressure that second liquid pump 60 produces is added on the first liquid mouth 20 of the third and fourth electromagnetic valve S3 and S4 by the first fluid passage P1, the 3rd boiler check valve 74, the 6th fluid passage P6 and the second fluid passage P2.
Fig. 7 is employing 2/3 electromagnetic valve 100 proposed by the invention or 100 ' and the principle of compositionality figure of the anti-skid brake system 300 of regulating control 200.
Anti-skid brake system 300 proposed by the invention is used for oblique somatotype brake system, two control cylinders each all front-wheel of specified control and corresponding tiltedly that right trailing wheel, but specially be not limited to this type yet.In order to help to understand, Fig. 7 only illustrates the liquid road figure that comprises master control cylinder MCP, rear right wheel RR and courage revolver FL.
First and second vehicle-wheel speed sensors 92 and 94 have been installed respectively on wheel RR and FL, have been input to the ECU90 of control anti-skid brake system 300 from the speed signal of these vehicle-wheel speed sensor outputs.The first, second, third and the 4th electromagnetic valve S1, S2, S3 and S4 and the electrical motor that drives first and second liquid pumps 58 and 60 are all received the corresponding output end of ECU90 respectively.
Below, with the service condition of accompanying drawings 2/3 electromagnetic valve of the present invention with the anti-skid brake system that adopts this 2/3 electromagnetic valve.
At the out-of-run normal state of anti-skid brake system, if chaufeur has been stepped on braking step 80, the hydraulic pressure that master control cylinder MCP and secondary control cylinder MCS produce is installed in respectively on four corresponding wheel brake cylinders on wheel RR, FL, FR and the RL by being added to behind the first and second liquid mouths 20 and 30 in succession.When anti-skid brake system 300 work, from ECU90 output motor drive signal, driving motor 56; From ECU90 output electromagnetic valve open/closed signal, according to the pre-defined rule opening/closing first, second, third and the 4th electromagnetic valve S1, S2, S3 and S4 the first and the 3rd liquid mouth 20 and 30 separately that are stored in the ECU90, thereby make brake-pressure increase, keep or reduce.
In boost mode, the hydraulic pressure that first and second liquid pumps 58 and 60 produce are added to first liquid road P1 and the P1, after this along with transmit in the identical path of the out-of-run normal state of anti-skid brake system, thereby brake-pressure is increased.Because 2/3 electromagnetic valve of the present invention is a current version, the state that does not power up at magnet coil 12, plunger 42 the restoring force of end cap spring 16 do be located in outlet valve under useful and be located on the surface 37, therefore closed the 3rd liquid mouth, first and second liquid pumps 58 and 60 hydraulic pressure that produce are by being added to each wheel braking cylinder with path identical under normal state.First and second bumpers 62 and 64 are configured in the outlet of first and second liquid pumps 58 and 60 respectively, are used to reduce the fluctuating that the blower operations of first and second liquid pumps 58 and 60 can cause.
At pressure reducing mode, magnet coil 12 is encouraged, and produces magnetic flux, makes armature 24 overcome the restoring force of end cap spring 16, returns towards end cap 14 directions.Plunger 42 breaks away from the outlet valve seats surface 37 that falls, and is located in access valve and is located on the surface 35, makes the 3rd liquid mouth 40 open and the first liquid mouth 20 is closed.Therefore, the liquid in the wheel braking cylinder discharges to first and second pressure accumulators 66 and 68 by the second and the 3rd liquid mouth 30 and 40, thereby has reduced brake-pressure.
The maintenance pattern makes plunger 42 actions realize by utilizing the control of pulse width modulation or relay system repeatedly.If magnet coil 12 is added repeatedly, cuts off the power supply, then because the crank motion of plunger 42, make the first and second liquid mouths 20 and 30 repeated open/close, thereby brake-pressure is remained unchanged.
Fig. 8 is a diagram of curves that wheel brake cylinder pressure and the relation between the time are shown, and this diagram of curves is to obtain by the anti-skid brake system 300 that adopts 2/3 electromagnetic valve 100 as first embodiment of the invention shown in Figure 2 is tested.Fig. 9 illustrates the diagram of curves of wheel brake cylinder pressure and the relation between the time for another, and this diagram of curves is to obtain by the anti-skid brake system 300 that adopts 2/3 electromagnetic valve 100 ' as second embodiment of the invention shown in Figure 3 is tested.
In Fig. 8 and Fig. 9, transverse axis is a time shaft, and is pressure axis from axle.In addition, the variation of " a " expression wheel braking in-cylinder pressure, and " b " expression is added to the waveform of the signal on the electromagnetic valve.As shown in the figure, boost mode is realized that by the OFF signal pressure reducing mode is realized by the ON signal, and the maintenance pattern is realized by the pulse-width signal that occurs ON and OFF signal with predetermined period repeatedly.
In Fig. 8, can see that the fluctuating that takes place in the maintenance pattern is approximately 10 to 20 crust, and be approximately 5 to 10 crust in the fluctuating that boost mode takes place.This fluctuating may cause control cylinder generation problem and make the anti-skid brake system job insecurity.As shown in Figure 9, adopt 2/3 electromagnetic valve 100 ' as second embodiment of the invention shown in Figure 3 almost just to eliminate this fluctuating.
The present invention's 2/3 electromagnetic valve structure is simple, has less member, thus the misoperation possibility little and work more reliable.In addition, because the response time of this 2/3 electromagnetic valve is short, so can be used to constitute well behaved anti-skid brake system.
Regulating control of the present invention is easy to assembly, and structure is to gather, and installing space in light weight and required is little, so low cost of manufacture.
Anti-skid brake system of the present invention has reduced the quantity of electromagnetic valve because every road only needs one 2/3 electromagnetic valve, and is therefore simple in structure, reduced the possibility of misoperation.So this anti-skid brake system has the failure-free braking characteristics.
Though abovely done to specify for the present invention in conjunction with specific embodiments of the invention; but those skilled in the art that are appreciated that spirit of the present invention and the scope of patent protection that wherein can carry out all changes and modification and not deviate from the claims regulation.
Claims (16)
1. electromagnetic valve, described electromagnetic valve comprises:
A valve body, described valve body has first a liquid mouth that a reception is arranged from the liquid in a feed flow source, the pedestal of the 3rd liquid mouth of second liquid mouth of the described liquid of injection/outflow and the described liquid of discharging, and an end seal bonded assembly with described pedestal is sealed the end cap of the described end of described pedestal;
A next door, be used for one in described valve body chamber that is surrounded by described pedestal and end cap is divided into one first chamber and one second chamber, there is first opening that described first chamber is communicated with described second chamber in described next door, described first chamber is communicated with the described first liquid mouth, and described second chamber is communicated with the described second and the 3rd liquid mouth;
An opening/closing, described device can be along the axial motion of described valve body, under an electric signal effect, alternately open and close described first opening and described the 3rd liquid mouth, described device is in a primary importance of closing described the 3rd liquid mouth and opening described first opening at a normal state that does not add described electric signal, or be in the second place of closing described first opening and opening described the 3rd liquid mouth, thereby the described first liquid mouth be communicated with the described second liquid mouth or the described second liquid mouth is communicated with described the 3rd liquid mouth a foment that has added described electric signal; And
An electromagnetic assembly, described assembly has an annular magnet coil, an electrode that is exposed to the described valve body outside that is electrically connected around the line tube and a pair of and described annular magnet coil of described annular magnet coil, is used for making under described action of electric signals described opening/closing to move to the described second place from described primary importance.
2. as the electromagnetic valve that in claim 1, proposed, the wherein said second liquid mouth comprises two mutual relative holes that penetrate described pedestal, and the nozzle of a fluctuating that is used to reduce the hydraulic pressure passed by the described second liquid oral instructions and one are used for reducing immediately the boiler check valve that described second intraluminal fluid presses and are installed in respectively in described two holes.
3. as the electromagnetic valve that proposed in claim 1, wherein said opening/closing comprises:
An armature, described armature can be at the described axial motion in magnetic action lower edge of described electromagnetic assembly generation;
An end cap spring, the support of described spring one end is on a closed end of opening in the hole of the central authorities of a jut of described end cap, and other end support is on described armature;
A spring steady arm, described steady arm are fixed on an end of described armature, insert described end cap spring, are used to support described end cap spring;
A push rod, described push rod is fixed on the other end of described armature; And
A plunger, described plunger and described push rod monolithic molding,
Wherein said end cap, described spring steady arm, described armature and described push rod all are included in described first chamber, and described plunger is included in described second chamber, and the described plunger in described push rod passes described first opening and is included in described second chamber is connected.
4. as the electromagnetic valve that in claim 1, proposed, wherein said next door is formed by an inlet shower nozzle, described the 3rd liquid mouth is second opening of opening on an outlet shower nozzle with the relative installation of described inlet shower nozzle, open the diameter of the diameter of described first opening on described inlet shower nozzle, thereby between described first opening and described push rod, formed a space that described first chamber is communicated with described second chamber greater than the described push rod that passes described first opening.
5. as the electromagnetic valve that in claim 4, proposed, wherein said first chamber is surrounded at jut and the individual tubular sealing member that described end cap central authorities form by described inlet shower nozzle, one in described pedestal, and described second chamber is surrounded by described inlet shower nozzle and described outlet shower nozzle in described pedestal, and
Wherein said line tube is installed along described tubular sealing member periphery, and described prominent Lu portion is installed in the end of described tubular sealing member hermetically, and an inside face of another end of described tubular sealing member and described pedestal is tightly connected.
6. as the electromagnetic valve that in claim 5, proposed, an access valve that is formed for being located in described plunger on wherein said inlet shower nozzle and the described outlet shower nozzle respectively is located in the surface and an outlet valve is located in the surface, described access valve is located in the surface and is located in the shape that surface working becomes and described plunger mates with described outlet valve, make described plunger be located in surface or described outlet valve when being located in the surface, being seated to described access valve with regard to corresponding described first opening or described second opening of having closed.
7. as the electromagnetic valve that proposed in claim 3, described electromagnetic valve also comprises a lining that is configured between described armature and the described next door, is used to support described push rod.
8. electromagnetic valve, described electromagnetic valve comprises:
A valve body, described valve body has the second liquid mouth and a pedestal that discharges the 3rd liquid mouth of described liquid that a reception is arranged from the first liquid mouth of the liquid in a feed flow source, the described liquid of inflow/outflow, and an end seal bonded assembly with described pedestal is sealed the end cap of the described end of described pedestal;
A next door, be used for one in described valve body chamber that is surrounded by described pedestal and end cap is divided into one first chamber and one second chamber, there is first opening that described first chamber is communicated with described second chamber in described next door, described first chamber is communicated with the described first liquid mouth, and described second chamber is communicated with the described second and the 3rd liquid mouth;
An opening/closing, described device can be along the axial motion of described valve body, under an electric signal effect, alternately open and close described first opening and described the 3rd liquid mouth, described device is in a primary importance of closing described the 3rd liquid mouth and opening described first opening at a normal state that does not add described electric signal, or be in the second place of closing described first opening and opening described the 3rd liquid mouth, thereby the described first liquid mouth be communicated with the described second liquid mouth or the described second liquid mouth is communicated with described the 3rd liquid mouth a foment that has added described electric signal; And
An electromagnetic assembly, described assembly has an annular magnet coil, an electrode that is exposed to the described valve body outside that is electrically connected around the line tube and a pair of and described annular magnet coil of described annular magnet coil, be used under described action of electric signals, making described opening/closing to move to the described second place from described primary importance
The wherein said second liquid mouth comprises two mutual relative holes that penetrate described pedestal, the nozzle of a fluctuating that is used to reduce the hydraulic pressure passed by the described second liquid oral instructions and one are used for reducing immediately the boiler check valve that described second intraluminal fluid presses and are installed in respectively in described two holes
Wherein said opening/closing comprises:
An armature, described armature can be at the described axial motion in magnetic action lower edge of described electromagnetic assembly generation;
An end cap spring, the support of described spring one end is on a closed end of opening in the hole of the central authorities of a jut of described end cap, and other end support is on described armature;
A spring steady arm, described steady arm are fixed on an end of described armature, insert described end cap spring, are used to support described end cap spring;
A push rod, described push rod is fixed on the other end of described armature;
A plunger, described plunger and described push rod monolithic molding,
Wherein said end cap, described spring steady arm, described armature and described push rod all are included in described first chamber, and described plunger is included in described second chamber, and the described plunger in described push rod passes described first opening and is included in described second chamber is connected,
Wherein said next door is formed by an inlet shower nozzle, described the 3rd liquid mouth is second opening of opening on an outlet shower nozzle with the relative installation of described inlet shower nozzle, open the diameter of the diameter of described first opening on described inlet shower nozzle greater than the described push rod that passes described first opening, thereby between described first opening and described push rod, formed a space that described first chamber is communicated with described second chamber
Wherein said first chamber is surrounded at jut and tubular sealing member that described end cap central authorities form by described inlet shower nozzle, one in described pedestal, and described second chamber is surrounded by described inlet shower nozzle and described outlet shower nozzle in described pedestal,
Wherein said line tube is installed along described tubular sealing member periphery, and described jut is installed in the end of described tubular sealing member hermetically, and an inside face of another end of described tubular sealing member and described pedestal is tightly connected,
An access valve that is formed for being located in described plunger on wherein said inlet shower nozzle and the described outlet shower nozzle respectively is located in the surface and an outlet valve is located in the surface, described access valve is located in the surface and is located in the shape that surface working becomes and described plunger mates with described outlet valve, make described plunger be located in surface or described outlet valve when being located in the surface being seated to described access valve, with regard to corresponding described first opening or described second opening of having closed
Described electromagnetic valve also comprises a lining that is configured between described armature and the described next door, is used to support described push rod.
9. regulating control that is used for anti-skid brake system, described regulating control comprises:
An electrical motor;
Be installed in the regulator block by described electric motor driven first and second liquid pumps;
Be installed in the first, second, third and the 4th electromagnetic valve that interrupted liquid flows under an electric signal effect in the described regulator block;
Be configured in first and second bumpers that are communicated with the outlet of described first and second liquid pumps respectively in the described regulator block, be used for temporarily holding the liquid that flows out from described first and second liquid pumps, to reduce the fluctuating of the hydraulic pressure that described first and second liquid pumps produce; And
Be configured in first and second pressure accumulators that are communicated with the inlet of described first and second liquid pumps respectively in the described regulator block, be used for temporarily holding liquid from described first, second electromagnetic valve and the outflow of described the 3rd, the 4th electromagnetic valve, to reduce the hydraulic pressure in described first to fourth electromagnetic valve immediately
Each all comprises wherein said first to fourth electromagnetic valve:
A valve body, described valve body has the second liquid mouth and a pedestal that discharges the 3rd liquid mouth of described liquid that a reception is arranged from the first liquid mouth of the liquid in a feed flow source, the described liquid of inflow/outflow, and an end seal bonded assembly with described pedestal is sealed the end cap of the described end of described pedestal;
A next door, be used for one in described valve body chamber that is surrounded by described pedestal and end cap is divided into one first chamber and one second chamber, there is first opening that described first chamber is communicated with described second chamber in described next door, described first chamber is communicated with the described first liquid mouth, and described second chamber is communicated with the described second and the 3rd liquid mouth;
An opening/closing, described device can be along the axial motion of described valve body, under an electric signal effect, alternately open and close described first opening and described the 3rd liquid mouth, described device is in a primary importance of closing described the 3rd liquid mouth and opening described first opening at a normal state that does not add described electric signal, or be in the second place of closing described first opening and opening described the 3rd liquid mouth, thereby the described first liquid mouth be communicated with the described second liquid mouth or the described second liquid mouth is communicated with described the 3rd liquid mouth a foment that has added described electric signal; And
An electromagnetic assembly, described assembly has an annular magnet coil, a line tube and the electrode that is exposed to the described valve body outside to being electrically connected with described annular magnet coil around described annular magnet coil, is used for making described opening/closing move to the described second place from described primary importance under described electric signal effect.
10. as the regulating control that in claim 9, proposed, each respectively disposes three O type rings along periphery wherein said first to fourth electromagnetic valve, only need they are inserted respectively in each that forms for electromagnetic valve in the described regulator block and get final product when described first to fourth electromagnetic valve is installed, to keep the sealing state between described first to the 3rd these liquid mouths, to make installing first to fourth electromagnetic valve.
11. as the regulating control that in claim 9, is proposed, wherein said first and second bumpers each each is formed by a shock absorber cylinder and a damper cap in described regulating control, and described first and second pressure accumulators each each is covered by a pressure accumulator tube, pressure accumulator and an accumulator spring forms in described regulator block.
12. the regulating control that is proposed as requiring in 9, the wherein said second liquid mouth comprises two mutual relative holes that penetrate described pedestal, and the nozzle of a fluctuating that is used to reduce the hydraulic pressure passed by the described second liquid oral instructions and one are used for reducing immediately the boiler check valve that described second intraluminal fluid presses and are installed in respectively in described two holes.
13. one kind be used to have at least one wheel of being furnished with a car side brake, one can have the anti-skid brake system of an outlet by what the braking step drove by the braking step of vehicle driver operation and one with the vehicle of master control cylinder that braking liquid powered vehicle drg is provided, described system comprises:
A vehicle-wheel speed sensor, described sensor configuration are used to measure the speed of wheel on described wheel;
A pressure generation part, described part comprise that an electrical motor and at least one are by described electric motor driven liquid pump with an inlet and an outlet;
23 three-way electromagnetic valves, described electromagnetic valve has the first liquid mouth, second a liquid mouth that is communicated with described wheel braking cylinder and the 3rd liquid mouth that is communicated with the described inlet of described liquid pump that all are communicated with the described outlet of described liquid pump and described master control cylinder, and described electromagnetic valve can only be interconnected the described first and second liquid mouths to make with the primary importance that increases described wheel brake cylinder pressure and one the described second and the 3rd liquid mouth to move between being interconnected with the second place that reduces described wheel brake cylinder pressure at one;
A bumper, described bumper is communicated with the described outlet of described liquid pump, is used for temporarily holding the braking liquid that flows out from described liquid pump, to reduce the fluctuating of the hydraulic pressure that described liquid pump produces;
A pressure accumulator, described pressure accumulator is communicated with the described inlet of described liquid pump, is used for temporarily holding the liquid that flows out from described 23 three-way electromagnetic valves, to reduce the hydraulic pressure in described 23 three-way electromagnetic valves immediately; And
A control setup, be used to control the work of described 23 three-way electromagnetic valves, to increase, to reduce or keep the pressure of described wheel braking cylinder, described control setup receives the speed signal from described vehicle-wheel speed sensor, to valve drive signal of described electromagnetic valve output with a predetermined time interval, thereby make described electromagnetic valve in described predetermined time interval, under described valve drive signal effect, remain on the described primary importance or the described second place
Described 23 three-way electromagnetic valves comprise:
A valve body, described valve body has one and reception is arranged from the described second liquid mouth of the described first liquid mouth of the liquid of described pressure generation part, inflow/described liquid of outflow with discharge the pedestal of described the 3rd liquid mouth of described liquid, and an end seal bonded assembly with described pedestal is sealed the end cap of the described end of described pedestal;
A next door, be used for one in described valve body chamber that is surrounded by described pedestal and end cap is divided into one first chamber and one second chamber, there is first opening that described first chamber is communicated with described second chamber in described next door, described first chamber is communicated with the described first liquid mouth, and described second chamber is communicated with the described second and the 3rd liquid mouth;
An opening/closing, described device can along along the axial motion of valve body, under an electric signal effect, alternately open and close described first opening and described the 3rd liquid mouth, described device is in a primary importance of closing described the 3rd liquid mouth and opening described first opening at a normal state that does not add described electric signal, or be in the second place of closing described first opening and opening described the 3rd liquid mouth, thereby the described first liquid mouth be communicated with the described second liquid mouth or the described second liquid mouth is communicated with described the 3rd liquid mouth a foment that has added described electric signal; And
An electromagnetic assembly, described assembly has an annular magnet coil, an electrode that is exposed to the described valve body outside that is electrically connected around the line tube and a pair of and described annular magnet coil of described annular magnet coil, is used for making described opening/closing move to the described second place from described primary importance under described electric signal effect.
14. as the anti-skid brake system that is proposed in claim 13, wherein said valve drive signal is a pulse width modulating signal.
15. as the anti-skid brake system that is proposed in claim 13, wherein said valve drive signal is a relay system control signal.
16. as the anti-skid brake system that in claim 13, is proposed, the wherein said second liquid mouth comprises two mutual relative holes that penetrate described pedestal, and the nozzle of a fluctuating that is used to reduce the hydraulic pressure passed by the described second liquid oral instructions and one are used for reducing immediately the boiler check valve that described second intraluminal fluid presses and are installed in respectively in described two holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95196298 CN1164209A (en) | 1995-08-18 | 1995-11-02 | 2-position 3-way solenoid valve, modulator and anti-lock brake system with the valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR25383/95 | 1995-08-18 | ||
| CN 95196298 CN1164209A (en) | 1995-08-18 | 1995-11-02 | 2-position 3-way solenoid valve, modulator and anti-lock brake system with the valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1164209A true CN1164209A (en) | 1997-11-05 |
Family
ID=5083187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95196298 Pending CN1164209A (en) | 1995-08-18 | 1995-11-02 | 2-position 3-way solenoid valve, modulator and anti-lock brake system with the valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1164209A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102076987A (en) * | 2008-07-02 | 2011-05-25 | 奥林斯赛车公司 | Electrically controlled valve arrangement for a shock absorber |
| CN102745182A (en) * | 2012-07-11 | 2012-10-24 | 广东机电职业技术学院 | Auxiliary braking system of centrifugal hydraulic light vehicle |
| CN104235474A (en) * | 2014-09-26 | 2014-12-24 | 新乡北方液压传动机械有限公司 | Two-position and three-way solenoid valve |
| CN107235039A (en) * | 2016-03-28 | 2017-10-10 | 株式会社万都 | The valve block of electrically controlled brake system |
| CN113365889A (en) * | 2019-02-15 | 2021-09-07 | 采埃孚商用车系统汉诺威有限公司 | Parking brake system having an ABS control for individual wheels |
| CN115285096A (en) * | 2021-05-03 | 2022-11-04 | 现代摩比斯株式会社 | Three-way solenoid valve, method for controlling same and vehicle brake system comprising same |
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1995
- 1995-11-02 CN CN 95196298 patent/CN1164209A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076987A (en) * | 2008-07-02 | 2011-05-25 | 奥林斯赛车公司 | Electrically controlled valve arrangement for a shock absorber |
| CN102745182A (en) * | 2012-07-11 | 2012-10-24 | 广东机电职业技术学院 | Auxiliary braking system of centrifugal hydraulic light vehicle |
| CN102745182B (en) * | 2012-07-11 | 2015-07-01 | 广东机电职业技术学院 | Auxiliary braking system of centrifugal hydraulic light vehicle |
| CN104235474A (en) * | 2014-09-26 | 2014-12-24 | 新乡北方液压传动机械有限公司 | Two-position and three-way solenoid valve |
| CN104235474B (en) * | 2014-09-26 | 2017-08-25 | 新乡北方液压传动机械有限公司 | A kind of two-bit triplet magnetic valve |
| CN107235039A (en) * | 2016-03-28 | 2017-10-10 | 株式会社万都 | The valve block of electrically controlled brake system |
| CN107235039B (en) * | 2016-03-28 | 2019-10-08 | 株式会社万都 | The valve block of electrically controlled brake system |
| US10793129B2 (en) | 2016-03-28 | 2020-10-06 | Mando Corporation | Valve block of electronic control brake system |
| CN113365889A (en) * | 2019-02-15 | 2021-09-07 | 采埃孚商用车系统汉诺威有限公司 | Parking brake system having an ABS control for individual wheels |
| CN113365889B (en) * | 2019-02-15 | 2023-07-07 | 采埃孚商用车系统汉诺威有限公司 | Parking brake system with ABS control for individual wheels |
| CN115285096A (en) * | 2021-05-03 | 2022-11-04 | 现代摩比斯株式会社 | Three-way solenoid valve, method for controlling same and vehicle brake system comprising same |
| CN115285096B (en) * | 2021-05-03 | 2023-11-28 | 现代摩比斯株式会社 | Three-way electromagnetic valve, method for controlling same and vehicle braking system comprising same |
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