CN108891400A - New-energy automobile air-pressure brake energy feedback piston type blocks control valve - Google Patents
New-energy automobile air-pressure brake energy feedback piston type blocks control valve Download PDFInfo
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- CN108891400A CN108891400A CN201810963463.6A CN201810963463A CN108891400A CN 108891400 A CN108891400 A CN 108891400A CN 201810963463 A CN201810963463 A CN 201810963463A CN 108891400 A CN108891400 A CN 108891400A
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- 230000001172 regenerating effect Effects 0.000 claims abstract description 12
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 238000010248 power generation Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 6
- 229910017435 S2 In Inorganic materials 0.000 claims 1
- 238000005381 potential energy Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005562 fading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention is that new-energy automobile air-pressure brake energy feedback piston type blocks control valve, including brake pedal brake valve to connect air-pressure brake pipeline, and air-pressure brake brake piping is connected to service braking system work；Brake pedal brake valve is also connected with braking light switch and braking analog sensor；Braking light switch and braking analog sensor and throttle analog sensor are connected to entire car controller VCU, and entire car controller VCU passes through electric machine controller MCU to electric power generation retarder brake, energy regenerating to power battery again；It is equipped between the brake pedal brake valve, air-pressure brake brake piping and blocks control valve, while control valve being blocked to be additionally coupled to entire car controller VCU.The present invention is exactly by concatenating two identical blocking control valves in the two-way air-pressure brake conduit that automobile brake pedal brake valve exports, with various working state, the kinetic energy of vehicle and/or potential energy are converted into power battery electric energy to store, to save the energy.
Description
Technical field
The present invention relates to new-energy automobile, specifically new-energy automobile air-pressure brake energy feedback piston type blocks control
Valve.
Background technique
New energy vehicle generally has energy regenerating design at present.Due to braking aspect regulation（Such as GB 7258, GB 12676
Deng）It is required that limitation, driver step on foot pedal, most of motor vehicle braking system can work asynchronously, and drive friction of rest material and vehicle
The phase mutual friction of high speed rotary grinding material is taken turns, brake force is generated, vehicle is forced to stop.A large amount of vehicle energies or potential energy is all during this
Useless thermal energy has been changed into, has been slatterned；When lower long slope, these thermal energy will affect vehicle brake thermal stability, cause to brake
Device heat fading.
Fig. 1 is existing Pneumatic braking system partial schematic diagram.
Fig. 2 is existing brake energy recovering system frame flow chart.
1 is gas receiver in Fig. 1（Rear axle）, 2 be gas receiver（Preceding bridge）, 3 mouthfuls are brake pedal braking valve outlets；5 be with
The servo-actuated braking light switch of brake pedal brake valve mechanical attachment, 6 be the simulation servo-actuated with brake pedal brake valve mechanical attachment
Quantity sensor judges that brake pedal steps on depth for entire car controller VCU；7 be rear axle relay valve, and 8 be relay valve of front axle, 9
It is brake pedal brake valve, 11 and 12 are 9 two individual gas sources input ports of brake pedal brake valve；21/22 is brake pedal system
Bridge and rear axle delivery outlet before dynamic valve 9.
In order to guarantee vehicle driving safety, the energy of driving motor recycling is very limited, since braking system participates in, undoubtedly makes
It is lost in vain at the energy that can much make full use of, can not be generated electricity retarder brake by driving motor, carried out energy and returned
It receives.
Therefore vehicle needs Pneumatic braking system to realize following functions：
When vehicle high-speed or lower gentle slope, driver's majority of case will not encounter emergency braking, and usually release throttle is stepped on
Plate gently steps on brake pedal, by vehicle sliding retarder brake, can save the energy, while can reduce tire wear, at this time gas
Pressure braking system can not devote oneself to work.
Speed is higher, and drive motor changes into generator sending voltage could be sufficiently high, gives power battery charging.If vehicle
Speed is very low（Such as≤15km/h）, the electricity that driving motor issues is just insufficient, and voltage is not high, power battery charging can not be given,
At this time if brake pedal is still operated, Pneumatic braking system just needs to devote oneself to work.
Summary of the invention
The present invention can be according to vehicle working condition for entire car controller VCU（At a high speed, brake pedal step on it is shallow, step on braking and step on
Plate speed is slow；Accelerator pedal is not operated）, drive motor is changed into electrical power generators, by the kinetic energy of vehicle and/or
Potential energy is converted into power battery electric energy and stores, and to save the energy, spy proposes that new-energy automobile air-pressure brake energy feedback is living
Plug blocks control valve.
The technical scheme is that, new-energy automobile air-pressure brake energy feedback piston type blocks control valve, packet thus
Brake pedal brake valve is included, brake pedal brake valve connects air-pressure brake pipeline, and air-pressure brake brake piping is connected to driving system
Dynamic system work；
Brake pedal brake valve is also connected with braking light switch and braking analog sensor；
Braking light switch and braking analog sensor and throttle analog sensor are connected to entire car controller VCU, whole
Vehicle controller VCU passes through electric machine controller MCU to electric power generation retarder brake, energy regenerating to power battery again；Its feature exists
In：It is equipped between the brake pedal brake valve, air-pressure brake brake piping and blocks control valve, wherein blocking control valve is
Piston cylinder operator, while piston type blocks control valve to be additionally coupled to entire car controller VCU.
Further improve is：It includes upper housing 71 and lower case 72 that the piston type, which blocks control valve,；Upper housing
Disjunctor double-piston 77 is equipped between 71 and lower case 72；Upper housing 71 and 77 small piston of disjunctor double-piston form B chamber, and side is also set
There is B chamber piston to control gas port 4；It raises upward in the middle part of lower case 72 and is equipped with valve seal valve port 74, valve seal valve port 74
Outlet 1 is equipped with to side to outlet 2 23/24, lower case 72 is had by protrusion；
Middle part is constituted close to rubber seal plain cushion 73 is had with the valve seal valve port 74 of lower case 72 in disjunctor double-piston 77
Seal element；
In upper housing 71 and 72 axis of lower case to up and down motion, small piston only moves in upper housing 71 disjunctor double-piston 77,
Big piston only moves in lower case 72；Cavity C is constituted with upper housing 71 and lower case 72 among piston, 71 side of upper housing is also
Equipped with C chamber air pressure balance venthole 32；
Disjunctor double-piston 77 constitutes A chamber in lower case 72, and is equipped with return spring 78 and acts in big piston S2 plane；Disjunctor
The big piston of double-piston 77 is equipped with rubber seal 75 and lower case 72 constitutes dynamic sealing；The small piston of disjunctor double-piston 77 is equipped with
Rubber seal 76 and upper housing 71 constitute dynamic sealing.
Further improve is：The piston type blocks the control valve connection relationship to be：Including gas receiver gas source 78, storage
Inflator gas source 78 is connected to pressure regulator valve 84, and the output of pressure regulator valve 84 is connected with blocking control valve by two-position three way normally closed solenoid valve 83,
83 one end of two-position three way normally closed solenoid valve connects double-piston B chamber and controls gas port 4, another termination atmospheric exhaust interface 31；
Blocking control valve to be divided into rear axle braking system blocks control valve 81 and preceding bridge braking system to block control valve 82.
Further improve is：The piston type blocks control valve to match vehicle performance, by the way that pressure regulator valve 84 is arranged
Or pass through the big small piston effective atmosphere active area ratio setting of disjunctor double-piston 77.
Beneficial effect：
The present invention is exactly complete by concatenating two in the two-way air-pressure brake conduit that automobile brake pedal brake valve exports
The kinetic energy of vehicle and/or potential energy are converted into power battery electric energy and are stored by exactly the same blocking control valve with various working state
Come, to save the energy.
1, when driver unclamps throttle, while light brake pedal（Such as≤15% or≤20% load condition.）, need
It wants driving motor to enter Generator Status, when feedback energy is braked, by the control of entire car controller VCU, blocks normal brake application
Pedal brake valve exports gas circuit, releases conventional air pressure brake system device friction catch.As far as possible by vehicle energy or potential energy
It is recovered to power battery, vehicle retarder brake is made by the braking of driving motor electrification feedback.
2, it when power cell of vehicle electricity is very full, cannot recharge；Or when other work condition states, entire car controller
VCU does not do any control, does not influence conventional braking system normal work；Driving motor is without regenerative braking.
3, when speed is relatively low（Such as speed≤20km/h or≤10km/h）, driving motor generating voltage is less than
Electrokinetic cell system voltage can not give power battery charging；Entire car controller VCU does not do any control, does not influence conventional brake
System worked well.
4, stepping on when brake pedal is more than to a certain degree, to represent vehicle and encounter more urgent thing, and VCU pairs of entire car controller
Normal brake system gas circuit has no effect, the output of brake pedal brake valve, directly controls normal all compressed air brake systems
System.
5, pass through driving motor power generation retarder brake, energy regenerating to power battery, it is possible to reduce tire and brake-shoe, system
Dynamic hub abrasion, reduces the temperature of tire and brake hub, extends tyre life, reduce brake hub because caused by heat fading brake fade draw
The accident risen.
6, when battery capacity is fuller, driving motor is in electric discharge anti-dragged brake（Motor driven wheel direction of rotation and vehicle
Driving direction is opposite）When, entire car controller can block normal brake application pedal brake valve according to control strategy and security needs
Gas circuit is exported, conventional air pressure brake system device friction catch is released.
Detailed description of the invention
Fig. 1 is current Pneumatic braking system partial schematic diagram.
Fig. 2 is current brake energy recovering system frame flow chart.
1 is gas receiver in Fig. 1（Rear axle）, 2 be gas receiver（Preceding bridge）, 3 mouthfuls be brake pedal braking valve outlet, 5 be with
The servo-actuated braking light switch of brake pedal brake valve mechanical attachment, 6 be the simulation servo-actuated with brake pedal brake valve mechanical attachment
Quantity sensor judges that brake pedal steps on depth for entire car controller VCU, and 7 be rear axle relay valve, and 8 be relay valve of front axle, 9
It is brake pedal brake valve（Series system）, 11 and 12 be two individual gas sources input ports of brake pedal brake valve, and 21/22 is system
Dynamic pedal brake valve outlet.
Fig. 3 is Pneumatic braking system partial process view of the invention.
Fig. 4 is Pneumatic braking system partial schematic diagram of the invention.
Fig. 5 is the structure chart that inventive piston formula blocks control valve.
78 be gas receiver gas source in Fig. 4, and 81 be that foot brake rear axle braking system blocks control valve, and 82 be bridge system before foot brake
Dynamic system blocking control valve, 83 be two-position three way normally closed solenoid valve, and 84 be pressure regulator valve, and 61,62 be to receive entire car controller
The power supply of VCU control, 21/22 outlet one, 23/24 is outlet two, and 1 is two-position three way air inlet high-pressure air source, and 4 be diaphragm B chamber
Gas port is controlled, 31 be two-position three way air inlet hyperbaric atmosphere interface.
77 be disjunctor double-piston in Fig. 5, and S1 is disjunctor double-piston 77 in B chamber small piston upper surface, and S2 is disjunctor double-piston
77 in the big piston lower surface of A chamber, and 4 be diaphragm B chamber control gas port, and 71 be upper housing, and 72 be lower case, and 73 be rubber seal
Plain cushion, 74 be valve seal valve port, and 78 be disjunctor double-piston return spring, and 76 be 77 small piston sealing ring of disjunctor double-piston, 75
The big piston seal of disjunctor double-piston 77.
Specific embodiment
Shown in Fig. 3-5 of the present invention.
New-energy automobile air-pressure brake energy feedback piston type blocks control valve, including brake pedal brake valve, braking to step on
Plate brake valve connects air-pressure brake pipeline, and air-pressure brake brake piping is connected to service braking system work；
Brake pedal brake valve is also connected with braking light switch and braking analog sensor；
Braking light switch and braking analog sensor and throttle analog sensor are connected to entire car controller VCU, whole
Vehicle controller VCU passes through electric machine controller MCU to electric power generation retarder brake, energy regenerating to power battery again；Described
It is equipped between brake pedal brake valve, air-pressure brake brake piping and blocks control valve, wherein blocking control valve is piston cylinder operator,
Piston type blocks control valve to be additionally coupled to entire car controller VCU simultaneously.
It includes upper housing 71 and lower case 72 that the piston type, which blocks control valve,；It is set between upper housing 71 and lower case 72
There is disjunctor double-piston 77；Upper housing 71 and 77 small piston of disjunctor double-piston form B chamber, and side is additionally provided with B chamber piston control air flue
Mouth 4；It raises upward in the middle part of lower case 72 and is equipped with valve seal valve port 74, valve seal valve port 74 is by protrusion to having out
Mouth 2 23/24, lower case 72 are equipped with outlet 1 to side；
Middle part is constituted close to rubber seal plain cushion 73 is had with the valve seal valve port 74 of lower case 72 in disjunctor double-piston 77
Seal element；
In upper housing 71 and 72 axis of lower case to up and down motion, small piston only moves in upper housing 71 disjunctor double-piston 77,
Big piston only moves in lower case 72；Cavity C is constituted with upper housing 71 and lower case 72 among piston, 71 side of upper housing is also
Equipped with C chamber air pressure balance venthole 32；
Disjunctor double-piston 77 constitutes A chamber in lower case 72, and is equipped with return spring 78 and acts in big piston S2 plane；Disjunctor
The big piston of double-piston 77 is equipped with rubber seal 75 and lower case 72 constitutes dynamic sealing；The small piston of disjunctor double-piston 77 is equipped with
Rubber seal 76 and upper housing 71 constitute dynamic sealing.
The piston type blocks the control valve connection relationship to be：Including gas receiver gas source 78, gas receiver gas source 78 is connected to tune
Pressure valve 84, the output of pressure regulator valve 84 are connected with piston type by two-position three way normally closed solenoid valve 83 and block control valve, and two-position three way is normal
Close 83 one end of solenoid valve connection double-piston B chamber control gas port 4, another termination atmospheric exhaust interface 31；
Piston type blocks control valve to be divided into rear axle braking system and blocks control valve 81 and preceding bridge braking system blocking control valve 82.
The piston type blocks control valve to match vehicle performance, by setting pressure regulator valve 84 or passes through disjunctor double-piston
77 big small piston effective atmosphere active area ratio settings.
Vehicle is in use, there are following several states.
One, driving motor regenerative braking is not needed, conventional air pressure braking system is needed to work.
When usual full-vehicle control VCU is not controlled, the 77 B chamber of disjunctor double-piston of control valve is blocked to control gas port 4 not
Logical high pressure gas, directly communicates with atmosphere.Rubber seal plain cushion 73 and valve seal valve port 74 under the active force of return spring 78,
It is in the open state.At this point, brake pedal brake valve output pressure enters A chamber by outlet 1, disjunctor is further pushed
Double-piston 77 moves up, and rubber valve port 73 and valve seal plane 74 are in full open position.Export one 21 and outlet two
23 is straight-through, directly controls the devices such as other valves of conventional braking system, conventional braking system is not affected.
Two, driving motor regenerative braking, but do not need the work of conventional air pressure braking system
If entire car controller VCU judges current vehicle condition, driving motor electrification feedback is needed to brake.Pass through vehicle control unit controls
Two-position three way normal closed gate 83 be powered, control 77 B chamber of disjunctor double-piston control gas port 4, connect gas source, due to B chamber air pressure
Active force acts on the surface S1, overcomes the restoring force of return spring 78, and disjunctor double-piston 77 is pushed to move downward, and rubber seal is flat
Pad 73 and valve seal valve port 74 are in close state.
The pneumatic circuit of brake pedal brake valve with braking system below has been blocked at this time.Conventional braking system just not work
Make, driving motor switchs to Generator Status at this time, vehicle energy is recycled as far as possible, the frictional heating of brake drum or brake disc is done
Function can be eliminated.
Entire car controller can according to need, such as current of electric, speed, power battery SOC state, temperature, adjustment driving
Motor regenerative braking power, i.e. change feeding braking energy back recycle speed, adjust speed and deceleration.
Three, conventional air pressure braking system works, and driving motor regenerative braking carries out simultaneously
On the basis of the state of state two, if brake pedal step on it is deep, outlet one 21 output pressures it is higher, need vehicle
Generate biggish brake force.
Since the piston S2 big area ratio small piston S1 area of disjunctor double-piston 77 is big, same pressure acts on the surface S2 and S1
Surface, the gas pressure power acted on S2, which is greater than, acts on the gas pressure power of S1, so that it may push disjunctor double-piston 77 to
Upper movement keeps rubber seal plain cushion 73 and valve seal valve port 74 in the open state.
When outlet 1 air pressure reach certain pressure, gas pressure power on the big piston S2 of A chamber is acted on, in conjunction with return bullet
78 restoring force of spring is greater than B chamber gas pressure active force on small piston S1, at rubber seal plain cushion 73 and valve seal valve port 74
In opening state.It exporting one 21 mouthfuls and outlet 2 23 communicates, braking system is started to work, and driving brake chamber generates brake force,
The regenerative braking of vehicle traction motor and conventional air pressure braking work at the same time.
A chamber highest blocks big piston S2 effective atmosphere active area and small piston S1 of the atmospheric pressure value by disjunctor double-piston 77
Effective atmosphere active area is than control；A chamber highest blocks atmospheric pressure value by the control of 84 pressure regulator valve output pressures in Fig. 4 simultaneously.
Therefore in order to guarantee vehicle driving safety and Brake energy recovery efficiency, A chamber highest blocking atmospheric pressure value will basis
Vehicle control unit controls strategy and vehicle safety be adjusted, driving motor feedback ability, may be selected to reach in A chamber air pressure
When 150kPa or 300kPa（Or according to vehicle actual demand state atmospheric pressure value）, rubber seal plain cushion 73 and valve seal valve port
74 turn on.
Four, driver's foot leaves brake pedal and releases braking
Full-vehicle control VCU detects brake pedal brake valve linkage brake switch cut-off signal, braking analog sensor signal,
Confirm that driver's cabin person does not carry out brake operating to brake pedal brake valve.
Two-position three way normally closed solenoid valve 83 powers off, 83 return of two-position three way normally closed solenoid valve, will block control valve B chamber air pressure
It controls diaphragm B chamber and controls 4 off-load of gas port, be connected to atmosphere.
Rubber seal plain cushion 73 and valve seal valve port 74 stay open under one 21 gas pressures of outlet 2 23 and outlet
State.It exports 2 23 delivery outlet air pressures and atmosphere is discharged to by outlet 1, release braking.
By the restoring force of return spring 78, rubber seal plain cushion 73 and valve seal valve port 74 are kept open.
Claims (4)
1. new-energy automobile air-pressure brake energy feedback piston type blocks control valve, including brake pedal brake valve, brake pedal
Brake valve connects air-pressure brake brake piping, and air-pressure brake brake piping is connected to service braking system work；Brake pedal system
Dynamic valve is also connected with braking light switch and braking analog sensor；Braking light switch and braking analog sensor and throttle
Analog sensor is connected to entire car controller VCU, and entire car controller VCU passes through electric machine controller MCU to electric power generation again
Retarder brake, energy regenerating to power battery；It is characterized in that：In the brake pedal brake valve, air-pressure brake brake pipe
It is equipped with concatenation between road and blocks control valve, wherein blocking control valve piston cylinder operator, while piston type blocks control valve to be also connected with
To entire car controller VCU.
2. new-energy automobile air-pressure brake energy feedback piston type according to claim 1 blocks control valve, feature exists
In：It includes upper housing that the piston type, which blocks control valve,（71）And lower case（72）；Upper housing（71）And lower case（72）It
Between be equipped with disjunctor double-piston（77）；Upper housing（71）With disjunctor double-piston（77）Small piston forms B chamber, and it is living that side is additionally provided with B chamber
Plug control gas port（4）；Lower case（72）Middle part raises upward and is equipped with valve seal valve port（74）, valve seal valve port（74）
By protrusion to having outlet two（23/24）, lower case（72）Outlet one is equipped with to side（21/22）；
Disjunctor double-piston（77）Middle part is to having rubber seal plain cushion（73）, with lower case（72）Sealing valve port（74）Structure
At sealing element；
Disjunctor double-piston（77）In upper housing（71）And lower case（72）Axis is to up and down motion, and small piston is only in upper housing（71）
Middle movement, big piston is only in lower case（72）Middle movement；Piston centre and upper housing（71）And lower case（72）Cavity C is constituted,
Upper housing（71）Side is additionally provided with the open to atmosphere air pressure balance venthole 32 of C chamber；
Disjunctor double-piston（77）Big piston in lower case（72）A chamber is constituted, return spring is equipped with（78）, act on big piston S2
In plane；Disjunctor double-piston（77）Big piston be equipped with rubber seal（75）With lower case（72）Constitute dynamic sealing；Disjunctor is double
Piston（77）Small piston be equipped with rubber seal（76）With upper housing（71）Constitute dynamic sealing.
3. new-energy automobile air-pressure brake energy feedback piston type according to claim 1 or 2 blocks control valve, feature
It is：The piston type blocks the control valve connection relationship to be：Including gas receiver gas source（78）, gas receiver gas source（78）It is connected to tune
Pressure valve（84）, pressure regulator valve（84）Output passes through two-position three way normally closed solenoid valve（83）It is connected with blocking control valve, two-position three way is normal
Close solenoid valve（83）One end connects double-piston B chamber and controls gas port（4）, another termination atmospheric exhaust interface（31）；
It blocks control valve to be divided into rear axle braking system and blocks control valve（81）Control valve is blocked with preceding bridge braking system（82）.
4. new-energy automobile air-pressure brake energy feedback piston type according to claim 3 blocks control valve, feature exists
In：The piston type blocks control valve to match vehicle performance, by the way that pressure regulator valve is arranged（84）Or disjunctor double-piston（77）Greatly
Small piston effective atmosphere active area proportion adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963463.6A CN108891400A (en) | 2018-08-23 | 2018-08-23 | New-energy automobile air-pressure brake energy feedback piston type blocks control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963463.6A CN108891400A (en) | 2018-08-23 | 2018-08-23 | New-energy automobile air-pressure brake energy feedback piston type blocks control valve |
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|---|---|
| CN108891400A true CN108891400A (en) | 2018-11-27 |
Family
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| CN201810963463.6A Pending CN108891400A (en) | 2018-08-23 | 2018-08-23 | New-energy automobile air-pressure brake energy feedback piston type blocks control valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114572177A (en) * | 2020-12-02 | 2022-06-03 | 郑州宇通客车股份有限公司 | Brake valve, new energy vehicle using brake valve and brake control method |
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2018
- 2018-08-23 CN CN201810963463.6A patent/CN108891400A/en active Pending
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| CN102745183A (en) * | 2012-07-11 | 2012-10-24 | 北京理工大学 | Energy-feedback active control type air braking system |
| WO2017102044A1 (en) * | 2015-12-15 | 2017-06-22 | Wabco Europe Bvba | Valve unit for modulating the pressure in a pneumatic brake system |
| CN108137019A (en) * | 2015-12-15 | 2018-06-08 | 威伯科欧洲有限责任公司 | For the valve cell of the pressure modulation in pneumatic braking system |
| CN207725229U (en) * | 2017-12-04 | 2018-08-14 | 吉林大学 | A kind of air pressure type braking energy recovery system |
| CN208730974U (en) * | 2018-08-23 | 2019-04-12 | 东风华神汽车有限公司 | New-energy automobile air-pressure brake energy feedback piston type blocks control valve |
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| CN114572177A (en) * | 2020-12-02 | 2022-06-03 | 郑州宇通客车股份有限公司 | Brake valve, new energy vehicle using brake valve and brake control method |
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