CN208730974U - 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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- CN208730974U CN208730974U CN201821359008.7U CN201821359008U CN208730974U CN 208730974 U CN208730974 U CN 208730974U CN 201821359008 U CN201821359008 U CN 201821359008U CN 208730974 U CN208730974 U CN 208730974U
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Abstract
The utility model 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 utility model 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 utility model relates to new-energy automobile, specifically new-energy automobile air-pressure brake energy feedback piston type blocks control
Valve processed.
Background technique
New energy vehicle generally has energy regenerating design at present.Due to braking aspect regulation (such as GB 7258, GB 12676
Deng) limitation is required, driver steps on foot pedal, and most of motor vehicle braking system can work asynchronously, and drives 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 (rear axle) in Fig. 1, and 2 be gas receiver (preceding bridge), and 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, usually release throttle
Pedal gently steps on brake pedal, by vehicle sliding retarder brake, can save the energy, while can reduce tire wear, at this time
Pneumatic 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), and the electricity that driving motor issues is just insufficient, and voltage is not high, can not give power battery charging,
At this time if brake pedal is still operated, Pneumatic braking system just needs to devote oneself to work.
Utility model content
The utility model in order to entire car controller VCU can according to vehicle working condition (high speed, brake pedal step on it is shallow, step on system
Dynamic pedal 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, to save the energy, spy proposes that new-energy automobile air-pressure brake energy returns
It presents piston type and blocks control valve.
The technical solution of the utility model is that new-energy automobile air-pressure brake energy feedback piston type blocks control thus
Valve, including brake pedal brake valve, brake pedal brake valve connect air-pressure brake pipeline, and air-pressure brake brake piping is connected to row
The work of vehicle braking system；
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, entire car controller VCU pass through electric machine controller MCU to electric power generation retarder brake, energy regenerating to power battery again；Its
It is characterized in that: being equipped between the brake pedal brake valve, air-pressure brake brake piping and block control valve, wherein blocking control
Valve processed is piston cylinder operator, while piston type blocks control valve to be additionally coupled to entire car controller VCU.
Further improvement is that 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 diaphragm B chamber 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 to having rubber seal plain cushion 73 in disjunctor double-piston 77,74 structure of valve seal valve port with lower case 72
At sealing element；
Disjunctor double-piston 77 in upper housing 71 and 72 axis of lower case to up and down motion, only transport in upper housing 71 by small piston
Dynamic, big piston only moves in lower case 72；Cavity C, 71 side of upper housing are constituted with upper housing 71 and lower case 72 among piston
Face is additionally provided 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 on big piston lower surface S2
Under；The big piston seal 75 and lower case 72 of disjunctor double-piston 77 constitute dynamic sealing；The small piston of disjunctor double-piston 77 seals
Circle 76 constitutes dynamic sealing with upper housing 71.
Further improvement is that the piston type blocks control valve connection relationship are as follows: including gas receiver gas source 80, storage
Inflator gas source 80 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 diaphragm 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 improvement is that 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.
The utility model has the advantages that
The utility model is exactly by going here and there in the two-way air-pressure brake conduit that automobile brake pedal brake valve exports
Two identical blocking control valves are connect, with various working state, the kinetic energy of vehicle and/or potential energy are converted into power battery electricity
It can store, to save the energy.
1, when driver unclamps throttle, while light brake pedal is (such as≤15% or≤20% load condition.), it needs
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 (rear axle) in Fig. 1, and 2 be gas receiver (preceding bridge), and 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, 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 the Pneumatic braking system partial process view of the utility model.
Fig. 4 is the Pneumatic braking system partial schematic diagram of the utility model.
Fig. 5 is the structure chart that the utility model piston type blocks control valve.
80 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.
In Fig. 5, S1 is small piston upper surface, and S2 is big piston lower surface, and 4 be diaphragm B chamber control gas port, 71 be on
Shell, 72 be lower case, and 73 be rubber seal plain cushion, and 74 be valve seal valve port, and 75 big piston seals, 76 be that small piston is close
Seal, 77 be disjunctor double-piston, and 78 be return spring.
Specific embodiment
Shown in the utility model Fig. 3-5.
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, entire car controller VCU pass 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, wherein blocking control valve is piston
Formula structure, while piston type blocks control valve to be additionally coupled to entire car controller VCU.
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 diaphragm B chamber 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 to having rubber seal plain cushion 73 in disjunctor double-piston 77,74 structure of valve seal valve port with lower case 72
At sealing element；
Disjunctor double-piston 77 in upper housing 71 and 72 axis of lower case to up and down motion, only transport in upper housing 71 by small piston
Dynamic, big piston only moves in lower case 72；Cavity C, 71 side of upper housing are constituted with upper housing 71 and lower case 72 among piston
Face is additionally provided 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 on big piston lower surface S2
Under；The big piston seal 75 and lower case 72 of disjunctor double-piston 77 constitute dynamic sealing；The small piston of disjunctor double-piston 77 seals
Circle 76 constitutes dynamic sealing with upper housing 71.
The piston type blocks control valve connection relationship are as follows: including gas receiver gas source 80, gas receiver gas source 80 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 diaphragm 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 diaphragm B chamber of disjunctor double-piston of control valve is blocked to control air flue
4 obstructed high pressure gas of mouth, directly communicate with atmosphere.The effect of rubber seal plain cushion 73 and valve seal valve port 74 in return spring 78
It is in the open state under power.At this point, brake pedal brake valve output pressure enters A chamber by outlet 1, further push away
Dynamic disjunctor double-piston 77 moves up, and rubber valve port 73 and valve seal plane 74 are in full open position.Export one 21 Hes
It exports 2 23 to lead directly to, 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 entire car controller
The two-position three way normal closed gate 83 of control is powered, and the diaphragm B chamber of control disjunctor double-piston 77 controls gas port 4, connects gas source,
Since B chamber gas pressure power acts on the S1 of small piston upper surface, the restoring force of return spring 78 is overcome, push disjunctor double-piston
77 move downward, and rubber seal plain cushion 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 is wanted to generate biggish brake force.
Since the piston lower surface S2 big area ratio small piston upper surface S1 area of disjunctor double-piston 77 is big, same pressure is made
Used in big piston lower surface S2 and small piston upper surface S1, the gas pressure power acted on big piston lower surface S2 is greater than effect
The gas pressure power of S1 in small piston upper surface, so that it may push disjunctor double-piston 77 to move upwards, make rubber seal plain cushion 73
It is in the open state with valve seal valve port 74.
When outlet 1 air pressure reach certain pressure, act on gas pressure power under the big piston lower surface S2 of A chamber, in conjunction with
78 restoring force of return spring is greater than B chamber gas pressure active force, rubber seal plain cushion 73 and valve on the S1 of small piston upper surface
It is in the open state to seal valve port 74.It exports one 21 mouthfuls and outlet 2 23 communicates, braking system is started to work, and brake chamber is driven
Brake force is generated, the regenerative braking of vehicle traction motor and conventional air pressure braking work at the same time.
A chamber highest blocks atmospheric pressure value by the big piston lower surface S2 effective atmosphere active area of disjunctor double-piston 77 and small
Piston upper surface S1 effective atmosphere active area is than control；A chamber highest blocks atmospheric pressure value to be exported gas by 84 pressure regulator valves in Fig. 4 simultaneously
The control of pressure.
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, confirmation driver's cabin person do 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 by: 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 (71) and lower case (72) that the piston type, which blocks control valve,；Upper housing (71) and lower case (72) it
Between be equipped with disjunctor double-piston (77)；Upper housing (71) and disjunctor double-piston (77) small piston form B chamber, and side is additionally provided with diaphragm B
Chamber controls 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)
One (21/22) of outlet is equipped with to side to outlet two (23/24), lower case (72) is had by protrusion；
Middle part is to having rubber seal plain cushion (73) in disjunctor double-piston (77), sealing valve port (74) structure with lower case (72)
At sealing element；
Disjunctor double-piston (77) is in upper housing (71) and lower case (72) axis to up and down motion, and small piston is only in upper housing (71)
Middle movement, the only movement in lower case (72) of big piston；Cavity C is constituted with upper housing (71) and lower case (72) among piston,
Upper housing (71) side is additionally provided with the open to atmosphere air pressure balance venthole 32 of C chamber；
The big piston of disjunctor double-piston (77) constitutes A chamber in lower case (72), is equipped with return spring (78) and acts under big piston
Under the S2 of surface；The big piston seal (75) of disjunctor double-piston (77) and lower case (72) constitute dynamic sealing；Disjunctor double-piston
(77) small piston sealing ring (76) and upper housing (71) constitutes dynamic sealing.
3. new-energy automobile air-pressure brake energy feedback piston type according to claim 1 or 2 blocks control valve, feature
Be: the piston type blocks control valve connection relationship are as follows: including gas receiver gas source (80), gas receiver gas source (80) is connected to tune
Pressure valve (84), pressure regulator valve (84) output are connected with blocking control valve by two-position three way normally closed solenoid valve (83), and two-position three way is normal
Close solenoid valve (83) one end connection diaphragm B chamber control gas port (4), another termination atmospheric exhaust interface (31)；
Blocking control valve to be divided into rear axle braking system blocks control valve (81) He Qianqiao braking system to block control valve (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, big by setting pressure regulator valve (84) or disjunctor double-piston (77)
Small piston effective atmosphere active area proportion adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821359008.7U CN208730974U (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 |
|---|---|---|---|
| CN201821359008.7U CN208730974U (en) | 2018-08-23 | 2018-08-23 | New-energy automobile air-pressure brake energy feedback piston type blocks control valve |
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| Publication Number | Publication Date |
|---|---|
| CN208730974U true CN208730974U (en) | 2019-04-12 |
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ID=66032137
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821359008.7U Active CN208730974U (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 |
|---|---|---|---|---|
| CN108891400A (en) * | 2018-08-23 | 2018-11-27 | 东风华神汽车有限公司 | New-energy automobile air-pressure brake energy feedback piston type blocks control valve |
-
2018
- 2018-08-23 CN CN201821359008.7U patent/CN208730974U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891400A (en) * | 2018-08-23 | 2018-11-27 | 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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