CN106828469A - Atmospheric pressure state self-locking electronic brake system - Google Patents
Atmospheric pressure state self-locking electronic brake system Download PDFInfo
- Publication number
- CN106828469A CN106828469A CN201710118935.3A CN201710118935A CN106828469A CN 106828469 A CN106828469 A CN 106828469A CN 201710118935 A CN201710118935 A CN 201710118935A CN 106828469 A CN106828469 A CN 106828469A
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- Prior art keywords
- valve
- magnetic valve
- parking braking
- brake system
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007789 gas Substances 0.000 description 39
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- 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
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
-
- 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
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Regulating Braking Force (AREA)
Abstract
The present invention discloses a kind of atmospheric pressure state self-locking electronic brake system, including air accumulator (1), parking braking controller (10), baroceptor (6), parking braking air chamber (7) and relay valve (4), the air inlet (C) of relay valve (4) is connected with air accumulator (1), its gas outlet (B) is connected with parking braking air chamber (7), and the input of baroceptor (6) is serially connected in the gas circuit between relay valve (4) and parking braking air chamber (7)；The first magnetic valve (2) is additionally provided between the control mouth (A) and air accumulator (1) of relay valve (4), the 3rd magnetic valve (5) is additionally provided between the control mouth (A) and gas outlet (B) of relay valve (4), also include the second magnetic valve (3), the input of the second magnetic valve (3) is connected with the control mouth (A) of relay valve (4).Electronic brake system of the invention, it is simple to operate, safe and reliable.
Description
Technical field
The invention belongs to brake system of car technical field, particularly a kind of atmospheric pressure state simple to operate, safe and reliable
Self-locking electronic brake system.
Background technology
Electronic brake system (EPB) refers to by the when property long braking after the provisional braking in driving conditions and parking
Function is combined, and the technology of stopping brake is realized by electronic control mode.At present, medium-heavy automobile parking braking dress
Put and use air-pressure type electronic holding brake device, use " break brake " principle this kind of holding brake device, by making parking more
Brake chamber is vented, and produces parking brake force.
For overcome medium-heavy automobile air-pressure type electronic parking braking system to exist processing safety not enough, bad adaptability etc.
Shortcoming, Chinese invention patent application (application number：201310345261.2, publication date：On November 27th, 2013) disclose one kind
Air pressure adjustable electronic brake system.The system includes the air accumulator, baroceptor and the parking that are sequentially connected by gas circuit
Brake chamber, and the parking braking controller electrically connected with baroceptor, between the air accumulator and baroceptor
Gas circuit on be also in series with the first magnetic valve, the second magnetic valve is connected with gas circuit after the parking braking air chamber, it is described
First magnetic valve and the second magnetic valve are electrically connected with parking braking controller.The air pressure adjustable electronic brake system is to electricity
The requirement of magnet valve air-tightness is very high, so there is problems with：
1st, when release parked state is kept, if the second magnetic valve occurs gas leakage, gas in parking braking air chamber will be by
Gradually leak, after its pressure value reaches setting lower limit, be likely to result in the dangerous situation of vehicle unexpected parking in the process of moving；
2nd, when parking braking state is kept, if there is gas leakage, gas flow parking braking in air accumulator in the first magnetic valve
Air chamber, parking can be discharged after building up to certain air pressure, when vehicle will be extremely dangerous when ramp is parked.
In a word, the problem of prior art presence is：Security is not high enough, and operation is not easy enough.
The content of the invention
It is an object of the invention to provide a kind of atmospheric pressure state self-locking electronic brake system, simple to operate, safety
It is reliable.
The technical solution for realizing the object of the invention is：
A kind of atmospheric pressure state self-locking electronic brake system, including air accumulator, parking braking controller, air pressure sensing
Device and parking braking air chamber, also including relay valve, the air inlet of the relay valve is connected with air accumulator, its gas outlet and parking system
Taking offence, room is connected, and the input of the baroceptor is serially connected in the gas circuit between relay valve and parking braking air chamber, its letter
Number output end is connected with parking braking controller；The first magnetic valve is additionally provided between the control mouth and air accumulator of relay valve,
The 3rd magnetic valve is additionally provided between the control mouth of relay valve and gas outlet, also including the second magnetic valve, second magnetic valve
Input is connected with the control mouth of relay valve；First magnetic valve, the second magnetic valve, the 3rd magnetic valve respectively with parking braking
Controller is electrically connected.
Compared with prior art, its remarkable advantage is the present invention：
1st, security is good：Atmospheric pressure state self-locking electronic brake system sets up relay valve and the 3rd magnetic valve, even if
There is gas leak phenomenon in system, using relay valve and the 3rd solenoid valve block into auto-lock function carry out gas leakage supplement or will leakage automatically
The gas for entering is released, it is ensured that air pressure value stabilization hyperbar and low pressure gas two states in parking braking air chamber, which increases system
Reliability and security.
2nd, respond rapid：The addition of relay valve causes compressed air to be not passed through magnetic valve and is directly filled with brake chamber, from
And shorten inflationtime；Compressed air is set to be not passed through magnetic valve and be directly discharged into air from relay valve simultaneously, to shorten during deflation
Between, accelerate air chamber inflation/deflation speed, reduce the brake system response time.
3rd, simplify control：Either release parking and still apply parking, the present invention can automatic adjustable pressure remaining former
Beginning state, reduces the complexity of system control.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of atmospheric pressure state self-locking electronic brake system of the present invention.
Fig. 2,3 be respectively Fig. 1 release parking braking when system mode and relay valve working state figure.
Fig. 4,5 be respectively Fig. 1 apply parking braking when system mode and relay valve working state figure.
Fig. 6,7 be respectively Fig. 1 keep parking or non-parking when system mode and relay valve working state figure.
In figure,
1 air accumulator, 2 first magnetic valves, 3 second magnetic valves, 4 relay valves, 5 the 3rd magnetic valves, 6 baroceptors, 7 parkings
Brake chamber, 8 manual mode switch, 9 automatic modes switch, 10 parking braking controllers, 11 parking indicator lamps, 41 housings, 42
Control piston, 43 sealing rings, 44 valves, 45 valve return springs, 46 plate valves, 47 control action of gas source air cavitys, 48 braking operations
Air cavity, A control mouths, B gas outlets, C air inlets, D exhaust outlets.
Specific embodiment
As shown in figure 1, atmospheric pressure state self-locking electronic brake system of the present invention, including air accumulator 1, parking braking control
Device processed 10, baroceptor 6 and parking braking air chamber 7, also including relay valve 4, air inlet C and the air accumulator 1 of the relay valve 4
It is connected, its gas outlet B is connected with parking braking air chamber 7, and the input of the baroceptor 6 is serially connected in relay valve 4 and parking
In gas circuit between brake chamber 7, its signal output part is connected with parking braking controller 10；
Be additionally provided with the first magnetic valve 2 between the control mouth A and air accumulator 1 of relay valve 4, relay valve 4 control mouth A with
The 3rd magnetic valve 5 is additionally provided between the B of gas outlet, also including the second magnetic valve 3, the input and servo of second magnetic valve 3
The control mouth A of valve 4 is connected；
First magnetic valve 2, the second magnetic valve 3, the 3rd magnetic valve 5 are electrically connected with parking braking controller 10 respectively.
The manual mode switch 8, automatic mode switch 9 and parking indicator lamp 11 are also electrically connected with parking braking controller 10
Connect.
Preferably, first magnetic valve 2 is bi-bit bi-pass normally closed solenoid valve.
Second magnetic valve 3 is bi-bit bi-pass normally closed solenoid valve.
3rd magnetic valve 5 is bi-bit bi-pass normally open solenoid valve.
As shown in figure 3, the relay valve 4, including housing 41, and the control piston in housing 41 is arranged on from top to bottom
42nd, valve 44, valve return spring 45 and plate valve 46, the top of the housing 41 are provided with control mouth A, and bottom is provided with exhaust outlet D, one
Side is provided with air inlet C, and opposite side is provided with gas outlet B；
The outside of control piston 42 forms sealing by sealing ring 43 with the inwall of housing 41, housing 41 is divided into and is located at
The control action of gas source air cavity 47 and the braking operation air cavity 48 positioned at bottom on top, the control action of gas source air cavity 47 and control
Donsole A is communicated；
The break-make between the upper end of valve 44 control gas outlet B and exhaust outlet D under the piston 42 positioned at control, lower end control
Break-make between air inlet C processed and gas outlet B；
Tight against valve return spring 45, the plate valve 46 makes exhaust outlet D not made by air pressure inside for the bottom of the valve 44
Used time is in normally off.
The system can be divided into automatic mode and manual mode operation shape by the control of manual mode switch 8, automatic mode switch 9
State.This part logic is same as the prior art, is not described here in detail.Separately below to the operation principle of different operating process of the present invention
It is described in detail：
First, gas replenishment process
As shown in Fig. 2 when atmospheric pressure state self-locking electronic brake system of the present invention releases parking braking, parking braking
Control the first magnetic valve 2 of controller 10 is powered and opens, and the 3rd magnetic valve 5 is powered and closes, now gases at high pressure from air accumulator 1 through the
One magnetic valve 2 enters relay valve control mouth A, first closes exhaust passage, then opens inlet channel, the compressed air in air accumulator 1
Just directly entered in the chamber of relay valve 4 by air inlet C, be filled with brake chamber 7 through gas outlet B.When parking braking air chamber 7 fills
During full gases at high pressure, energy-stored spring is compressed, and parking braking is released therewith, while parking braking controller 10 is by detecting air pressure
The signal of sensor 6, the atmospheric pressure value of monitoring parking braking air chamber 7, when the pressure value of parking braking air chamber 7 reaches its setting upper limit
Afterwards, parking braking controller 10 controls the first magnetic valve 2, the 3rd magnetic valve 5 to power off, and maintains the high pressure in parking braking air chamber 7,
Parking braking releases state and keeps, as shown in Figure 4.
2nd, high pressure auto-lock process
3rd magnetic valve 5 connects the gas outlet B of relay valve 4 with control mouth A, when there is gas leakage in pipe joint etc., by
In relay valve 4 structures shape of itself, B implications pressure is higher than A implication pressures, so B mouthful of gas can be to A mouthfuls of flowing, now servo
Valve 4 is in air-suction state, and gas supplement is carried out to it, keeps parking system to be in high pressure conditions, realizes that high pressure conditions remember work(
Energy.
3rd, deflation course
As shown in figure 3, when atmospheric pressure state self-locking electronic brake system of the present invention applies parking braking, parking braking
Control the second magnetic valve 3 of controller 10 is powered and opens, and the 3rd magnetic valve 5 is powered and closes, and the gas of the control mouth A of relay valve 4 is through the
Two magnetic valves 3 enter air, and inlet channel is closed, and exhaust passage is opened, and the compressed air in brake chamber 7 is through exhaust outlet D
Enter air.When the mesohigh gas of brake chamber 7 is discharged, energy-stored spring resets, and produces parking brake force, reaches parking braking effect
Really, while parking braking controller 10 is by detecting the signal of baroceptor 6, the atmospheric pressure value of monitoring parking braking air chamber 7, when
After the pressure value of parking braking air chamber 7 reaches its preset lower limit, parking braking controller 10 controls the second magnetic valve the 2, the 3rd
Magnetic valve 5 is powered off, and parking braking state keeps, as shown in Figure 4.
4th, low pressure auto-lock process
If gases at high pressure are leaked at the control mouth A of relay valve 4 by the first magnetic valve 2, the gases at high pressure meeting for leaking into
Via the 3rd magnetic valve 5, the gas outlet B of relay valve 4 is flowed into, then entered in air via the exhaust outlet D of relay valve 4, Bu Huiyin
The accumulation of the gases at high pressure that leak into the control mouth A of relay valve 4 is acted, relay valve will not be more opened, thus parking system is in and protects
Card low-pressure state, realizes low pressure auto-lock function.
The present invention realizes system height atmospheric pressure state self-locking, simply and efficiently using relay valve and the combination of magnetic valve
Solve the problems, such as to be brought due to air-pressure type electronic parking system magnetic valve gas leakage, function reliability, response is rapid.
Claims (5)
1. a kind of atmospheric pressure state self-locking electronic brake system, including air accumulator (1), parking braking controller (10), gas
Pressure sensor (6) and parking braking air chamber (7), it is characterised in that：
Also include relay valve (4), the air inlet (C) of the relay valve (4) is connected with air accumulator (1), its gas outlet (B) and parking
Brake chamber (7) is connected, and the input of the baroceptor (6) is serially connected between relay valve (4) and parking braking air chamber (7)
Gas circuit on, its signal output part is connected with parking braking controller (10)；
The first magnetic valve (2) is additionally provided between the control mouth (A) and air accumulator (1) of relay valve (4), in the control of relay valve (4)
The 3rd magnetic valve (5) is additionally provided between donsole (A) and gas outlet (B), also including the second magnetic valve (3), second magnetic valve
(3) input is connected with the control mouth (A) of relay valve (4)；
First magnetic valve (2), the second magnetic valve (3), the 3rd magnetic valve (5) are electrically connected with parking braking controller (10) respectively
Connect.
2. electronic brake system according to claim 1, it is characterised in that：First magnetic valve (2) is two
Two-way normally closed solenoid valve.
3. electronic brake system according to claim 1, it is characterised in that：Second magnetic valve (3) is two
Two-way normally closed solenoid valve.
4. electronic brake system according to claim 1, it is characterised in that：3rd magnetic valve (5) is two
Two-way normally open solenoid valve.
5. electronic brake system according to claim 1, it is characterised in that：The parking braking controller (10) is also
Electrically connected with manual mode switch (8), automatic mode switch (9) and parking indicator lamp (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118935.3A CN106828469A (en) | 2017-03-02 | 2017-03-02 | Atmospheric pressure state self-locking electronic brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118935.3A CN106828469A (en) | 2017-03-02 | 2017-03-02 | Atmospheric pressure state self-locking electronic brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106828469A true CN106828469A (en) | 2017-06-13 |
Family
ID=59137612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710118935.3A Pending CN106828469A (en) | 2017-03-02 | 2017-03-02 | Atmospheric pressure state self-locking electronic brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106828469A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532795A (en) * | 2018-10-15 | 2019-03-29 | 厦门金龙汽车新能源科技有限公司 | Parking braking system, electric vehicle and the control method of electric vehicle |
| CN109552294A (en) * | 2017-09-25 | 2019-04-02 | 郑州宇通客车股份有限公司 | A kind of visitor's auto electronic parking control system and car |
| CN111775935A (en) * | 2020-07-10 | 2020-10-16 | 浙江吉利新能源商用车集团有限公司 | Parking control system and parking control method based on air brake parking system |
| CN114407853A (en) * | 2021-12-28 | 2022-04-29 | 武汉辅安科技有限公司 | Pneumatic electronic parking system |
| CN114771480A (en) * | 2022-04-25 | 2022-07-22 | 一汽解放汽车有限公司 | Braking system and vehicle |
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| WO2009098003A2 (en) * | 2008-02-06 | 2009-08-13 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Parking brake device |
| CN101959727A (en) * | 2008-03-15 | 2011-01-26 | 威伯科有限公司 | Brake system for a vehicle |
| CN105905087A (en) * | 2016-05-03 | 2016-08-31 | 南京理工大学 | Air pressure type electronic parking system with emergency braking function |
| CN106458195A (en) * | 2014-04-09 | 2017-02-22 | 克诺尔商用车制动系统有限公司 | Electro-pneumatic parking brake control device |
| CN206510904U (en) * | 2017-03-02 | 2017-09-22 | 南京理工大学 | Atmospheric pressure state self-locking electronic brake system |
-
2017
- 2017-03-02 CN CN201710118935.3A patent/CN106828469A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009098003A2 (en) * | 2008-02-06 | 2009-08-13 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Parking brake device |
| CN101959727A (en) * | 2008-03-15 | 2011-01-26 | 威伯科有限公司 | Brake system for a vehicle |
| CN106458195A (en) * | 2014-04-09 | 2017-02-22 | 克诺尔商用车制动系统有限公司 | Electro-pneumatic parking brake control device |
| CN105905087A (en) * | 2016-05-03 | 2016-08-31 | 南京理工大学 | Air pressure type electronic parking system with emergency braking function |
| CN206510904U (en) * | 2017-03-02 | 2017-09-22 | 南京理工大学 | Atmospheric pressure state self-locking electronic brake system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552294A (en) * | 2017-09-25 | 2019-04-02 | 郑州宇通客车股份有限公司 | A kind of visitor's auto electronic parking control system and car |
| CN109532795A (en) * | 2018-10-15 | 2019-03-29 | 厦门金龙汽车新能源科技有限公司 | Parking braking system, electric vehicle and the control method of electric vehicle |
| CN109532795B (en) * | 2018-10-15 | 2023-12-26 | 厦门金龙汽车新能源科技有限公司 | Parking brake system of electric vehicle, electric vehicle and control method |
| CN111775935A (en) * | 2020-07-10 | 2020-10-16 | 浙江吉利新能源商用车集团有限公司 | Parking control system and parking control method based on air brake parking system |
| CN111775935B (en) * | 2020-07-10 | 2022-03-01 | 浙江吉利新能源商用车集团有限公司 | Parking control system and parking control method based on air brake parking system |
| CN114407853A (en) * | 2021-12-28 | 2022-04-29 | 武汉辅安科技有限公司 | Pneumatic electronic parking system |
| CN114771480A (en) * | 2022-04-25 | 2022-07-22 | 一汽解放汽车有限公司 | Braking system and vehicle |
| CN114771480B (en) * | 2022-04-25 | 2024-02-23 | 一汽解放汽车有限公司 | Braking system and vehicle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
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| RJ01 | Rejection of invention patent application after publication |