CN106274873A - Automobile brake vacuum pump control circuit - Google Patents
Automobile brake vacuum pump control circuit Download PDFInfo
- Publication number
- CN106274873A CN106274873A CN201510297817.4A CN201510297817A CN106274873A CN 106274873 A CN106274873 A CN 106274873A CN 201510297817 A CN201510297817 A CN 201510297817A CN 106274873 A CN106274873 A CN 106274873A
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- Prior art keywords
- terminals
- vacuum
- vacuum pump
- normally opened
- connect
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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
- B60T13/74—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
- B60T13/745—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 acting on a hydraulic system, e.g. a master cylinder
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The present invention is a kind of automobile brake vacuum pump control circuit that can be applicable on vacuum automobile assisted hydraulic brake system, this circuit is when engine stop operates, absolute pressure by air inlet pressure sensor detection vacuum tank, and in time control vacuum pump work, to ensure there is enough vacuum servo usefulness when braking, this circuit also can force vacuum pump work when braking, to ensure that vacuum booster can obtain closer to preferable vacuum servo usefulness when braking, so that vacuum automobile assisted hydraulic brake system can be applicable to employ on the automobile without idling running control system or hybrid vehicle or dual-mode power automobile.
Description
One. art
The present invention relates to a kind of automobile brake vacuum pump that can be applicable on vacuum automobile assisted hydraulic brake system
Control circuit
Two. background technology
At present, known traditional vacuum assisted hydraulic brake system has the advantage of low cost, system stability,
But there is also defect, such as: 1. cannot persistently provide vacuum servo usefulness after engine stop operates；2. sending out
When motivation is in fast-idle speed, throttle opening is big compared with aperture during idling, causes the exhausted of engine suction manifold
To pressure higher compared with during idling time, carrying out the vacuum-assisted usefulness of offer during continuous braking in this case has
Declined；3. the most improper use often shut down at electromotor of traditional vacuum assisted hydraulic brake system
Without applying on the automobile of idling running control system, the most improper mixing often shut down at electromotor
Apply on power vehicle and dual-mode power automobile
Three. summary of the invention
Employing without idling running control system to make traditional vacuum assisted hydraulic brake system to apply
On automobile or hybrid vehicle or dual-mode power automobile, the present invention provide a kind of automobile brake vacuum pump to control
Circuit, this circuit can make when electromotor is inoperative vacuum pump work, carry to vacuum assisted hydraulic brake system
For enough vacuum servo usefulness, thus when electromotor is inoperative, automobile also has normal braking ability.
The technical solution adopted for the present invention to solve the technical problems is:
After automobile ignition switch connects IG circuit, use the air inlet pressure sensor detection braking of Universal automobile
Absolute pressure in vacuum boost system, is controlled the work of vacuum pump, makes braking true by vacuum conditions circuit
Within the scope of absolute pressure in do-nothing system is maintained at the absolute pressure of setting；Use simultaneously and force vacuum pump work
Make circuit, make vacuum pump work under on-position, to promote vacuum servo usefulness further.
It is an advantage of the invention that and make to be in without the automobile worked under idling thermoacoustic prime engine state at engine stop
During operation, its hydraulic vacuum energy assisted braking system remains in that effective vacuum servo usefulness；Make hybrid power
Automobile, dual-mode power automobile, pure electric automobile all can apply the hydraulic vacuum with low cost, system stability
Energy assisted braking system, the present invention can make vacuum pump work when automobile brake, it is ensured that under various driving states all
Have closer to preferable vacuum servo usefulness.
Four. accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of automobile brake vacuum pump control circuit.
In figure: 1. vacuum booster, 2. vacuum tank, 3. the first Zener diode, 4. the second Zener diode,
5. the first check valve, 6. the first resistance, 7. the second amplifying circuit, 8. pipe joint, 9. air inlet pressure sensor,
10. the second resistance, 11. first amplifying circuits, 12. second check valves, 13. first normally opened relays, 14.
Electric vacuum pump, 15. engine oil pressure pickups, 16. vacuum pressure alarm lamps, 17. vacuum pump electromotion pilot lamps, 18.
Second normally opened relay, 19. braking light switch, 20. ignition switches, 21. force vacuum pump operating circuit, 22. vacuum to be adjusted
Economize on electricity road, 23. Brake lamps.
Five. detailed description of the invention
In FIG, the 5V power supply of the a-power supply input connection ECU of air inlet pressure sensor (9) is defeated
Go out end, the C bonding end bonding of air inlet pressure sensor (9)；The negative pole of the first Zener diode (3) with
The B terminals of air inlet pressure sensor connect, the positive pole of the first Zener diode (3) and the first resistance (6)
One end connect, the other end of the first resistance (6) connects the signal input part E of the first amplifying circuit (11)
Terminals, the power input G terminals of the first amplifying circuit (11) connect the IG of ignition switch (20) and connect
Line end, the power output end H terminals of the first amplifying circuit (11) connect the first normally opened relay (13) line
The I terminals of circle, the Q terminals of the first normally opened relay (13) coil connect engine oil pressure pickup and connect
Line end, engine oil pressure pickup housing bonding, the first normally opened relay (13) contact N terminals connect electricity
Source positive pole, the power supply that the first normally opened relay (13) contact M terminals connect electric vacuum pump (14) is defeated
Enter to hold O terminals, the housing bonding of electric vacuum pump (14)；The negative pole of the second Zener diode (4) with
The B terminals of air inlet pressure sensor connect, and the positive pole of the second Zener diode (4) connects the second resistance (10)
One end, the other end of the second resistance (10) connects the signal input part F terminals of the second amplifying circuit (7),
The power input I terminals of the second amplifying circuit (7) connect the IG terminals of ignition switch (20),
The power output end J terminals of the second amplifying circuit (7) connect one end of vacuum pressure alarm lamp (16),
The other end bonding of vacuum pressure alarm lamp (16)；Force the power supply input of vacuum pump operating circuit (21)
End Y terminals connect the IG terminals of ignition switch (20), and one end of braking light switch (19) connects Y
Terminals, the other end of braking light switch (19) connects one end of the second normally opened relay (18) coil,
The other end of the second normally opened relay (18) coil connects bonding after Z terminals, the second normally opened relay (18)
The X terminals of contact connect positive source, and the S terminals of the second normally opened relay (18) contact connect true
The power input O terminals of empty pump (14): the power input P of vacuum pump electromotion pilot lamp (17)
Terminals are connected with the power input O terminals of electric vacuum pump (14), vacuum pump electromotion pilot lamp (17)
Current output terminal bonding.
Automotive ignition open (20) switch on power with IG terminals after, the work of automobile brake vacuum pump control circuit
Make principle as follows:
1. the operation principle of air inlet pressure sensor (9) is, the absolute pressure change in detection vacuum tank (2),
Again from the change of perceptron internal resistance, being converted into voltage signal output, vacuum tank (2) interior absolute pressure is more
Little, output signal voltage is the lowest.Absolute pressure in vacuum tank (2) is the biggest, and output signal voltage is also got over
High.
2. when engine stop operates, the A terminals energising of air inlet pressure sensor (9), and detect true
Absolute pressure in slack tank (2), when the absolute pressure in vacuum tank (2) is higher than the first setting value, enters
The output voltage of the B terminals of atmospheric pressure sensor (9) is high enough to back through the first Zener diode (3)
And first resistance (6) trigger the first amplifying circuit (11) by the first amplifying circuit (11) E terminals
G terminals and H terminals turn on, make the G terminals of electric current warp from the output of IG terminals, first
Amplifying circuit (11), H terminals, L terminals, the first normally opened relay coil (13) coil, Q connect
Line end, again through engine oil pressure pickup (15) bonding；First normally opened relay coil (13) coil electricity
Rear generation magnetic attraction make normally opened contact Guan Bi conducting, positive source output electric current by N terminals, contact,
M terminals, O terminals enter electric vacuum pump (14), through the housing bonding of electric vacuum pump (14),
Make electric vacuum pump (14) energising operating, by the second check valve (12), the air in vacuum tank (2) is taken out
Go out, make vacuum booster (1) that enough vacuum servo usefulness can be obtained at any time when braking, the most electronic very
Empty pump electromotion pilot lamp (17) is also energized and lights.When the absolute pressure in vacuum tank (2) is less than the first setting
After value, the output voltage of air inlet pressure sensor (9) B terminals as little as can not be back through the first voltage stabilizing two
Pole pipe (3), makes the circuit between G terminals and the H terminals of the first amplifying circuit (11) be in cut-off
State, makes normally opened relay (13) coil blackout then, and normally opened contact disconnects, electric vacuum pump (14)
Power-off shuts down, and the evacuation action of vacuum tank (2) is also stopped by electric vacuum pump (14).
3., when engine stop operates, air inlet pressure sensor (9) A terminals are energized, and detect vacuum
Absolute pressure in tank (2), when the absolute pressure in vacuum tank (2) is greatly higher than the second setting value (the
The absolute pressure of two setting values is higher than the absolute pressure of the first setting value), air inlet pressure sensor (9) B connects
The output voltage of line end is high enough to back through the second Zener diode (4) and the second resistance (10) and leads to
Cross the second amplifying circuit (7) F terminals to trigger the I terminals of the second amplifying circuit (7) and lead with J terminals
Logical, make from the electric current of IG output through I terminals, the second amplifying circuit (7), J terminals, entrance vacuum
Pressure alarm lamp (16) bonding afterwards, now vacuum pressure alarm lamp bright (16) rises, and warning driver is now
Vacuum servo usefulness needed for braking is not enough.
The most when the engine runs, inlet manifold by being connected the first check valve (5) with pipe joint (8),
Being extracted out by air in vacuum tank (2), engine oil pressure pickup (15) internal switch now is in disconnection shape
State, the bonding circuit of the first normally opened relay (13) coil is interrupted, and breaks in the contact of the first normally opened relay
Opening, thus disconnect the power circuit of electric vacuum pump (14), electric vacuum pump (14) shuts down.
The most when braking, braking light switch (19) Guan Bi conducting, true through forcing from the electric current of IG terminals output
The Y terminals of empty pump work circuit (21), braking light switch (19), the second normally opened relay (18)
Coil, the Z terminals bonding of pressure vacuum pump operating circuit (21), the second normally opened relay (18)
Coil electricity produce magnetic attraction makes normally opened contact Guan Bi conducting, positive source output electric current by X terminals,
The contact of the second normally opened relay (18), S terminals, O terminals enter electric vacuum pump (14), warp
Electric vacuum pump (14) housing bonding, makes electric vacuum pump (14) energising operating, by the second check valve (12)
Being extracted out by air in vacuum tank (2), electric current is led to by S terminals, P terminals entrance vacuum pump simultaneously
Electricity display lamp (17) bonding afterwards, makes vacuum pump electromotion pilot lamp (17) light, and electric current is by braking simultaneously
Lamp switch (19) is bonding after Brake lamp (23), makes Brake lamp (23) light.
Claims (2)
- null1. the automobile brake vacuum pump control circuit in good time worked by control vacuum pump，It is by air inlet pressure sensor、First Zener diode、First resistance、First amplifying circuit、First normally opened relay、The vacuum conditions circuit of engine oil pressure pickup composition，And by the second normally opened relay、The pressure vacuum pump operating circuit of braking light switch composition，Also have by the second Zener diode、Second resistance、Second amplifying circuit、The vacuum warning circuit of vacuum pressure alarm lamp composition is constituted，It is characterized in that: vacuum conditions circuit constitutes the 5V voltage output end being to be connected ECU by the A terminals of air inlet pressure sensor，The C terminals bonding of air inlet pressure sensor，The B terminals of air inlet pressure sensor connect the negative pole of the first Zener diode，The positive pole of the first Zener diode and one end of the first resistance connect，The other end of the first resistance connects the signal input part E terminals of the first amplifying circuit，The power input G terminals of the first amplifying circuit connect the IG terminals of ignition switch，The power output end H terminals of the first amplifying circuit connect the I terminals of the first normally opened relay coil，The Q terminals of the first normally opened relay coil connect engine oil pressure pickup terminals，Engine oil pressure pickup housing bonding，First normally opened relay contact N terminals connect positive source，First normally opened relay contact M terminals connect the power input O terminals of electric vacuum pump，Motorized vacuum pump case bonding；Vacuum pump operating circuit is forced to constitute the IG terminals being to be connected ignition switch by power input Y terminals, one end of braking light switch connects Y terminals, one end of braking light switch connects one end of the second normally opened relay coil, the other end of the second normally opened relay coil connects bonding after Z terminals, the X terminals of the second normally opened relay contact connect positive source, and the S terminals of the second normally opened relay contact connect the power input O terminals of electric vacuum pump.
- Vacuum warning circuit the most according to claim 1, it is characterized in that: the negative pole of the second Zener diode is connected with the B terminals of air inlet pressure sensor, the positive pole of the second Zener diode connects one end of the second resistance, the other end of the second resistance connects the signal input part F terminals of the second amplifying circuit, the power input I terminals of the second amplifying circuit connect the IG terminals of ignition switch, the power output end J terminals of the second amplifying circuit connect one end of vacuum pressure alarm lamp, the other end bonding of vacuum pressure alarm lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510297817.4A CN106274873B (en) | 2015-06-01 | 2015-06-01 | Automobile brake vacuum pump control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510297817.4A CN106274873B (en) | 2015-06-01 | 2015-06-01 | Automobile brake vacuum pump control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106274873A true CN106274873A (en) | 2017-01-04 |
| CN106274873B CN106274873B (en) | 2018-10-26 |
Family
ID=57656039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510297817.4A Expired - Fee Related CN106274873B (en) | 2015-06-01 | 2015-06-01 | Automobile brake vacuum pump control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106274873B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2760221A1 (en) * | 1997-03-03 | 1998-09-04 | Honda Motor Co Ltd | Control system for motorcycle hydraulic braking system |
| KR20100094146A (en) * | 2009-02-18 | 2010-08-26 | 주식회사 만도 | Hybrid brake system |
| KR20100128850A (en) * | 2009-05-29 | 2010-12-08 | 주식회사 만도 | Electronic control brake system for a vehicle and control method the same |
| DE102012200423A1 (en) * | 2011-05-11 | 2012-11-15 | Continental Automotive Gmbh | Control module for an electric vacuum pump |
| CN102806900A (en) * | 2012-08-16 | 2012-12-05 | 安徽江淮汽车股份有限公司 | Vacuum assist brake controller for electric automobile |
| RU2531652C2 (en) * | 2009-02-11 | 2014-10-27 | Роберт Бош Гмбх | Control over operation of automotive fluid-driven brake system with braking system |
| CN104295382A (en) * | 2013-07-19 | 2015-01-21 | 贾振雷 | No-idling control system for vehicle |
| CN104635690A (en) * | 2014-12-30 | 2015-05-20 | 北京新能源汽车股份有限公司 | Vehicle control unit of pure electric vehicle integrating gateway function |
-
2015
- 2015-06-01 CN CN201510297817.4A patent/CN106274873B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2760221A1 (en) * | 1997-03-03 | 1998-09-04 | Honda Motor Co Ltd | Control system for motorcycle hydraulic braking system |
| RU2531652C2 (en) * | 2009-02-11 | 2014-10-27 | Роберт Бош Гмбх | Control over operation of automotive fluid-driven brake system with braking system |
| KR20100094146A (en) * | 2009-02-18 | 2010-08-26 | 주식회사 만도 | Hybrid brake system |
| KR20100128850A (en) * | 2009-05-29 | 2010-12-08 | 주식회사 만도 | Electronic control brake system for a vehicle and control method the same |
| DE102012200423A1 (en) * | 2011-05-11 | 2012-11-15 | Continental Automotive Gmbh | Control module for an electric vacuum pump |
| CN102806900A (en) * | 2012-08-16 | 2012-12-05 | 安徽江淮汽车股份有限公司 | Vacuum assist brake controller for electric automobile |
| CN104295382A (en) * | 2013-07-19 | 2015-01-21 | 贾振雷 | No-idling control system for vehicle |
| CN104635690A (en) * | 2014-12-30 | 2015-05-20 | 北京新能源汽车股份有限公司 | Vehicle control unit of pure electric vehicle integrating gateway function |
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| Publication number | Publication date |
|---|---|
| CN106274873B (en) | 2018-10-26 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 Termination date: 20190601 |
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| CF01 | Termination of patent right due to non-payment of annual fee |