CN207141056U - Air-pressure brake is under-voltage early warning protector - Google Patents
Air-pressure brake is under-voltage early warning protector Download PDFInfo
- Publication number
- CN207141056U CN207141056U CN201720718214.1U CN201720718214U CN207141056U CN 207141056 U CN207141056 U CN 207141056U CN 201720718214 U CN201720718214 U CN 201720718214U CN 207141056 U CN207141056 U CN 207141056U
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- China
- Prior art keywords
- relay
- control circuit
- air
- baroceptor
- fuel oil
- 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.)
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a kind of under-voltage early warning protector of air-pressure brake, is engaged with dual circuit Pneumatic braking system, starting system and the fuel oil supply system of automobile, and the device includes single-chip microcomputer（8）, baroceptor（5）, siren（7）, relay（21、12）And control circuit（16、20）；The baroceptor（5）It is installed in the air accumulator of dual circuit Pneumatic braking system（14、17）The port of export；The control circuit includes connecting the control circuit of starting system and the control circuit of fuel oil supply system respectively, and the relay is normally-closed contact relay, and is installed in starting system control circuit and fuel oil supply system control circuit；The baroceptor, relay, siren with respectively with monolithic mechatronics；The single-chip microcomputer controls siren alarm starting and/or relay to disconnect according to the pressure signal that baroceptor gathers compared with the pressure signal set, and according to comparative result.
Description
Technical field
The automaton in terms of a kind of automotive safety is the utility model is related to, it is particularly a kind of under-voltage in air-pressure brake
In the case of early warning protector.
Background technology
Existing Heavy Duty Commercial Car generally uses Pneumatic braking system, such as the system of dual circuit air-pressure brake, such as the institute of accompanying drawing 1
Show.This dual circuit Pneumatic braking system can provide braking when wherein a set of pipeline fails for some reason by another circuits.
In accompanying drawing 1, the air after being compressed by air compressor 1 is first stored in wet gas receiver 6, then before air pressure is assigned into two
It is respectively that preceding brake chamber 2 and rear brake chamber 10 provide air pressure in brake air accumulator 14 and rear brake air accumulator 17.If
Wherein a pipeline leaks, and can provide brake force by another pipeline.Trailer braking protection valve pipeline is further provided with, in trailer system
Dynamic pipeline is provided with trailer braking protection valve control valve 9 and trailer separating switch 11, so as to realize duplicate protection.
Obvious defect in the prior art be present this.For example, for the system using dual circuit air-pressure brake
Vehicle, when air compressor can not work, or the failures such as rupture occur for total air accumulator, each pipeline can not be given to provide braking
Power, automobile can lose brake efficiency, will be unable to stop in time.For in addition to front and rear braking dual circuit, being also equipped with trailer system
For the vehicle of dynamic pipeline, there is also it is same the problem of.Because the brake force of trailer braking protection valve pipeline is still provided by air pressure, work as air
Compressor can not work, or during the failure such as total air accumulator generation rupture, can not equally give trailer braking protection valve pipeline to provide brake force, hang
Car can lose brake efficiency, will be unable to stop in time.
The content of the invention
The technical problems to be solved in the utility model is to overcome at least one defect described in above-mentioned prior art, there is provided one
Kind air-pressure brake is under-voltage early warning and protection device, optimize original warning system, in brake fade, realize the guarantor to driver
Shield.
The technical scheme of the utility model air-pressure brake is under-voltage early warning protector is：A kind of under-voltage early warning of air-pressure brake is protected
Protection unit, it is engaged with dual circuit Pneumatic braking system, starting system and the fuel oil supply system of automobile, it is characterised in that：Should
Device includes single-chip microcomputer（8）, baroceptor（5）, siren（7）, relay（21、12）And control circuit（16、20）；It is described
Baroceptor（5）It is installed in the air accumulator of dual circuit Pneumatic braking system（14、17）The port of export；The control circuit includes dividing
Not Lian Jie the control circuit of starting system and the control circuit of fuel oil supply system, the relay is normally-closed contact relay,
And it is installed in starting system control circuit and the control circuit of fuel oil supply system；The baroceptor, relay, alarm
Device with respectively with monolithic mechatronics；The single-chip microcomputer is according to the pressure signal that baroceptor gathers and the pressure signal of setting
It is compared, and controls siren alarm starting and/or relay to disconnect according to comparative result.
The baroceptor is two, is respectively installed in the front brake air accumulator of dual circuit Pneumatic braking system with after
On the pipeline at brake reservoir outlet end.
The relay includes the first relay and the second relay, and the first relay is installed in starting system control circuit
On, the second relay is installed in fuel oil supply system control circuit.
Autotest, and highest air pressure preset value and barometric minimum preset value are provided with the single-chip microcomputer, and is led to
Autotest is crossed to make comparisons to the pressure value that baroceptor gathers with highest air pressure preset value and barometric minimum preset value.
The single-chip microcomputer is powered by single power supply module, and the power supply module is provided with switch.
Work as when any one baroceptor and detect that air pressure signal value is less than highest air pressure preset value, and be higher than minimum gas
When pressing preset value, then siren is powered；When the air pressure signal value that any one baroceptor detects is less than minimum predetermined value
When, the first relay power, the power supply of starter circuit is cut off, and siren is powered；When the gas that two sensors detect
Pressure value quickly significantly declines simultaneously, and is less than barometric minimum preset value, and siren in main circuit is powered, sound the alarm and
Second relay power, normally-closed contact disconnect, and cut off the power supply of oil pump, namely automatically cut off the fuel oil supply system of automobile and rise
The power supply of dynamic system, so that automobile flameout, runs out of steam, slowly parking.
Compared with prior art, the beneficial effects of the utility model are：The utility model is simple in construction, can be according to air pressure
The different failure of brakes, and corresponding hommization processing is carried out, the generation of driver's failure can be reminded in time, and and can is certainly
It is dynamic to carry out different safeguard measures.The device compensate for prior art when all safeguard measures can not work, it is impossible to make automobile
The shortcomings that stopping；The self-protection measure that prevention has road on the automobile start of failure is added again, it is more intelligent.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is described further to the under-voltage early warning protector of the utility model air-pressure brake.
Accompanying drawing 1 is the structural representation of dual circuit Pneumatic braking system in the prior art.
Accompanying drawing 2 is the knot that the under-voltage early warning protector of the utility model air-pressure brake combines with dual circuit Pneumatic braking system
Structure schematic diagram（Solid line represents supply air line in figure, and dotted line represents power circuit）.
1, air compressor in figure；2nd, preceding brake chamber；3rd, control for brake main valve；4th, check valve；5th, baroceptor；6、
Wet gas receiver；7th, siren；8th, single-chip microcomputer；9th, trailer control brake valve；10th, rear brake chamber；11st, trailer separating switch；12、
Second relay；13rd, motor；14th, front brake air accumulator；15th, oil pump；16th, starting system control circuit；17th, rear braking
Device air accumulator；18th, double-pointer barometer；19th, pressure regulator valve；20th, fuel oil supply system control circuit；21st, the first relay.
Embodiment
Illustrate this by taking the existing automobile for carrying dual circuit Pneumatic braking system and trailer braking protection valve pipeline as an example below
The concrete structure of utility model.As shown in Figure 2, the top half in figure is dual circuit Pneumatic braking system of the prior art
And trailer braking protection valve pipeline, the latter half are the under-voltage early warning protector of the utility model air-pressure brake.The air-pressure brake is under-voltage
Early warning and protection device are by two baroceptors 5, a siren 7, a single-chip microcomputer 8, the first relay 21, the second relay
Device 12 and starting system control circuit 16, fuel oil supply system control circuit 20, connected and formed by electric wire.One of gas
Pressure sensor 5 is installed on the port of export pipeline of front brake air accumulator 14 of dual circuit Pneumatic braking system, another air pressure transmission
Sensor 5 is installed on the pipeline of the port of export of rear brake air accumulator 17 of dual circuit Pneumatic braking system.First relay 21 fills
It is located in starting system control circuit 16, to control the work of motor 13, the second relay 12 is installed in fuel oil supply system
In control circuit 20, with the work of control oil pump 15.
Wherein single-chip microcomputer 8 is powered by special single-chip microcomputer power supply module, and the voltage of single-chip microcomputer power supply module is direct current 5V.It is single
The circuit board of piece machine 8 is fixedly mounted in car body, and highest air pressure preset value and barometric minimum preset value are preset with single-chip microcomputer 8.After
Electrical equipment 21,12 is normally-closed contact relay, when the actuating of relay, automatically cuts off starting system control circuit 16 and fuel oil supplies
Control circuit 20 to system.The power supply module of single-chip microcomputer 8 is with switch, when the switch is opened, the automatic inspection of early warning protector
Ranging sequence has been at starting state, and baroceptor 5 to the gas pressure of reservoir outlet detect in real time and believe this
Number it is input in single-chip microcomputer 8, single-chip microcomputer 8 is by the signal received and the highest air pressure preset value and barometric minimum preset value of setting
Make comparisons.
When the air pressure signal value that one of sensor 5 detects is less than highest air pressure preset value, and it is higher than barometric minimum
During preset value, and atmospheric pressure value stabilization fluctuates, and now siren 7 sends alarm, reminds driver's air-pressure brake air pressure deficiency；When it
In the atmospheric pressure value that detects of a sensor 5 when being less than barometric minimum preset value, the first relay 21 switch K1 is powered, normally closed to touch
Point disconnects, and cuts off the power supply of vehicle starting system, makes the automobile stopped not starting, and avoids that traffic accident occurs, concurrently
Go out emergency alarm, remind driver's Pneumatic braking system failure to be present.
Barometric minimum is dropped to when the atmospheric pressure value that two baroceptors 5 detect while significantly in a short time to preset
Value is following, and atmospheric pressure value is basicly stable constant, and siren 7 is powered sends alarm immediately, for the automobile travelled, has lost
Brake efficiency is removed, now the second relay 12 switch K2 is powered, and normally-closed contact disconnects, and automatically cuts off the power supply of oil pump, cut-out combustion
Oil supply, so that automobile flameout, runs out of steam, slowly parking.
The utility model is simple in construction, can be according to the different failure of Pneumatic braking system, and carries out corresponding hommization
Processing, can remind the generation of driver's failure in time, and can carries out different safeguard measures automatically.The device compensate for existing
Technology is when all safeguard measures can not work, it is impossible to the shortcomings that making automobile stop, adding the automobile that prevention has failure again
The self-protection measure on road, more intelligent in starting.
Claims (3)
1. a kind of under-voltage early warning protector of air-pressure brake, dual circuit Pneumatic braking system, starting system and fuel oil with automobile
Feed system is engaged, it is characterised in that：The device includes single-chip microcomputer（8）, baroceptor（5）, siren（7）, relay
（21、12）And control circuit（16、20）；The baroceptor（5）It is installed in the air accumulator of dual circuit Pneumatic braking system
（14、17）The port of export；The control circuit includes control circuit and the control of fuel oil supply system for connecting starting system respectively
Circuit, the relay are normally-closed contact relay, and are installed in starting system control circuit and fuel oil supply system control electricity
Lu Shang；The baroceptor, relay, siren with respectively with monolithic mechatronics；The single-chip microcomputer is according to air pressure sensing
Device collection pressure signal with setting pressure signal compared with, and according to comparative result control siren alarm start with/
Or relay disconnects.
2. the under-voltage early warning protector of air-pressure brake according to claim 1, it is characterised in that：The baroceptor is
Two, it is respectively installed in the front brake air accumulator of dual circuit Pneumatic braking system and the pipeline at rear brake reservoir outlet end
On.
3. the under-voltage early warning protector of air-pressure brake according to claim 1, it is characterised in that：The relay includes the
One relay and the second relay, the first relay are installed in starting system control circuit, and the second relay is installed in fuel oil
In feed system control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720718214.1U CN207141056U (en) | 2017-06-20 | 2017-06-20 | Air-pressure brake is under-voltage early warning protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720718214.1U CN207141056U (en) | 2017-06-20 | 2017-06-20 | Air-pressure brake is under-voltage early warning protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207141056U true CN207141056U (en) | 2018-03-27 |
Family
ID=61671399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720718214.1U Expired - Fee Related CN207141056U (en) | 2017-06-20 | 2017-06-20 | Air-pressure brake is under-voltage early warning protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207141056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595701A (en) * | 2019-09-16 | 2019-12-20 | 东风商用车有限公司 | Air tightness detection system and method for automobile air brake system |
-
2017
- 2017-06-20 CN CN201720718214.1U patent/CN207141056U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595701A (en) * | 2019-09-16 | 2019-12-20 | 东风商用车有限公司 | Air tightness detection system and method for automobile air brake system |
| CN110595701B (en) * | 2019-09-16 | 2021-03-30 | 东风商用车有限公司 | Air tightness detection system and method for automobile air brake system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20210620 |