CN106427976B - A kind of brake pressure compensation control system and method - Google Patents
A kind of brake pressure compensation control system and method Download PDFInfo
- Publication number
- CN106427976B CN106427976B CN201611182213.6A CN201611182213A CN106427976B CN 106427976 B CN106427976 B CN 106427976B CN 201611182213 A CN201611182213 A CN 201611182213A CN 106427976 B CN106427976 B CN 106427976B
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- pressure
- gas receiver
- brake
- solenoid valve
- parking
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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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
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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 relates to a kind of brake pressure compensation control system and method, which includes: air compressor machine, parking gas receiver, driving gas receiver, pressure regulating controller and the first pressure sensor being electrically connected respectively with the pressure regulating controller, second pressure sensor, the first solenoid valve, second solenoid valve, ignition lock；When electrically connecting for ON grades of ignition lock, the pressure regulating controller detects the pressure of the parking gas receiver and the driving gas receiver, and when detecting the pressure of the driving gas receiver less than the first setting value, closes first solenoid valve；The pressure of the driving gas receiver is being detected less than the second setting value and the pressure of the parking gas receiver is greater than second setting value and when second setting value is less than first setting value, the second solenoid valve is opened, so that the parking gas receiver is that the driving gas receiver supplements pressure.Through the invention, the safety of vehicle braking is improved.
Description
Technical field
The present invention relates to vehicle brake technology fields, and in particular to a kind of brake pressure compensation control system and method.
Background technique
Automobile carries out brake deceleration to vehicle using braking system, as shown in Figure 1, when vehicle parking gas receiver and driving store up
Inflator keeps certain pressure, just can guarantee the normal work of parking brake actuator Yu service brake executing agency.If
There is the case where brake pressure is insufficient or brake pressure is revealed, vehicle will appear that braking response is slow, and brake efficiency declines even
The dangerous situation of brake fade causes very big influence to traffic safety.
As shown in Figure 1, the gas of vehicle parking gas receiver and driving gas receiver comes from air compressor machine, valve is protected by double loop
F ', which inflate between parking gas receiver and driving gas receiver, to be switched, and air compressor machine pressure stops inflation after reaching 0.9MPa；Work as vehicle
When carrying out service brake, driving gas storage cylinder pressure is gradually reduced with stepping on number under brake pedal, is led in the prior art
The pressure of driving gas receiver or parking gas receiver is judged using baroceptor and is shown in instrument.
But the prior art has the disadvantages that
1) air compressor machine at work, while to parking gas receiver and driving gas receiver inflation, in continuous braking and not
Under same working environment, for example the continuous braking in descending or ice and snow road, the supply of air compressor machine do not catch up with driving gas receiver
Consumption, it is possible that service brake gas receiver air pressure is insufficient, brake efficiency decline.
2) vehicle only judges braking system atmospheric pressure state by test gas receiver air pressure, and there are certain lag.Such as
Leakage will make gas receiver that can not inflate simultaneously gas leakage at air compressor machine output pipe, when gas receiver air pressure is leaked in a certain range
Braking can just fail；For another example the leakage of brake chamber partial gas pressure will will cause braking and fail immediately, and air compressor machine continues to fill at this time
Gas, driving gas receiver pressure decline is slower, but at this time without braking effect, to influence traffic safety.
Summary of the invention
The present invention provides a kind of brake pressure compensation control system and methods, to improve the safety of vehicle braking.
To achieve the goals above, the present invention provides the following technical scheme that
A kind of brake pressure compensation control system, comprising: air compressor machine and pass through air circuit connection with the air compressor machine respectively
Parking gas receiver, driving gas receiver；Further include: pressure regulating controller and respectively with pressure regulating controller electricity
First pressure sensor, second pressure sensor, the first solenoid valve, the second solenoid valve, ignition lock of connection；The first pressure
Sensor is mounted on the parking gas receiver, for acquiring the pressure of the parking gas receiver；The second pressure sensor
It is mounted on the driving gas receiver, for acquiring the pressure of the driving gas receiver；First solenoid valve is mounted on described
In gas circuit between air compressor machine and the parking gas receiver, the second solenoid valve is mounted on the parking gas receiver and the row
In gas circuit between vehicle gas receiver；When electrically connecting for ON grades of ignition lock, the pressure regulating controller detects the parking gas storage
The pressure of cylinder and the driving gas receiver, and when detecting the pressure of the driving gas receiver less than the first setting value, it closes
Close first solenoid valve；Detecting the pressure of the driving gas receiver less than the second setting value and the parking gas receiver
Pressure when being greater than second setting value and second setting value and being less than first setting value, open second electromagnetism
Valve, so that the parking gas receiver is that the driving gas receiver supplements pressure.
Preferably, the system also includes:
The alarm device being electrically connected with the pressure regulating controller；
The pressure regulating controller controls institute when detecting the pressure of the driving gas receiver less than the second setting value
State alarm device alarm.
Preferably, the system also includes:
Third pressure sensor, the third solenoid valve being electrically connected respectively with the pressure regulating controller；The third pressure
Force snesor is mounted in the air compressor machine output gas circuit, and the third solenoid valve is mounted on the air compressor machine and the driving is stored up
In the gas circuit of inflator；
The pressure regulating controller is declining in the pressure for detecting the third pressure sensor and when unit
When interior pressure fall is greater than setting range value, first solenoid valve and the third solenoid valve are closed, and control institute
State alarm device alarm.
Preferably, the system also includes:
The first indicator light being electrically connected with the pressure regulating controller；
The pressure regulating controller is declining in the pressure for detecting the third pressure sensor and when unit
When interior pressure fall is greater than setting range value, the first indicator light flashing is controlled.
Preferably, the system also includes:
The 4th pressure sensor that is electrically connected respectively with the pressure regulating controller, brake pedal position sensor,
Two indicator lights；The brake pedal position sensor is for acquiring vehicle brake pedal position；The 4th pressure sensor peace
Mounted in brake chamber, the brake chamber and the driving gas receiver pass through air circuit connection；
The pressure regulating controller is detecting the signal of the brake pedal position sensor and the 4th pressure biography
When the pressure of sensor is less than brake pressure limit value, controls second indicator light and flash and control the alarm device alarm, to mention
Show that driving gas receiver is faulty to the gas circuit between brake chamber.
A kind of brake pressure compensating control method, which comprises
When electrically connecting for ON grades of ignition lock, by the first pressure sensor that is mounted on parking gas receiver obtain described in stay
The pressure of vehicle gas receiver obtains the pressure of the driving gas receiver by the second pressure sensor being mounted on driving gas receiver
Power；
If the pressure of the driving gas receiver is less than the first setting value, closing is mounted on air compressor machine and the parking is stored up
The first solenoid valve between inflator in gas circuit；
If the pressure of the driving gas receiver is less than the second setting value and the pressure of the parking gas receiver is greater than institute
The second setting value is stated, second setting value is less than first setting value, then opens and be mounted on the driving gas receiver and institute
The second solenoid valve between parking gas receiver in gas circuit is stated, so that the parking gas receiver is driving gas receiver supplement pressure
Power.
Preferably, the method also includes:
When the pressure of the driving gas receiver is less than the second setting value, control alarm device alarm.
Preferably, the method also includes:
Detect the pressure for the third pressure sensor being mounted in air compressor machine output gas circuit declining and
When pressure fall is greater than setting range value in unit time, closes first solenoid valve and be mounted on the air compressor machine
With third solenoid valve in the driving gas receiver gas circuit, and alarm device alarm is controlled.
Preferably, the method also includes:
Declining in the pressure of the third pressure sensor and pressure fall is greater than setting in the unit time
When range value, control the first indicator light flashing.
Preferably, the method also includes:
In the signal for detecting brake pedal position sensor and the 4th pressure sensor pressure for being mounted on brake chamber
When power is less than brake pressure limit value, the second indicator light of control flashes and controls the alarm device alarm, to prompt driving gas receiver
Faulty to the gas circuit between brake chamber, the brake pedal position sensor is for acquiring vehicle brake pedal position.
The beneficial effects of the present invention are:
Brake pressure compensation control system provided in an embodiment of the present invention and method, pressure regulating controller are detecting a little
When ON grades of fire lock electrically connects, the pressure of parking gas receiver is detected by first pressure sensor, is examined by second pressure sensor
Survey the pressure of driving gas receiver；And when detecting the pressure of the driving gas receiver less than the first setting value, close installation
The first solenoid valve between air compressor machine and the parking gas receiver in gas circuit, so that air compressor machine be allow to be individually for the driving
Gas receiver inflation；Detecting the pressure of the driving gas receiver less than the second setting value and the pressure of the parking gas receiver
Greater than second setting value and when second setting value is less than first setting value, opening is mounted on the driving gas storage
Second solenoid valve between cylinder and the parking gas receiver in gas circuit, so that the parking gas receiver is driving gas receiver benefit
Pressurising power.Through the invention, the safety of vehicle braking is improved.
Detailed description of the invention
Fig. 1 is brake system of car structural schematic diagram in the prior art.
Fig. 2 is a kind of structural schematic diagram of brake pressure compensation control system of the embodiment of the present invention.
Fig. 3 is another structural schematic diagram of brake pressure compensation control system of the embodiment of the present invention.
Numbering in the drawing:
F ', double loop protection valve F1, the first solenoid valve F2, second solenoid valve F3, third solenoid valve Y1, first pressure sensing
Device Y2, second pressure sensor Y3, third pressure sensor Y4, the 4th pressure sensor J1, the first relay J2, the second relay
Device J3, third relay K1, ignition lock ON gear switch B+, vehicle power supply Z, brake pedal position sensor L1, the first indicator light
L2, the second indicator light L3, alarm device
Specific embodiment
In order to enable those skilled in the art to be further understood that feature and technology contents of the invention, with reference to the accompanying drawing
It elaborates with embodiment to the embodiment of the present invention.
If Fig. 2 is a kind of structural schematic diagram of brake pressure compensation control system of the embodiment of the present invention, which includes: sky
Press and respectively the parking gas receiver with the air compressor machine by air circuit connection, driving gas receiver；Further include: pressure is adjusted
Controller and the first pressure sensor Y1 being electrically connected respectively with the pressure regulating controller, second pressure sensor Y2,
First solenoid valve F1, second solenoid valve F2, ignition lock；The first pressure sensor Y1 is mounted on the parking gas receiver,
For acquiring the pressure of the parking gas receiver；The second pressure sensor Y2 is mounted on the driving gas receiver, is used for
Acquire the pressure of the driving gas receiver；The first solenoid valve F1 is mounted between the air compressor machine and the parking gas receiver
Gas circuit on, the second solenoid valve F2 be mounted on the parking gas receiver and it is described driving gas receiver between gas circuit on；When
ON grades of ignition lock when electrically connecting, the pressure regulating controller detects the pressure of the parking gas receiver and the driving gas receiver
Power, and when detecting the pressure of the driving gas receiver less than the first setting value, close first solenoid valve；It is detecting
To the driving gas receiver pressure is less than the second setting value and the pressure of the parking gas receiver is greater than second setting
Value and second setting value be less than first setting value when, the second solenoid valve is opened, so that the parking gas receiver
Pressure is supplemented for the driving gas receiver.
It should be noted that the first setting value is determined by calibration from the second setting value by different motor vehicle braking systems,
For example, the first setting value is 0.6MPa, the second setting value is 0.58MPa.
Specifically, as shown in Fig. 2, vehicle power supply B+ does not pass through ON grades of ignition lock when ignition lock ON gear switch K1 is opened
Switch K1 cut-in pressure adjusting controller illustrates ON grades of ignition lock electric access failures；When ignition lock ON gear switch K1 closure, vehicle
Power supply B+ illustrates that ON grades of electricity of ignition lock have been turned on by ignition lock ON gear switch K1 cut-in pressure adjusting controller.
It should be noted that in the embodiment of the present invention, when electrically connecting for ON grades of ignition lock, if pressure regulating controller is examined
The pressure of driving gas receiver is measured greater than after the first setting value, the pressure regulating controller disconnects the second solenoid valve, i.e.,
The gas circuit that parking gas receiver is disconnected between gas receiver of driving a vehicle, and opens first solenoid valve, with connect air compressor machine with it is described
Gas circuit between parking gas receiver.
Brake pressure compensation control system provided in an embodiment of the present invention, when electrically connecting for ON grades of ignition lock, if driving
The pressure of gas receiver drops to the first setting value, and air compressor machine is made to be individually for driving gas receiver inflation；If the pressure for gas receiver of driving a vehicle
Power drops to the second setting value, is that driving gas receiver supplements pressure by parking gas receiver, ensure that the normal of driving gas receiver
Operating pressure, to ensure that the safety of vehicle braking.
It further, can also include: to be adjusted with the pressure as shown in figure 3, in another embodiment of present system
The alarm device L3 of controller electrical connection；The pressure regulating controller is detecting the pressure of the driving gas receiver less than second
When setting value, the alarm device L3 alarm is controlled.Specifically, alarm device L3 can be buzzer, pressure regulating controller detection
To driving gas receiver pressure less than the second setting value, then control buzzer yowl and need to stop to remind driver pressure insufficient
Vehicle is inflated.
In the embodiment of the present invention, once pressure regulating controller detects the pressure of driving gas receiver less than the second setting
Value illustrates that revealing occurs in the gas of driving gas receiver or driver's continuous use point brake is excessive, and needing driver to stop is row
Vehicle gas receiver and the inflation of parking gas receiver, to ensure the safety of vehicle braking.
In order to guarantee the safety of air compressor machine output gas circuit, as shown in figure 3, in another embodiment of present system,
It can also include: the third pressure sensor Y3 being electrically connected respectively with the pressure regulating controller, third solenoid valve F3；It is described
Third pressure sensor Y3 is mounted in air compressor machine output gas circuit, the third solenoid valve F3 be mounted on the air compressor machine with
In the gas circuit of the driving gas receiver；The pressure regulating controller is detecting the pressure of the third pressure sensor Y3 just
In decline and when pressure fall is greater than setting range value in the unit time, the first solenoid valve F1 and described the are closed
Three solenoid valve F3, and control the alarm device L3 alarm.
It should be noted that setting range value is determined by calibration according to different motor vehicle braking systems, such as setting width
Angle value is 0.21MPa.Further, it should be noted that setting range value can there are two, such as setting range value include first
Range value and the second range value；It is related whether the selection of the first range value and the second range value is operated with vehicle brake pedal；
When vehicle brake pedal is operated, declined and unit time internal pressure by judging the pressure of third pressure sensor Y3
Power fall is greater than the first range value, then pressure regulating controller closes the first solenoid valve F1 and third solenoid valve F3；
When vehicle brake pedal is not operated, by judging that the pressure of third pressure sensor Y3 declined and in the unit time
Pressure fall is greater than the second range value, then pressure regulating controller closes the first solenoid valve F1 and third solenoid valve
F3.First range value is greater than the second range value, for example, the first range value is 0.2MPa, the second range value is 0.1MPa.
In the embodiment of the present invention, by detecting the situation of change of air compressor machine output pressure, determine that air compressor machine output gas circuit is
No gas leakage, to further ensure the safety of vehicle braking.
It further, can also include: to be adjusted with the pressure as shown in figure 3, in another embodiment of present system
First indicator light L1 of controller electrical connection；The pressure regulating controller is in the pressure for detecting the third pressure sensor Y3
When power is declining and pressure fall is greater than setting range value in the unit time, controls the first indicator light L1 and dodge
It is bright.In the embodiment of the present invention, alarmed by the first indicator light L1 of control flashing and the alarm device L3, for reminding driver
Gas path failure needs parking maintenance immediately before braking.
Further, as shown in figure 3, in another embodiment of present system, can also include: respectively with the pressure
The 4th pressure sensor Y4, the brake pedal position sensor Z, the second indicator light L2 of adjusting controller electrical connection；The braking
Pedal position sensor Z is for acquiring vehicle brake pedal position；The 4th pressure sensor Y4 is mounted on brake chamber, institute
It states brake chamber and the driving gas receiver passes through air circuit connection；The pressure regulating controller is detecting the brake pedal
When the pressure of the signal of position sensor and the 4th pressure sensor is less than brake pressure limit value, second indicator light is controlled
L2 flashes and controls the alarm device L3 alarm, faulty to the gas circuit between brake chamber with prompt driving gas receiver.
It should be noted that the brake pressure limit value is the minimum pressure values for pushing brake chamber, the generally less than value
Braking pressure will be unable to push the distance rod movement in brake chamber afterwards, and the brake pressure limit value is true by braking mechanical part
Fixed, the brake pressure limit value of the braking system of different type vehicle configuration may be different, therefore the brake pressure limit value need to lead to
It crosses calibration to determine, for example, brake pressure limit is 0.35MPa.
In the embodiment of the present invention, pressure and brake pressure that pressure regulating controller passes through current 4th pressure sensor Y4
Limit value compares, and judges whether the pressure of brake chamber can maintain brake chamber to act；If being unable to maintain that brake chamber
Movement, then pressure regulating controller control the second indicator light L2 flashing, while make alarm device L3 alarm, remind driver it is current
Drive a vehicle gas receiver to brake chamber gas circuit it is faulty, need driver to pass through operation parking system, auxiliary using row and rob extension
Any mode or various ways parking in low grade brake, and overhaul.
It should be noted that operation parking system, using arrange it is auxiliary and rob drag-down brake three kinds of modes all use it is time-consuming most
Few, effect is best, plays the role of reducing speed；When three kinds of modes are independent or are used in combination two-by-two, the effect of parking system is operated
Fruit is preferable.
Further, in order to save manufacturing cost, as shown in figure 3, can also be wrapped in another embodiment of present system
It includes: the first relay J1, the second relay J2 and the third relay J3 being electrically connected with the pressure regulating controller；First
Relay J1 coil-end, the second relay J2 coil-end and third relay J3 coil-end adjust with the pressure control respectively
Device electrical connection, the first relay J1 control terminal is connected between vehicle power supply B+ and the first solenoid valve F1, to control the first electromagnetism
Valve F1's is on and off；Second relay J2 control terminal is connected between vehicle power supply B+ and second solenoid valve F2, with control
Second solenoid valve F2's is on and off；Third relay J3 control terminal be connected to vehicle power supply B+ and third solenoid valve F3 it
Between, to control the on and off of third solenoid valve F3.
In the embodiment of the present invention, solenoid valve is the control unit of high current, in order to keep pressure regulating controller general
It is arranged in low current, invention increases the first relay J1, the second relay J2 and third relay J3, thus convenient
Control to the first solenoid valve F1, second solenoid valve F2 and third solenoid valve F3, saves cost.
In conclusion brake pressure compensation control system provided in an embodiment of the present invention, pressure regulating controller are detecting
When being electrically connected to ON grades of ignition lock, the pressure of parking gas receiver is detected by first pressure sensor, is sensed by second pressure
The pressure of device detection driving gas receiver；Detecting the pressure of the driving gas receiver less than the first setting value, the pressure tune
Section controller closes the first solenoid valve being mounted between air compressor machine and the parking gas receiver in gas circuit, to make air compressor machine can
To be individually for the driving gas receiver inflation；Detecting the pressure of the driving gas receiver less than the second setting value and described
The pressure of parking gas receiver is greater than second setting value and when second setting value is less than first setting value, the pressure
Power adjusting controller opens the second solenoid valve being mounted between the driving gas receiver and the parking gas receiver in gas circuit, with
Make the parking gas storage driving gas receiver supplement pressure.Through the invention, the safety of vehicle braking is improved.
Correspondingly, the present invention also provides a kind of brake pressure compensating control methods, this method comprises: working as ignition lock ON grades
When electrically connecting, the pressure of the parking gas receiver is obtained by the first pressure sensor being mounted on parking gas receiver, is passed through
The second pressure sensor being mounted on driving gas receiver obtains the pressure of the driving gas receiver；If the driving gas receiver
Pressure less than the first setting value, then close the first electromagnetism being mounted between air compressor machine and the parking gas receiver in gas circuit
Valve；If the pressure of the driving gas receiver is less than the second setting value and the pressure of the parking gas receiver is greater than described second
Setting value, second setting value are less than first setting value, then open and be mounted on the driving gas receiver and the parking
Second solenoid valve between gas receiver in gas circuit, so that the parking gas receiver is that the driving gas receiver supplements pressure.
It should be noted that the first setting value is determined by calibration from the second setting value by different motor vehicle braking systems,
For example, the first setting value is 0.6MPa, the second setting value is 0.58MPa.
It should be noted that in the embodiment of the present invention, when electrically connecting for ON grades of ignition lock, if the pressure of driving gas receiver
After the first setting value, the pressure regulating controller disconnects the second solenoid valve, i.e. disconnection parking gas receiver and driving
Gas circuit between gas receiver, and first solenoid valve is opened, with the gas circuit connected between air compressor machine and the parking gas receiver.
Brake pressure compensation control system provided in an embodiment of the present invention, when electrically connecting for ON grades of ignition lock, if driving
The pressure of gas receiver drops to the first setting value, and air compressor machine is made to be individually for driving gas receiver inflation；If the pressure for gas receiver of driving a vehicle
Power drops to the second setting value, is that driving gas receiver supplements pressure by parking gas receiver, ensure that the normal of driving gas receiver
Operating pressure, to ensure that the safety of vehicle braking.
Further, the method also includes: it is described driving gas receiver pressure less than the second setting value when, control alarm
Device alarm.In the embodiment of the present invention, once pressure regulating controller detect the pressure of driving gas receiver less than the second setting value,
Illustrate that revealing occurs in the gas of driving gas receiver or driver is used continuously point and stops excessively, needs driver to stop for driving storage
Inflator and the inflation of parking gas receiver, to ensure the safety of vehicle braking.
Further, the method also includes: detecting the third pressure biography being mounted in air compressor machine output gas circuit
When the pressure of sensor is declining and pressure fall is greater than setting range value in the unit time, first electromagnetism is closed
Valve and it is mounted on third solenoid valve in the air compressor machine and the driving gas receiver gas circuit, and controls the alarm device and alarm.
It should be noted that setting range value is determined by calibration according to different motor vehicle braking systems, such as setting width
Angle value is 0.21MPa.Further, it should be noted that setting range value can there are two, such as setting range value include first
Range value and the second range value；It is related whether the selection of the first range value and the second range value is operated with vehicle brake pedal；
When vehicle brake pedal is operated, declined and unit time internal pressure by judging the pressure of third pressure sensor Y3
Power fall is greater than the first range value, then pressure regulating controller closes the first solenoid valve F1 and third solenoid valve F3；
When vehicle brake pedal is not operated, by judging that the pressure of third pressure sensor Y3 declined and in the unit time
Pressure fall is greater than the second range value, then pressure regulating controller closes the first solenoid valve F1 and third solenoid valve
F3.First range value is greater than the second range value, for example, the first range value is 0.2MPa, the second range value is 0.1MPa.
In the embodiment of the present invention, by detecting the situation of change of air compressor machine output pressure, determine that air compressor machine output gas circuit is
No gas leakage, ensure that the safety of air compressor machine output gas circuit, to further ensure the safety of vehicle braking.
Further, the method also includes: declining and the unit time in the pressure of the third pressure sensor
When interior pressure fall is greater than setting range value, control the first indicator light flashing.In the embodiment of the present invention, pass through control first
Indicator light L1 flashing and alarm device L3 alarm, for reminding gas path failure before operator brake to need parking maintenance immediately.
Further, the method also includes: in the signal for detecting brake pedal position sensor and be mounted on braking
When 4th pressure sensor pressure of gas chamber is less than brake pressure limit value, the second indicator light of control flashes and controls the alarm device
Alarm, faulty to the gas circuit between brake chamber with prompt driving gas receiver, the brake pedal position sensor is for adopting
Collect vehicle brake pedal position.
It should be noted that the brake pressure limit value is the minimum pressure values for pushing brake chamber, the generally less than value
Braking pressure will be unable to push the distance rod movement in brake chamber afterwards, and the brake pressure limit value is true by braking mechanical part
Fixed, the brake pressure limit value of the braking system of different type vehicle configuration may be different, therefore the brake pressure limit value need to lead to
It crosses calibration to determine, for example, brake pressure limit is 0.35MPa.
In the embodiment of the present invention, pressure and brake pressure that pressure regulating controller passes through current 4th pressure sensor Y4
Limit value compares, and judges whether the pressure of brake chamber can maintain brake chamber to act；If being unable to maintain that brake chamber
Movement, then pressure regulating controller control the second indicator light L2 flashing, while make alarm device L3 alarm, remind driver it is current
Drive a vehicle gas receiver to brake chamber gas circuit it is faulty, need driver to pass through operation parking system, auxiliary using row and rob extension
Any mode or various ways parking in low grade brake, and overhaul.
In conclusion brake pressure compensation control system provided in an embodiment of the present invention and method, in continuous braking process
In, if pressure regulating controller will close air compressor machine to staying after detecting the pressure of driving gas receiver less than the first setting value
The inflation circuit of vehicle gas receiver inflation；If the air pressure of driving gas receiver continues to decline, the pressure for gas receiver of driving a vehicle is less than second
After setting value, pressure regulating controller will open gas circuit between parking gas receiver and driving gas receiver, make parking gas receiver to row
The inflation of vehicle gas receiver, and start alarm device alarm.The embodiment of the present invention inputs gas circuit (the i.e. output of air compressor machine in driving gas receiver
Gas circuit), driving gas receiver output gas circuit (gas circuit i.e. between driving gas receiver and brake chamber) can opens immediately when leaking air
Dynamic alarm lamp and alarm device, remind driver.If gas receiver of driving a vehicle inputs blowby gas path, system will be switched to driving gas receiver
Gas circuit is exported, pressure maintaining is carried out to system；If gas receiver of driving a vehicle exports blowby gas path, driver recognizes output by alarm lamp
Pulling parking switch can be used in circuit gas leakage, and the mode gradually deflated is braked by parking system.Through the invention, it improves
The safety of vehicle braking.
The embodiment of the present invention has been described in detail above, and specific embodiment used herein carries out the present invention
It illustrates, the above embodiments are only used to help understand system and method for the invention；Meanwhile for the one of this field
As technical staff, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, to sum up institute
It states, the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of brake pressure compensation control system, comprising: air compressor machine and respectively with the air compressor machine by air circuit connection
Parking gas receiver, driving gas receiver；It is characterized by further comprising: pressure regulating controller and respectively with the pressure adjust
The first pressure sensor of controller electrical connection, second pressure sensor, the first solenoid valve, second solenoid valve, ignition lock；It is described
First pressure sensor is mounted on the parking gas receiver, for acquiring the pressure of the parking gas receiver；Second pressure
Force snesor is mounted on the driving gas receiver, for acquiring the pressure of the driving gas receiver；The first solenoid valve peace
In gas circuit between the air compressor machine and the parking gas receiver, the second solenoid valve is mounted on the parking gas receiver
In gas circuit between the driving gas receiver；When electrically connecting for ON grades of ignition lock, described in the pressure regulating controller detection
The pressure of parking gas receiver and the driving gas receiver, and detecting the pressure of the driving gas receiver less than the first setting
When value, first solenoid valve is closed；The pressure of the driving gas receiver is being detected less than the second setting value and described is being stayed
The pressure of vehicle gas receiver is greater than second setting value and when second setting value is less than first setting value, described in opening
Second solenoid valve, so that the parking gas receiver is that the driving gas receiver supplements pressure.
2. brake pressure compensation control system according to claim 1, which is characterized in that the system also includes:
The alarm device being electrically connected with the pressure regulating controller；
The pressure regulating controller controls the police when detecting the pressure of the driving gas receiver less than the second setting value
Report device alarm.
3. brake pressure compensation control system according to claim 2, which is characterized in that the system also includes:
Third pressure sensor, the third solenoid valve being electrically connected respectively with the pressure regulating controller；The third pressure passes
Sensor is mounted in the air compressor machine output gas circuit, and the third solenoid valve is mounted on the air compressor machine and the driving gas receiver
Gas circuit on；
The pressure regulating controller is declining and in the unit time in the pressure for detecting the third pressure sensor
When pressure fall is greater than setting range value, first solenoid valve and the third solenoid valve are closed, and control the police
Report device alarm.
4. brake pressure compensation control system according to claim 3, which is characterized in that the system also includes:
The first indicator light being electrically connected with the pressure regulating controller；
The pressure regulating controller is declining and in the unit time in the pressure for detecting the third pressure sensor
When pressure fall is greater than setting range value, the first indicator light flashing is controlled.
5. brake pressure compensation control system according to claim 4, which is characterized in that the system also includes:
The 4th pressure sensor, brake pedal position sensor, the second finger being electrically connected respectively with the pressure regulating controller
Show lamp；The brake pedal position sensor is for acquiring vehicle brake pedal position；4th pressure sensor is mounted on
Brake chamber, the brake chamber and the driving gas receiver pass through air circuit connection；
The pressure regulating controller is detecting the signal of the brake pedal position sensor and the 4th pressure sensor
Pressure when being less than brake pressure limit value, control second indicator light and flash and control the alarm device and alarms, with presenting bank
Vehicle gas receiver is faulty to the gas circuit between brake chamber.
6. a kind of brake pressure compensating control method, which is characterized in that the described method includes:
When electrically connecting for ON grades of ignition lock, the parking is obtained by the first pressure sensor being mounted on parking gas receiver and is stored up
The pressure of inflator obtains the pressure of the driving gas receiver by the second pressure sensor being mounted on driving gas receiver；
If the pressure of the driving gas receiver is less than the first setting value, closing is mounted on air compressor machine and the parking gas receiver
Between the first solenoid valve in gas circuit；
If the pressure of the driving gas receiver is less than the second setting value and the pressure of the parking gas receiver is greater than described the
Two setting values, second setting value are less than first setting value, then opening is mounted on the driving gas receiver and stays with described
Second solenoid valve between vehicle gas receiver in gas circuit, so that the parking gas receiver is that the driving gas receiver supplements pressure.
7. brake pressure compensating control method according to claim 6, which is characterized in that the method also includes:
When the pressure of the driving gas receiver is less than the second setting value, control alarm device alarm.
8. brake pressure compensating control method according to claim 7, which is characterized in that the method also includes:
Detecting that the pressure for the third pressure sensor being mounted in air compressor machine output gas circuit declining and unit
When pressure fall is greater than setting range value in time, closes first solenoid valve and be mounted on the air compressor machine and institute
Third solenoid valve in driving gas receiver gas circuit is stated, and controls the alarm device alarm.
9. brake pressure compensating control method according to claim 8, which is characterized in that the method also includes:
Declining in the pressure of the third pressure sensor and pressure fall is greater than setting amplitude in the unit time
When value, control the first indicator light flashing.
10. brake pressure compensating control method according to claim 9, which is characterized in that the method also includes:
The signal for detecting brake pedal position sensor and the 4th pressure sensor pressure that is mounted on brake chamber it is small
When brake pressure limit value, the second indicator light of control flashes and controls the alarm device alarm, is extremely made with prompt driving gas receiver
The gas circuit taken offence between room is faulty, and the brake pedal position sensor is for acquiring vehicle brake pedal position.
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| CN201611182213.6A CN106427976B (en) | 2016-12-20 | 2016-12-20 | A kind of brake pressure compensation control system and method |
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| CN107054320A (en) * | 2017-04-21 | 2017-08-18 | 南京金龙客车制造有限公司 | A kind of car parking brake switchs alarm set |
| CN107215328B (en) * | 2017-06-12 | 2019-08-02 | 辽宁机电职业技术学院 | A kind of detection device and detection method for vehicle air braking system |
| CN107891856B (en) * | 2017-11-13 | 2019-06-04 | 浙江德翰制动系统有限公司 | Control method for automobile Integral air processing system |
| CN111547030A (en) * | 2019-02-11 | 2020-08-18 | 晟通科技集团有限公司 | Semitrailer air pressure overlow alarm device |
| CN113219210A (en) * | 2021-05-31 | 2021-08-06 | 东风商用车有限公司 | Vehicle speed sensor signal rationality diagnosis method and system |
| CN113335252B (en) * | 2021-07-21 | 2022-09-30 | 福建中科云杉信息技术有限公司 | Air pressure adjusting method for air brake and air brake control system |
| CN113771823B (en) * | 2021-09-02 | 2022-08-30 | 东风华神汽车有限公司 | Automobile brake monitoring system and using method thereof |
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| US6994191B2 (en) * | 2003-11-04 | 2006-02-07 | Arvinmeritor Technology, Llc | Pneumatically actuated parking brake |
| CN201685810U (en) * | 2010-05-07 | 2010-12-29 | 北汽福田汽车股份有限公司 | Air pressure brake system |
| CN201736980U (en) * | 2010-06-09 | 2011-02-09 | 北汽福田汽车股份有限公司 | Parking air pressure brake system |
| CN201784611U (en) * | 2010-09-18 | 2011-04-06 | 宝鸡华山工程车辆有限责任公司 | Medium-sized double-shaft self-dumping truck braking system |
| CN202144252U (en) * | 2011-05-30 | 2012-02-15 | 韦伟 | Pneumatic brake emergency device for automobiles |
| CN202608757U (en) * | 2012-04-25 | 2012-12-19 | 北汽福田汽车股份有限公司 | Emergency brake and parking brake device and air-pressure braked vehicle |
| CN105365805A (en) * | 2014-08-26 | 2016-03-02 | 王勤黄 | Pneumatic braking system capable of preventing vehicle from having malfunctions |
| CN105128835B (en) * | 2015-07-29 | 2017-08-29 | 安徽安凯汽车股份有限公司 | A kind of emergent deactivation system of car parking brake and its release method |
| CN205706657U (en) * | 2016-06-30 | 2016-11-23 | 安徽江淮汽车股份有限公司 | A kind of Pneumatic braking system aerating device |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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