CN116572924A - Method for monitoring air pressure of braking air circuit of commercial vehicle - Google Patents
Method for monitoring air pressure of braking air circuit of commercial vehicle Download PDFInfo
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- CN116572924A CN116572924A CN202310665312.3A CN202310665312A CN116572924A CN 116572924 A CN116572924 A CN 116572924A CN 202310665312 A CN202310665312 A CN 202310665312A CN 116572924 A CN116572924 A CN 116572924A
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- air
- braking
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- air pressure
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012806 monitoring device Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000008447 perception Effects 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The application relates to a method for monitoring the air pressure of a braking air circuit of a commercial vehicle, which comprises the following steps: s1, when a vehicle is started, a braking instruction is sent, and the braking system receives the instruction and performs braking operation; s2, judging a vehicle braking system by the monitoring device, and judging whether the braking system is damaged or not; s3, the monitoring device monitors the braking air path through a plurality of sensors. According to the method for realizing the monitoring of the air pressure of the braking air circuit of the commercial vehicle, through the monitoring device assembled at the key part of the braking air circuit, the terminal controller performs real-time control, monitoring data are transmitted to the controller in real time to perform data processing, so that the controller transmits the processed data to an external display device or a vehicle CAN bus, when the air pressure value of the sensor is lower than a set value, whether air leakage occurs or not CAN be judged, the value of the sensor CAN be compared, the air leakage position CAN be searched, the monitoring accuracy is improved, meanwhile, the leakage position CAN be judged by a vehicle owner and a maintainer conveniently, and the subsequent maintenance work on the vehicle is facilitated.
Description
Technical Field
The application relates to the technical field of monitoring of air pressure of a brake air circuit of a commercial vehicle, in particular to a method for monitoring the air pressure of the brake air circuit of the commercial vehicle.
Background
The commercial vehicle is a vehicle for transporting personnel and goods in design and technical characteristics, the commercial vehicle comprises all cargo vehicles and more than 9 buses, the vehicles are divided into five types of buses, trucks, semi-trailer traction vehicles, incomplete buses and incomplete buses, in the whole industry, the concept of the commercial vehicle is mainly defined from different uses of the commercial vehicle, the commercial vehicle is divided into two major types of buses and trucks in habit, the bus belongs to one type of commercial vehicle, the urban traffic is increasingly convenient along with the acceleration of the urban process, and the urban bus becomes increasingly the main travel mode of citizens.
At present, urban buses are widely applied to pure electric vehicles with new energy sources, pneumatic braking is adopted for braking, air is supplied by an air compressor, then a braking air channel is involved, a method for monitoring whether the vehicle braking air channel is leaked is generally judged by adopting air pressure change, namely whether the leakage is caused or not is judged by monitoring whether the air pressure change of the braking air channel and the like is normal or not through a corresponding air pressure monitoring structure, and as the commercial vehicle pneumatic braking system is provided with a plurality of pipelines and joints, and a wheel rim mechanism is complex in structure, various failure risks exist, the current braking system only detects the air pressure of an air reservoir, faults of a vehicle brake, an air chamber and the like and the braking process are not effectively monitored, the monitoring accuracy is affected, and the vehicle fault investigation is difficult.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides a method for realizing the air pressure monitoring of a brake air channel of a commercial vehicle, which has the advantages of convenience in monitoring, simplicity in fault investigation and the like, and solves the problems of inconvenience in air pressure monitoring and difficulty in fault investigation of the conventional brake air channel of the commercial vehicle.
In order to achieve the above purpose, the present application provides the following technical solutions: a method for monitoring the air pressure of a brake air circuit of a commercial vehicle comprises the following steps:
s1, when a vehicle is started, a braking instruction is sent, and the braking system receives the instruction and performs braking operation;
s2, judging a vehicle braking system by the monitoring device, and judging whether the braking system is damaged or not;
s3, the monitoring device monitors the brake gas circuit through a plurality of sensors, transmits monitoring data to the terminal controller, processes the data by the terminal controller, and transmits the data after finishing to the vehicle CAN bus;
s4, repeating the steps to perform secondary detection when the data are abnormal or no abnormality exists, and judging that the brake air channel is damaged after the secondary detection is abnormal;
s5, comparing data of the sensors on the corresponding air paths, and judging that the specific positions of the brake air paths are damaged.
Further, the plurality of sensors are arranged on the braking air channel for sensing air pressure change of the air channel, and the braking air channel comprises an air pressure pipeline, an air chamber, an air storage cylinder, a vehicle brake and other air channel components for braking.
Further, during running of the vehicle, the sensor monitors the braking air path of the vehicle, and when leakage occurs in the air path, countermeasures are taken for the vehicle according to the air leakage degree grade, wherein the countermeasures comprise alarming or speed limiting for the vehicle.
Further, the output of the sensor is electrically connected with the input of the monitoring device, the output of the monitoring device is electrically connected with the input of the terminal controller, and the output of the terminal controller is electrically connected with the input of the vehicle CAN bus.
Further, the monitoring device comprises a signal receiving and transmitting module for receiving the sensor signals, a storage module for storing data, and the terminal controller comprises a processing module for processing the data.
Further, the sensor is a pressure sensor, and when air leakage occurs, the air pressure changes and changes the value of the pressure sensor, so that whether air leakage occurs or not is judged.
Further, the vehicle CAN bus is connected with a display terminal, the display terminal is used for displaying the air pressure value, the air pressure value of each sensor on the air path is compared, and when the air pressure value is lower than a set threshold value, the air leakage of the corresponding air path is indicated.
Further, the output end of the vehicle CAN bus is electrically connected with an alarm, the air pressure value is low, when the air leakage condition is serious or a plurality of parts on the air circuit leak air, the alarm works and reminds a driver, otherwise, the display terminal reminds the driver of air leakage.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
according to the method for realizing the monitoring of the air pressure of the braking air circuit of the commercial vehicle, through the monitoring device assembled at the key part of the braking air circuit, the terminal controller performs real-time control, monitoring data are transmitted to the controller in real time to perform data processing, so that the controller transmits the processed data to an external display device or a vehicle CAN bus, when the air pressure value of the sensor is lower than a set value, whether air leakage occurs or not CAN be judged, the value of the sensor CAN be compared, the air leakage position CAN be searched, the monitoring accuracy is improved, meanwhile, the leakage position CAN be judged by a vehicle owner and a maintainer conveniently, and the subsequent maintenance work on the vehicle is facilitated.
Drawings
FIG. 1 is a flow chart of the present application;
fig. 2 is a system block diagram of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1-2, a method for monitoring air pressure of a brake air path of a commercial vehicle in the present embodiment includes the following steps:
s1, when a vehicle is started, a braking instruction is sent, and the braking system receives the instruction and performs braking operation;
s2, judging a vehicle braking system by the monitoring device, and judging whether the braking system is damaged or not;
s3, the monitoring device monitors the brake gas path through a plurality of sensors, transmits monitoring data to the terminal controller, processes the data by the terminal controller, transmits the data after the completion to the vehicle CAN bus, comprises a signal receiving and transmitting module for receiving sensor signals, a storage module for storing the data, and a processing module for processing the data, wherein the terminal controller comprises a pressure sensor, and when gas leakage occurs, the gas pressure changes and changes the numerical value of the pressure sensor so as to judge whether the gas leakage occurs;
s4, repeating the steps to perform secondary detection when the data are abnormal or no abnormality exists, and judging that the brake air channel is damaged after the secondary detection is abnormal;
s5, comparing data of the sensors on the corresponding air paths, judging that the specific positions of the brake air paths are damaged, wherein the output ends of the sensors are electrically connected with the input ends of the monitoring devices, the output ends of the monitoring devices are electrically connected with the input ends of the terminal controllers, and the output ends of the terminal controllers are electrically connected with the input ends of the vehicle CAN buses.
Wherein, a plurality of sensors are all located and are used for perception gas circuit atmospheric pressure variation on the braking gas circuit, and the braking gas circuit includes gas circuit parts that are used for braking such as pneumatic line, air chamber, gas receiver and vehicle stopper, and on being used for braking such as above-mentioned gas circuit pipeline, air chamber, gas receiver and vehicle stopper through the sensor setting, whether the gas circuit part that conveniently judges corresponds damages, improves maintenance efficiency.
Meanwhile, during running of the vehicle, the sensor monitors the braking air passage of the vehicle, and when leakage occurs in the air passage, countermeasures are taken for the vehicle according to the air leakage degree grade, wherein the countermeasures comprise alarming or speed limiting for the vehicle, so that the safety can be improved.
And the vehicle CAN bus is connected with a display terminal, the display terminal is used for displaying the air pressure value, the air pressure value on each sensor on the air path is compared, when the air pressure value is lower than a set threshold value, the air pressure value is indicated to be air leakage in the corresponding air path, the output end of the vehicle CAN bus is electrically connected with an alarm, the air pressure value is lower, the alarm works and reminds a driver when the air leakage occurs in a plurality of parts on the air path or the air leakage condition is serious, and otherwise, the display terminal is used for prompting the driver of the air leakage.
In the embodiment, the air pressure is monitored in real time through a plurality of sensors assembled at key parts of the brake air path, then monitoring signals are transmitted to the CAN bus of the vehicle, and the air pressure value is compared, so that whether the air path is damaged or not is judged.
The working principle of the embodiment is as follows:
through the monitoring devices who assembles the key position of brake gas way, carry out real-time control by terminal controller, monitor data real-time transmission carries out data processing to data transmission external display device or vehicle CAN bus after will handling by the controller, when sensor atmospheric pressure value is less than the setting value, alright judge whether gas leakage, and the numerical value of contrast sensor, alright seek gas leakage position, thereby improved monitoring accuracy promptly, simultaneously still CAN make things convenient for car owner and maintenance personal to judge and reveal the position, the follow-up maintenance work to the vehicle of convenience.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The method for realizing the monitoring of the air pressure of the braking air circuit of the commercial vehicle is characterized by comprising the following steps of:
s1, when a vehicle is started, a braking instruction is sent, and the braking system receives the instruction and performs braking operation;
s2, judging a vehicle braking system by the monitoring device, and judging whether the braking system is damaged or not;
s3, the monitoring device monitors the brake gas circuit through a plurality of sensors, transmits monitoring data to the terminal controller, processes the data by the terminal controller, and transmits the data after finishing to the vehicle CAN bus;
s4, repeating the steps to perform secondary detection when the data are abnormal or no abnormality exists, and judging that the brake air channel is damaged after the secondary detection is abnormal;
s5, comparing data of the sensors on the corresponding air paths, and judging that the specific positions of the brake air paths are damaged.
2. The method for monitoring the air pressure of the braking air circuit of the commercial vehicle according to claim 1 is characterized by comprising the following steps: the plurality of sensors are arranged on the braking air channel for sensing air pressure change of the air channel, and the braking air channel comprises an air pressure pipeline, an air chamber, an air storage cylinder, a vehicle brake and other air channel components for braking.
3. The method for monitoring the air pressure of the braking air circuit of the commercial vehicle according to claim 1 is characterized by comprising the following steps: during running of the vehicle, the sensor monitors the braking air path of the vehicle, and when the air path leaks, countermeasures are taken for the vehicle according to the grade of the air leakage degree, wherein the countermeasures include alarming or limiting the speed of the vehicle.
4. The method for monitoring the air pressure of the braking air circuit of the commercial vehicle according to claim 1 is characterized by comprising the following steps: the output end of the sensor is electrically connected with the input end of the monitoring device, the output end of the monitoring device is electrically connected with the input end of the terminal controller, and the output end of the terminal controller is electrically connected with the input end of the vehicle CAN bus.
5. The method for monitoring the air pressure of the braking air circuit of the commercial vehicle according to claim 1 is characterized by comprising the following steps: the monitoring device comprises a signal receiving and transmitting module for receiving the sensor signals, a storage module for storing data, and a terminal controller comprising a processing module for processing the data.
6. The method for monitoring the air pressure of the braking air circuit of the commercial vehicle according to claim 1 is characterized by comprising the following steps: the sensor is a pressure sensor, and when air leakage occurs, the pressure of the air changes and the numerical value of the pressure sensor is changed, so that whether the air leakage occurs or not is judged.
7. The method for monitoring the air pressure of the braking air circuit of the commercial vehicle according to claim 1 is characterized by comprising the following steps: the vehicle CAN bus is connected with a display terminal, the display terminal is used for displaying the air pressure value, the air pressure value of each sensor on the air path is compared, and when the air pressure value is lower than a set threshold value, the air leakage of the corresponding air path is indicated.
8. The method for monitoring the air pressure of the braking air circuit of the commercial vehicle according to claim 1 is characterized by comprising the following steps: the output end of the vehicle CAN bus is electrically connected with an alarm, the air pressure value is lower, when the air leakage condition is serious or a plurality of parts on the air circuit leak air, the alarm works and reminds a driver, otherwise, the display terminal reminds the driver of air leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310665312.3A CN116572924A (en) | 2023-06-07 | 2023-06-07 | Method for monitoring air pressure of braking air circuit of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310665312.3A CN116572924A (en) | 2023-06-07 | 2023-06-07 | Method for monitoring air pressure of braking air circuit of commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116572924A true CN116572924A (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310665312.3A Pending CN116572924A (en) | 2023-06-07 | 2023-06-07 | Method for monitoring air pressure of braking air circuit of commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116572924A (en) |
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2023
- 2023-06-07 CN CN202310665312.3A patent/CN116572924A/en active Pending
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