CN113983092B - Visual monitoring method and system for working state of friction plate - Google Patents
Visual monitoring method and system for working state of friction plate Download PDFInfo
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- CN113983092B CN113983092B CN202111206757.2A CN202111206757A CN113983092B CN 113983092 B CN113983092 B CN 113983092B CN 202111206757 A CN202111206757 A CN 202111206757A CN 113983092 B CN113983092 B CN 113983092B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000000007 visual effect Effects 0.000 title claims abstract description 29
- 239000003086 colorant Substances 0.000 claims abstract description 10
- 230000001939 inductive effect Effects 0.000 claims description 3
- 238000004590 computer program Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
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- 230000008859 change Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/026—Apparatus for indicating wear using electrical detection or indication means indicating different degrees of lining wear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
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Abstract
The embodiment of the invention provides a visual monitoring method and a visual monitoring system for a working state of a friction plate, and belongs to the technical field of friction plate monitoring. Comprising the following steps: acquiring the clutch times of a clutch of a vehicle in a preset time range, the deceleration of the vehicle, and the current temperatures of the positions with different radiuses; determining the corresponding size safety deformation extremum of the current temperature of each of the different radius positions; determining actual deformation parameters of the friction plates at all positions; establishing a friction plate comparison model based on the current size parameter and the standard size parameter; determining the actual display colors corresponding to the differences of the actual deformation parameters and the dimension safety deformation extremum on each position of the friction plate comparison model; and performing display on the working state of the friction plate at a control terminal of the vehicle based on a comparison model of the actual display color and the friction plate. The visual monitoring method and the visual monitoring system for the working state of the friction plate can monitor the working state of the friction plate at any time, and avoid the damage of the clutch caused by the deformation of the friction plate.
Description
Technical Field
The invention relates to the technical field of friction plate monitoring, in particular to a visual monitoring method and a visual monitoring system for the working state of a friction plate.
Background
In general, there are two engagement methods for the dry clutch, and heat is easily generated in either engagement method. One is instantaneous impact engagement, where the impact energy is converted to heat, which causes an increase in temperature due to inability to dissipate heat quickly, and the other is frequent engagement, which also causes an increase in temperature inside the clutch. The high-temperature friction plate can deform, so that the surface stress of the friction plate is uneven, and the service life of the friction plate is easily reduced. At present, certain concave angle pieces are generally designed on the friction plate along the radial direction so as to prevent deformation. However, the temperature rise and the deformation of the friction plate still affect the clutch function.
Disclosure of Invention
The embodiment of the invention aims to provide a visual monitoring method and a visual monitoring system for the working state of a friction plate, which can monitor the working state of the friction plate at any time and avoid the damage of a clutch caused by the deformation of the friction plate.
In order to achieve the above object, an embodiment of the present invention provides a method for visually monitoring a working state of a friction plate, where the method for visually monitoring a working state of a friction plate includes: acquiring the clutch times of a clutch of a vehicle in a preset time range and the deceleration of the running of the vehicle; when the clutch times are larger than a preset time threshold or the deceleration of the vehicle running is larger than a preset deceleration threshold, acquiring the respective current temperatures of the different radial positions of the friction plate; determining the corresponding dimension safety deformation extremum of the current temperature of each of the different radius positions according to the corresponding relation between the preset temperature and the dimension safety deformation extremum; determining actual deformation parameters of the friction plate at each position according to the comparison result of the current size parameters and the standard size parameters of the friction plate; establishing a friction plate comparison model based on the current size parameter and the standard size parameter; according to the corresponding relation between the preset difference value and the display color, determining the actual display color corresponding to the difference value of the actual deformation parameter and the dimension safety deformation extremum on each position of the friction plate comparison model; and performing display at a control terminal of the vehicle based on the comparison model of the actual display color and the friction plate.
Preferably, the determining the dimensional safety deformation extremum corresponding to the current temperature of each of the different radius positions according to the preset relationship between the temperature and the dimensional safety deformation extremum includes:
obtaining deformation parameters corresponding to deformation of the friction plate at respective temperatures of different radial positions under experimental conditions and corresponding service lives; and
And determining the size safety deformation extremum of the friction plate according to the deformation parameters under the experimental condition and the corresponding service life.
Preferably, the determining the dimension safety deformation extremum of the friction plate according to the deformation parameter under the experimental condition and the corresponding service life thereof includes:
Summarizing deformation parameters corresponding to the service life being longer than a preset service life threshold value into a dimension safety deformation extremum of the friction plate at the radius position; wherein the service life threshold is configured to correlate to an average service life of the friction plate under experimental conditions.
Preferably, the establishing the friction plate comparison model based on the current dimension parameter and the standard dimension parameter includes:
establishing a current friction plate model under the current size parameter and a standard friction plate model under the standard size parameter; and
And merging the overlapped part of the current friction plate model and the standard friction plate model and highlighting the part of the current friction plate model, which is different from the standard friction plate model, so as to obtain the friction plate comparison model.
Preferably, the visual monitoring method for the working state of the friction plate further comprises the following steps:
Acquiring friction plate replacement request information, the actual service life of the current friction plate and a target average service life;
when the actual service life is smaller than the target average service life, acquiring historical deformation parameters of the friction plate; and
Determining an optimal concave angle of the friction plate based on the historical deformation parameters; wherein the optimal indent angle is configured to be adapted to a driver of the vehicle.
In addition, the invention also provides a visual monitoring system for the working state of the friction plate, which comprises:
a data acquisition unit for acquiring the clutch times of the clutch of the vehicle in a preset time range and the deceleration of the vehicle running;
the temperature acquisition unit is used for acquiring the respective current temperatures of different radial positions of the friction plate when the clutch times are larger than a preset time threshold or the deceleration of the vehicle running is larger than a preset deceleration threshold;
The range determining unit is used for determining the size safety deformation extremum corresponding to the current temperature of each of the different radius positions according to the preset relationship between the temperature and the size safety deformation extremum;
The deformation parameter determining unit is used for determining the actual deformation parameters of the friction plate at each position according to the comparison result of the current size parameters and the standard size parameters of the friction plate;
The model building unit is used for building a friction plate comparison model based on the current size parameter and the standard size parameter;
the color determining unit is used for determining the actual display colors corresponding to the difference values of the actual deformation parameters and the dimension safety deformation extremum on each position of the friction plate comparison model according to the corresponding relation between the preset difference values and the display colors; and
And the display determining unit is used for executing display on the control terminal of the vehicle based on the comparison model of the actual display color and the friction plate.
Preferably, the range determining unit includes:
The service life acquisition module is used for acquiring deformation parameters corresponding to the deformation of the friction plate at the respective temperatures of different radial positions under the experimental condition and the corresponding service life; and
And the deformation range determining module is used for determining the size safety deformation extremum of the friction plate according to the deformation parameters under the experimental condition and the service life corresponding to the deformation parameters.
Preferably, the deformation range determining module determines the dimension safety deformation extremum of the friction plate according to the deformation parameter under the experimental condition and the service life corresponding to the deformation parameter, and the dimension safety deformation extremum comprises:
The deformation range determining module is used for inducing deformation parameters corresponding to the service life being longer than a preset service life threshold value into a dimension safety deformation extremum of the friction plate at the radius position; wherein the service life threshold is configured to correlate to an average service life of the friction plate under experimental conditions.
In addition, the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions for enabling a machine to execute the visual monitoring method for the working state of the friction plate.
In addition, the present invention also provides a processor for executing a program, wherein the program is executed to execute: the visual monitoring method for the working state of the friction plate is provided.
Through the technical scheme, the working state of the friction plate can be displayed by using the designed visual monitoring method of the working state of the friction plate, whether the friction plate is deformed or works normally, whether the deformation condition is serious or not, and whether early warning is needed or not. The working state of the friction plate is directly displayed by using a visual monitoring mode, and the friction plate is monitored only when the impact (sudden deceleration) occurs or the clutch frequency is excessive, so that the monitoring accuracy is ensured, and unnecessary monitoring resource consumption is avoided.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain, without limitation, the embodiments of the invention. In the drawings:
FIG. 1 is a flow chart illustrating a method of visually monitoring the operating condition of a friction plate in accordance with the present invention; and
FIG. 2 is a block diagram of a friction plate operating condition visualization monitoring system.
Detailed Description
The following describes the detailed implementation of the embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
FIG. 1 is a flowchart of a method for visually monitoring the working state of a friction plate according to the present invention, as shown in FIG. 1, the method for visually monitoring the working state of a friction plate includes:
S101, acquiring the clutch times of a clutch of a vehicle in a preset time range and the deceleration of the running of the vehicle; the preset time range may be within 1min, the number of times of clutch is the number of times of starting and stopping or closing or opening the clutch, that is, whether the vehicle starts and stops for a long time within 1min, the friction plate may be overheated due to multiple times of clutch contact, and the deceleration of vehicle running is mainly the situation of sudden braking of the vehicle, that is, whether the vehicle suddenly stops to cause overheating of the friction plate. The friction plate is worn whether it is a clutch number or a sudden stop of the vehicle, so that the friction plate may be deformed or damaged.
S102, when the clutch times are larger than a preset time threshold or the deceleration of the vehicle running is larger than a preset deceleration threshold, acquiring the respective current temperatures of different radius positions of the friction plate; the deceleration threshold may be 10m/s 2, i.e. the vehicle is suddenly stopped, and the number of times threshold may be 10, i.e. the vehicle may cause friction of the friction plate after a plurality of start-stops in a short time, which may be an automatic vehicle. The frequency threshold can be designed according to actual conditions, for example, the frequency threshold can be set according to a test value of the possibility of deformation of the brake pad in actual use, and the deceleration threshold can be judged according to a historical reference value affecting overheat of the friction pad caused by vehicle deceleration. In the invention, the temperature of the friction plate can be sensed by adopting a passive temperature sensor, a data acquisition device matched with the passive temperature sensor is designed at a monitoring point, and then the temperature value of the friction plate is acquired through the data acquisition device.
S103, determining the corresponding size safety deformation extremum of the current temperature of each of the different radius positions according to the preset relation between the temperature and the corresponding size safety deformation extremum. The dimension safety deformation extreme is mainly represented by the dimension within a reasonable variation range, for example, the dimension safety deformation extreme is 0.11mm at the place with the radius of 8mm, and the dimension safety deformation extreme is within the range of plus or minus 0.05mm at the place with the radius of 10mm, which is determined by the standard range, and the determination of the range is mainly realized by a position sensor, for example, a position sensor is designed at the initial standard position, then the current dimension variation condition is judged according to the comparison of the actual position and the initial position in actual use, and the setting of the dimension safety deformation extreme initial value is related to the service life condition affecting the friction plate.
S104, determining actual deformation parameters of the friction plate at each position according to the comparison result of the current size parameters and the standard size parameters of the friction plate; the difference between the current dimension parameter and the standard dimension parameter may be considered as an actual deformation parameter, that is, corresponds to the above-mentioned safety variation range, for example, in the standard case, when no deformation occurs, the sensor position is at the a position, representing 8mm, after use, deformation occurs, the sensor position is at the b position, representing 8.05mm, and the b position is different from the a position by 0.05mm, where 0.05mm is the actual deformation parameter.
S105, establishing a friction plate comparison model based on the current size parameter and the standard size parameter; the friction plate comparison model comprises models corresponding to the current size parameter and the standard size parameter respectively, and the difference is that the positions of the standard size parameter and the current size parameter are shown by using a dotted line, so that the friction plate comparison model is convenient to check, the same parts are overlapped, and the positions of the current size parameter and the standard size parameter are shown by using a solid line with heavier color, so that the friction plate comparison model is convenient to check.
S106, determining the actual display colors corresponding to the difference values of the actual deformation parameters and the dimension safety deformation extremum on each position of the friction plate comparison model according to the corresponding relation between the preset difference values and the display colors. Wherein for example the safety variation is 0.11mm and in practice the actual deformation parameter is 0.05mm, the difference between the two is 0.06mm. The different differences correspond to different colors, wherein the fewer the differences are, the heavier the color is, the color can be set by the user, and in addition, when the safety variation range is exceeded, the value is black, so that the safety potential hazard is proved to exist.
And S107, performing display on the working state of the friction plate at a control terminal of the vehicle based on the comparison model of the actual display color and the friction plate. The specific display position can be a control terminal of the vehicle or a terminal module connected to the Internet of vehicles and used for acquiring the comparison model of the friction plate and the color display of the friction plate, so that the service condition of the friction plate of the vehicle can be known outside. The working state of the friction plate comprises deformation of sudden stop work and high-temperature deformation of multiple contacts, the working state may have a certain influence after deformation of other shapes, certain potential safety hazards exist, for example, the working state is abnormal after the working state exceeds a safety threshold, and the working state can be displayed as 'abnormal' by words.
Preferably, in S103, determining the dimensional safety deformation extremum corresponding to the current temperature of each of the different radius positions according to the preset relationship between the temperature and the dimensional safety deformation extremum includes:
Obtaining deformation parameters corresponding to deformation of the friction plate at respective temperatures of different radial positions under the experimental condition and corresponding service lives of the friction plate, for example, the service life of the friction plate under the experimental condition of the temperature is 3 years, and the deformation parameters are a; and
And determining the size safety deformation extremum of the friction plate according to the deformation parameters under the experimental condition and the corresponding service life.
Preferably, the determining the dimension safety deformation extremum of the friction plate according to the deformation parameter under the experimental condition and the corresponding service life thereof includes:
Summarizing deformation parameters corresponding to the service life being longer than a preset service life threshold value into a dimension safety deformation extremum of the friction plate at the radius position; wherein the service life threshold is configured to correlate to an average service life of the friction plate under experimental conditions. It should be emphasized that all generalizations are made for a single location, for example, generalizing all deformation parameters for that location for more than 3 years of service life to obtain the range 1-2, 10000 experiments were performed, where the range is normally distributed, taking the median 60% value to average as the dimensional safety deformation extremum. Wherein, as can be seen from the above conditions, each position (radius) corresponds to a safe deformation extremum.
Preferably, the establishing the friction plate comparison model based on the current dimension parameter and the standard dimension parameter includes:
establishing a current friction plate model under the current size parameter and a standard friction plate model under the standard size parameter; and
And merging the overlapped part of the current friction plate model and the standard friction plate model and highlighting the part of the current friction plate model, which is different from the standard friction plate model, so as to obtain the friction plate comparison model.
Preferably, the visual monitoring method for the working state of the friction plate further comprises the following steps:
Acquiring friction plate replacement request information, the actual service life of the current friction plate and a target average service life;
when the actual service life is smaller than the target average service life, acquiring historical deformation parameters of the friction plate; and
Determining an optimal concave angle of the friction plate based on the historical deformation parameters; wherein the optimal indent angle is configured to be adapted to a driver of the vehicle. The concave angle of the friction plate can improve the service life of the friction plate, the driving habits of different people and the road sections frequently driven can influence the service life of the friction plate, of course, different using habits generally correspond to different types of optimal concave angles, for example, the concave angle used by a urban scooter is what, the optimal concave angle of the scooter is frequently told to be another value, and the friction plate can be replaced according to actual requirements when being replaced.
In addition, as shown in fig. 2, a visual monitoring system for a working state of a friction plate includes:
a data acquisition unit for acquiring the clutch times of the clutch of the vehicle in a preset time range and the deceleration of the vehicle running;
the temperature acquisition unit is used for acquiring the respective current temperatures of different radial positions of the friction plate when the clutch times are larger than a preset time threshold or the deceleration of the vehicle running is larger than a preset deceleration threshold;
The range determining unit is used for determining the size safety deformation extremum corresponding to the current temperature of each of the different radius positions according to the preset relationship between the temperature and the size safety deformation extremum;
The deformation parameter determining unit is used for determining the actual deformation parameters of the friction plate at each position according to the comparison result of the current size parameters and the standard size parameters of the friction plate;
The model building unit is used for building a friction plate comparison model based on the current size parameter and the standard size parameter;
the color determining unit is used for determining the actual display colors corresponding to the difference values of the actual deformation parameters and the dimension safety deformation extremum on each position of the friction plate comparison model according to the corresponding relation between the preset difference values and the display colors; and
And the display determining unit is used for executing display on the control terminal of the vehicle based on the comparison model of the actual display color and the friction plate.
Preferably, the range determining unit includes:
The service life acquisition module is used for acquiring deformation parameters corresponding to the deformation of the friction plate at the respective temperatures of different radial positions under the experimental condition and the corresponding service life; and
And the deformation range determining module is used for determining the size safety deformation extremum of the friction plate according to the deformation parameters under the experimental condition and the service life corresponding to the deformation parameters.
Preferably, the deformation range determining module determines the dimension safety deformation extremum of the friction plate according to the deformation parameter under the experimental condition and the service life corresponding to the deformation parameter, and the dimension safety deformation extremum comprises:
The deformation range determining module is used for inducing deformation parameters corresponding to the service life being longer than a preset service life threshold value into a dimension safety deformation extremum of the friction plate at the radius position; wherein the service life threshold is configured to correlate to an average service life of the friction plate under experimental conditions.
In addition, the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions for enabling a machine to execute the visual monitoring method for the working state of the friction plate.
In addition, the present invention also provides a processor for executing a program, wherein the program is executed to execute: the visual monitoring method for the working state of the friction plate is provided.
The embodiment of the invention provides a storage medium, wherein a program is stored on the storage medium, and the program realizes the visual monitoring method of the working state of the friction plate when being executed by a processor.
The embodiment of the invention provides a processor which is used for running a program, wherein the visual monitoring method for the working state of a friction plate is executed when the program runs.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes the following steps when executing the program: such as the steps shown in fig. 1.
The application also provides a computer program product adapted to perform, when executed on a data processing device, a program initialized with the method steps of: such as the steps shown in fig. 1.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that 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.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (10)
1. The visual monitoring method for the working state of the friction plate is characterized by comprising the following steps of:
acquiring the clutch times of a clutch of a vehicle in a preset time range and the deceleration of the running of the vehicle;
When the clutch times are larger than a preset time threshold or the deceleration of the vehicle running is larger than a preset deceleration threshold, acquiring the respective current temperatures of the different radial positions of the friction plate;
Determining the corresponding dimension safety deformation extremum of the current temperature of each of the different radius positions according to the corresponding relation between the preset temperature and the dimension safety deformation extremum;
Determining actual deformation parameters of the friction plate at each position according to the comparison result of the current size parameters and the standard size parameters of the friction plate;
Establishing a friction plate comparison model based on the current size parameter and the standard size parameter;
According to the corresponding relation between the preset difference value and the display color, determining the actual display color corresponding to the difference value of the actual deformation parameter and the dimension safety deformation extremum on each position of the friction plate comparison model; and
And executing display on the working state of the friction plate at a control terminal of the vehicle based on the comparison model of the actual display color and the friction plate.
2. The visual monitoring method of a working state of a friction plate according to claim 1, wherein the determining the dimension safety deformation extremum corresponding to the current temperature of each of the different radius positions according to the preset relationship between the temperature and the dimension safety deformation extremum comprises:
obtaining deformation parameters corresponding to deformation of the friction plate at respective temperatures of different radial positions under experimental conditions and corresponding service lives; and
And determining the size safety deformation extremum of the friction plate according to the deformation parameters under the experimental condition and the corresponding service life.
3. The visual monitoring method of a working state of a friction plate according to claim 2, wherein the determining the safe deformation extremum of the friction plate according to the deformation parameter under the experimental condition and the corresponding service life comprises:
Summarizing deformation parameters corresponding to the service life being longer than a preset service life threshold value into a dimension safety deformation extremum of the friction plate at the radius position; wherein the service life threshold is configured to correlate to an average service life of the friction plate under experimental conditions.
4. The method for visually monitoring a working state of a friction plate according to claim 1, wherein the step of establishing a friction plate comparison model based on the current dimension parameter and the standard dimension parameter comprises the steps of:
establishing a current friction plate model under the current size parameter and a standard friction plate model under the standard size parameter; and
And merging the overlapped part of the current friction plate model and the standard friction plate model and highlighting the part of the current friction plate model, which is different from the standard friction plate model, so as to obtain the friction plate comparison model.
5. The method for visually monitoring the working state of a friction plate according to claim 1, further comprising:
Acquiring friction plate replacement request information, the actual service life of the current friction plate and a target average service life;
when the actual service life is smaller than the target average service life, acquiring historical deformation parameters of the friction plate; and
Determining an optimal concave angle of the friction plate based on the historical deformation parameters; wherein the optimal indent angle is configured to be adapted to a driver of the vehicle.
6. The utility model provides a visual monitoring system of friction disc operating condition which characterized in that, visual monitoring system of friction disc operating condition includes:
a data acquisition unit for acquiring the clutch times of the clutch of the vehicle in a preset time range and the deceleration of the vehicle running;
the temperature acquisition unit is used for acquiring the respective current temperatures of different radial positions of the friction plate when the clutch times are larger than a preset time threshold or the deceleration of the vehicle running is larger than a preset deceleration threshold;
The range determining unit is used for determining the size safety deformation extremum corresponding to the current temperature of each of the different radius positions according to the preset relationship between the temperature and the size safety deformation extremum;
The deformation parameter determining unit is used for determining the actual deformation parameters of the friction plate at each position according to the comparison result of the current size parameters and the standard size parameters of the friction plate;
The model building unit is used for building a friction plate comparison model based on the current size parameter and the standard size parameter;
the color determining unit is used for determining the actual display colors corresponding to the difference values of the actual deformation parameters and the dimension safety deformation extremum on each position of the friction plate comparison model according to the corresponding relation between the preset difference values and the display colors; and
And the display determining unit is used for executing display on the working state of the friction plate at the control terminal of the vehicle based on the comparison model of the actual display color and the friction plate.
7. The friction plate operating condition visual monitoring system according to claim 6, wherein the range determining unit includes:
The service life acquisition module is used for acquiring deformation parameters corresponding to the deformation of the friction plate at the respective temperatures of different radial positions under the experimental condition and the corresponding service life; and
And the deformation range determining module is used for determining the size safety deformation extremum of the friction plate according to the deformation parameters under the experimental condition and the service life corresponding to the deformation parameters.
8. The visual monitoring system of claim 7, wherein the deformation range determining module determines the safe deformation extremum of the friction plate size according to the deformation parameter and the corresponding service life under the experimental condition comprises:
The deformation range determining module is used for inducing deformation parameters corresponding to the service life being longer than a preset service life threshold value into a dimension safety deformation extremum of the friction plate at the radius position; wherein the service life threshold is configured to correlate to an average service life of the friction plate under experimental conditions.
9. A machine-readable storage medium having stored thereon instructions for causing a machine to perform the method of visually monitoring the operating condition of a friction plate as claimed in any one of claims 1 to 5.
10. A processor configured to execute a program, wherein the program is configured to, when executed, perform: a method of visually monitoring the operating condition of a friction plate as claimed in any one of claims 1 to 5.
Priority Applications (1)
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