CN113619554B - Friction plate abrasion alarming method and system, vehicle and storage medium - Google Patents
Friction plate abrasion alarming method and system, vehicle and storage medium Download PDFInfo
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- CN113619554B CN113619554B CN202110958754.8A CN202110958754A CN113619554B CN 113619554 B CN113619554 B CN 113619554B CN 202110958754 A CN202110958754 A CN 202110958754A CN 113619554 B CN113619554 B CN 113619554B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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Abstract
The invention belongs to the technical field of automobile braking, and discloses a method and a system for alarming wear of a friction plate, a vehicle and a storage medium. The friction plate wear alarm method comprises the following steps: establishing a relation curve of the thickness of the friction plate and the clamping current, judging whether the current thickness of the friction plate reaches the preset thickness according to the relation curve of the thickness of the friction plate and the clamping current, and prompting to replace the friction plate when the current thickness of the friction plate reaches the preset thickness; meanwhile, a relation between the thickness of the friction plate and the driving style is established, the remaining driving mileage of the friction plate when the thickness of the friction plate reaches a preset thickness is calculated according to the relation between the thickness of the friction plate and the driving style, and the friction plate is prompted to be replaced when the vehicle drives for the remaining driving mileage. The opportunity for replacing the friction plate is completely judged through two different aspects (the included angle circuit and the remaining driving mileage), the friction plate can be timely replaced, and the driving safety is guaranteed to the maximum extent.
Description
Technical Field
The invention relates to the technical field of automobile braking, in particular to a method and a system for alarming abrasion of a friction plate, a vehicle and a storage medium.
Background
Friction plates in a vehicle braking system are consumables, and when the friction plates are worn to a certain thickness, the friction plates need to be replaced with new ones, and the friction plates need to be replaced for multiple times in the whole service life of the vehicle. If the friction plate can not be replaced in time, the braking effect can be reduced, and the driving safety is seriously influenced.
The existing general sensor that can pre-embed at the extreme position of friction disc, sensor connection singlechip, singlechip control alarm circuit send alarm signal when wearing and tearing to the extreme position of friction disc. However, when the sensor fails, the method cannot play a warning function, and certain potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a friction plate wear alarm method, a friction plate wear alarm system, a vehicle and a storage medium, which can ensure that a friction plate can be replaced in time and the driving safety is ensured.
In order to realize the purpose, the following technical scheme is provided:
in a first aspect, a friction plate wear warning method is provided, including: establishing a relation curve of the thickness of the friction plate and the clamping current, judging whether the current thickness of the friction plate reaches the preset thickness according to the relation curve of the thickness of the friction plate and the clamping current, and prompting to replace the friction plate when the current thickness of the friction plate reaches the preset thickness; meanwhile, a relation between the thickness of the friction plate and the driving style is established, the remaining driving mileage when the friction plate reaches the preset thickness is calculated according to the relation between the thickness of the friction plate and the driving style, and the friction plate is prompted to be replaced when the vehicle drives the remaining driving mileage.
Optionally, judging whether the current thickness of the friction plate reaches the preset thickness according to the relation curve of the thickness of the friction plate and the clamping current comprises:
and judging that the current thickness of the friction plate reaches the preset thickness when the rising slope of the clamping current reaches the set slope according to the relation curve of the thickness of the friction plate and the clamping current.
Optionally, establishing the relationship between the thickness of the friction plate and the driving style comprises:
acquiring driving big data, and defining different driving styles according to the driving big data, wherein the driving styles comprise a soft driving style, a balanced driving style and a rough driving style;
and establishing the relationship between the hundred kilometer wear rate of the friction plate and the soft driving style, the balanced driving style and the rough driving style respectively.
Optionally, calculating the remaining driving mileage of the friction plate when the thickness of the friction plate reaches the preset thickness according to the relationship between the thickness of the friction plate and the driving style comprises:
acquiring historical driving data of a current vehicle, and judging the driving style of the current vehicle according to the historical driving data of the current vehicle;
acquiring the accumulated driving mileage of the current vehicle from the time when the friction plate is replaced;
and calculating to obtain the remaining driving mileage when the friction plate reaches the preset thickness according to the accumulated driving mileage of the current vehicle and the hundred-kilometer wear rate of the friction plate corresponding to the judged driving style of the current vehicle.
In a second aspect, a wear alarm system for a friction plate is provided, comprising:
the first calculation module is used for establishing a relation curve of the thickness of the friction plate and the clamping current;
the first judging module is used for judging whether the current thickness of the friction plate reaches the preset thickness or not according to a relation curve of the thickness of the friction plate and the clamping current;
the first alarm module is used for prompting to replace the friction plate when the current thickness of the friction plate reaches a preset thickness;
the second calculation module is used for establishing the relation between the thickness of the friction plate and the driving style;
the third calculation module is used for calculating the remaining driving mileage of the friction plate when the thickness of the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style;
and the second alarm module is used for prompting to replace the friction plate when the vehicle runs for the remaining driving mileage.
Optionally, the first determining module includes a slope determining module, configured to determine, according to a relation curve between the thickness of the friction plate and the clamping current, that the current thickness of the friction plate reaches a preset thickness when a rising slope of the clamping current reaches a set slope.
Optionally, the second computing module comprises:
the driving style defining module is used for acquiring driving big data and defining different driving styles according to the driving big data, wherein the driving styles comprise a soft driving style, a balanced driving style and a rough driving style;
and the wear rate calculation module is used for establishing the relationship between the hundred kilometer wear rate of the friction plate and the mild driving style, the balanced driving style and the rough driving style respectively.
Optionally, the third computing module comprises:
the driving style judging module is used for acquiring historical driving data of the current vehicle and judging the driving style of the current vehicle according to the historical driving data of the current vehicle;
the acquisition module is used for acquiring the accumulated driving mileage of the current vehicle from the time when the friction plate is replaced;
and the residual mileage calculating module is used for calculating and obtaining the residual mileage of the friction plate when the friction plate reaches the preset thickness according to the accumulated mileage of the current vehicle and the hundred kilometer wear rate of the friction plate corresponding to the judged driving style of the current vehicle.
In a third aspect, a vehicle is provided, the vehicle comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, the one or more programs cause the one or more processors to implement the friction plate wear warning method as described above.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which program, when executed by a processor, implements the friction plate wear warning method as described above.
The beneficial effects of the invention are as follows:
in the friction plate wear alarming method, the system, the vehicle and the storage medium, two alarming methods are adopted to predict the wear loss of the friction plate, and the friction plate replacement is prompted as long as one alarming method predicts that the friction plate needs to be replaced. The first alarm method is to judge whether the current thickness of the friction plate reaches a preset thickness based on a relation curve of the thickness of the friction plate and a clamping current. The second warning method is to judge the remaining driving mileage of the vehicle before the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style. That is to say, the opportunity of replacing the friction plate is judged completely through two different aspects (included angle circuit and remaining driving mileage), so that the friction plate can be timely replaced, and the driving safety is ensured to the maximum extent.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a flowchart of a method for alarming wear of a friction plate according to an embodiment of the present invention;
fig. 2 is a flowchart of a first alarm method according to an embodiment of the present invention;
FIG. 3 is a graph showing the variation of clamping current (when the friction plate has a larger thickness) with time according to an embodiment of the present invention;
FIG. 4 is a graph showing the variation of clamping current (when the friction plate thickness is small) with time according to the first embodiment of the present invention;
FIG. 5 is a flowchart of a second alarm method according to an embodiment of the present invention;
fig. 6 is a schematic view of a vehicle according to a third embodiment of the present invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
the embodiment provides a friction plate wear alarming method, two alarming methods are adopted to predict the wear amount of a friction plate, and as long as one alarming method predicts that the friction plate needs to be replaced, the friction plate replacement is prompted, the time for replacing the friction plate is ensured, the friction plate is ensured to be replaced in time, and the driving safety is further ensured. As shown in fig. 1, the method for alarming wear of a friction plate comprises the following steps: establishing a relation curve of the thickness of the friction plate and the clamping current, judging whether the current thickness of the friction plate reaches the preset thickness according to the relation curve of the thickness of the friction plate and the clamping current, and prompting to replace the friction plate when the current thickness of the friction plate reaches the preset thickness; meanwhile, a relation between the thickness of the friction plate and the driving style is established, the remaining driving mileage when the friction plate reaches the preset thickness is calculated according to the relation between the thickness of the friction plate and the driving style, and the friction plate is prompted to be replaced when the vehicle drives the remaining driving mileage.
The first alarm method is to judge whether the current thickness of the friction plate reaches a preset thickness based on a relation curve of the thickness of the friction plate and clamping current. The second warning method is to judge the remaining driving mileage of the vehicle before the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style. That is to say, the opportunity of replacing the friction plate is judged completely through two different aspects (included angle circuit and remaining driving mileage), so that the friction plate can be timely replaced, and the driving safety is ensured to the maximum extent.
Optionally, as shown in fig. 1 and fig. 2, in the first alarm method, determining whether the current thickness of the friction plate reaches a preset thickness according to a relation curve between the thickness of the friction plate and the clamping current includes: and judging that the current thickness of the friction plate reaches the preset thickness when the rising slope of the clamping current reaches the set slope according to the relation curve of the thickness of the friction plate and the clamping current. Under the condition of a certain temperature, the relation curves of the thicknesses of different friction plates and the clamping current of the electronic parking brake system are different. Referring to fig. 3, when the friction plate is worn less, that is, the thickness of the friction plate is larger, the compression ratio of the friction plate is larger, the rigidity is smaller, and the rise of the clamping current is slower, that is, the rising slope of the clamping current is smaller. Referring to fig. 4, when the friction plate is worn more, that is, when the thickness of the friction plate is smaller, the compression ratio of the friction plate is smaller, the rigidity is larger, and the clamping current rises faster, that is, the rising slope of the clamping current is larger. Therefore, whether the current thickness of the friction plate reaches the preset thickness can be judged by judging whether the rising slope of the clamping current reaches the set slope. The set slope can be calibrated according to actual experience. The preset thickness is the thickness of the friction plate when the friction plate needs to be replaced.
Alternatively, as shown in fig. 1 and 5, in the second warning method, establishing the relationship between the thickness of the friction plate and the driving style includes:
acquiring driving big data, and defining different driving styles according to the driving big data, wherein the driving styles comprise a soft driving style, a balanced driving style and a rough driving style;
and establishing the relationship between the hundred kilometer wear rate of the friction plate and the mild driving style, the balanced driving style and the rough driving style respectively.
The driving big data comprises information such as vehicle speed, braking strength and braking frequency. According to the driving big data, the driving behavior of the user can be defined as different driving styles. Illustratively, the driving style includes a gentle driving style, a balanced driving style, and a rough driving style. It can be appreciated that the braking intensity and frequency are increasing from a soft driving style, a balanced driving style to a rough driving style. It can also be understood that under the conditions that the driving range is the same, and the initial thickness and the material of the friction plates are the same, the wear rates of the friction plates corresponding to different driving styles are different, and the wear rates of the friction plates are continuously increased from a mild driving style, a balanced driving style to a rough driving style.
In this embodiment, relationships between the wear rate of the friction plates in one hundred kilometers and the mild driving style, the balanced driving style and the rough driving style are established, that is, under the condition that the initial thickness and the material of the friction plates are the same, the wear loss of the friction plates when the vehicle runs for one hundred kilometers in the mild driving style, the balanced driving style and the rough driving style is determined respectively. Obviously, in other embodiments, the relationship between the wear loss of the friction plate when the vehicle runs for ten kilometers or fifty kilometers and the mild driving style, the balanced driving style and the rough driving style can be established.
After the driving style is determined, the relationships between the hundred kilometer wear rates of the friction plates and the mild driving style, the balanced driving style and the rough driving style can be determined through a bench test and/or a whole vehicle road test.
The relations between the hundred kilometer wear rate of the friction plate and the mild driving style, the balanced driving style and the rough driving style can be stored in a vehicle-mounted controller in advance or stored in a remote terminal.
The relationship between different driving styles and factors such as vehicle speed, brake intensity and brake frequency can also be stored in the vehicle-mounted controller in advance or stored in a remote terminal.
Optionally, calculating the remaining driving mileage of the friction plate when the thickness of the friction plate reaches the preset thickness according to the relationship between the thickness of the friction plate and the driving style comprises:
acquiring historical driving data of a current vehicle, and judging the driving style of the current vehicle according to the historical driving data of the current vehicle;
acquiring the accumulated driving mileage of the current vehicle from the time when the friction plate is replaced;
and calculating to obtain the remaining driving mileage of the friction plate when the friction plate reaches the preset thickness according to the accumulated driving mileage of the current vehicle and the hundred kilometer wear rate of the friction plate corresponding to the judged driving style of the current vehicle.
Historical driving data of a current vehicle is acquired to determine a driving style of the current vehicle. The current driving style of the vehicle means: based on historical travel data of the same driver operating the current vehicle, a driving style corresponding to the driver is acquired.
When the driving style of the current vehicle is confirmed and the initial thickness and the material of the friction plate are known (namely the wear rate of the friction plate needing to be replaced is known), the residual driving mileage of the friction plate reaching the preset thickness can be obtained according to the accumulated driving mileage of the current vehicle from the time when the friction plate is replaced to the current time and the hundred-kilometer wear rate of the friction plate.
In this embodiment, when the vehicle runs for the remaining driving mileage, replacement of the friction plate is prompted. Obviously, in other embodiments, when the set driving mileage of the vehicle is set, the replacement of the friction plate is prompted, and the set driving mileage is smaller than the remaining driving mileage, that is, the friction plate is replaced in advance, so that the driving safety is ensured.
According to the friction plate wear alarm method provided by the embodiment, two alarm methods are adopted to predict the wear loss of the friction plate, and as long as one alarm method predicts that the friction plate needs to be replaced, the replacement of the friction plate is prompted, the time for replacing the friction plate is ensured, and the driving safety is further ensured. The first alarm method is to judge whether the current thickness of the friction plate reaches a preset thickness based on a relation curve of the thickness of the friction plate and a clamping current. The second warning method is to judge the remaining driving mileage of the vehicle before the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style. That is to say, the opportunity of changing the friction disc is judged completely through two different aspects (included angle circuit, remaining mileage), guarantees driving safety furthest.
Example two:
this embodiment provides a friction disc wearing and tearing alarm system, includes:
the first calculation module is used for establishing a relation curve of the thickness of the friction plate and the clamping current;
the first judging module is used for judging whether the current thickness of the friction plate reaches the preset thickness or not according to a relation curve of the thickness of the friction plate and the clamping current;
the first alarm module is used for prompting to replace the friction plate when the current thickness of the friction plate reaches a preset thickness;
the second calculation module is used for establishing the relation between the thickness of the friction plate and the driving style;
the third calculation module is used for calculating the remaining driving mileage of the friction plate when the thickness of the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style;
and the second alarm module is used for prompting to replace the friction plate when the vehicle runs for the remaining running mileage.
The first calculating module, the first judging module and the first alarming module judge whether the current thickness of the friction plate reaches the preset thickness or not based on the relation curve of the thickness of the friction plate and the clamping current. The second calculation module, the third calculation module and the second alarm module are used for judging the remaining driving mileage of the vehicle before the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style. The opportunity of replacing the friction plate is judged through two different aspects (an included angle circuit and the remaining driving mileage), and the driving safety is guaranteed to the maximum extent.
Optionally, the first determining module includes a slope determining module, configured to determine, according to a relation curve between the thickness of the friction plate and the clamping current, that the current thickness of the friction plate reaches a preset thickness when a rising slope of the clamping current reaches a set slope.
Under the condition of a certain temperature, the relation curves of the thicknesses of different friction plates and the clamping current of the electronic parking brake system are different, and the change relations of the corresponding clamping current of the friction plates with different thicknesses along with time are different. Therefore, whether the current thickness of the friction plate reaches the preset thickness can be judged by judging whether the rising slope of the clamping current reaches the set slope. The set slope can be calibrated according to actual experience. The preset thickness is the thickness of the friction plate when the friction plate needs to be replaced.
Optionally, the second calculation module comprises:
the driving style defining module is used for acquiring driving big data and defining different driving styles according to the driving big data, wherein the driving styles comprise a soft driving style, a balanced driving style and a rough driving style;
and the wear rate calculation module is used for establishing the relationship between the hundred-kilometer wear rate of the friction plate and the mild driving style, the balanced driving style and the rough driving style respectively.
The driving big data comprises information such as vehicle speed, braking strength and braking frequency. According to the driving big data, the driving behavior of the user can be defined as different driving styles. From a gentle driving style, a balanced driving style to a rough driving style, the braking strength and the braking frequency are continuously increased, and the wear rate of the friction plate is also continuously increased.
The driving style definition module can be stored in the vehicle-mounted controller in advance or stored in a remote terminal. Similarly, the wear rate calculation module may be pre-stored in the onboard controller or stored in a remote terminal.
Optionally, the third computing module comprises:
the driving style judging module is used for acquiring historical driving data of the current vehicle and judging the driving style of the current vehicle according to the historical driving data of the current vehicle;
the acquisition module is used for acquiring the accumulated driving mileage of the current vehicle from the time when the friction plate is replaced;
and the residual mileage calculation module is used for calculating and obtaining the residual mileage when the friction plate reaches the preset thickness according to the accumulated driving mileage of the current vehicle and the hundred kilometer wear rate of the friction plate corresponding to the judged driving style of the current vehicle.
When the driving style of the current vehicle is confirmed and the initial thickness and the material of the friction plate are known (namely the wear rate of the friction plate needing to be replaced is known), the residual driving mileage of the friction plate reaching the preset thickness can be obtained according to the accumulated driving mileage of the current vehicle from the time of replacing the friction plate to the current time and the hundred kilometer wear rate of the friction plate.
The friction plate wear alarm system provided by the embodiment can execute the friction plate wear alarm method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example three:
fig. 6 is a schematic structural view of the vehicle in the present embodiment. FIG. 6 illustrates a block diagram of an exemplary vehicle 412 suitable for use in implementing embodiments of the present invention. The vehicle 412 shown in fig. 6 is merely an example, and should not impose any limitations on the functionality or scope of use of embodiments of the present invention.
As shown in fig. 6, the vehicle 412 is represented in the form of a general-purpose terminal. The components of the vehicle 412 may include, but are not limited to: a vehicle body (not shown), one or more processors 416, a memory device 428, and a bus 418 that connects the various system components, including the memory device 428 and the processors 416.
The vehicle 412 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by vehicle 412 and includes both volatile and nonvolatile media, removable and non-removable media.
A program/utility 440 having a set (at least one) of program modules 442 may be stored, for instance, in storage 428, such program modules 442 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. The program modules 442 generally perform the functions and/or methodologies of the described embodiments of the invention.
The vehicle 412 may also communicate with one or more external devices 414 (e.g., keyboard, pointing terminal, display 424, etc.), with one or more terminals that enable a user to interact with the vehicle 412, and/or with any terminals (e.g., network card, modem, etc.) that enable the vehicle 412 to communicate with one or more other computing terminals. Such communication may occur via input/output (I/O) interfaces 422. Also, the vehicle 412 may communicate with one or more networks (e.g., a Local Area Network (LAN), wide Area Network (WAN), and/or a public Network, such as the internet) via the Network adapter 420. As shown in FIG. 6, the network adapter 420 communicates with the other modules of the vehicle 412 over the bus 418. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the vehicle 412, including but not limited to: microcode, end drives, redundant processors, external disk drive Arrays, RAID (Redundant Arrays of Independent Disks) systems, tape drives, and data backup storage systems, among others.
The processor 416 executes programs stored in the storage device 428 to perform various functional applications and data processing, for example, implement a friction plate wear warning method provided by the embodiment of the present invention, the method includes:
establishing a relation curve of the thickness of the friction plate and the clamping current, judging whether the current thickness of the friction plate reaches the preset thickness according to the relation curve of the thickness of the friction plate and the clamping current, and prompting to replace the friction plate when the current thickness of the friction plate reaches the preset thickness; meanwhile, a relation between the thickness of the friction plate and the driving style is established, the remaining driving mileage when the friction plate reaches the preset thickness is calculated according to the relation between the thickness of the friction plate and the driving style, and the friction plate is prompted to be replaced when the vehicle drives the remaining driving mileage.
Example four
The embodiment provides a computer-readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements a friction plate wear alarm method according to an embodiment of the present invention, where the method includes:
establishing a relation curve of the thickness of the friction plate and the clamping current, judging whether the current thickness of the friction plate reaches the preset thickness according to the relation curve of the thickness of the friction plate and the clamping current, and prompting to replace the friction plate when the current thickness of the friction plate reaches the preset thickness; meanwhile, a relation between the thickness of the friction plate and the driving style is established, the remaining driving mileage when the friction plate reaches the preset thickness is calculated according to the relation between the thickness of the friction plate and the driving style, and the friction plate is prompted to be replaced when the vehicle drives the remaining driving mileage.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or terminal. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (6)
1. A friction plate wear alarm method is characterized by comprising the following steps: establishing a relation curve of the thickness of the friction plate and the clamping current, judging whether the current thickness of the friction plate reaches the preset thickness according to the relation curve of the thickness of the friction plate and the clamping current, and prompting to replace the friction plate when the current thickness of the friction plate reaches the preset thickness; meanwhile, establishing a relation between the thickness of the friction plate and the driving style, calculating the remaining driving mileage when the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style, and prompting to replace the friction plate when the vehicle drives the remaining driving mileage;
establishing the relation between the thickness of the friction plate and the driving style comprises the following steps:
acquiring driving big data, and defining different driving styles according to the driving big data, wherein the driving styles comprise a soft driving style, a balanced driving style and a rough driving style;
establishing relations between the hundred kilometer wear rate of the friction plate and a soft driving style, a balanced driving style and a rough driving style respectively;
calculating the remaining driving mileage of the friction plate when the thickness of the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style comprises the following steps:
acquiring historical driving data of a current vehicle, and judging the driving style of the current vehicle according to the historical driving data of the current vehicle;
acquiring the accumulated driving mileage of the current vehicle from the time when the friction plate is replaced;
and calculating to obtain the remaining driving mileage when the friction plate reaches the preset thickness according to the accumulated driving mileage of the current vehicle and the hundred-kilometer wear rate of the friction plate corresponding to the judged driving style of the current vehicle.
2. The method of claim 1, wherein determining whether the current thickness of the friction plate reaches a predetermined thickness according to the relationship between the thickness of the friction plate and the clamping current comprises:
and judging that the current thickness of the friction plate reaches the preset thickness when the rising slope of the clamping current reaches the set slope according to the relation curve of the thickness of the friction plate and the clamping current.
3. A friction plate wear alarm system, comprising:
the first calculation module is used for establishing a relation curve of the thickness of the friction plate and the clamping current;
the first judging module is used for judging whether the current thickness of the friction plate reaches the preset thickness or not according to a relation curve of the thickness of the friction plate and the clamping current;
the first alarm module is used for prompting to replace the friction plate when the current thickness of the friction plate reaches a preset thickness;
the second calculation module is used for establishing the relation between the thickness of the friction plate and the driving style;
the third calculation module is used for calculating the remaining driving mileage of the friction plate when the thickness of the friction plate reaches the preset thickness according to the relation between the thickness of the friction plate and the driving style;
the second alarm module is used for prompting to replace the friction plate when the vehicle runs for the remaining driving mileage;
the second calculation module includes:
the driving style defining module is used for acquiring driving big data and defining different driving styles according to the driving big data, wherein the driving styles comprise a soft driving style, a balanced driving style and a rough driving style;
the wear rate calculation module is used for establishing the relationship between the hundred-kilometer wear rate of the friction plate and the mild driving style, the balanced driving style and the rough driving style respectively;
the third calculation module includes:
the driving style judging module is used for acquiring historical driving data of the current vehicle and judging the driving style of the current vehicle according to the historical driving data of the current vehicle;
the acquisition module is used for acquiring the accumulated driving mileage of the current vehicle from the time when the friction plate is replaced;
and the residual mileage calculation module is used for calculating and obtaining the residual mileage when the friction plate reaches the preset thickness according to the accumulated driving mileage of the current vehicle and the hundred kilometer wear rate of the friction plate corresponding to the judged driving style of the current vehicle.
4. A friction plate wear alarm system according to claim 3, wherein the first determining module includes a slope determining module configured to determine, according to a relationship curve between the thickness of the friction plate and the clamping current, that the current thickness of the friction plate reaches a predetermined thickness when a rising slope of the clamping current reaches a predetermined slope.
5. A vehicle, characterized in that the vehicle comprises:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the friction plate wear warning method of claim 1 or 2.
6. A computer-readable storage medium on which a computer program is stored, wherein the program, when executed by a processor, implements a friction plate wear warning method as claimed in claim 1 or 2.
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| CN114673745B (en) * | 2022-03-30 | 2023-10-27 | 中汽创智科技有限公司 | Digital twinning-based friction plate management method, system, vehicle and medium |
| CN115076269A (en) * | 2022-06-28 | 2022-09-20 | 中国第一汽车股份有限公司 | Friction plate abrasion alarm control method and system, vehicle and storage medium |
| CN116373834B (en) * | 2023-05-30 | 2023-08-04 | 中国第一汽车股份有限公司 | Brake block abrasion detection method and device, electronic equipment and medium |
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