CN116296472A - Tire grinding energy consumption evaluation method, device, terminal and storage medium - Google Patents

Tire grinding energy consumption evaluation method, device, terminal and storage medium Download PDF

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CN116296472A
CN116296472A CN202310064394.6A CN202310064394A CN116296472A CN 116296472 A CN116296472 A CN 116296472A CN 202310064394 A CN202310064394 A CN 202310064394A CN 116296472 A CN116296472 A CN 116296472A
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test
mileage
tire
circumference
abrasion
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刘志潘
谢浩森
高尚
费二威
高磊
吕满意
胡安辉
高辉
陈阳
张春雷
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FAW Group Corp
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FAW Group Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56—Investigating resistance to wear or abrasion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0005—Repeated or cyclic
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0274—Tubular or ring-shaped specimens
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation

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  • Tires In General (AREA)

Abstract

The invention discloses a method, a device, a terminal and a storage medium for evaluating the abrasion energy consumption of a tire, belonging to the technical field of testing the abrasion of the tire, comprising the following steps: when tire abrasion energy consumption evaluation request data are received, acquiring the tire abrasion energy consumption evaluation request data, and performing a circle-fixing abrasion test according to test requirements to respectively obtain running test mileage data on the circumference of 30m and 50 m; respectively obtaining average values of the driving mileage on the circumferences of 30m and 50m and standard deviation values of the driving mileage on the circumferences of 30m and 50m according to the driving mileage data on the circumferences of 30m and 50 m; and evaluating the tire abrasion energy consumption according to the average value of the running test mileage on the circumferences of 30m and 50m and the standard deviation value of the running test mileage on the circumferences of 30m and 50 m. According to the invention, the whole vehicle is carried on a round square of a whole vehicle test field to carry out abrasion test on an actual road surface, and a test sample vehicle, a tire sample piece and the test road surface are adopted to carry out test, so that the test result is kept consistent with the actual situation to the greatest extent, and the validity of the test result is ensured.

Description

Tire grinding energy consumption evaluation method, device, terminal and storage medium
Technical Field
The invention discloses a method, a device, a terminal and a storage medium for evaluating abrasion energy consumption of a tire, and belongs to the technical field of tire abrasion testing.
Background
Vehicles traveling on modern highways are subject to primary control and disturbance forces, except for aerodynamic forces, all from the contact area of the tires with the ground. So there are the following expressions: the term "critical control forces determining how a vehicle turns, brakes and accelerates are generated in four contact areas not larger than the size of the palm of the hand" is sufficient to indicate the importance of the tire. With the increase of domestic automobile report amount, users pay more attention to the abrasion performance of tires, and the use cost of the users during after-sale replacement is affected.
In the process of developing tires in a main machine factory, a bench adopts an acle tester to detect the abrasion performance of tread rubber, and the method cannot correspond to a real vehicle, firstly, only tread rubber is adopted, a test object is inconsistent with the tires, and secondly, the difference between a road surface and an actual road surface is larger; the whole vehicle adopts a special abrasion test, the abrasion test is carried out according to a fixed abrasion route, then data processing is carried out according to the test result, the abrasion capability of the tire is evaluated, the whole vehicle test is carried out after the development of the tire is completed, firstly, if the abrasion performance does not meet the requirement, the abrasion performance optimization is required, the NVH, dynamics and braking performance matching adjustment is required to be carried out on the tire again, the project node of the whole vehicle is seriously affected, and secondly, the test period is long and the test cost is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method, a device, a terminal and a storage medium for evaluating the abrasion energy consumption of a tire, which solve the problems of inconsistent test objects and larger difference between a road surface and an actual road surface in the bench test of the abrasion performance of the existing tire; the special abrasion test of the whole vehicle has the problems of development node risk, long test period and high cost caused by the fact that the abrasion performance does not reach the standard.
The technical scheme of the invention is as follows:
according to a first aspect of an embodiment of the present invention, there is provided a tire wear resistance evaluation method including:
when tire abrasion energy consumption evaluation request data are received, acquiring the tire abrasion energy consumption evaluation request data, and performing a circle-fixing abrasion test according to test requirements to respectively obtain running test mileage data on the circumference of 30m and 50 m;
respectively obtaining average values of the driving mileage on the circumferences of 30m and 50m and standard deviation values of the driving mileage on the circumferences of 30m and 50m according to the driving mileage data on the circumferences of 30m and 50 m;
and evaluating the tire abrasion energy consumption according to the average value of the running test mileage on the circumferences of 30m and 50m and the standard deviation value of the running test mileage on the circumferences of 30m and 50 m.
Preferably, the test requirements include:
the test requirements include: the temperature is lower than 7 ℃, and the test is stopped when the road surface frosts or has snow and the thickness of the air-induced road surface water film is more than or equal to 5mm or the visibility of the fog is less than or equal to 100m in rainy days;
a vehicle load, comprising: balancing the balance weight of each seat area of the test vehicle according to the design load;
vehicle condition confirmation, comprising: the vehicle is prepared according to the requirement, the four-wheel positioning parameters and the tire pressure are adjusted to the design values, and the wheel assembly is in dynamic balance;
a travel route comprising: on a field of a round square of a test field, drawing circumferences with the radius of 30m and 50m respectively by using white paint;
the traveling vehicle speed includes: the vehicle is operated to drive along the circumference of the drawn radius of 30m, and the vehicle speed is adjusted to lead the lateral acceleration of the whole vehicle to reach (4.5+/-0.2) m/s 2 And the vehicle speed at this time is recorded, and the corresponding vehicle speed at the time of the test on the circumference of the radius 50m is determined in the same manner.
Preferably, the rounding abrasion test comprises:
30m circumference circle abrasion test:
the lateral acceleration of the whole vehicle is kept to reach (4.5 plus or minus 0.2) m/s 2 Is driven around a fixed circle;
when the tire wears to the tire pattern wear mark, the test is stopped and the lateral acceleration of the whole vehicle is recorded to reach (4.5+/-0.2) m/s 2 A first test mileage up to the time of test stop;
changing a new tire sample, repeating the two steps 5 times, and recording a second test mileage, a third test mileage, a fourth test mileage, a fifth test mileage and a sixth test mileage respectively;
and the 50m circumference circle-fixing abrasion test and the 30m circumference circle-fixing abrasion test are the same in steps to obtain a seventh test mileage, an eighth test mileage, a ninth test mileage, a tenth test mileage, an eleventh test mileage and a twelfth test mileage respectively.
Preferably, the obtaining the average values of the driving mileage on the circumference of 30m and 50m according to the driving mileage data on the circumference of 30m and 50m respectively includes:
the 30m and 50m circumference driving mileage data respectively obtain a 30m circumference driving mileage average value and a 50m circumference driving mileage average value through formulas (1) and (2):
Figure BDA0004062043930000031
Figure BDA0004062043930000032
wherein: s is S 30avg Is the average value of the driving mileage on the circumference of 30m, S 50avg Is the average value of the driving mileage on the circumference of 50m, S 1 -S 6 The first test mileage, the second test mileage, the third test mileage, the fourth test mileage, the fifth test mileage and the sixth test mileage are respectively, S 7 -S 12 A seventh test mileage, an eighth test mileage, a ninth test mileage, a tenth test mileage, an eleventh test mileage, and a twelfth test mileage, respectively.
Preferably, the obtaining the standard deviation values of the driving mileage on the circumference of 30m and 50m according to the driving mileage on the circumference of 30m and 50m respectively includes:
and (3) and (4) obtaining the standard deviation values of the driving mileage on the circumference of 30m and 50m respectively from the driving mileage data on the circumference of 30m and 50 m:
Figure BDA0004062043930000033
Figure BDA0004062043930000041
wherein: s is S 30log Is the standard deviation value of the driving test mileage on the circumference of 30m, S 50log Is a standard deviation value of the driving test mileage on the circumference of 50 m.
Preferably, the evaluating the tire abrasion capability according to the average value of the running mileage on the circumference of 30m and 50m and the standard deviation value of the running mileage on the circumference of 30m and 50m comprises the following steps:
the average value of the running test mileage on the circumference of 30m and 50m and the standard deviation value of the running test mileage on the circumference of 30m and 50m are used for determining the comprehensive evaluation score of the abrasion performance of the tire through a formula (5):
M＝a×S 30avg +b×S 50avg +c×S 30log +d×S 50log (5)
wherein: a and b are the influence factors of the average value of the test mileage on the circumferences of 30M and 50M respectively, c and d are the influence factors of the standard deviation value of the test mileage on the circumferences of 30M and 50M respectively, and M is the comprehensive evaluation score of the wear performance of the tire;
judging whether the abrasion performance of the tire meets an internal control standard threshold value according to the comprehensive evaluation score of the abrasion performance of the tire, thereby obtaining an abrasion energy consumption evaluation result of the tire.
According to a second aspect of the embodiment of the present invention, there is provided a tire wear resistance evaluation device including:
the acquisition module is used for acquiring the round-fixing abrasion test according to the test requirement in the tire abrasion capacity evaluation request data to respectively obtain the running test mileage data on the circumference of 30m and 50m when the tire abrasion capacity evaluation request data is received;
the calculation module is used for respectively obtaining an average value of the driving mileage on the circumference of 30m and 50m and a standard deviation value of the driving mileage on the circumference of 30m and 50m according to the driving mileage data on the circumference of 30m and 50 m;
and the evaluation module is used for evaluating the tire abrasion capacity according to the average value of the running test mileage on the circumferences of 30m and 50m and the standard deviation value of the running test mileage on the circumferences of 30m and 50 m.
Preferably, the evaluation module is further configured to:
the average value of the running test mileage on the circumference of 30m and 50m and the standard deviation value of the running test mileage on the circumference of 30m and 50m are used for determining the comprehensive evaluation score of the abrasion performance of the tire through a formula (5):
M＝a×S 30avg +b×S 50avg +c×S 30log +d×S 50log (5)
wherein: a and b are the influence factors of the average value of the test mileage on the circumferences of 30M and 50M respectively, c and d are the influence factors of the standard deviation value of the test mileage on the circumferences of 30M and 50M respectively, and M is the comprehensive evaluation score of the wear performance of the tire;
judging whether the abrasion performance of the tire meets an internal control standard threshold value according to the comprehensive evaluation score of the abrasion performance of the tire, thereby obtaining an abrasion energy consumption evaluation result of the tire.
According to a third aspect of an embodiment of the present invention, there is provided a terminal including:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
the method according to the first aspect of the embodiment of the invention is performed.
According to a fourth aspect of embodiments of the present invention, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a terminal, enables the terminal to perform the method according to the first aspect of embodiments of the present invention.
According to a fifth aspect of embodiments of the present invention, there is provided an application program product for causing a terminal to carry out the method according to the first aspect of embodiments of the present invention when the application program product is run at the terminal.
The invention has the beneficial effects that:
the invention provides a method, a device, a terminal and a storage medium for evaluating the abrasion capability of a tire, wherein the abrasion test of an actual road surface is carried on a round square of a whole vehicle test field, firstly, a test sample vehicle, a tire sample piece and the test road surface are adopted for testing, the test sample vehicle, the tire sample piece and the test road surface are kept consistent with the actual situation to the greatest extent, and the validity of a test result is ensured; and secondly, the test can be performed in the initial stage of the project, so that the abrasion performance of the tire can be ensured to meet the whole vehicle requirement in advance, the project development period risk caused by the fact that the abrasion performance of the tire does not reach the standard after the whole vehicle is worn is reduced, and the test period and the test cost are greatly reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
FIG. 1 is a flow chart illustrating a method of evaluating tire wear resistance according to an exemplary embodiment;
FIG. 2 is a schematic block diagram illustrating a tire wear resistance evaluation apparatus according to an exemplary embodiment;
fig. 3 is a schematic block diagram of a terminal structure according to an exemplary embodiment.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the invention provides a tire grinding energy consumption evaluation method, which is realized by a terminal, wherein the terminal can be a smart phone, a desktop computer or a notebook computer and the like, and at least comprises a CPU and the like.
Example 1
Fig. 1 is a flowchart illustrating a tire wear resistance evaluation method for use in a terminal according to an exemplary embodiment, the method comprising the steps of:
step 101, when tire abrasion energy consumption evaluation request data are received, a circle-fixing abrasion test is carried out according to test requirements in the tire abrasion energy consumption evaluation request data to obtain 30m and 50m circumference driving test mileage data respectively, wherein the specific contents are as follows:
wherein the test requirements include:
1. weather requirements
The temperature is lower than 7 ℃, the road surface frosts or snow is accumulated, and the test is stopped when the thickness of the air-induced road surface water film is more than or equal to 5mm or the visibility of the fog is less than or equal to 100m in rainy days.
2. Vehicle load
The seat areas of the test vehicle should be balanced and balanced according to the design load, so that the left and right wheel loads of the driver are ensured to be equivalent as much as possible when the driver is on the vehicle.
3. Vehicle condition confirmation
The vehicle is prepared according to the requirement, the four-wheel positioning parameters and the tire pressure are adjusted to the design values, and the wheel assembly is required to be balanced dynamically. And installing data acquisition and recording equipment for the tire road abrasion test.
3. Travel route
On the field of the test field round square, circumferences with radii of 30m and 50m are drawn with white paint, respectively.
4. Speed of travel
The vehicle is operated to drive along the circumference of the drawn radius of 30m, and the vehicle speed is adjusted to lead the lateral acceleration of the whole vehicle to reach (4.5+/-0.2) m/s 2 And the vehicle speed at this time is recorded, and the corresponding vehicle speed at the time of the test on the circumference of the radius 50m is determined in the same manner.
Wherein, the round abrasion test includes:
30m circumference fixed circle abrasion test
The abrasion test was performed on the circumference of the radius of 30m, and the round-robin travel was performed while maintaining the vehicle speed determined by the above test method. When the tyre wears to the wheelWhen the tire pattern abrasion mark is formed, the test is stopped, and in the process, the lateral acceleration of the whole vehicle needs to be recorded to reach (4.5+/-0.2) m/s 2 First test mileage S to test stop 1 . Changing new tire sample, repeating the test for five times, and recording that the lateral acceleration of the whole vehicle reaches (4.5+/-0.2) m/s 2 Second test mileage S to test stop 2 Third test mileage S 3 Fourth test mileage S 4 Fifth test mileage S 5 And a sixth test mileage S 6 。
50m circumference circle abrasion test
According to the test method performed on the circumference with the radius of 30m, six circle-wound abrasion tests are repeatedly performed on the circumference with the radius of 50m, and the lateral acceleration of the whole vehicle is recorded to reach (4.5+/-0.2) m/s 2 Test mileage seventh test mileage S at the time 7 Eighth test mileage S 8 Ninth test mileage S 9 Tenth test mileage S 10 And eleventh test mileage S 11 And twelfth test mileage S 12 。
When the tire abrasion energy consumption evaluation request data is received, the circle-fixing abrasion test is carried out according to the test requirement in the tire abrasion energy consumption evaluation request data to obtain the test mileage data on the circumferences of 30m and 50m respectively, and the test mileage data on the circumferences of 30m and 50m respectively comprise the following steps: first test mileage S 1 Second test mileage S 2 Third test mileage S 3 Fourth test mileage S 4 Fifth test mileage S 5 Sixth test mileage S 6 Seventh test mileage S 7 Eighth test mileage S 8 Ninth test mileage S 9 Tenth test mileage S 10 And eleventh test mileage S 11 And twelfth test mileage S 12 。
Step 102, obtaining an average value of the driving mileage on the circumference of 30m and 50m and a standard deviation value of the driving mileage on the circumference of 30m and 50m according to the driving mileage data on the circumference of 30m and 50m, wherein the specific contents are as follows:
the average value of the running mileage on the circumference of 30m and the average value of the running mileage on the circumference of 50m are respectively obtained by the running mileage data on the circumference of 30m and the running mileage data on the circumference of 50m through formulas (1) and (2):
Figure BDA0004062043930000091
Figure BDA0004062043930000092
wherein: s is S 30avg Is the average value of the driving mileage on the circumference of 30m, S 50avg Is the average value of the driving mileage on the circumference of 50 m.
The data of the driving mileage on the circumference of 30m and 50m are obtained through the steps (3) and (4), and the standard deviation values of the driving mileage on the circumference of 30m and 50m are obtained respectively:
Figure BDA0004062043930000093
Figure BDA0004062043930000094
wherein: s is S 30log Is the standard deviation value of the driving test mileage on the circumference of 30m, S 50log Is a standard deviation value of the driving test mileage on the circumference of 50 m.
And 103, evaluating the tire abrasion capacity according to the average value of the running test mileage on the circumferences of 30m and 50m and the standard deviation value of the running test mileage on the circumferences of 30m and 50m, wherein the specific contents are as follows:
the average value of the running test mileage on the circumference of 30m and 50m and the standard deviation value of the running test mileage on the circumference of 30m and 50m are used for determining the comprehensive evaluation score of the abrasion performance of the tire through a formula (5):
M＝a×S 30avg +b×S 50avg +c×S 30log +d×S 50log (5)
wherein: a and b are the influence factors of the average value of the test mileage on the circumferences of 30M and 50M respectively, c and d are the influence factors of the standard deviation value of the test mileage on the circumferences of 30M and 50M respectively, and M is the comprehensive evaluation score of the wear performance of the tire;
judging whether the abrasion performance of the tire meets an internal control standard threshold value according to the comprehensive evaluation score of the abrasion performance of the tire, thereby obtaining an abrasion energy consumption evaluation result of the tire.
Taking a certain item of tire abrasion test as an example, the comprehensive evaluation score of the tire abrasion performance is 13.928 in the following table 1, and the tire abrasion performance is qualified when the tire abrasion performance meets an internal control standard threshold value (not lower than 13.5).
Table 1 tire wear test data sheet
Figure BDA0004062043930000101
s the invention carries the whole vehicle to carry out the abrasion test of the actual road surface in the round square of the whole vehicle test field, firstly adopts the test sample vehicle, the tire sample piece and the test road surface to carry out the test, keeps the same with the actual situation to the greatest extent, and ensures the validity of the test result; and secondly, the test can be performed in the initial stage of the project, so that the abrasion performance of the tire can be ensured to meet the whole vehicle requirement in advance, the project development period risk caused by the fact that the abrasion performance of the tire does not reach the standard after the whole vehicle is worn is reduced, and the test period and the test cost are greatly reduced.
Example two
In an exemplary embodiment, there is also provided a tire wear resistance evaluation device, characterized by comprising:
the acquiring module 210 is configured to acquire, when the tire abrasion capability evaluation request data is received, round-fixing abrasion tests according to test requirements in the tire abrasion capability evaluation request data, so as to obtain running test mileage data on a circumference of 30m and a circumference of 50m respectively;
the calculation module 220 is configured to obtain an average value of the driving mileage on the circumference of 30m and 50m and a standard deviation value of the driving mileage on the circumference of 30m and 50m according to the driving mileage data on the circumference of 30m and 50m, respectively;
and the evaluation module 230 is used for evaluating the tire abrasion capability according to the average value of the running test mileage on the circumferences of 30m and 50m and the standard deviation value of the running test mileage on the circumferences of 30m and 50 m.
Preferably, the evaluation module 230 is further configured to:
the average value of the running test mileage on the circumference of 30m and 50m and the standard deviation value of the running test mileage on the circumference of 30m and 50m are used for determining the comprehensive evaluation score of the abrasion performance of the tire through a formula (5):
M＝a×S 30avg +b×S 50avg +c×S 30log +d×S 50log (5)
wherein: a and b are the influence factors of the average value of the test mileage on the circumferences of 30M and 50M respectively, c and d are the influence factors of the standard deviation value of the test mileage on the circumferences of 30M and 50M respectively, and M is the comprehensive evaluation score of the wear performance of the tire;
judging whether the abrasion performance of the tire meets an internal control standard threshold value according to the comprehensive evaluation score of the abrasion performance of the tire, thereby obtaining an abrasion energy consumption evaluation result of the tire.
According to the invention, the abrasion test of an actual road surface is carried on a round square of a whole vehicle test field, firstly, a test sample vehicle, a tire sample piece and the test road surface are adopted for testing, the test sample vehicle, the tire sample piece and the test road surface are kept consistent with the actual situation to the greatest extent, and the validity of a test result is ensured; and secondly, the test can be performed in the initial stage of the project, so that the abrasion performance of the tire can be ensured to meet the whole vehicle requirement in advance, the project development period risk caused by the fact that the abrasion performance of the tire does not reach the standard after the whole vehicle is worn is reduced, and the test period and the test cost are greatly reduced.
Example III
Fig. 3 is a block diagram of a terminal provided in an embodiment of the present application, where the terminal may be a terminal in the foregoing embodiment. The terminal 300 may be a portable mobile terminal such as: smart phone, tablet computer. The terminal 300 may also be referred to by other names of user equipment, portable terminals, etc.
In general, the terminal 300 includes: a processor 301 and a memory 302.
Processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 301 may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array ). The processor 301 may also include a main processor, which is a processor for processing data in an awake state, also called a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 301 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 301 may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.
Memory 302 may include one or more computer-readable storage media, which may be tangible and non-transitory. Memory 302 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 302 is used to store at least one instruction for execution by processor 301 to implement a tire wear ability evaluation method provided herein.
In some embodiments, the terminal 300 may further optionally include: a peripheral interface 303, and at least one peripheral. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, touch screen 305, camera 306, audio circuitry 307, positioning component 308, and power supply 309.
The peripheral interface 303 may be used to connect at least one Input/Output (I/O) related peripheral to the processor 301 and the memory 302. In some embodiments, processor 301, memory 302, and peripheral interface 303 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 301, the memory 302, and the peripheral interface 303 may be implemented on separate chips or circuit boards, which is not limited in this embodiment.
The Radio Frequency circuit 304 is configured to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuitry 304 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 304 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the world wide web, metropolitan area networks, intranets, generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity ) networks. In some embodiments, the radio frequency circuitry 304 may also include NFC (Near Field Communication ) related circuitry, which is not limited in this application.
The touch display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. The touch screen 305 also has the ability to collect touch signals at or above the surface of the touch screen 305. The touch signal may be input as a control signal to the processor 301 for processing. The touch screen 305 is used to provide virtual buttons and/or virtual keyboards, also known as soft buttons and/or soft keyboards. In some embodiments, the touch display 305 may be one, providing a front panel of the terminal 300; in other embodiments, the touch display 305 may be at least two, respectively disposed on different surfaces of the terminal 300 or in a folded design; in still other embodiments, the touch display 305 may be a flexible display disposed on a curved surface or a folded surface of the terminal 300. Even more, the touch display screen 305 may be arranged in an irregular pattern that is not rectangular, i.e., a shaped screen. The touch display 305 may be made of LCD (Liquid Crystal Display ), OLED (Organic Light-Emitting Diode) or other materials.
The camera assembly 306 is used to capture images or video. Optionally, the camera assembly 306 includes a front camera and a rear camera. In general, a front camera is used for realizing video call or self-photographing, and a rear camera is used for realizing photographing of pictures or videos. In some embodiments, the number of the rear cameras is at least two, and the rear cameras are any one of a main camera, a depth camera and a wide-angle camera, so as to realize fusion of the main camera and the depth camera to realize a background blurring function, and fusion of the main camera and the wide-angle camera to realize a panoramic shooting function and a Virtual Reality (VR) shooting function. In some embodiments, camera assembly 306 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
Audio circuitry 307 is used to provide an audio interface between the user and terminal 300. The audio circuit 307 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and environments, converting the sound waves into electric signals, and inputting the electric signals to the processor 301 for processing, or inputting the electric signals to the radio frequency circuit 304 for voice communication. For the purpose of stereo acquisition or noise reduction, a plurality of microphones may be respectively disposed at different portions of the terminal 300. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 301 or the radio frequency circuit 304 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit 307 may also include a headphone jack.
The location component 308 is used to locate the current geographic location of the terminal 300 to enable navigation or LBS (Location Based Service, location-based services). The positioning component 308 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, or the Galileo system of Russia.
The power supply 309 is used to power the various components in the terminal 300. The power source 309 may be alternating current, direct current, disposable or rechargeable. When the power source 309 comprises a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the terminal 300 further includes one or more sensors 310. The one or more sensors 310 include, but are not limited to: acceleration sensor 311, gyroscope sensor 312, pressure sensor 313, fingerprint sensor 314, optical sensor 315, and proximity sensor 316.
The acceleration sensor 311 can detect the magnitudes of accelerations on three coordinate axes of the coordinate system established with the terminal 300. For example, the acceleration sensor 311 may be used to detect components of gravitational acceleration on three coordinate axes. The processor 301 may control the touch display screen 305 to display a user interface in a landscape view or a portrait view according to the gravitational acceleration signal acquired by the acceleration sensor 311. The acceleration sensor 311 may also be used for the acquisition of motion data of a game or a user.
The gyro sensor 312 may detect a body direction and a rotation angle of the terminal 300, and the gyro sensor 312 may collect 3D (three-dimensional) motion of the user to the terminal 300 in cooperation with the acceleration sensor 311. The processor 301 may implement the following functions according to the data collected by the gyro sensor 312: motion sensing (e.g., changing UI according to a tilting operation by a user), image stabilization at shooting, game control, and inertial navigation.
The pressure sensor 313 may be disposed at a side frame of the terminal 300 and/or at a lower layer of the touch screen 305. When the pressure sensor 313 is provided at the side frame of the terminal 300, a grip signal of the terminal 300 by a user may be detected, and left-right hand recognition or shortcut operation may be performed according to the grip signal. When the pressure sensor 313 is disposed at the lower layer of the touch screen 305, control of the operability control on the UI interface can be achieved according to the pressure operation of the user on the touch screen 305. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.
The fingerprint sensor 314 is used to collect a fingerprint of a user to identify the identity of the user based on the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the user is authorized by the processor 301 to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. The fingerprint sensor 314 may be provided on the front, back or side of the terminal 300. When a physical key or a manufacturer Logo is provided on the terminal 300, the fingerprint sensor 314 may be integrated with the physical key or the manufacturer Logo.
The optical sensor 315 is used to collect the ambient light intensity. In one embodiment, processor 301 may control the display brightness of touch screen 305 based on the intensity of ambient light collected by optical sensor 315. Specifically, when the intensity of the ambient light is high, the display brightness of the touch display screen 305 is turned up; when the ambient light intensity is low, the display brightness of the touch display screen 305 is turned down. In another embodiment, the processor 301 may also dynamically adjust the shooting parameters of the camera assembly 306 according to the ambient light intensity collected by the optical sensor 315.
A proximity sensor 316, also referred to as a distance sensor, is typically disposed on the front face of the terminal 300. The proximity sensor 316 is used to collect the distance between the user and the front of the terminal 300. In one embodiment, when the proximity sensor 316 detects a gradual decrease in the distance between the user and the front face of the terminal 300, the processor 301 controls the touch screen 305 to switch from the on-screen state to the off-screen state; when the proximity sensor 316 detects that the distance between the user and the front surface of the terminal 300 gradually increases, the processor 301 controls the touch display screen 305 to switch from the off-screen state to the on-screen state.
Those skilled in the art will appreciate that the structure shown in fig. 3 is not limiting and that more or fewer components than shown may be included or certain components may be combined or a different arrangement of components may be employed.
Example IV
In an exemplary embodiment, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a tire wear ability evaluation method as provided by all inventive embodiments of the present application.
Any combination of one or more computer readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any 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 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.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. 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 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 server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Example five
In an exemplary embodiment, an application program product is also provided that includes one or more instructions that are executable by the processor 301 of the above apparatus to perform a tire wear ability evaluation method as described above.
Although embodiments of the invention have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (10)

1. A tire wear resistance evaluation method, comprising:
when tire abrasion energy consumption evaluation request data are received, acquiring the tire abrasion energy consumption evaluation request data, and performing a circle-fixing abrasion test according to test requirements to respectively obtain running test mileage data on the circumference of 30m and 50 m;
respectively obtaining average values of the driving mileage on the circumferences of 30m and 50m and standard deviation values of the driving mileage on the circumferences of 30m and 50m according to the driving mileage data on the circumferences of 30m and 50 m;
and evaluating the tire abrasion energy consumption according to the average value of the running test mileage on the circumferences of 30m and 50m and the standard deviation value of the running test mileage on the circumferences of 30m and 50 m.
2. A method of evaluating tire wear resistance according to claim 1, wherein said test requirements include:
the test requirements include: the temperature is lower than 7 ℃, and the test is stopped when the road surface frosts or has snow and the thickness of the air-induced road surface water film is more than or equal to 5mm or the visibility of the fog is less than or equal to 100m in rainy days;
a vehicle load, comprising: balancing the balance weight of each seat area of the test vehicle according to the design load;
vehicle condition confirmation, comprising: the vehicle is prepared according to the requirement, the four-wheel positioning parameters and the tire pressure are adjusted to the design values, and the wheel assembly is in dynamic balance;
a travel route comprising: on a field of a round square of a test field, drawing circumferences with the radius of 30m and 50m respectively by using white paint;
the traveling vehicle speed includes: the vehicle is operated to drive along the circumference of the drawn radius of 30m, and the vehicle speed is adjusted to lead the lateral acceleration of the whole vehicle to reach (4.5+/-0.2) m/s 2 And the vehicle speed at this time is recorded, and the corresponding vehicle speed at the time of the test on the circumference of the radius 50m is determined in the same manner.
3. The method for evaluating the abrasion resistance of a tire according to claim 2, wherein the rounding abrasion test comprises:
30m circumference circle abrasion test:
the lateral acceleration of the whole vehicle is kept to reach (4.5 plus or minus 0.2) m/s 2 Is wound at the speed of vehicleRound setting and running;
when the tire wears to the tire pattern wear mark, the test is stopped and the lateral acceleration of the whole vehicle is recorded to reach (4.5+/-0.2) m/s 2 A first test mileage up to the time of test stop;
changing a new tire sample, repeating the two steps 5 times, and recording a second test mileage, a third test mileage, a fourth test mileage, a fifth test mileage and a sixth test mileage respectively;
and the 50m circumference circle-fixing abrasion test and the 30m circumference circle-fixing abrasion test are the same in steps to obtain a seventh test mileage, an eighth test mileage, a ninth test mileage, a tenth test mileage, an eleventh test mileage and a twelfth test mileage respectively.
4. A tire wear resistance evaluation method according to claim 3, wherein said obtaining average values of the running test mileage on the circumference of 30m and 50m from the running test mileage data on the circumference of 30m and 50m, respectively, comprises:
the 30m and 50m circumference driving mileage data respectively obtain a 30m circumference driving mileage average value and a 50m circumference driving mileage average value through formulas (1) and (2):
Figure FDA0004062043910000021
Figure FDA0004062043910000022
wherein: s is S 30avg Is the average value of the driving mileage on the circumference of 30m, S 50avg Is the average value of the driving mileage on the circumference of 50m, S 1 -S 6 The first test mileage, the second test mileage, the third test mileage, the fourth test mileage, the fifth test mileage and the sixth test mileage are respectively, S 7 -S 12 A seventh test mileage, an eighth test mileage, a ninth test mileage, a tenth test mileage, and an eleventh test mileage, respectivelyTest mileage and twelfth test mileage.
5. The method for evaluating the abrasion resistance of a tire according to claim 4, wherein the step of obtaining the standard deviation values of the driving mileage on the circumference of 30m and 50m based on the driving mileage data on the circumference of 30m and 50m, respectively, comprises the steps of:
and (3) and (4) obtaining the standard deviation values of the driving mileage on the circumference of 30m and 50m respectively from the driving mileage data on the circumference of 30m and 50 m:
Figure FDA0004062043910000031
Figure FDA0004062043910000032
wherein: s is S 30log Is the standard deviation value of the driving test mileage on the circumference of 30m, S 50log Is a standard deviation value of the driving test mileage on the circumference of 50 m.
6. The method for evaluating the tire wear resistance according to claim 5, wherein the evaluating the tire wear resistance based on the average value of the 30m and 50m circumferential driving range and the standard deviation value of the 30m and 50m circumferential driving range comprises:
the average value of the running test mileage on the circumference of 30m and 50m and the standard deviation value of the running test mileage on the circumference of 30m and 50m are used for determining the comprehensive evaluation score of the abrasion performance of the tire through a formula (5):
M＝a×S 30avg +b×S 50avg +c×S 30log +d×S 50log (5)
wherein: a and b are the influence factors of the average value of the test mileage on the circumferences of 30M and 50M respectively, c and d are the influence factors of the standard deviation value of the test mileage on the circumferences of 30M and 50M respectively, and M is the comprehensive evaluation score of the wear performance of the tire;
judging whether the abrasion performance of the tire meets an internal control standard threshold value according to the comprehensive evaluation score of the abrasion performance of the tire, thereby obtaining an abrasion energy consumption evaluation result of the tire.
7. A tire wear ability evaluation device, comprising:
the acquisition module is used for acquiring the round-fixing abrasion test according to the test requirement in the tire abrasion capacity evaluation request data to respectively obtain the running test mileage data on the circumference of 30m and 50m when the tire abrasion capacity evaluation request data is received;
the calculation module is used for respectively obtaining an average value of the driving mileage on the circumference of 30m and 50m and a standard deviation value of the driving mileage on the circumference of 30m and 50m according to the driving mileage data on the circumference of 30m and 50 m;
and the evaluation module is used for evaluating the tire abrasion capacity according to the average value of the running test mileage on the circumferences of 30m and 50m and the standard deviation value of the running test mileage on the circumferences of 30m and 50 m.
8. The tire wear ability evaluation device of claim 7, wherein the evaluation module is further configured to:
the average value of the running test mileage on the circumference of 30m and 50m and the standard deviation value of the running test mileage on the circumference of 30m and 50m are used for determining the comprehensive evaluation score of the abrasion performance of the tire through a formula (5):
M＝a×S 30avg +b×S 50avg +c×S 30log +d×S 50log (5)
wherein: a and b are the influence factors of the average value of the test mileage on the circumferences of 30M and 50M respectively, c and d are the influence factors of the standard deviation value of the test mileage on the circumferences of 30M and 50M respectively, and M is the comprehensive evaluation score of the wear performance of the tire;
judging whether the abrasion performance of the tire meets an internal control standard threshold value according to the comprehensive evaluation score of the abrasion performance of the tire, thereby obtaining an abrasion energy consumption evaluation result of the tire.
9. A terminal, comprising:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
a tire wear resistance evaluation method according to any one of claims 1 to 6 is performed.
10. A non-transitory computer readable storage medium, characterized in that instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform a tire wear ability evaluation method according to any one of claims 1 to 6.
CN202310064394.6A 2023-01-16 2023-01-16 Tire grinding energy consumption evaluation method, device, terminal and storage medium Pending CN116296472A (en)

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