CN115302992B - Indirect monitoring method and device for temperature of vehicle tyre, vehicle and storage medium - Google Patents
Indirect monitoring method and device for temperature of vehicle tyre, vehicle and storage medium Download PDFInfo
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- CN115302992B CN115302992B CN202210904271.4A CN202210904271A CN115302992B CN 115302992 B CN115302992 B CN 115302992B CN 202210904271 A CN202210904271 A CN 202210904271A CN 115302992 B CN115302992 B CN 115302992B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/20—Devices for measuring or signalling tyre temperature only
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Abstract
The application discloses a vehicle tire temperature indirect monitoring method, a device, a vehicle and a storage medium, wherein the method comprises the following steps: acquiring an actual temperature value of the environment where the vehicle is located, and acquiring the duration of the current ignition period of the vehicle; calculating the temperature rise of the tire according to the movement duration of the duration, and calculating the first temperature drop of the tire according to the rest duration of the duration; and calculating a first actual temperature value of the vehicle tyre at the current ignition cycle based on the actual temperature value, the temperature rise and the first temperature drop. Therefore, the technical problems that in the related art, the cost of direct type tire temperature monitoring is high, and the cost and the usability cannot be considered are solved.
Description
Technical Field
The present disclosure relates to the field of tire temperature measurement technologies, and in particular, to a method and an apparatus for indirectly monitoring a tire temperature of a vehicle, and a storage medium.
Background
In the running process of the automobile, the tires are continuously contacted with the ground to generate friction force, so that the running direction, speed and the like of the automobile are influenced, and when the automobile runs at a higher air temperature or a higher road surface temperature, the temperature of the tires is too high, the tires burst, and the potential safety hazard is caused.
The tire temperature monitoring system in the related art adopts a direct type tire temperature monitoring method, namely, based on a temperature sensor arranged on the tire, a data sending and receiving module informs a driver of the accurate temperature value of the current tire, so that the accurate tire temperature can be displayed quickly, and the system has obvious advantages in the aspects of monitoring speed and accuracy.
However, the related art is difficult to control, the cost is high in mass production vehicle type, and the specific temperature value in the direct type tire temperature monitoring system is not too much available for the driver, so that the cost and the availability cannot be both achieved, and the improvement is needed.
Disclosure of Invention
The application provides an indirect monitoring method and device for vehicle tire temperature, a vehicle and a storage medium, and aims to solve the technical problems that in the related technology, the cost of direct tire temperature monitoring is high, and the cost and usability cannot be considered.
An embodiment of a first aspect of the present application provides a method for indirectly monitoring a tire temperature of a vehicle, including the steps of: acquiring an actual temperature value of an environment where a vehicle is located, and acquiring the duration of a current ignition period of the vehicle; calculating the temperature rise of the tire according to the movement duration of the duration, and calculating the first temperature drop of the tire according to the rest duration of the duration; and calculating a first actual temperature value of the vehicle tyre at the current ignition cycle from the actual temperature value, the temperature rise and the first temperature drop.
Optionally, in one embodiment of the present application, further includes: acquiring a second temperature drop of the stationary time period after the vehicle is powered down or extinguished; and calculating a second actual temperature value of the vehicle tire after the current ignition period and power-down or flameout according to the actual temperature value, the temperature rise, the first temperature drop and the second temperature drop.
Optionally, in an embodiment of the present application, a calculation formula of the first actual temperature value is:
the calculation formula of the second actual temperature value is as follows:
wherein T is env For the value of the actual temperature to be mentioned,for the first actual temperature value, T tire For the second actual temperature value, T rise For the temperature rise, +.>For the first temperature drop，/>Is the second temperature drop.
Optionally, in one embodiment of the present application, after calculating the second actual temperature value of the vehicle tire, further comprising: judging whether the second actual temperature value is lower than the actual temperature value; and if the second actual temperature value is lower than the actual temperature value, taking the actual temperature value as the second actual temperature value.
Optionally, in one embodiment of the present application, before calculating the first actual temperature value and the second actual temperature value, the method further includes: and acquiring a relation table of movement duration and temperature rise, a relation table of first static duration and first temperature drop and a relation table of second static duration and second temperature drop.
An embodiment of a second aspect of the present application provides a method and apparatus for indirectly monitoring a tire temperature of a vehicle, including: the acquisition module is used for acquiring an actual temperature value of the environment where the vehicle is located and acquiring the duration of the current ignition period of the vehicle; the first calculation module is used for calculating the temperature rise of the tire according to the movement duration of the duration, and calculating the first temperature drop of the tire according to the rest duration of the duration; and a second calculation module for calculating a first actual temperature value of the vehicle tyre at the current ignition cycle based on the actual temperature value, the temperature rise and the first temperature drop.
Optionally, in one embodiment of the present application, further includes: the first acquisition module is used for acquiring a second temperature drop of the stationary duration after the vehicle is powered down or flameout; and a third calculation module for calculating a second actual temperature value of the vehicle tire after the current ignition cycle and power down or flameout according to the actual temperature value, the temperature rise, the first temperature drop and the second temperature drop.
Optionally, in an embodiment of the present application, a calculation formula of the first actual temperature value is:
the calculation formula of the second actual temperature value is as follows:
wherein T is env For the value of the actual temperature to be mentioned,for the first actual temperature value, T tire For the second actual temperature value, T rise For the temperature rise, +.>For the first temperature drop, +.>Is the second temperature drop.
Optionally, in one embodiment of the present application, the third calculation module is further configured to determine whether the second actual temperature value is lower than the actual temperature value; and if the second actual temperature value is lower than the actual temperature value, taking the actual temperature value as the second actual temperature value.
Optionally, in one embodiment of the present application, further includes: the second acquisition module is used for acquiring a relation table of movement duration-temperature rise, a relation table of first static duration-first temperature drop and a relation table of second static duration-second temperature drop.
An embodiment of a third aspect of the present application provides a vehicle, including: the system comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the vehicle tire temperature indirect monitoring method according to the embodiment.
A fourth aspect of the present application provides a computer readable storage medium storing a computer program which when executed by a processor implements a vehicle tyre temperature indirect monitoring method as above.
According to the embodiment of the application, based on the acquired actual temperature value of the environment where the vehicle is located and the ignition cycle information of the vehicle, the serialized correction and calculation of the tire temperature can be carried out, the estimated value of the tire temperature of the vehicle is finally obtained, no additional sensor is needed, the cost is reduced, meanwhile, the accuracy of undervoltage identification of indirect tire pressure monitoring is greatly improved, the accuracy of the tire temperature estimated result is high, and the real-time requirement can be met. Therefore, the technical problems that in the related art, the cost of direct type tire temperature monitoring is high, and the cost and the usability cannot be considered are solved.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
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The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of a method for indirectly monitoring the temperature of a vehicle tire according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the relationship between movement duration and temperature rise of an indirect monitoring method for vehicle tire temperature according to one embodiment of the present application;
FIG. 3 is a schematic diagram of a relationship between a first stationary duration and a first temperature drop of an indirect monitoring method for vehicle tire temperature according to one embodiment of the present application;
FIG. 4 is a schematic diagram of a relationship between a second stationary duration and a second temperature drop of an indirect monitoring method of vehicle tire temperature according to one embodiment of the present application;
FIG. 5 is a flow chart of a method of indirectly monitoring the temperature of a vehicle tire according to one embodiment of the present application;
FIG. 6 is a schematic structural diagram of an indirect monitoring device for vehicle tire temperature according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
The following describes a vehicle tire temperature indirect monitoring method, a device, a vehicle and a storage medium according to the embodiments of the present application with reference to the accompanying drawings. In the method, correction and calculation of the serialized tire temperature can be performed based on the acquired actual temperature value of the environment where the vehicle is located and the ignition cycle information of the vehicle, and finally the estimated value of the vehicle tire temperature is obtained, so that a sensor is not required to be additionally added, the cost is reduced, the accuracy of undervoltage identification of indirect tire pressure monitoring is greatly improved, the accuracy of the tire temperature estimation result is high, and the real-time requirement can be met. Therefore, the technical problems that in the related art, the cost of direct type tire temperature monitoring is high, and the cost and the usability cannot be considered are solved.
Specifically, fig. 1 is a schematic flow chart of an indirect monitoring method for vehicle tire temperature according to an embodiment of the present application.
As shown in fig. 1, the method for indirectly monitoring the temperature of a vehicle tire comprises the following steps:
in step S101, an actual temperature value of the environment in which the vehicle is located is acquired, and a duration of a current ignition cycle of the vehicle is acquired.
In the actual execution process, the embodiment of the application can acquire the basic value of the tire temperature, for example, in the normal running process of the vehicle, the embodiment of the application can acquire the ambient temperature information of the periphery of the vehicle in real time through the ambient temperature sensor.
It can be understood that the tire generates heat due to friction with the road surface in the running process, so that the environmental temperature information cannot directly reflect the temperature of the tire of the vehicle.
Further, the embodiment of the application may further obtain the duration of the current ignition cycle of the vehicle, where the current ignition cycle may refer to a process from when the driver ignites/powers up the vehicle to when the vehicle extinguishes/powers down; the duration of the current ignition cycle may indicate the time the vehicle is in an ignition state, reflecting the total duration of the vehicle at the current ignition cycle, where the duration of the current ignition cycle may include the movement duration T move And a rest period T static 。
In step S102, the temperature rise of the tire is calculated from the duration of the movement and the first temperature drop of the tire is calculated from the duration of the rest.
Those skilled in the art will appreciate that the greater the number of mileage s of the vehicle during the current ignition cycle, the greater the distance the vehicle moves, the greater the tire and ground friction distance, resulting in a constant increase in tire temperature, and the duration of movement T during the duration of the current ignition cycle move The movement of the vehicle in the vehicle can cause the tire to generate heat, and the vehicle is in a static period T static The temperature of the inner tyre slowly drops, so the embodiment of the application can be based on the movement duration T of the duration of the current ignition cycle move Calculating the temperature rise of the tire and according to the rest time length T of the duration time static A first temperature drop of the tire is calculated.
In step S103, a first actual temperature value of the vehicle tire at the current ignition cycle is calculated from the actual temperature value, the temperature rise, and the first temperature drop.
As one possible implementation, the embodiments of the present application may operate for the duration of the current ignition cycle based on the actual temperature value of the environment in which the vehicle is locatedDuration of movement T move Calculating the temperature rise and the rest time T of the duration of the tire static The first temperature drop of the tire is calculated, and the first actual temperature value of the tire of the vehicle in the current ignition period is calculated, so that the indirect temperature estimation of the tire is realized under the condition that an additional sensor is not needed, the current temperature of the tire is conveniently monitored, the accuracy of the temperature estimation is increased, and the cost and the practicability are further considered.
Optionally, in one embodiment of the present application, further includes: acquiring a second temperature drop of a stationary time period after the vehicle is powered down or flameout; and calculating a second actual temperature value of the vehicle tire after the current ignition period and power-down or flameout according to the actual temperature value, the temperature rise, the first temperature drop and the second temperature drop.
In the actual implementation process, the vehicle power-down/flameout rest time can reflect the time of the vehicle in power-down/flameout parking, the temperature of the vehicle tyre can slowly decrease in the time, and when the time of power-down/flameout parking is longer, the temperature of the vehicle tyre finally tends to the outside environment temperature.
The embodiment of the application can be based on the actual temperature value of the environment where the vehicle is located and the movement duration T of the duration of the current ignition cycle move Calculating the temperature rise and the rest time length T of the duration time of the tire static And calculating a first temperature drop of the tire and a second temperature drop of the stationary time period after the vehicle is powered down or turned off, and calculating a second actual temperature value of the tire of the vehicle after the current ignition cycle and the power down or turned off.
Optionally, in an embodiment of the present application, a calculation formula of the first actual temperature value is:
the calculation formula of the second actual temperature value is as follows:
wherein,T env as a result of the value of the actual temperature,for the first actual temperature value, T tire T is the second actual temperature value rise For temperature rise, add->For the first temperature drop, ++>Is the second temperature drop.
In some embodiments, the second actual temperature value, i.e., the final desired vehicle tire temperature estimate, may be noted as T tire Temperature rise, i.e. the temperature rise of the tyre caused by running during the ignition cycle of the vehicle being T rise The first temperature drop, i.e. the drop in tire temperature caused by the vehicle stationary during the ignition cycle, isThe tire temperature decrease value caused by the stationary vehicle after the second temperature decrease, i.e., power-down/flameout, is +.>
Further, the calculation formula of the tire temperature estimated value, i.e., the first actual temperature value, in the current ignition cycle of the vehicle may be as follows:
the final temperature estimate of the tyre, i.e. the second actual temperature value T tire The calculation formula of (2) can be as follows:
optionally, in one embodiment of the present application, before calculating the first actual temperature value and the second actual temperature value, the method further includes: and acquiring a relation table of movement duration and temperature rise, a relation table of first static duration and first temperature drop and a relation table of second static duration and second temperature drop.
In the actual execution process, the temperature rise of the tire caused by running in the ignition period of the vehicle in the embodiment of the application can be obtained by looking up a relation table of movement duration and temperature rise, such as a temperature rise value-time curve shown in fig. 2, wherein curve data can be accumulated by current tire and vehicle type real vehicle test.
The tire temperature decrease value caused by the vehicle stationary in the ignition period in the embodiment of the application can be obtained by looking up a relation table manner of a first stationary duration and a first temperature decrease, such as a temperature decrease absolute value-time curve shown in fig. 3, wherein curve data can be accumulated by current tire and vehicle type real vehicle test.
The tire temperature decrease value caused by the static state of the vehicle after the power-off/flameout in the embodiment of the application can be obtained by looking up a relation table mode of a second static time length and a second temperature decrease, such as a temperature decrease absolute value-time curve shown in fig. 4, wherein curve data can be accumulated by current tire and vehicle type real vehicle test.
Optionally, in one embodiment of the present application, after calculating the second actual temperature value of the vehicle tire, further comprising: judging whether the second actual temperature value is lower than the actual temperature value; if the second actual temperature value is lower than the actual temperature value, the actual temperature value is taken as the second actual temperature value.
As a possible implementation manner, the embodiment of the present application may determine the second actual temperature value after calculating the second actual temperature value of the vehicle tire, when the second actual temperature value is lower than the actual temperature value of the environment where the vehicle is located, the vehicle tire temperature may eventually approach the external environment temperature due to longer time period when the vehicle is powered down/turned off and stopped, and in addition, the vehicle may also approach the external environment temperature due to temperature rising during driving, so when the second actual temperature value is lower than the actual temperature value, the embodiment of the present application may use the actual temperature value as the second actual temperature value, i.e. T tire ＝T env 。
An indirect method of monitoring the temperature of a vehicle tire according to an embodiment of the present application will be described in detail with reference to fig. 5.
As shown in fig. 5, an embodiment of the present application may include the following steps:
step S501: the ambient temperature is collected. In the actual execution process, the embodiment of the application can acquire the basic value of the tire temperature, for example, in the normal running process of the vehicle, the embodiment of the application can acquire the ambient temperature information of the periphery of the vehicle in real time through the ambient temperature sensor.
It can be understood that the tire generates heat due to friction with the road surface in the running process, so that the environmental temperature information cannot directly reflect the temperature of the tire of the vehicle.
Step S502: the current ignition cycle is a stationary period of the vehicle. Further, the embodiment of the application may further obtain the duration of the current ignition cycle of the vehicle, where the current ignition cycle may refer to a process from when the driver ignites/powers up the vehicle to when the vehicle extinguishes/powers down; the duration of the current ignition cycle may indicate the time the vehicle is in an ignition state, reflecting the total duration of the vehicle at the current ignition cycle, where the duration of the current ignition cycle may include the movement duration T move And a rest period T static 。
Duration T of vehicle stationary static The temperature of the inner tyre slowly drops, so the embodiment of the application can be based on the rest duration T of the duration of the current ignition cycle static A first temperature drop of the tire is calculated.
Step S503: the current ignition cycle is run mileage.
Step S504: the current ignition cycle duration. The more the running mileage s of the vehicle in the current ignition period, the longer the distance of the vehicle movement, the longer the friction distance between the tire and the ground, resulting in the continuous increase of the tire temperature, and the current ignition periodDuration of movement T in duration of period move The movement of the vehicle in the ignition device can cause the heating phenomenon of the tire, and the embodiment of the application can be based on the movement duration T of the duration of the current ignition cycle move The temperature rise of the tire was calculated.
Step S505: vehicle power down/off stationary duration. In the actual implementation process, the vehicle power-down/flameout rest time can reflect the time of the vehicle in power-down/flameout parking, the temperature of the vehicle tyre can slowly decrease in the time, and when the time of power-down/flameout parking is longer, the temperature of the vehicle tyre finally tends to the outside environment temperature.
Step S506: the calculation is based on a given mathematical formula. In some embodiments, the second actual temperature value, i.e., the final desired vehicle tire temperature estimate, may be noted as T tire Temperature rise, i.e. the temperature rise of the tyre caused by running during the ignition cycle of the vehicle being T rise The first temperature drop, i.e. the drop in tire temperature caused by the vehicle stationary during the ignition cycle, isThe tire temperature decrease value caused by the stationary vehicle after the second temperature decrease, i.e., power-down/flameout, is +.>
Further, the calculation formula of the tire temperature estimated value, i.e., the first actual temperature value, in the current ignition cycle of the vehicle may be as follows:
step S507: tire temperature estimate for the current ignition cycle. The embodiment of the application can be based on the actual temperature value of the environment where the vehicle is located and the movement duration T of the duration of the current ignition cycle move Calculating the temperature rise and the rest time length T of the duration time of the tire static Calculating a first temperature drop of the tire and a second temperature drop of a stationary period after the vehicle is powered down or turned off, and calculating a current ignition cycle and downA second actual temperature value of the vehicle tire after the electrical or flameout event.
Step S508: tire temperature estimation at the current time. The calculation formula of the second actual temperature value is as follows:
wherein, when the calculated tire temperature estimated value T tire Below ambient temperature T env When (1):
T tire ＝T env 。
according to the vehicle tire temperature indirect monitoring method provided by the embodiment of the application, the correction and calculation of the serialized tire temperature can be carried out based on the acquired actual temperature value of the environment where the vehicle is located and the ignition cycle information of the vehicle, the estimated value of the vehicle tire temperature is finally obtained, no additional sensor is needed, the cost is reduced, meanwhile, the accuracy of undervoltage identification of indirect tire pressure monitoring is greatly improved, the accuracy of the tire temperature estimated result is high, and the real-time requirement can be met. Therefore, the technical problems that in the related art, the cost of direct type tire temperature monitoring is high, and the cost and the usability cannot be considered are solved.
An indirect monitoring device for the temperature of a vehicle tire according to an embodiment of the present application will be described next with reference to the accompanying drawings.
Fig. 6 is a block schematic diagram of an indirect monitoring device for vehicle tire temperature according to an embodiment of the present application.
As shown in fig. 6, the vehicle tire temperature indirect monitoring apparatus 10 includes: the system comprises an acquisition module 100, a first calculation module 200 and a second calculation module 300.
Specifically, the acquisition module 100 is configured to acquire an actual temperature value of an environment in which the vehicle is located, and acquire a duration of a current ignition cycle of the vehicle.
The first calculating module 200 is configured to calculate a temperature rise of the tire according to a movement duration of the duration, and calculate a first temperature drop of the tire according to a rest duration of the duration.
The second calculation module 300 is configured to calculate a first actual temperature value of the vehicle tire at the current ignition cycle based on the actual temperature value, the temperature rise, and the first temperature drop.
Optionally, in one embodiment of the present application, the vehicle tire temperature indirect monitoring apparatus 10 further comprises: the device comprises a first acquisition module and a third calculation module.
The first acquisition module is used for acquiring a second temperature drop of a stationary duration after the vehicle is powered down or extinguished.
And the third calculation module is used for calculating a second actual temperature value of the vehicle tire after the current ignition period and power-down or flameout according to the actual temperature value, the temperature rise, the first temperature drop and the second temperature drop.
Optionally, in an embodiment of the present application, a calculation formula of the first actual temperature value is:
the calculation formula of the second actual temperature value is as follows:
wherein T is env As a result of the value of the actual temperature,for the first actual temperature value, T tire T is the second actual temperature value rise For temperature rise, add->For the first temperature drop, ++>Is the second temperature drop.
Optionally, in an embodiment of the present application, the third calculation module is further configured to determine whether the second actual temperature value is lower than the actual temperature value; if the second actual temperature value is lower than the actual temperature value, the actual temperature value is taken as the second actual temperature value.
Optionally, in one embodiment of the present application, the vehicle tire temperature indirect monitoring apparatus 10 further comprises: and a second acquisition module.
The second acquisition module is used for acquiring a relation table of movement duration-temperature rise, a relation table of first static duration-first temperature drop and a relation table of second static duration-second temperature drop.
It should be noted that the foregoing explanation of the embodiment of the method for indirectly monitoring the temperature of the vehicle tire is also applicable to the device for indirectly monitoring the temperature of the vehicle tire of this embodiment, and will not be repeated here.
According to the vehicle tire temperature indirect monitoring device provided by the embodiment of the application, based on the collected actual temperature value of the environment where the vehicle is located and the ignition cycle information of the vehicle, the serialized tire temperature correction and calculation can be carried out, the estimated value of the vehicle tire temperature is finally obtained, no additional sensor is needed, the cost is reduced, meanwhile, the accuracy of undervoltage identification of indirect tire pressure monitoring is greatly improved, the accuracy of the tire temperature estimated result is high, and the real-time requirement can be met. Therefore, the technical problems that in the related art, the cost of direct type tire temperature monitoring is high, and the cost and the usability cannot be considered are solved.
Fig. 7 is a schematic structural diagram of a vehicle according to an embodiment of the present application. The vehicle may include:
memory 701, processor 702, and computer programs stored on memory 701 and executable on processor 702.
The processor 702, when executing the program, implements the vehicle tire temperature indirect monitoring method provided in the above-described embodiment.
Further, the vehicle further includes:
a communication interface 703 for communication between the memory 701 and the processor 702.
Memory 701 for storing a computer program executable on processor 702.
The memory 701 may include a high-speed RAM memory or may further include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory.
If the memory 701, the processor 702, and the communication interface 703 are implemented independently, the communication interface 703, the memory 701, and the processor 702 may be connected to each other through a bus and perform communication with each other. The bus may be an industry standard architecture (Industry Standard Architecture, abbreviated ISA) bus, an external device interconnect (Peripheral Component, abbreviated PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 7, but not only one bus or one type of bus.
Alternatively, in a specific implementation, if the memory 701, the processor 702, and the communication interface 703 are integrated on a chip, the memory 701, the processor 702, and the communication interface 703 may communicate with each other through internal interfaces.
The processor 702 may be a central processing unit (Central Processing Unit, abbreviated as CPU) or an application specific integrated circuit (Application Specific Integrated Circuit, abbreviated as ASIC) or one or more integrated circuits configured to implement embodiments of the present application.
The present embodiment also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the vehicle tire temperature indirect monitoring method as above.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or N wires, a portable computer cartridge (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (8)
1. An indirect monitoring method for the temperature of a vehicle tyre is characterized by comprising the following steps:
acquiring an actual temperature value of an environment where a vehicle is located, and acquiring the duration of a current ignition period of the vehicle;
calculating the temperature rise of the tire according to the movement duration of the duration, and calculating the first temperature drop of the tire according to the rest duration of the duration; and
calculating a first actual temperature value of the vehicle tyre at the current ignition period according to the actual temperature value, the temperature rise and the first temperature drop;
acquiring a second temperature drop of the stationary time period after the vehicle is powered down or extinguished;
calculating a second actual temperature value of the vehicle tire after the current ignition cycle and power down or flameout according to the actual temperature value, the temperature rise, the first temperature drop and the second temperature drop;
the calculation formula of the first actual temperature value is as follows:
the calculation formula of the second actual temperature value is as follows:
wherein T is env For the value of the actual temperature to be mentioned,for the first actual temperature value, T tire For the second actual temperature value, T rise For the temperature rise, +.>For the first temperature drop, +.>Is the second temperature drop.
2. The method according to claim 1, further comprising, after calculating the second actual temperature value of the vehicle tyre:
judging whether the second actual temperature value is lower than the actual temperature value;
and if the second actual temperature value is lower than the actual temperature value, taking the actual temperature value as the second actual temperature value.
3. The method of claim 1, further comprising, prior to calculating the first actual temperature value and the second actual temperature value:
and acquiring a relation table of movement duration and temperature rise, a relation table of first static duration and first temperature drop and a relation table of second static duration and second temperature drop.
4. An indirect monitoring device for the temperature of a vehicle tyre, comprising:
the acquisition module is used for acquiring an actual temperature value of the environment where the vehicle is located and acquiring the duration of the current ignition period of the vehicle;
the first calculation module is used for calculating the temperature rise of the tire according to the movement duration of the duration, and calculating the first temperature drop of the tire according to the rest duration of the duration; and
a second calculation module for calculating a first actual temperature value of the vehicle tyre at the current ignition cycle according to the actual temperature value, the temperature rise and the first temperature drop;
the first acquisition module is used for acquiring a second temperature drop of the stationary duration after the vehicle is powered down or flameout;
a third calculation module for calculating a second actual temperature value of the vehicle tire after the current ignition cycle and power down or flameout according to the actual temperature value, the temperature rise, the first temperature drop, and the second temperature drop;
the calculation formula of the first actual temperature value is as follows:
the calculation formula of the second actual temperature value is as follows:
wherein T is env For the value of the actual temperature to be mentioned,for the first actual temperature value, T tire For the second actual temperature value, T rise For the temperature rise, +.>For the first temperature drop, +.>Is the second temperature drop.
5. The apparatus of claim 4, wherein the third computing module is further configured to determine whether the second actual temperature value is lower than the actual temperature value; and if the second actual temperature value is lower than the actual temperature value, taking the actual temperature value as the second actual temperature value.
6. The apparatus as recited in claim 4, further comprising:
the second acquisition module is used for acquiring a relation table of movement duration-temperature rise, a relation table of first static duration-first temperature drop and a relation table of second static duration-second temperature drop.
7. A vehicle, characterized by comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the vehicle tyre temperature indirect monitoring method according to any one of claims 1 to 3.
8. A computer-readable storage medium having stored thereon a computer program, wherein the program is executed by a processor for implementing the vehicle tire temperature indirect monitoring method according to any one of claims 1-3.
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| CN202210904271.4A CN115302992B (en) | 2022-07-29 | 2022-07-29 | Indirect monitoring method and device for temperature of vehicle tyre, vehicle and storage medium |
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| CN202210904271.4A CN115302992B (en) | 2022-07-29 | 2022-07-29 | Indirect monitoring method and device for temperature of vehicle tyre, vehicle and storage medium |
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| CN115302992B true CN115302992B (en) | 2024-02-23 |
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| DE102010049088A1 (en) * | 2010-10-21 | 2012-04-26 | Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) | Apparatus and method for automatic tire pressure monitoring on a vehicle and method for displaying information for filling a vehicle tire |
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| DE102004051197A1 (en) * | 2004-10-21 | 2006-04-27 | Daimlerchrysler Ag | Tire`s temperature monitoring method for e.g. tractor, involves determining current tire temperature-actual value based on currently acquired tire pressure-actual value under consideration of isochore system, which is accepted for tire |
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| CN115302992A (en) | 2022-11-08 |
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