CN114750548A - Tire pressure learning method, device, vehicle and storage medium - Google Patents
Tire pressure learning method, device, vehicle and storage medium Download PDFInfo
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- CN114750548A CN114750548A CN202210280534.9A CN202210280534A CN114750548A CN 114750548 A CN114750548 A CN 114750548A CN 202210280534 A CN202210280534 A CN 202210280534A CN 114750548 A CN114750548 A CN 114750548A
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- wheel speed
- tire pressure
- speed value
- vehicle
- pressure sensor
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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
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0471—System initialisation, e.g. upload or calibration of operating parameters
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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
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
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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
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
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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
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
- B60C23/0488—Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force
Abstract
The embodiment of the application provides a tire pressure learning method, a tire pressure learning device, a vehicle and a storage medium. Relates to the technical field of automobiles. Acquiring a first wheel speed value detected by a wheel speed sensor and a radio frequency signal which is transmitted by a tire pressure sensor and meets a preset condition by responding to a tire pressure learning starting request; analyzing the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor; determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value; tire pressure study is carried out based on the distribution position of the tire pressure sensor who confirms, can realize that the car owner accomplishes the study of tire pressure function by oneself, need not to rely on external equipment and 4S shop personnel, provides very big convenience for the user.
Description
Technical Field
The embodiment of the application relates to the technical field of automobiles, in particular to a tire pressure learning method, a tire pressure learning device, a tire pressure learning vehicle and a storage medium.
Background
Current tire pressure systems are classified into direct tire pressure systems and indirect tire pressure systems according to the difference of sensors.
For direct tire pressure systems, the tire contains a tire pressure sensor. After the tire is replaced, the vehicle owner must drive the vehicle to a corresponding 4S shop or a special maintenance point, use a special tire pressure learning device to read the Identity identification number (Id) of the tire pressure sensor, and enable the tire pressure controller to realize parameter matching and learning functions, i.e., realize matching between each tire and the tire pressure controller, thereby completing tire pressure learning. The direct type tire pressure system adopts external special equipment to assist in completing tire pressure learning, requires special equipment to be used in special stores or maintenance points, and brings operation inconvenience to vehicle owners in time and space, so that user experience is not good.
Some direct tire pressure systems are tire pressure controllers adopting self-learning schemes, and can automatically judge specific sensor Id and distribution positions through wheel speed characteristic identification and sensor signal identification, so that the tire pressure controllers complete self-learning. The direct type tire pressure system with the tire pressure controller self-learning scheme has the tire pressure self-learning function, and although the operation of a vehicle owner is convenient, the software development cost and the realization difficulty of the tire pressure controller can be improved.
For indirect tire pressure systems, there are no sensors within the tire. After the tires are replaced, the vehicle owner cannot detect the tire temperature information of the tires, cannot directly know the tire pressure and tire temperature conditions of each specific tire, and unsafe factors exist. The indirect tire pressure system requires a vehicle owner to start the vehicle and travel a certain distance according to a certain vehicle speed, and a tire pressure controller of the vehicle completes identification of physical values according to detected wheel speed or some physical parameters of the tire, so that the tire pressure of the tire is roughly judged, and the tire pressure learning function in the form is completed. The indirect tire pressure system provides certain operation requirements for vehicle owners or operators, and is not convenient.
Disclosure of Invention
Embodiments of the present application provide a tire pressure learning method, apparatus, vehicle, and storage medium to solve the above problems.
In a first aspect, an embodiment of the present application provides a tire pressure learning method. The method comprises the following steps: responding to a tire pressure learning starting request, and acquiring a first wheel speed value detected by a wheel speed sensor and a radio frequency signal which is transmitted by a tire pressure sensor and meets a preset condition; analyzing the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor; determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value; and performing tire pressure learning based on the determined distribution positions of the tire pressure sensors.
In a second aspect, embodiments of the present application provide a tire pressure learning device. The device comprises an acquisition module, an analysis module, a determination module and a learning module. The acquisition module is used for responding to a tire pressure learning starting request, and acquiring a first wheel speed value detected by a wheel speed sensor and a radio frequency signal which is transmitted by a tire pressure sensor and meets a preset condition. The analysis module is used for analyzing the radio frequency signal when the first wheel speed value is larger than the wheel speed threshold value, and obtaining a second wheel speed value detected by the tire pressure sensor. The determining module is used for determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value. The learning module is used for learning the tire pressure based on the determined distribution position of the tire pressure sensor.
In a third aspect, embodiments of the present application provide a vehicle. The vehicle comprises a vehicle body and an on-vehicle host. The vehicle-mounted host is connected with the vehicle body. The in-vehicle host includes a memory and a processor, one or more applications. One or more application programs are stored in the memory and configured to cause the processor to execute the tire pressure learning method provided by the embodiments of the present application when invoked by the processor.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium. The computer readable storage medium has stored therein a program code configured to, when invoked by a processor, cause the processor to execute the tire pressure learning method provided by the embodiments of the present application.
According to the tire pressure learning method, the tire pressure learning device, the vehicle and the storage medium, a first wheel speed value detected by a wheel speed sensor and a radio frequency signal which is transmitted by a tire pressure sensor and meets a preset condition are acquired by responding to a tire pressure learning starting request; analyzing the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor; determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value; tire pressure study is carried out based on the distribution position of the tire pressure sensor who confirms to can confirm tire pressure sensor 'S distribution position according to the wheel speed value that tire pressure sensor and wheel speed sensor detected, and carry out tire pressure study based on tire pressure sensor' S distribution position automatically, and then realize accomplishing the study of tire pressure function by oneself, need not to rely on external equipment and 4S shop personnel, provide very big convenience for the user.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of an application scenario of a tire pressure learning method provided in an embodiment of the present application.
Fig. 2 is a schematic flow chart of a tire pressure learning method according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a tire pressure learning method according to another embodiment of the present application;
fig. 4 is a flowchart illustrating a tire pressure learning method according to an exemplary embodiment of the present application;
fig. 5 is a schematic flowchart of determining the distribution position of the tire pressure sensors in a direct tire pressure system learning mode in a tire pressure learning method according to another exemplary embodiment of the present application;
fig. 6 is a block diagram of a tire pressure learning device provided in an embodiment of the present application;
FIG. 7 is a block diagram of a vehicle according to an embodiment of the present disclosure;
fig. 8 is a block diagram of a computer-readable storage medium according to an embodiment of the present disclosure.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1, fig. 1 is a schematic view of an application scenario of a tire pressure learning method provided in an embodiment of the present application. The tire pressure learning system 10 includes a vehicle 11 and an in-vehicle host 12. The in-vehicle host 12 may be provided inside the vehicle 11.
The vehicle 11 may be a gasoline vehicle, an electric vehicle, or the like, wherein the electric vehicle may be a pure electric vehicle, a hybrid vehicle, a fuel cell vehicle, or the like, and is not particularly limited herein. The vehicle 11 includes a plurality of tires, each of which has a wheel speed sensor mounted thereon for detecting a current wheel speed and a vehicle speed of the vehicle 11.
In some embodiments, each tire of the vehicle 11 further includes a tire pressure sensor, and the tire pressure sensor is used for measuring the pressure and temperature of the tire of the vehicle 11, and also used for detecting the current wheel speed and vehicle speed of the vehicle 11. The tire pressure sensor on each tire of the vehicle 11 may transmit a radio frequency signal of a certain frequency band, and the on-board host 12 may receive the radio frequency signal transmitted by the tire pressure sensor through its frequency modulation function and receiving antenna.
The in-vehicle host 12 is provided with a human-computer interaction display interface. The vehicle-mounted host 12 displays information to a user through a human-computer interaction display interface thereof, and the user can input information to the vehicle-mounted host 12 by executing preset touch operation (such as clicking, sliding and the like) on the human-computer interaction display interface, so that human-computer interaction is completed.
The tire pressure learning method provided by the embodiment of the present application will be explained in detail below, and it should be firstly explained that the first wheel speed value detected by the wheel speed sensor in the present application is a wheel speed value transmitted through the vehicle-mounted bus network, also referred to as a vehicle bus wheel speed value for short. The second wheel speed value detected by the tire pressure sensor in the present application is a wheel speed value obtained by analyzing a tire message included in a radio frequency signal received by the receiving antenna by the vehicle-mounted host, and is also referred to as a wheel speed value of the tire message for short.
Referring to fig. 2, fig. 2 is a schematic flow chart of a tire pressure learning method according to an embodiment of the present application. The tire pressure learning method may be applied to the tire pressure learning system 10 described above, and in particular, may be applied to the in-vehicle host 12 in the tire pressure learning system 10. The tire air pressure learning method may include the following steps S110 to S140.
Step S110, responding to the tire pressure learning starting request, and acquiring a first wheel speed value detected by a wheel speed sensor and a radio frequency signal which is transmitted by a tire pressure sensor and meets a preset condition.
The preset condition may be a condition related to a frequency interval, stability, and the like of the on-board host receiving the radio frequency signal through the receiving antenna. In some embodiments, the preset condition may be that the radio frequency signal with the frequency meeting the preset frequency interval is received with the preset frequency precision within a preset time period or a preset mileage range. It should be noted that the preset time period, the preset range of the driving mileage, and the preset frequency precision may be set according to actual requirements for the test precision, and are not specifically limited herein. The preset frequency interval may be determined according to a frequency range of the radio frequency signal transmitted by the tire pressure sensor of the vehicle, for example, if the frequency range of the radio frequency signal transmitted by the tire pressure sensor of the vehicle is 433 · 434MHz, the preset frequency interval is 433 · 434 MHz.
In the embodiment of the application, the radio frequency signals meeting the preset conditions are sent periodically, continuously and stably, so that not only can a tire pressure sensor arranged on a tire of a vehicle be determined, but also the subsequent steps can be executed according to continuously and stably data, and therefore the accuracy of determining the distribution position of the tire in the subsequent steps is improved.
In some embodiments, the tire pressure learning start request may be the above-mentioned touch operation performed by the user on the human-machine interaction display interface of the vehicle-mounted host, for example, the user clicks the tire pressure learning button on the human-machine interaction display interface of the vehicle-mounted host. In other embodiments, when the mobile terminal used by the user is connected to the vehicle-mounted host, the tire pressure learning start request may also be a specific sequence for starting tire pressure learning, which is sent by the mobile terminal to the vehicle-mounted host, and the sequence may be set according to actual requirements, and is not specifically limited herein. For example, an application program corresponding to the vehicle is installed on the mobile terminal, and the user can send the sequence to the vehicle-mounted host by clicking a button related to starting the vehicle tire pressure learning in the application program. Through the interaction of the vehicle-mounted host and the user, the visual and convenient operation problems of the user to the tire pressure learning process are solved, the learning of the tire pressure function of a vehicle owner by one person is realized, and the dependence on a 4S shop is not required.
In some embodiments, the in-vehicle host may receive, through the vehicle bus network, a first wheel speed value detected by the wheel speed sensor in response to the tire pressure learning start request, and receive, through the receiving antenna, a radio frequency signal transmitted by the tire pressure sensor, which satisfies the preset condition. For example, the frequency inside the vehicle-mounted host can be modulated to 433-.
And step S120, analyzing the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor.
The radio frequency signal includes a radio frequency message, which is the above mentioned tire message.
In some embodiments, the on-board host may parse the tire message in the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor. It should be noted that, in this step, it is not determined that the received radio frequency signal is from the tire pressure sensor of the vehicle, and the tire pressure sensor in this step may detect that the second wheel speed value is the same as the first wheel speed value detected by the wheel speed sensor, or may not be the same as the first wheel speed value detected by the wheel speed sensor.
And step S130, determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value.
In some embodiments, it may be determined whether the radio frequency signal received by the vehicle-mounted host is sent by the tire pressure sensor of the vehicle according to the first wheel speed value and the second wheel speed value; if the vehicle is determined to be sent by the tire pressure sensor of the vehicle, monitoring whether the vehicle turns or not; if the vehicle tire pressure sensor does not transmit the signal, continuously acquiring a first wheel speed value detected by the wheel speed sensor and a radio frequency signal which is transmitted by the tire pressure sensor and meets a preset condition.
In some embodiments, if vehicle turning is monitored, the distribution of wheel speed sensors (e.g., wheel speed sensor located on the upper left wheel) may be determined based on the difference between the inner wheels of the tires when the vehicle is turning (e.g., the inner wheel is slower than the outer wheel when the vehicle is turning). The tire pressure sensor and the wheel speed sensor, which have the same detected wheel speed value, are determined to have a correspondence relationship. The distribution positions of the wheel speed sensors may be regarded as the distribution positions of the tire pressure sensors having a corresponding relationship with the wheel speed sensors.
In other embodiments, when it is monitored that the vehicle is turning, the tire pressure sensor and the wheel speed sensor with the same detected wheel speed value may be determined to have a corresponding relationship. And determining the distribution position of the wheel speed sensor according to the inner wheel difference of each tire when the vehicle turns, and taking the distribution position of the wheel speed sensor as the distribution position of a tire pressure sensor which has a corresponding relation with the wheel speed sensor.
It should be noted that, compared with the scheme of determining the distribution position of the wheel speed sensor and then determining the corresponding relationship between the wheel speed sensor and the tire pressure sensor, the scheme of determining the corresponding relationship between the wheel speed sensor and the tire pressure sensor and then determining the distribution position of the wheel speed sensor has higher efficiency and saves more computing resources, because if the corresponding relationship between the wheel speed sensor and the tire pressure sensor cannot be determined, the tire pressure learning failure can be directly displayed in the human-computer interaction display interface of the vehicle-mounted host computer without executing the step of determining the distribution position of the wheel speed sensor.
In step S140, tire pressure learning is performed based on the determined distribution location of the tire pressure sensors.
In some embodiments, the vehicle-mounted host may send the determined distribution position of the tire pressure sensor to the tire pressure controller in a vehicle-mounted bus network message or a vehicle-mounted network special response instruction manner, so that the tire pressure controller may complete tire pressure matching learning according to the distribution position of each tire pressure sensor, and when the vehicle-mounted host receives an instruction that the tire pressure matching learning is completed and the tire pressure controller sends the instruction through the vehicle-mounted bus network, the vehicle-mounted host displays that the tire pressure learning is successful on a human-computer interaction display interface of the vehicle-mounted host.
According to the tire pressure learning method provided by the embodiment of the application, a first wheel speed value detected by a wheel speed sensor and a radio frequency signal which is transmitted by a tire pressure sensor and meets a preset condition are obtained by responding to a tire pressure learning starting request; analyzing the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor; determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value; tire pressure study is carried out based on the distribution position of the tire pressure sensor who confirms to can confirm the distribution position of tire pressure sensor according to the fast value of wheel that tire pressure sensor and wheel speed sensor detected, and carry out tire pressure study based on the distribution position of tire pressure sensor automatically, and then realize accomplishing the study of tire pressure function by oneself, need not to rely on external equipment and 4S shop personnel, provide very big convenience for the user.
Referring to fig. 3, fig. 3 is a schematic flow chart of a tire pressure learning method according to another embodiment of the present application. The tire pressure learning method may be applied to the tire pressure learning system 10 described above, and in particular, may be applied to the in-vehicle host 12 in the tire pressure learning system 10. The tire pressure learning method includes the following steps S110 to S140.
Step S210, in response to the tire pressure learning start request, acquiring a first wheel speed value detected by the wheel speed sensor.
For detailed description of step S210, please refer to step S110, which is not described herein again.
Step S220, detecting whether a radio frequency signal meeting a preset condition and transmitted by the tire pressure sensor is acquired.
As described above, the preset condition may be a condition related to a frequency interval, stability, and the like of the in-vehicle host receiving the radio frequency signal through the receiving antenna. For example, the preset condition may be that the radio frequency signal with the frequency meeting the preset frequency interval is received with the preset frequency precision within a preset time period or a preset mileage range. As an example, the frequency inside the vehicle-mounted host may be modulated to 433 + 434MHz, and the searching and identifying may be performed according to the frequency precision of 0.05MHz, the radio frequency signal transmitted by the tire pressure sensor of 433MHz is searched and received, and if the radio frequency signal transmitted by the tire pressure sensor on each tire of 433MHz may be continuously and stably received with the frequency precision of 0.05MHz within a preset time period (e.g., 3 seconds) or a preset mileage range (e.g., 100 meters), it is determined that the radio frequency signal transmitted by the tire pressure sensor and meeting the preset condition is acquired.
In some embodiments, the detailed implementation of step S220 may be as follows. Detecting whether a radio frequency signal transmitted by a tire pressure sensor with a frequency meeting a preset frequency interval is received at a preset frequency within a preset time period or a preset mileage range; if the radio frequency signals transmitted by the tire pressure sensor with the frequency meeting the preset frequency interval are received at the preset frequency within the preset time period or the preset mileage range, determining to acquire the radio frequency signals transmitted by the tire pressure sensor and meeting the preset conditions, and executing the steps S230 to S250; otherwise, it is determined that the radio frequency signal which is transmitted by the tire pressure sensor and meets the preset condition is not acquired, and step S260 is executed.
Whether the tire pressure sensor is arranged on a tire of the vehicle can be judged by judging whether the vehicle-mounted host computer can acquire the radio frequency signal which is transmitted by the tire pressure sensor and meets the preset condition through the receiving antenna, so that whether the tire pressure system of the vehicle is a direct tire pressure system or an indirect tire pressure system can be determined, the method steps corresponding to the determined tire pressure system are executed, and the learning of the tire pressure function is completed by self.
Step S230, analyzing the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor.
If the radio frequency signals which are transmitted by the tire pressure sensor and meet the preset conditions are obtained, it is indicated that the tire pressure sensor is arranged on the tire of the vehicle, and at the moment, the radio frequency signals can be analyzed to obtain a second wheel speed value of the tire pressure sensor.
In some embodiments, before analyzing the rf signal, it may be detected whether the first wheel speed value is greater than a predetermined wheel speed threshold; if yes, analyzing the radio frequency signal; if not, the first wheel speed value detected by the wheel speed sensor and the radio frequency signal which is transmitted by the tire pressure sensor and meets the preset conditions are obtained again. The preset wheel speed threshold may be set according to actual requirements, for example, 60 kilometers per hour (km/h), and is not limited herein. The larger the preset wheel speed threshold, the more accurate the test result, because the larger the first wheel speed value exceeding the preset wheel speed threshold, the larger the pitch between the vehicles is, for example, the pitch between the vehicles when the vehicles travel on the highway is larger than the pitch between the vehicles when the vehicles travel on the ordinary road. Accordingly, the greater the spacing between the vehicles, the greater the likelihood that the received radio frequency signal belongs to the host vehicle, the higher the accuracy of the subsequent step of performing tire pressure learning from the radio frequency signal. That is, the present embodiment can improve the accuracy of tire pressure learning by setting a preset wheel speed threshold and analyzing the rf signal when the first wheel speed value is greater than the preset wheel speed threshold.
Step S240, determining a distribution position of the tire pressure sensors according to the first wheel speed value and the second wheel speed value.
Since a vehicle generally has a plurality of tires, a plurality of wheel speed detectors and tire pressure sensors respectively provided to the plurality of tires should be provided, and accordingly, the first wheel speed value includes a plurality of first sub-wheel speed values and the second wheel speed value includes a plurality of second sub-wheel speed values. For example, the vehicle has four tires, and accordingly, there are four first sub-wheel speed values and four second sub-wheel speed values.
In some embodiments, it may be detected whether a plurality of second sub-wheel speed values of the second wheel speed values and a plurality of first sub-wheel speed values of the first wheel speed values are all the same; if the vehicle driving states are the same, monitoring the driving state of the vehicle; otherwise, continuously acquiring the first wheel speed value detected by the wheel speed sensor. Since the wheel speeds of the tires detected by the tire pressure sensor and the wheel speed sensor on the same tire should be the same, when the plurality of second sub-wheel speed values in the second wheel speed values and the plurality of first sub-wheel speed values in the first wheel speed values are the same, it can be ensured that the received radio frequency signal is transmitted by the tire pressure sensor belonging to the vehicle, thereby ensuring the accuracy of the tire pressure learning result.
In some embodiments, it may further be detected whether a plurality of second sub-wheel speed values of the second wheel speed values and a plurality of first sub-wheel speed values of the first wheel speed values are the same every preset period and consecutive preset times, and if so, the driving state of the vehicle is monitored; and if not, re-acquiring the first wheel speed value detected by the wheel speed sensor. The preset period and the preset times can be set according to actual requirements for precision, for example, the preset period can be 0.5 second, and the preset times can be 3 times, which is not specifically limited herein in the embodiments of the present application. Whether a plurality of second sub-wheel speed values in the second wheel speed values are the same as a plurality of first sub-wheel speed values in the first wheel speed values or not can be discriminated through multiple cycles, the received radio frequency signals can be further ensured to be sent by the tire pressure sensor of the vehicle, and therefore the accuracy of the tire pressure learning result is improved.
In some embodiments, it may be determined whether the first sub-wheel speed values are the same, and if so, it may be determined whether the first sub-wheel speed values are the same as the second sub-wheel speed values. Otherwise, continuously acquiring the first wheel speed value detected by the wheel speed sensor. If the plurality of first sub-wheel speed values are the same, the vehicle is in a running state running along a straight line at present, and at the moment, whether the plurality of first sub-wheel speed values are the same as the plurality of second sub-wheel speed values or not is judged, so that the judgment efficiency can be obviously improved, and the calculation time is saved.
In some embodiments, monitoring the driving state of the vehicle may obtain an offset angle of the tire, and determine whether the vehicle is turning according to the offset angle of the tire. And if the deviation angle of the tire is larger than the preset deviation angle threshold value, determining that the vehicle turns, otherwise, determining that the vehicle does not turn. The preset offset angle threshold value may be set according to actual requirements for test accuracy, for example, 45 degrees, and the embodiment of the present application is not specifically limited herein. The determination may be performed by using a single tire, or may be performed by using a plurality of tires in combination. When the determination is comprehensively carried out by adopting a plurality of tires, whether the offset angle of each tire is larger than a preset offset angle threshold value or not can be respectively determined, if the subjective angle of each tire is larger than the offset angle threshold value, the vehicle is determined to turn, and if not, the vehicle is determined not to turn. Or setting weight for each tire, calculating a target offset angle according to the offset angle of each tire according to the weight, if the target offset angle is larger than a preset offset angle threshold value, determining that the vehicle turns, and if not, determining that the vehicle does not turn.
In some embodiments, when the vehicle is monitored to turn, the distribution position of each wheel speed sensor can be determined according to the difference value of a plurality of first sub-wheel speed values, wherein each first sub-wheel speed value corresponds to the distribution position of one wheel speed sensor; the distribution position of the wheel speed sensor corresponding to each first sub-wheel speed value is determined as the distribution position of the tire pressure sensor corresponding to a second sub-wheel speed value which is the same as the first sub-wheel speed value. In this case, the difference value of the plurality of first sub-wheel speed values actually refers to an inner wheel difference between the tires when the vehicle turns, for example, when the tire turns to the left side, the wheel speed of the tire on the left side is lower than that of the tire on the right side, and therefore, it is possible to determine on which tire the wheel speed sensor is located according to the inner wheel difference between the tires, that is, the distribution position of the wheel speed sensor.
For example, the vehicle has four tires A, B, C, D, a first plurality of wheel speed values a1, B1, C1, D1, and a second plurality of wheel speed values a2, B2, C2, D2. When it is monitored that the vehicle is running around a corner, it can be determined from the differences of a1, B1, C1, and D1 that the wheel speed sensor corresponding to a1 is located on tire a, the wheel speed sensor corresponding to B1 is located on tire B, the wheel speed sensor corresponding to C1 is located on tire C, and the wheel speed sensor corresponding to D1 is located on tire D, respectively. Since a1 ═ a2, B1 ═ B2, C1 ═ C2, and D1 ═ D2, the distribution positions of each tire pressure sensor can be obtained, that is, the tire pressure sensor corresponding to a2 is located on tire a, the tire pressure sensor corresponding to B2 is located on tire B, the tire pressure sensor corresponding to C2 is also located on tire C, and the tire pressure sensor corresponding to D2 is also located on tire D. Specifically, the tire pressure sensor Id may be bound to the tire Id to clarify on which specific tire the tire pressure sensor is located.
In some embodiments, it may also be detected whether the distribution positions of the tire pressure sensors determined from the first wheel speed value and the second wheel speed value are all the same for a preset number of consecutive times; if the tire pressure sensor is the same as the tire pressure sensor, tire pressure learning is carried out based on the determined distribution position of the tire pressure sensor; if the distribution position of the tire pressure sensor determined according to the first wheel speed value and the second wheel speed value is different from the distribution position of the tire pressure sensor determined at the previous time, the distribution position of the tire pressure sensor is determined again according to the first wheel speed value and the second wheel speed value, and the frequency is recalculated. The preset number of times may be set according to a requirement for testing accuracy, for example, 5 times, and the embodiment of the present application is not limited specifically herein. Whether the distribution positions determined by the continuous preset times are the same or not is verified for multiple times, and if the distribution positions are the same, the distribution positions are determined to be the final distribution positions of the tire pressure sensors, so that the accuracy of the determined distribution positions of the tire pressure sensors is improved, the distribution positions are sent to a tire pressure controller in the subsequent process, and the tire pressure controller can correctly measure the tire temperature and the tire pressure of each tire.
In step S250, tire pressure learning is performed based on the determined distribution location of the tire pressure sensors.
In some embodiments, after the distribution positions of the tire pressure sensors are determined, the distribution positions of the tire pressure sensors can be sent to the tire pressure controller through the vehicle-mounted bus network, so that the tire pressure controller can perform tire pressure matching learning according to the distribution positions of the tire pressure sensors, and when the vehicle-mounted host receives an instruction that the tire pressure matching learning is completed and the tire pressure controller sends the instruction through the vehicle-mounted bus network, the vehicle-mounted host displays that the tire pressure learning is successful on a human-computer interaction display interface of the vehicle-mounted host.
As described above, if the radio frequency signal satisfying the preset condition transmitted by the tire pressure sensor is not acquired in step S220, step S260 is performed.
In step S260, the first wheel speed value is transmitted to the tire pressure controller, so that the tire pressure controller performs tire pressure learning based on the first wheel speed value.
If the radio frequency signal which is transmitted by the tire pressure sensor and meets the preset condition is not acquired, it may be indicated that the vehicle does not have the tire pressure sensor, or the vehicle has the tire pressure sensor but cannot continuously, stably and periodically receive the radio frequency signal. If the vehicle-mounted host cannot periodically and continuously and stably receive the radio frequency signals transmitted by the tire pressure sensor, the stability of data cannot be ensured, and the accuracy of performing subsequent tire pressure learning according to the radio frequency signals transmitted by the tire pressure sensor cannot be ensured.
In particular, a tire pressure learning total time length threshold value may also be preset, the vehicle-mounted host computer may count the total time length for executing the steps S210 to S260, and if the total time length for executing the steps S210 to S260 exceeds the preset tire pressure learning total time length threshold value, the vehicle-mounted host computer displays that the tire pressure learning fails on a human-computer interaction display interface of the vehicle-mounted host computer.
Referring to fig. 4, fig. 4 is a schematic flowchart of a tire pressure learning method according to an exemplary embodiment of the present application. The tire air pressure learning method may be applied to the tire air pressure learning system 10 as shown in fig. 1, and in particular, may be applied to the in-vehicle host 12 in the tire air pressure learning system 10. As shown in fig. 4, the tire air pressure learning method may include the following steps S310 to S3130.
And step S310, responding to a tire pressure learning request triggered by a user through an interactive button of the vehicle-mounted host, and starting tire pressure learning by the vehicle-mounted host.
The interactive button can be a graphic button directly displayed on a human-computer interaction interface of the vehicle-mounted host computer, or a graphic button in an APP downloaded in the vehicle-mounted host computer or the mobile terminal.
Step S320, it is monitored whether the vehicle is started and in a driving state. If the vehicle is monitored to be started and in a running state, executing step S330; otherwise, the step S320 is continuously executed.
Step S330, the frequency of the interior of the vehicle-mounted host is modulated to the range of 433 + 434MHz, searching and identifying are carried out according to the frequency precision of 0.05MHz, radio frequency signals transmitted by the tire pressure sensor of 433MHz are searched and received, and the wheel speed value detected by the wheel speed sensor is obtained through a vehicle-mounted bus network. The radio frequency receiving function is completed by multiplexing the frequency modulation function of the vehicle-mounted host and the receiving antenna of the vehicle-mounted host, the problem of acquiring the radio frequency signal of the direct tire pressure sensor is solved, and the external tire pressure learning equipment is replaced.
Step S340, detecting whether the radio frequency signal of 433MHz is acquired with the frequency precision of 0.05MHz within a preset time period or a preset driving mileage range.
Here, the preset time period (e.g., 3 seconds) and the preset range of the mileage (e.g., 100 meters) may be set according to actual needs, and are not particularly limited herein.
If the 433MHz radio frequency signal is obtained with the frequency accuracy of 0.05MHz within the preset time period or the preset range of the mileage, the steps S350 to S380, and the steps S3110 to S3130 are executed; otherwise, step S390 to step S3130 are executed.
In step S350, the in-vehicle host enters a direct tire pressure system learning mode.
Whether the vehicle-mounted host is in a preset time period or a preset travel mileage range or not is judged, the 433MHz radio frequency signal is acquired with the frequency precision of 0.05MHz, whether the vehicle-mounted host can periodically, continuously and stably receive the radio frequency signal transmitted by the tire pressure sensor or not can be determined, and therefore the tire pressure system of the vehicle is judged to be a direct tire pressure system or an indirect tire pressure system, the learning of the tire pressure function is completed by self aiming at the corresponding tire pressure system, the problem of the adaptive compatible learning of the direct tire pressure system and the indirect tire pressure system is considered, and the convenience of the tire pressure learning can be greatly improved.
And step S360, analyzing the radio frequency signal to obtain a wheel speed value detected by the tire pressure sensor.
Step S370, it is detected whether the distribution position of the tire pressure sensors can be determined by comparing the wheel speed value detected by the tire pressure sensors with the wheel speed value detected by the wheel speed sensors. If yes, step S380, step S3110 to step S3130 are performed. If not, go to step S3130.
The vehicle-mounted host can perform bus message interaction with the in-vehicle control unit, the distribution positions of the tire pressure sensors are determined by judging the wheel speed value detected by the wheel speed sensor acquired through the vehicle-mounted bus network and the wheel speed value detected by the tire pressure sensor received through the receiving antenna, namely, each tire pressure sensor is positioned on the corresponding tire, so that the vehicle-mounted host and the tire pressure controller can complete the tire pressure learning function together, resources are reasonably utilized, the tire pressure learning is not required to be completed by the tire pressure controller alone, and the software development cost of the tire pressure controller is reduced.
And step S380, sending the distribution positions of the tire pressure sensors to the tire pressure controller, so that the tire pressure controller performs tire pressure matching learning according to the distribution positions of the tire pressure sensors. Subsequently, the process proceeds to step S3110.
If the 433MHz radio frequency signal is not acquired with the frequency precision of 0.05MHz within the preset time period or the preset mileage range, steps S390 to S3130 are performed.
In step S390, the vehicle-mounted host enters an indirect tire pressure system learning mode.
In step S3100, the vehicle-mounted host sends a wheel speed value detected by a wheel speed sensor to the tire pressure controller, so that the tire pressure controller performs automatic learning matching according to the wheel speed detected by the wheel speed sensor. Subsequently, the process advances to step S3110.
In step S3110, it is detected whether a learning result transmitted by the tire pressure controller is received within a preset time period.
The preset time period may be set according to actual needs, for example, 5 minutes, and the embodiment of the present application is not particularly limited herein.
If the learning result sent by the tire pressure controller is received within the preset time period, executing step S3120; otherwise, step S3130 is performed.
And step S3120, the vehicle-mounted host computer displays that the tire pressure learning is successful. Specifically, the vehicle-mounted host computer can display that tire pressure learning succeeds on a human-computer interaction display interface of the vehicle-mounted host computer.
Step S3130, the in-vehicle host computer displays that the tire pressure learning fails. Specifically, the vehicle-mounted host computer can display the tire pressure learning failure on a human-computer interaction display interface of the vehicle-mounted host computer.
In this application embodiment, through on-vehicle host computer and user' S interaction, solved the user to the visual and convenient operation problem of tire pressure learning process, realized the study of the single completion tire pressure function of car owner simultaneously, need not to rely on the 4S shop.
It should be noted that, please refer to the above steps S110 to S140 or S210 to S260 for the part not described in detail in the above steps S310 to S3130, which is not repeated herein.
Referring to fig. 5, fig. 5 is a schematic flowchart illustrating a method for determining a distribution location of tire pressure sensors using a direct tire pressure system learning mode in a tire pressure learning method according to another exemplary embodiment of the present application. The tire air pressure learning method may be applied to the tire air pressure learning system 10 as shown in fig. 1, and in particular, may be applied to the in-vehicle host 12 in the tire air pressure learning system 10. As shown in fig. 5, after entering the direct tire pressure system learning mode, the tire pressure learning method may include the following steps S410 to S480.
Step S410, during the driving process of the vehicle, the vehicle-mounted host receives and analyzes the radio frequency signal transmitted by the tire pressure sensor through the receiving antenna, and acquires the wheel speed value detected by each wheel speed sensor through the vehicle-mounted bus network.
In step S420, it is detected whether the wheel speed values detected by each wheel speed sensor are all greater than 60 km/h. If the wheel speed value detected by each wheel speed sensor is greater than 60km/h, step S430 is performed, otherwise, step S410 is returned to.
Step S430, the vehicle-mounted host analyzes the radio frequency signal to obtain a wheel speed value detected by each tire pressure sensor.
Since the possibility that a plurality of vehicles are close to each other is low when the vehicle runs at a high speed, the radio frequency signals are analyzed when the wheel speed value detected by the wheel speed sensor is detected to be greater than 60km/h, and the vehicle-mounted host can be prevented from mistakenly regarding the received radio frequency signals of other adjacent vehicles as the radio frequency signals of the vehicle.
In step S440, it is detected whether the wheel speed values detected by all the wheel speed sensors are the same as the wheel speed values detected by all the tire pressure sensors. If the wheel speed values detected by all the wheel speed sensors are the same as the wheel speed values detected by all the tire pressure sensors, step S450 is executed, otherwise, the step S410 is returned to.
In step S450, it is detected whether the wheel speed values detected by all the wheel speed sensors of the three consecutive groups are the same as the wheel speed values detected by all the tire pressure sensors. If the wheel speed values detected by all the wheel speed sensors of the three consecutive groups and the wheel speed values detected by all the tire pressure sensors are the same, executing the steps S460 to S480, otherwise, returning to the step S410.
And step S460, monitoring the vehicle to turn.
In step S470, the in-vehicle host machine determines that the tire pressure sensor and the wheel speed sensor, which have the same detected wheel speed value, have a correspondence relationship.
And step S480, the vehicle-mounted host determines the distribution position of the tire pressure sensor according to the inner wheel difference when the vehicle turns and the corresponding relation between the tire pressure sensor and the wheel speed sensor.
It should be noted that, please refer to the above steps S110 to S140 or steps S210 to S250 for parts not described in detail in the above steps S410 to S480, which are not described again.
Referring to fig. 6, fig. 6 is a block diagram of a tire pressure learning device according to an embodiment of the present application. The tire pressure learning device 500 includes an acquisition module 510, a parsing module 520, a determination module 530, and a learning module 540, which are connected to each other. The obtaining module 510 is configured to obtain a first wheel speed value detected by a wheel speed sensor and a radio frequency signal transmitted by a tire pressure sensor and meeting a preset condition in response to a tire pressure learning start request. The analyzing module 520 is configured to analyze the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor when the first wheel speed value is greater than the wheel speed threshold value. The determining module 530 is configured to determine a distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value. The learning module 540 is configured to perform tire pressure learning based on the determined distribution location of the tire pressure sensor.
In some embodiments, the first wheel speed value comprises a first plurality of sub-wheel speed values and the second wheel speed value comprises a second plurality of sub-wheel speed values. The determination module 530 may include a vehicle monitoring submodule, a first position determination submodule, and a second position determination submodule. The vehicle monitoring submodule is used for monitoring the running state of the vehicle if a plurality of second wheel speed values in the second wheel speed values are the same as a plurality of first wheel speed values in the first wheel speed values. The first position determining submodule is used for respectively determining the distribution position of each wheel speed sensor according to the difference value of a plurality of first sub wheel speed values when the vehicle is monitored to turn and run, and each first sub wheel speed value corresponds to the distribution position of one wheel speed sensor. The second position determining submodule is used for determining the distribution position of the wheel speed sensor corresponding to each first sub-wheel speed value as the distribution position of the tire pressure sensor corresponding to a second sub-wheel speed value which is the same as the first sub-wheel speed value.
In some embodiments, the vehicle monitoring sub-module may include a vehicle monitoring unit. The vehicle monitoring unit is used for monitoring the running state of the vehicle if a plurality of second sub-wheel speed values in the second wheel speed values and a plurality of first sub-wheel speed values in the first wheel speed values are detected to be the same at preset intervals and continuously for preset times.
In some embodiments, the learning module 540 may include a learning sub-module and a calculation sub-module. The learning submodule is used for performing tire pressure learning based on the distribution positions of the tire pressure sensors determined according to the first wheel speed value and the second wheel speed value when the distribution positions of the tire pressure sensors determined according to the first wheel speed value and the second wheel speed value are the same within the continuous preset times. The calculation submodule is used for determining the distribution position of the tire pressure sensor again according to the first wheel speed value and the second wheel speed value and recalculating the times when the distribution position of the tire pressure sensor determined according to the first wheel speed value and the second wheel speed value is different from the distribution position of the tire pressure sensor determined at the previous time.
In some embodiments, parsing module 520 may include a parsing submodule and a retrieving submodule. The analysis submodule is used for analyzing the radio frequency signal when the first wheel speed value is larger than a wheel speed threshold value. The obtaining submodule is used for obtaining the first wheel speed value and the radio frequency signal again when the first wheel speed value is not larger than the wheel speed threshold value.
In some embodiments, the tire pressure learning device 500 may further include a transmitting module (not shown in the drawings). The transmitting module is used for transmitting the first wheel speed value to the tire pressure controller when the radio frequency signal which is transmitted by the tire pressure sensor and meets the preset condition is not acquired, so that the tire pressure controller can learn the tire pressure based on the first wheel speed value.
In some embodiments, the predetermined condition is that the rf signals are transmitted at the same period within a predetermined time period or a predetermined driving range, and a frequency interval of the rf signals satisfies a predetermined frequency interval.
It will be apparent to those skilled in the art that the tire pressure learning apparatus 500 provided in the embodiments of the present application may implement the tire pressure learning method provided in the embodiments of the present application. The specific working processes of the above devices and modules may refer to the processes corresponding to the tire pressure learning method in the embodiments of the present application, and are not described herein again.
In the embodiments provided in this application, the coupling, direct coupling, or communication connection between the modules shown or discussed may be indirect coupling or communication coupling through some interfaces, devices, or modules, and may be electrical, mechanical, or other forms, which are not limited in this application.
In addition, each functional module in the embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules are integrated into one module. The integrated module may be implemented in the form of hardware, or may also be implemented in the form of a functional module of software, which is not limited in this embodiment of the present application.
Referring to fig. 7, fig. 7 is a structural block diagram of a vehicle according to an embodiment of the present disclosure. The vehicle 600 includes a vehicle body 610 and an in-vehicle host 620. The in-vehicle main unit 620 is connected to the vehicle body 610. In-vehicle host 620 may include one or more of the following: a memory 621, one or more processors 622, and one or more application programs, wherein the one or more application programs may be stored in the memory 621 and configured to cause the one or more processors 622 to execute the above tire pressure learning method provided by the embodiments of the present application when being called by the one or more processors 622.
The Memory 621 may include a Random Access Memory (RAM) or a Read-Only Memory (ROM). The memory 621 may be used to store an instruction, a program, code, a set of codes, or a set of instructions. The memory 621 may include a program storage area and a data storage area. Wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function, instructions for implementing the various method embodiments described above, and the like. The storage data area may store data created by the in-vehicle host 620 in use, and the like.
In some embodiments, vehicle 600 may further include a plurality of tires 630, each tire 630 having wheel speed sensor 631 and tire pressure sensor 632 disposed thereon. Wheel speed sensor 631 may be used to detect a wheel speed on its corresponding tire. The tire pressure sensor 632 may also be used to detect the wheel speed of the corresponding tire, and in addition, the tire pressure sensor 632 may also transmit a radio frequency signal of a certain frequency band. The vehicle host 620 may exchange data with the wheel speed sensor 631 via a vehicle bus network, and may also receive a radio frequency signal transmitted by the tire pressure sensor 632 via a frequency modulation function and a receiving antenna thereof.
Referring to fig. 8, fig. 8 is a block diagram illustrating a structure of a computer readable storage medium according to an embodiment of the present disclosure. The computer-readable storage medium 700 has stored therein a program code 710, the program code 710 being configured to, when called by a processor, cause the processor to execute the above tire pressure learning method provided by the embodiment of the present application.
The computer-readable storage medium 700 may be an electronic Memory such as a flash Memory, an Electrically Erasable-Erasable Programmable Read-Only-Memory (EEPROM), an Erasable Programmable Read-Only-Memory (EPROM), a hard disk, or a ROM. Optionally, the Computer-Readable Storage Medium 700 includes a Non-volatile Computer-Readable Medium (Non-Transitory Computer-Readable Storage Medium, Non-TCRSM). The computer readable storage medium 700 has storage space for program code 710 for performing any of the method steps of the method described above. The program code 710 can be read from or written to one or more computer program products. The program code 710 may be compressed in a suitable form.
In summary, the tire pressure learning method, the tire pressure learning apparatus, the vehicle and the storage medium provided in the embodiments of the present application obtain a first wheel speed value detected by a wheel speed sensor and a radio frequency signal that satisfies a preset condition and is transmitted by a tire pressure sensor by responding to a tire pressure learning start request; analyzing the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor; determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value; tire pressure study is carried out based on the distribution position of the tire pressure sensor who confirms, can realize that the car owner accomplishes the study of tire pressure function by oneself, need not to rely on external equipment and 4S shop personnel, provides very big convenience for the user.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same. Although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A tire pressure learning method, characterized by comprising:
responding to a tire pressure learning starting request, and acquiring a first wheel speed value detected by a wheel speed sensor and a radio frequency signal which is transmitted by a tire pressure sensor and meets a preset condition;
analyzing the radio frequency signal to obtain a second wheel speed value detected by the tire pressure sensor;
determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value;
and performing tire pressure learning based on the determined distribution position of the tire pressure sensor.
2. The method of claim 1, wherein the first wheel speed value comprises a plurality of first sub-wheel speed values and the second wheel speed value comprises a plurality of second sub-wheel speed values, and wherein determining the distributed location of the tire pressure sensor based on the first wheel speed value and the second wheel speed value comprises:
if a plurality of second sub wheel speed values in the second wheel speed values are the same as a plurality of first sub wheel speed values in the first wheel speed values, monitoring the running state of the vehicle;
when the vehicle is monitored to turn and run, respectively determining the distribution position of each wheel speed sensor according to the difference value of the plurality of first sub wheel speed values, wherein each first sub wheel speed value corresponds to the distribution position of one wheel speed sensor;
The distribution position of the wheel speed sensor corresponding to each first sub-wheel speed value is determined as the distribution position of the tire pressure sensor corresponding to a second sub-wheel speed value which is the same as the first sub-wheel speed value.
3. The method of claim 2, wherein monitoring the driving condition of the vehicle if the plurality of second wheel speed values and the plurality of first wheel speed values are the same comprises:
and if the plurality of second sub-wheel speed values in the second wheel speed values and the plurality of first sub-wheel speed values in the first wheel speed values are detected to be the same at intervals of a preset period and continuous preset times, monitoring the running state of the vehicle.
4. The method of claim 2, wherein determining the distributed location of the tire pressure sensors based on the first wheel speed value and the second wheel speed value further comprises:
when the distribution positions of the tire pressure sensors determined according to the first wheel speed value and the second wheel speed value within the continuous preset times are the same, tire pressure learning is carried out based on the determined distribution positions of the tire pressure sensors;
when the distribution position of the tire pressure sensor determined according to the first wheel speed value and the second wheel speed value is different from the distribution position of the tire pressure sensor determined at the previous time, the distribution position of the tire pressure sensor is determined again according to the first wheel speed value and the second wheel speed value, and the number of times is recalculated.
5. The method of claim 1, wherein the interpreting the radio frequency signal comprises:
when the first wheel speed value is larger than a preset wheel speed threshold value, analyzing the radio frequency signal;
when the first wheel speed value is not larger than the preset wheel speed threshold value, the first wheel speed value and the radio frequency signal are obtained again.
6. The method of claim 1, further comprising:
and when the radio frequency signal which is transmitted by the tire pressure sensor and meets the preset condition is not acquired, the first wheel speed value is transmitted to the tire pressure controller, so that the tire pressure controller can learn the tire pressure based on the first wheel speed value.
7. The method according to any one of claims 1 to 6, wherein the preset condition is that the radio frequency signal with the frequency meeting a preset frequency interval is received with a preset frequency precision within a preset time period or a preset mileage range.
8. A tire pressure learning device, comprising:
the tire pressure learning and starting system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for responding to a tire pressure learning and starting request, and acquiring a first wheel speed value detected by a wheel speed sensor and a radio frequency signal which is transmitted by a tire pressure sensor and meets a preset condition;
The analysis module is used for analyzing the radio frequency signal when the first wheel speed value is larger than a wheel speed threshold value to obtain a second wheel speed value detected by the tire pressure sensor;
the determining module is used for determining the distribution position of the tire pressure sensor according to the first wheel speed value and the second wheel speed value;
and the learning module is used for learning the tire pressure based on the determined distribution position of the tire pressure sensor.
9. A vehicle, characterized by comprising:
a vehicle body;
an in-vehicle host connected to the vehicle body, the in-vehicle host including a memory and a processor, one or more applications, wherein the one or more applications are stored in the memory and configured to cause the processor to perform the tire pressure learning method according to any one of claims 1 to 7 when invoked by the processor.
10. A computer-readable storage medium, characterized in that a program code is stored therein, which program code, when invoked by a processor, is configured to cause the processor to carry out the tire pressure learning method according to any one of claims 1 to 7.
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