CN115009050B - Wireless charging protection method and device for vehicle, storage medium and wireless charging vehicle - Google Patents
Wireless charging protection method and device for vehicle, storage medium and wireless charging vehicle Download PDFInfo
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- CN115009050B CN115009050B CN202210637101.4A CN202210637101A CN115009050B CN 115009050 B CN115009050 B CN 115009050B CN 202210637101 A CN202210637101 A CN 202210637101A CN 115009050 B CN115009050 B CN 115009050B
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- 238000004364 calculation method Methods 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims description 45
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- 230000004044 response Effects 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 11
- 238000010835 comparative analysis Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 18
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wireless charging protection method and device for a vehicle, a storage medium and a wireless charging vehicle. The method comprises the steps of firstly obtaining wireless charging calibration data, first coil temperature and target impedance of a target vehicle, further obtaining second coil temperature of the target vehicle through calculation based on the wireless charging calibration data and the target impedance, and finally carrying out wireless charging adjustment on the target vehicle according to the first coil temperature and the second coil temperature to obtain a target charging result. The invention solves the technical problems of low detection accuracy and poor reliability of the method for carrying out wireless charging protection by detecting the temperature of the vehicle-mounted coil in the prior art.
Description
Technical Field
The invention relates to the field of new energy vehicles, in particular to a vehicle wireless charging protection method, device, storage medium and wireless charging vehicle.
Background
In the field of new energy vehicles, wireless charging technology is increasingly used. In the wireless charging process of the vehicle, the area of a coil receiving electric energy is large, and the coil can be heated by current through the coil, so that charging is not safe enough when the coil is overheated.
In the related art, the method for performing charge protection on the wireless charging vehicle mainly includes: the temperature sensor is embedded in the coil, the temperature of the coil obtained by the temperature sensor is detected, and then the system is adjusted according to the temperature so as to protect the coil. However, this method has drawbacks in that: the mode of embedding the temperature sensor has larger resource consumption; the wireless charging abnormality detection accuracy is low (such as the situation that a limited number of temperature sensors cannot effectively identify local overheating of a coil), and the reliability of wireless charging protection of the system is low.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a wireless charging protection method and device for a vehicle, a storage medium and a wireless charging vehicle, which at least solve the technical problems of low detection accuracy and poor reliability of the wireless charging protection method by detecting the temperature of a vehicle-mounted coil in the prior art.
According to an aspect of an embodiment of the present invention, there is provided a vehicle wireless charging protection method including:
Acquiring wireless charging calibration data of a target vehicle, a first coil temperature and target impedance, wherein the wireless charging calibration data is used for determining wireless charging state information obtained by testing when the whole target vehicle is off line, the first coil temperature is used for representing real-time coil temperature of wireless charging of the target vehicle, and the target impedance is used for representing real-time system equivalent impedance of wireless charging of the target vehicle; calculating a second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance, wherein the second coil temperature is used for representing an expected coil temperature for wireless charging; and according to the first coil temperature and the second coil temperature, performing wireless charging adjustment on the target vehicle to obtain a target charging result.
Optionally, the wireless charging calibration data includes: the system comprises a calibration coil temperature and a calibration impedance corresponding to the target vehicle, wherein the calibration coil temperature is the coil temperature when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test, and the calibration impedance is the system equivalent impedance when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test.
Optionally, acquiring the first coil temperature and the target impedance of the target vehicle includes: acquiring a first coil temperature by using a coil temperature sensor of a target vehicle; acquiring real-time voltage data of a coil by using a voltage detector of a target vehicle; acquiring real-time current data of a coil by using a current detector of a target vehicle; and calculating based on the coil real-time voltage data and the coil real-time current data to obtain target impedance.
Optionally, calculating the second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance includes: determining a target corresponding relation of a target vehicle based on the calibration coil temperature and the calibration impedance in the wireless charging calibration data, wherein the target corresponding relation is used for determining the corresponding relation between the coil temperature of the target vehicle and the equivalent impedance of the system; and determining the second coil temperature of the target vehicle corresponding to the target impedance according to the target corresponding relation.
Optionally, according to the first coil temperature and the second coil temperature, performing wireless charging adjustment on the target vehicle, and obtaining the target charging result includes: comparing and analyzing based on a first preset threshold value, a second preset threshold value, a first coil temperature and a second coil temperature to obtain wireless charging adjustment information, wherein the first preset threshold value is used for determining a safe value range of the coil temperature when a target vehicle is subjected to wireless charging, and the second preset threshold value is used for determining a safe difference value range between the real-time coil temperature and an expected coil temperature when the target vehicle is subjected to wireless charging; and according to the wireless charging adjustment information, performing wireless charging adjustment on the target vehicle to obtain a target charging result.
Optionally, performing comparison analysis based on the first preset threshold, the second preset threshold, the first coil temperature and the second coil temperature, and obtaining the wireless charging adjustment information includes: generating first adjustment information in response to the first coil temperature not being smaller than a first preset threshold, wherein the first adjustment information is used for determining to reduce wireless charging power of a target vehicle corresponding to the first coil temperature according to a first preset adjustment rule; responding to the fact that the first coil temperature is smaller than a first preset threshold value, and performing difference analysis on the first coil temperature and the second coil temperature according to a second preset threshold value to generate a difference analysis result; and obtaining wireless charging adjustment information according to the first adjustment information and the difference analysis result.
Optionally, performing a difference analysis on the first coil temperature and the second coil temperature according to a second preset threshold, and generating a difference analysis result includes: calculating the difference between the first coil temperature and the second coil temperature to obtain a calculation result; generating second adjustment information in response to the calculation result not smaller than a second preset threshold, wherein the second adjustment information is used for determining to reduce wireless charging power of the target vehicle corresponding to the first coil temperature according to a second preset adjustment rule; generating holding information in response to the calculation result being smaller than a second preset threshold, wherein the holding information is used for determining that the target vehicle is in a wireless charging safety state without wireless charging adjustment; and determining a difference analysis result according to the second adjustment information and the holding information.
According to one embodiment of the present invention, there is also provided a wireless charging protection device for a vehicle, including:
The system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring wireless charging calibration data of a target vehicle, a first coil temperature and target impedance, wherein the wireless charging calibration data are used for determining wireless charging state information obtained by testing when the whole target vehicle is off line, the first coil temperature is used for representing real-time coil temperature of wireless charging of the target vehicle, and the target impedance is used for representing real-time system equivalent impedance of wireless charging of the target vehicle.
And the calculation module is used for calculating a second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance, wherein the second coil temperature is used for representing an expected coil temperature for wireless charging.
And the adjusting module is used for carrying out wireless charging adjustment on the target vehicle according to the first coil temperature and the second coil temperature to obtain a target charging result.
Optionally, in the vehicle wireless charging protection device, the wireless charging calibration data includes: the system comprises a calibration coil temperature and a calibration impedance corresponding to the target vehicle, wherein the calibration coil temperature is the coil temperature when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test, and the calibration impedance is the system equivalent impedance when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test.
Optionally, the acquiring module is further configured to acquire the first coil temperature using a coil temperature sensor of the target vehicle; acquiring real-time voltage data of a coil by using a voltage detector of a target vehicle; acquiring real-time current data of a coil by using a current detector of a target vehicle; and calculating based on the coil real-time voltage data and the coil real-time current data to obtain target impedance.
Optionally, the calculation module is further configured to determine a target corresponding relationship of the target vehicle based on the calibration coil temperature and the calibration impedance in the wireless charging calibration data, where the target corresponding relationship is used to determine a corresponding relationship between the coil temperature of the target vehicle and the equivalent impedance of the system; and determining the second coil temperature of the target vehicle corresponding to the target impedance according to the target corresponding relation.
Optionally, the adjustment module is further configured to perform comparison analysis based on a first preset threshold, a second preset threshold, a first coil temperature and a second coil temperature, to obtain wireless charging adjustment information, where the first preset threshold is used to determine a safe value range of the coil temperature when the target vehicle performs wireless charging, and the second preset threshold is used to determine a safe difference value range between the real-time coil temperature and the expected coil temperature when the target vehicle performs wireless charging; and according to the wireless charging adjustment information, performing wireless charging adjustment on the target vehicle to obtain a target charging result.
Optionally, the adjusting module is further configured to generate first adjusting information in response to the first coil temperature being not less than a first preset threshold, where the first adjusting information is used to determine to reduce wireless charging power of the target vehicle corresponding to the first coil temperature according to a first preset adjusting rule; responding to the fact that the first coil temperature is smaller than a first preset threshold value, and performing difference analysis on the first coil temperature and the second coil temperature according to a second preset threshold value to generate a difference analysis result; and obtaining wireless charging adjustment information according to the first adjustment information and the difference analysis result.
Optionally, the adjusting module is further configured to calculate a difference between the first coil temperature and the second coil temperature to obtain a calculation result; generating second adjustment information in response to the calculation result not smaller than a second preset threshold, wherein the second adjustment information is used for determining to reduce wireless charging power of the target vehicle corresponding to the first coil temperature according to a second preset adjustment rule; generating holding information in response to the calculation result being smaller than a second preset threshold, wherein the holding information is used for determining that the target vehicle is in a wireless charging safety state without wireless charging adjustment; and determining a difference analysis result according to the second adjustment information and the holding information.
According to one embodiment of the present invention, there is also provided a nonvolatile storage medium, characterized in that the storage medium has stored therein a computer program, wherein the computer program is configured to execute the vehicle wireless charging protection method in any one of the above-mentioned claims when running.
According to an embodiment of the present invention, there is further provided a wireless charging vehicle including an on-board memory and an on-board processor, wherein the on-board memory is configured to store a program, and the on-board processor is configured to execute the program, wherein the program is configured to execute the vehicle wireless charging protection method of any one of the above.
According to the embodiment of the invention, the second coil temperature of the target vehicle is calculated based on the wireless charging calibration data, the first coil temperature and the target impedance by acquiring the wireless charging calibration data, the first coil temperature and the target impedance of the target vehicle, so that the target vehicle is subjected to wireless charging adjustment according to the first coil temperature and the second coil temperature to obtain a target charging result, the purpose of wireless charging protection based on the coil temperature of the wireless charging vehicle and the equivalent impedance of the system is achieved, the technical effects of accurately identifying wireless charging abnormality and improving the reliability of a wireless charging protection system with lower cost are achieved, and the technical problems of low detection accuracy and poor reliability of a method for wireless charging protection by detecting the vehicle-mounted coil temperature in the prior art are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a flow chart of a method of vehicle wireless charging protection according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a process for implementing wireless charging protection for a vehicle according to one embodiment of the invention;
FIG. 3 is a schematic illustration of a wireless charging protection method for a vehicle according to one embodiment of the present invention;
Fig. 4 is a block diagram of a wireless charging protection device for a vehicle according to one embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an embodiment of the present invention, there is provided a vehicle wireless charging protection method embodiment, it being noted that the steps shown in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order other than that shown or described herein.
Fig. 1 is a flowchart of a method for protecting wireless charging of a vehicle according to one embodiment of the present invention, as shown in fig. 1, the method includes the steps of:
Step S11, wireless charging calibration data, a first coil temperature and target impedance of a target vehicle are obtained, wherein the wireless charging calibration data are used for determining wireless charging state information obtained by testing when the whole target vehicle is off line, the first coil temperature is used for representing real-time coil temperature of wireless charging of the target vehicle, and the target impedance is used for representing real-time system equivalent impedance of wireless charging of the target vehicle;
Step S12, calculating to obtain a second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance, wherein the second coil temperature is used for representing an expected coil temperature for wireless charging;
and step S13, performing wireless charging adjustment on the target vehicle according to the first coil temperature and the second coil temperature to obtain a target charging result.
In step S11, in the wireless charging process of the target vehicle, the test mode of the coil temperature and the system equivalent impedance may be a whole vehicle on-line mode or a whole vehicle off-line mode.
Specifically, the whole vehicle on-line test mode is as follows: in the wireless charging process of the target vehicle, the coil temperature and the equivalent impedance of the system are tested in real time. In the whole vehicle on-line test mode, the coil temperature is also called a first coil temperature, and the system equivalent impedance is also called a target impedance. The first coil temperature represents the real-time coil temperature of the target vehicle for wireless charging, and similarly, the target impedance represents the equivalent impedance of the real-time system of the target vehicle for wireless charging. For example, the system sets a certain time period to test the coil temperature and the equivalent impedance of the system for the target vehicle being charged wirelessly, wherein the certain time period is set by the designer according to the actual situation.
Specifically, the whole vehicle off-line test mode is as follows: during the wireless charging of the target vehicle, the target vehicle is charged at rated power and tested during the process. In the whole car off-line test mode, the coil temperature is also called a calibration coil temperature, and the system equivalent impedance is also called a calibration impedance. The nominal coil temperature represents the coil temperature when the target vehicle is charged at rated power, and the nominal impedance represents the equivalent impedance of the system when the target vehicle is charged at rated power. For example, the whole vehicle off-line detection mode is usually to perform a test by first wirelessly charging a target vehicle.
The wireless charging calibration data comprises the calibration coil temperature and the calibration impedance of the target vehicle. And the wireless charging state information represents the target corresponding relation of the target vehicle. The target correspondence of the target vehicle is used for determining the correspondence between the calibration coil temperature and the calibration impedance, namely the correspondence between the coil temperature of the target vehicle and the equivalent impedance of the system. For example, the target correspondence of the target vehicle adopts a ratio method.
In step S12, a target correspondence of the target vehicle is obtained based on the wireless charging calibration data. And substituting the target impedance into the target corresponding relation according to the target corresponding relation of the target vehicle, and taking the obtained temperature value as the second coil temperature. The second coil temperature represents the expected coil temperature of the target vehicle for wireless charging, namely, represents the theoretical value of the coil temperature of the target impedance under the target corresponding relation of the target vehicle. The first coil temperature represents a real-time coil temperature at which the target vehicle is wirelessly charged, that is, an actual coil temperature at which the target vehicle is wirelessly charged.
In step S13, the actual coil temperature and the target impedance are substituted into the theoretical coil temperature obtained in the target correspondence relationship of the target vehicle according to the first coil temperature and the second coil temperature, that is, according to the target vehicle when wireless charging is performed. And according to the first coil temperature and the second coil temperature, performing wireless charging adjustment on the target vehicle to obtain a target charging result. And adjusting the wireless charging of the target vehicle, wherein the adjustment is needed and the adjustment is not needed, the wireless charging power of the target vehicle is reduced to continue charging, and the original wireless charging power of the target vehicle is kept to continue charging without the adjustment.
According to the steps S11 to S13, the wireless charging calibration data, the first coil temperature and the target impedance of the target vehicle are obtained, and then the second coil temperature of the target vehicle is obtained through calculation based on the wireless charging calibration data and the target impedance, so that the target vehicle is subjected to wireless charging adjustment according to the first coil temperature and the second coil temperature to obtain a target charging result, the purpose of wireless charging protection based on the coil temperature of the wireless charging vehicle and the equivalent impedance of the system is achieved, the technical effects of accurately identifying wireless charging abnormality and improving the reliability of a wireless charging protection system with lower cost are achieved, and the technical problems of low detection accuracy and poor reliability of a method for wireless charging protection by detecting the vehicle-mounted coil temperature in the prior art are solved.
Optionally, the vehicle wireless charging protection method includes: the wireless charging calibration data comprises a calibration coil temperature and a calibration impedance corresponding to the target vehicle, wherein the calibration coil temperature is the coil temperature when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test, and the calibration impedance is the system equivalent impedance when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test.
Optionally, in step S11, the acquiring the first coil temperature and the target impedance of the target vehicle further comprises the method steps of:
step S111, acquiring a first coil temperature by using a coil temperature sensor of a target vehicle;
step S112, acquiring real-time voltage data of a coil by using a voltage detector of a target vehicle;
Step S113, acquiring real-time current data of a coil by using a current detector of a target vehicle;
Step S114, calculating based on the coil real-time voltage data and the coil real-time current data to obtain the target impedance.
In steps S111 to S114, the target vehicle obtains the first coil temperature, the coil real-time voltage data and the coil real-time current data through the coil temperature sensor, the voltage detector and the current detector of the target vehicle during the wireless charging. And calculating based on the coil real-time voltage data and the coil real-time current data to obtain target impedance representing the equivalent impedance of the real-time system. For example, z=u/I, where Z represents the system equivalent impedance, U represents the coil output voltage, and I represents the coil output current. Substituting the real-time voltage data of the coil and the real-time current data of the coil into the Z=U/I to obtain target impedance.
According to the steps S111 to S114, the first coil temperature, the coil real-time voltage data and the coil real-time current data are obtained, and then calculation is carried out according to the coil real-time voltage data and the coil real-time current data, so that the purpose of obtaining target impedance representing equivalent impedance of a real-time system is achieved, the technical effect of obtaining the second coil temperature by carrying out subsequent calculation by utilizing the target impedance is achieved, and the technical problem that detection accuracy is low in the traditional method for identifying whether the target vehicle coil temperature has overheat abnormality is solved.
Optionally, in step S12, calculating the second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance further includes the following method steps:
Step S121, determining a target corresponding relation of a target vehicle based on a calibration coil temperature and a calibration impedance in wireless charging calibration data, wherein the target corresponding relation is used for determining the corresponding relation between the coil temperature of the target vehicle and the equivalent impedance of the system;
step S122, determining the second coil temperature of the target vehicle corresponding to the target impedance according to the target corresponding relation.
In step S121, a target correspondence relationship of the target vehicle is determined based on the calibration coil temperature and the calibration impedance. The target correspondence of the target vehicle is used for determining the correspondence between the calibration coil temperature and the calibration impedance, namely the correspondence between the coil temperature of the target vehicle and the equivalent impedance of the system.
In step S122, the target impedance is substituted into the target correspondence relationship according to the target correspondence relationship of the target vehicle, and the obtained temperature value is used as the second coil temperature.
Through steps S121 to S122, the corresponding relation between the target impedance and the calibration coil temperature is obtained through the calibration coil temperature and the calibration impedance, and then the purpose of obtaining the second coil temperature is achieved according to the corresponding relation between the target impedance and the calibration coil temperature and the calibration impedance, so that the technical effect of obtaining the adjustment information of the target vehicle in the subsequent comparison of the second coil temperature and the first coil temperature is achieved, and the technical problem of insufficient wireless charging protection of the vehicle-mounted coil is solved.
Optionally, in step S13, the wireless charging adjustment is performed on the target vehicle according to the first coil temperature and the second coil temperature, so as to obtain a target charging result, and further includes the following method steps:
Step S131, comparing and analyzing based on a first preset threshold, a second preset threshold, a first coil temperature and a second coil temperature to obtain wireless charging adjustment information, wherein the first preset threshold is used for determining a safe value range of the coil temperature when a target vehicle is in wireless charging, and the second preset threshold is used for determining a safe difference value range between the real-time coil temperature and an expected coil temperature when the target vehicle is in wireless charging;
step S132, according to the wireless charging adjustment information, wireless charging adjustment is performed on the target vehicle, and a target charging result is obtained.
In step S131, the wireless charging adjustment information is obtained through a comparison analysis of the first coil temperature and a first preset threshold value, a difference analysis between the first coil temperature and the second coil temperature, and a comparison analysis of the difference analysis and a second preset threshold value. The first preset threshold value is compared with the first coil temperature and is used for determining a safe value range of the coil temperature when the target vehicle is in wireless charging. The second preset threshold value is compared with the difference value between the first coil temperature and the second coil temperature and is used for determining a safe difference value range between the real-time coil temperature and the expected coil temperature when the target vehicle is in wireless charging.
In step S132, wireless charging adjustment is performed on the target vehicle according to the wireless charging adjustment information, so as to obtain a target charging result. And adjusting the wireless charging of the target vehicle, wherein the adjustment is needed and the adjustment is not needed, the wireless charging power of the target vehicle is reduced to continue charging, and the original wireless charging power of the target vehicle is kept to continue charging without the adjustment.
Through the steps S131 to S132, the purpose of obtaining wireless charging adjustment information is achieved through the comparison analysis of the first coil temperature and the first preset threshold value and the difference analysis between the first coil temperature and the second coil temperature and the comparison analysis of the difference analysis and the second preset threshold value, so that the technical effect that a target vehicle can be correspondingly adjusted according to the wireless charging adjustment information is achieved, and the technical problem that safety is insufficient in the process of obtaining a target charging result by the target vehicle is solved.
Optionally, in step S131, the comparing and analyzing based on the first preset threshold, the second preset threshold, the first coil temperature and the second coil temperature to obtain the wireless charging adjustment information further includes the following method steps:
Step S1311, generating first adjustment information in response to the first coil temperature not being less than a first preset threshold, where the first adjustment information is used to determine to reduce wireless charging power of the target vehicle corresponding to the first coil temperature according to a first preset adjustment rule;
step S1312, in response to the first coil temperature being less than a first preset threshold, performing a difference analysis on the first coil temperature and the second coil temperature according to a second preset threshold to generate a difference analysis result;
step S1313, obtaining wireless charging adjustment information according to the first adjustment information and the difference analysis result.
In step S1311, when the first coil temperature is not less than a first preset threshold, first adjustment information is generated. And the first adjustment information is used for determining to reduce the wireless charging power of the target vehicle according to a first preset adjustment rule. The first preset adjustment rule is that the wireless charging power of the target vehicle is reduced until the temperature of the first coil of the target vehicle is reduced to a certain level. After the target vehicle adjusts the target vehicle according to the first preset adjustment rule, the process goes to step S1312. For example, the first preset adjustment rule is that the wireless charging power of the target vehicle is reduced until the temperature of the first coil of the target vehicle is reduced to be below a recovery threshold value, and the specific value of the recovery threshold value is set by a designer according to the actual situation. Typically, the recovery threshold is less than a first preset threshold.
In step S1312, when the first coil temperature is less than the first preset threshold, a difference analysis between the first coil temperature and the second coil temperature is obtained by comparing the first coil temperature and the second coil temperature, and then the difference analysis is compared with the second preset threshold to generate a difference analysis result.
In step S1313, wireless charging adjustment information is obtained according to the first adjustment information and the difference analysis result. The wireless charging adjustment information comprises two types of information which need to be adjusted and do not need to be adjusted, wherein the wireless charging power of the target vehicle is reduced to continue charging when the information needs to be adjusted, and the original wireless charging power of the target vehicle is kept to continue charging when the information does not need to be adjusted.
Through steps S1311 to S1313, a difference is generated by comparing the first coil temperature with a first preset threshold value and comparing the first coil temperature with the second coil temperature, and then comparing the difference with a second preset threshold value, so that the purpose of obtaining wireless charging adjustment information of the target vehicle is achieved, the technical effect of adjusting the subsequent target vehicle according to the wireless charging adjustment information is achieved, and the technical problem that wireless charging of the vehicle-mounted coil is not safe enough is solved.
Optionally, in step S1312, the difference analysis is performed on the first coil temperature and the second coil temperature according to a second preset threshold, and the generating a difference analysis result further includes the following method steps:
Step S13121, calculating a difference between the first coil temperature and the second coil temperature to obtain a calculation result;
Step S13122, generating second adjustment information in response to the calculation result being not less than the second preset threshold, where the second adjustment information is used to determine to reduce the wireless charging power of the target vehicle corresponding to the first coil temperature according to the second preset adjustment rule;
Step S13123, generating holding information in response to the calculation result being smaller than the second preset threshold, wherein the holding information is used for determining that the target vehicle is in a wireless charging safety state without wireless charging adjustment;
Step S13124, determining a difference analysis result according to the second adjustment information and the holding information.
In step S13121, a difference between the first coil temperature and the second coil temperature is calculated.
In step S13122, when the difference between the first coil temperature and the second coil temperature is not less than the second preset threshold, second adjustment information is generated. And the second adjustment information is used for determining to reduce the wireless charging power of the target vehicle according to a second preset adjustment rule. And a second preset regulation rule is adopted, and the wireless charging power of the target vehicle is reduced until the difference value between the first coil temperature and the second coil temperature of the target vehicle is smaller than a second preset threshold value.
In step S13123, when the difference between the first coil temperature and the second coil temperature is smaller than the second preset threshold, hold information is generated. And maintaining information for determining that the target vehicle is in a safe state of wireless charging, and no wireless charging adjustment is needed.
In step S13124, the difference between the first coil temperature and the second coil temperature is determined according to the second adjustment information and the holding information, and the difference is compared with a second preset threshold to generate a difference analysis result. The difference analysis result is the second adjustment information or the holding information.
Through steps S13121 to S13124, the difference between the first coil temperature and the second coil temperature is calculated, and then the difference is compared with a second preset threshold value, and a difference analysis result of second adjustment information or holding information is obtained through the comparison result, so that the technical effect that the target vehicle is correspondingly adjusted by the subsequent target vehicle according to the difference analysis result is achieved, and the technical problem that wireless charging of the vehicle-mounted coil is not safe enough is solved.
Fig. 2 is a schematic diagram of a wireless charging protection process for a vehicle according to one embodiment of the present invention, as shown in fig. 2:
optionally, the vehicle wireless charging protection process involves: primary side components (power transmitting coils), vehicle components and power cells.
A primary side assembly (e.g., a power transmitting coil) for generating power.
And the vehicle-mounted component comprises a secondary side component (such as a power receiving coil), a vehicle-mounted power component and a vehicle-mounted communication control component.
The in-vehicle power assembly further includes: the device comprises a voltage detection component, a current detection component, a temperature detection component, a rectifying component and a control driving component.
A secondary side assembly (e.g., a power receiving coil) for receiving wireless power transmissions from the primary side assembly.
The voltage detection component is used for detecting the voltage of the secondary side component.
And the current detection component is used for detecting the secondary side component current.
And the temperature detection component is used for detecting the temperature of the coil of the secondary side component.
And the rectifying component is used for obtaining voltage and current values through the voltage detection component and the current detection component and calculating to obtain the equivalent impedance of the system.
The control driving assembly is used for acquiring the voltage, the current and the coil temperature of the secondary side assembly obtained from the voltage detection assembly, the current detection assembly and the temperature detection assembly; and is also used to obtain the system equivalent impedance in the rectifying component.
And the vehicle-mounted communication control assembly is used for acquiring and controlling voltage, current, coil temperature and system equivalent impedance information in the driving assembly.
And the vehicle-mounted communication control assembly calculates and obtains the corresponding relation between the coil temperature and the system equivalent impedance in the wireless charging process for the first time in the off-line test of the whole vehicle, and downloads the coil temperature and the system equivalent impedance at the moment into the vehicle-mounted communication control assembly as wireless charging calibration data. And (3) wireless charging calibration data, wherein the coil temperature is used as the calibration coil temperature, and the equivalent impedance of the system is used as the calibration impedance.
And the vehicle-mounted communication control assembly downloads a first preset threshold value and a second preset threshold value which are set by a designer.
And the vehicle-mounted communication control assembly takes the coil temperature and the system equivalent impedance obtained by controlling the driving assembly as the first coil temperature and the target impedance in the whole vehicle on-line test, namely non-primary wireless charging, namely wireless charging again. Substituting the corresponding relation between the calibration coil temperature and the calibration impedance in the wireless charging calibration data into the target impedance to obtain a second coil temperature of the target impedance under the corresponding relation. Comparing the first coil temperature with a first preset threshold, and when the first coil temperature is not smaller than the first preset threshold, performing power-down operation until the first coil temperature is reduced below a safety threshold, and then comparing the difference between the first coil temperature and the second coil temperature with a second preset threshold, wherein the safety threshold is usually smaller than the first preset threshold and is set by a designer according to actual conditions; when the first coil temperature is smaller than a first safety threshold, calculating a difference value between the first coil temperature and the second coil temperature, comparing the difference value with a second preset threshold, when the difference value is not smaller than the second preset threshold, operating the power until the difference value is smaller than the second preset threshold, and when the difference value is smaller than the second preset threshold, keeping the original power to continue to operate without adjustment.
And the power battery is used for storing electric energy obtained by wireless charging of the secondary side assembly from the primary side assembly.
Fig. 3 is a schematic diagram of a specific case of a wireless charging protection method for a vehicle according to an embodiment of the present invention, as shown in fig. 3, the method includes the following steps:
Optionally, in the vehicle wireless charging protection method, T1 is a first coil temperature, T2 is a second coil temperature, TP is a coil over-temperature protection threshold, the first preset threshold corresponds to the first preset threshold, the error maximum corresponds to the second preset threshold, and TH is a safety threshold.
Optionally, according to the practical application scenario, the TP is preset to 100 ℃, the maximum error is preset to 5 ℃ and TH is preset to 95 ℃.
Step S31, judging whether the system is started for the first time, and turning to step S32 when the system is started for the first time, and turning to step S33 when the system is started for the second time.
Step S32, a wireless charging function is started for the first time, a target corresponding relation between the temperature T of the calibration coil and the calibration impedance Z is determined, and the T and the Z are used as wireless charging calibration data to be downloaded to the vehicle-mounted communication control assembly.
Step S33, the wireless charging function is started again, and the system outputs according to rated power. The vehicle-mounted communication control assembly acquires the first coil temperature T1, the target impedance Z1, inquires wireless charging calibration data, and substitutes Z1 according to the target corresponding relation of T and Z to obtain a second coil temperature T2 corresponding to Z1.
In step S34, it is determined whether T1 is smaller than TP, T1 is not smaller than TP to step S35, and T1 is smaller than TP to step S37.
Step S35, reducing the system power.
Step S36, if T1 is smaller than TH, T1 is not smaller than TH, go to step S35, T1 is smaller than TH, go to step S37.
Step S37, judging whether the difference between T1 and T2 is smaller than the maximum error value, wherein the difference between T1 and T2 is not smaller than the maximum error value, turning to step S38, wherein the difference between T1 and T2 is smaller than the maximum error value, and the system is not adjusted, and the charging is finished.
Step S38, reducing the system power.
When the whole vehicle is subjected to wireless charging for the first time, the temperature T and the calibration impedance Z of a calibration coil of the system are obtained, and the T and the Z are used as wireless charging calibration data to be downloaded to the vehicle-mounted communication control assembly. When the whole vehicle is charged again in a wireless manner, the vehicle-mounted communication control assembly acquires the first coil temperature T1 and the real-time system equivalent impedance Z1 through the control driving assembly, and substitutes Z1 according to the target corresponding relation between T and Z to acquire the second coil temperature T2 corresponding to Z1. When T1 is less than 100 ℃ and the difference between T1 and T2 is less than 5 ℃ of the maximum error, the system works normally. When T1 is not less than 100 ℃, the vehicle-mounted communication control component control system increases the temperature of the coil by 1 ℃ and reduces the output power by 1kW until T1 is less than TH, namely 95 ℃. When the difference between T1 and T2 is larger than the error maximum value of 5 ℃, the control system of the vehicle-mounted communication control assembly increases the temperature of the coil by 1 ℃ and reduces the output power by 1kW until the difference between T1 and T2 is smaller than the error maximum value of 5 ℃.
Fig. 4 is a block diagram of a wireless charging protection device for a vehicle according to an embodiment of the present invention, and as shown in fig. 4, the wireless charging protection device 400 for a vehicle includes:
the obtaining module 401 is configured to obtain wireless charging calibration data of the target vehicle, a first coil temperature, and a target impedance, where the wireless charging calibration data is used to determine wireless charging state information obtained by testing when the entire target vehicle is off-line, the first coil temperature is used to represent a real-time coil temperature of the target vehicle for wireless charging, and the target impedance is used to represent a real-time system equivalent impedance of the target vehicle for wireless charging.
The calculating module 402 is configured to calculate, based on the wireless charging calibration data and the target impedance, a second coil temperature of the target vehicle, where the second coil temperature is used to represent an expected coil temperature for performing wireless charging.
And the adjusting module 403 is configured to perform wireless charging adjustment on the target vehicle according to the first coil temperature and the second coil temperature, so as to obtain a target charging result.
Optionally, in the vehicle wireless charging protection device, the wireless charging calibration data includes: the system comprises a calibration coil temperature and a calibration impedance corresponding to the target vehicle, wherein the calibration coil temperature is the coil temperature when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test, and the calibration impedance is the system equivalent impedance when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test.
Optionally, the obtaining module 401 is further configured to obtain, with a coil temperature sensor of the target vehicle, a first coil temperature; acquiring real-time voltage data of a coil by using a voltage detector of a target vehicle; acquiring real-time current data of a coil by using a current detector of a target vehicle; and calculating based on the coil real-time voltage data and the coil real-time current data to obtain target impedance.
Optionally, the calculating module 402 is further configured to determine a target correspondence of the target vehicle based on the calibration coil temperature and the calibration impedance in the wireless charging calibration data, where the target correspondence is used to determine a correspondence between the coil temperature of the target vehicle and the equivalent impedance of the system; and determining the second coil temperature of the target vehicle corresponding to the target impedance according to the target corresponding relation.
Optionally, the adjusting module 403 is further configured to perform a comparison analysis based on a first preset threshold, a second preset threshold, a first coil temperature, and a second coil temperature, to obtain wireless charging adjustment information, where the first preset threshold is used to determine a safe value range of the coil temperature when the target vehicle performs wireless charging, and the second preset threshold is used to determine a safe difference value range between the real-time coil temperature and the expected coil temperature when the target vehicle performs wireless charging; and according to the wireless charging adjustment information, performing wireless charging adjustment on the target vehicle to obtain a target charging result.
Optionally, the adjusting module 403 is further configured to generate first adjustment information in response to the first coil temperature being not less than a first preset threshold, where the first adjustment information is used to determine to reduce the wireless charging power of the target vehicle corresponding to the first coil temperature according to a first preset adjustment rule; responding to the fact that the first coil temperature is smaller than a first preset threshold value, and performing difference analysis on the first coil temperature and the second coil temperature according to a second preset threshold value to generate a difference analysis result; and obtaining wireless charging adjustment information according to the first adjustment information and the difference analysis result.
Optionally, the adjusting module 403 is further configured to calculate a difference between the first coil temperature and the second coil temperature to obtain a calculation result; generating second adjustment information in response to the calculation result not smaller than a second preset threshold, wherein the second adjustment information is used for determining to reduce wireless charging power of the target vehicle corresponding to the first coil temperature according to a second preset adjustment rule; generating holding information in response to the calculation result being smaller than a second preset threshold, wherein the holding information is used for determining that the target vehicle is in a wireless charging safety state without wireless charging adjustment; and determining a difference analysis result according to the second adjustment information and the holding information.
It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; or the above modules may be located in different processors in any combination.
Embodiments of the present invention also provide a non-volatile storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the method embodiments described above when run.
Alternatively, in the present embodiment, the above-described nonvolatile storage medium may be configured to store a computer program for performing the steps of:
S1, acquiring wireless charging calibration data of a target vehicle, a first coil temperature and target impedance, wherein the wireless charging calibration data are used for determining wireless charging state information obtained by testing when the whole target vehicle is off line, the first coil temperature is used for representing real-time coil temperature of wireless charging of the target vehicle, and the target impedance is used for representing real-time system equivalent impedance of wireless charging of the target vehicle.
And S2, calculating to obtain a second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance, wherein the second coil temperature is used for representing the expected coil temperature for wireless charging.
And S3, performing wireless charging adjustment on the target vehicle according to the first coil temperature and the second coil temperature to obtain a target charging result.
Alternatively, in the present embodiment, the above-described nonvolatile storage medium may include, but is not limited to: a usb disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing a computer program.
The embodiment of the invention also provides a wireless charging vehicle, which comprises an on-board memory and an on-board processor, wherein the on-board memory is used for storing a program, and the on-board processor is used for running the program, and the program is set to execute the wireless charging protection method of the vehicle in any one of the above steps.
Alternatively, in the present embodiment, the above-described in-vehicle processor may be configured to execute the following steps by a computer program:
S1, acquiring wireless charging calibration data of a target vehicle, a first coil temperature and target impedance, wherein the wireless charging calibration data are used for determining wireless charging state information obtained by testing when the whole target vehicle is off line, the first coil temperature is used for representing real-time coil temperature of wireless charging of the target vehicle, and the target impedance is used for representing real-time system equivalent impedance of wireless charging of the target vehicle.
And S2, calculating to obtain a second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance, wherein the second coil temperature is used for representing the expected coil temperature for wireless charging.
And S3, performing wireless charging adjustment on the target vehicle according to the first coil temperature and the second coil temperature to obtain a target charging result.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present invention, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A method for protecting wireless charging of a vehicle, comprising:
Acquiring wireless charging calibration data, a first coil temperature and target impedance of a target vehicle, wherein the wireless charging calibration data are used for determining wireless charging state information obtained by testing when the whole target vehicle is off-line, the first coil temperature is used for representing real-time coil temperature of the target vehicle for wireless charging, and the target impedance is used for representing real-time system equivalent impedance of the target vehicle for wireless charging;
Calculating a second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance, wherein the second coil temperature is used for representing an expected coil temperature for wireless charging;
And according to the first coil temperature and the second coil temperature, performing wireless charging adjustment on the target vehicle to obtain a target charging result.
2. The method of claim 1, wherein the wireless charging calibration data comprises: the calibration coil temperature and the calibration impedance corresponding to the target vehicle are the coil temperature when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test, and the calibration impedance is the equivalent impedance of the system when the target vehicle is in wireless charging with rated power in the whole vehicle off-line test.
3. The method of claim 1, wherein obtaining a first coil temperature and a target impedance of a target vehicle comprises:
acquiring the first coil temperature by using a coil temperature sensor of the target vehicle;
Acquiring real-time voltage data of a coil by using a voltage detector of the target vehicle;
Acquiring coil real-time current data by using a current detector of the target vehicle;
And calculating based on the coil real-time voltage data and the coil real-time current data to obtain the target impedance.
4. The method of claim 2, wherein calculating a second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance comprises:
determining a target corresponding relation of the target vehicle based on the calibration coil temperature and the calibration impedance in the wireless charging calibration data, wherein the target corresponding relation is used for determining a corresponding relation between the coil temperature of the target vehicle and the equivalent impedance of a system;
And determining the second coil temperature of the target vehicle corresponding to the target impedance according to the target corresponding relation.
5. The method of claim 1, wherein performing wireless charging adjustment on the target vehicle based on the first coil temperature and the second coil temperature, obtaining a target charging result comprises:
Comparing and analyzing based on a first preset threshold value, a second preset threshold value, the first coil temperature and the second coil temperature to obtain wireless charging adjustment information, wherein the first preset threshold value is used for determining a safe value range of the coil temperature when the target vehicle is subjected to wireless charging, and the second preset threshold value is used for determining a safe difference value range between the real-time coil temperature and the expected coil temperature when the target vehicle is subjected to wireless charging;
And according to the wireless charging adjustment information, performing wireless charging adjustment on the target vehicle to obtain the target charging result.
6. The method of claim 5, wherein performing a comparative analysis based on the first preset threshold, the second preset threshold, the first coil temperature, and the second coil temperature, obtaining wireless charging adjustment information comprises:
generating first adjustment information in response to the first coil temperature being not less than the first preset threshold, wherein the first adjustment information is used for determining to reduce wireless charging power of the target vehicle corresponding to the first coil temperature according to a first preset adjustment rule;
Responding to the fact that the first coil temperature is smaller than the first preset threshold value, and performing difference analysis on the first coil temperature and the second coil temperature according to the second preset threshold value to generate a difference analysis result;
And obtaining the wireless charging adjustment information according to the first adjustment information and the difference analysis result.
7. The method of claim 6, wherein performing a difference analysis on the first coil temperature and the second coil temperature according to the second preset threshold, generating a difference analysis result comprises:
calculating the difference between the first coil temperature and the second coil temperature to obtain a calculation result;
Generating second adjustment information in response to the calculation result not smaller than the second preset threshold, wherein the second adjustment information is used for determining to reduce wireless charging power of the target vehicle corresponding to the first coil temperature according to a second preset adjustment rule;
generating holding information in response to the calculation result being smaller than the second preset threshold, wherein the holding information is used for determining that the target vehicle is in a wireless charging safety state without wireless charging adjustment;
And determining the difference analysis result according to the second adjustment information and the holding information.
8. A wireless charging protection device for a vehicle, comprising:
The system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring wireless charging calibration data of a target vehicle, a first coil temperature and target impedance, wherein the wireless charging calibration data are used for determining wireless charging state information obtained by testing when the whole target vehicle is off line, the first coil temperature is used for representing the real-time coil temperature of the target vehicle for wireless charging, and the target impedance is used for representing the real-time system equivalent impedance of the target vehicle for wireless charging;
The calculation module is used for calculating a second coil temperature of the target vehicle based on the wireless charging calibration data and the target impedance, wherein the second coil temperature is used for representing an expected coil temperature for wireless charging;
and the adjusting module is used for carrying out wireless charging adjustment on the target vehicle according to the first coil temperature and the second coil temperature to obtain a target charging result.
9. A non-volatile storage medium, characterized in that a computer program is stored in the storage medium, wherein the computer program is arranged to execute the vehicle wireless charging protection method as claimed in any one of claims 1 to 7 when run.
10. A wireless charging vehicle comprising an on-board memory and an on-board processor, wherein the on-board memory has stored therein a computer program, the on-board processor being arranged to run the computer program to perform the vehicle wireless charging protection method of any one of claims 1 to 7.
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| CN111200304A (en) * | 2018-11-20 | 2020-05-26 | 北京小米移动软件有限公司 | Temperature detection circuit, method and device of wireless charging coil and storage medium |
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| CN112319305A (en) * | 2020-10-10 | 2021-02-05 | 蔚来汽车科技(安徽)有限公司 | Safety monitoring method, monitoring system and device for vehicle |
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| CN111200304A (en) * | 2018-11-20 | 2020-05-26 | 北京小米移动软件有限公司 | Temperature detection circuit, method and device of wireless charging coil and storage medium |
| CN109927587A (en) * | 2019-03-12 | 2019-06-25 | 湖南秒冲新能源科技有限责任公司 | Intelligent charging method, rechargeable battery, charging system and computer storage medium |
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