CN-122016069-A - Temperature acquisition method, acquisition device, storage medium and electronic equipment

Abstract

The application discloses a temperature acquisition method, an acquisition device, a storage medium and electronic equipment. When the temperature of the target battery is acquired, initial voltage data of a sampling resistor in the target battery is acquired firstly, then the initial voltage data is compensated according to impedance data of battery connecting equipment to obtain target voltage data, further resistance data of the sampling resistor is determined according to the target voltage data, and then the battery temperature of the target battery is obtained according to the resistance data and target mapping data, wherein the target mapping data comprises at least one group of mapping relations between the resistance data and the temperature data. According to the application, the initial voltage data of the sampling resistor in the target battery can be compensated according to the impedance data of the battery connection equipment in a software layer, so that the compensation of the acquired temperature data of the target battery is realized, and the acquisition accuracy of the battery temperature is improved.

Inventors

• LI ZHENG

Assignees

• 上海安科联科技有限公司

Dates

Publication Date

20260512

Application Date

20260121

Claims (10)

1. 1. A method of temperature acquisition, the method comprising: Acquiring initial voltage data of a sampling resistor in a target battery; Compensating the initial voltage data according to impedance data of battery connection equipment connected with the target battery to obtain target voltage data; determining resistance data of the sampling resistor according to the target voltage data; And determining the battery temperature of the target battery according to the resistance data and target mapping data, wherein the target mapping data comprises at least one group of mapping relations between the resistance data and the temperature data.
2. 2. The method of claim 1, wherein compensating the initial voltage data based on impedance data of a battery connection device connected to the target battery to obtain target voltage data comprises: Acquiring current data of the target battery; Determining compensation voltage data of the sampling resistor according to the current data and the impedance data; and determining the target voltage data according to the compensation voltage data and the initial voltage data.
3. 3. The method according to claim 1, wherein the method further comprises: Determining a data identifier of the battery connection device in response to a temperature acquisition instruction for the target battery, wherein the data identifier is used for indicating a storage state of the impedance data; and determining the impedance data according to the data identification.
4. 4. A method according to claim 3, wherein said determining said impedance data from said data identification comprises: reading the impedance data from a database in the event that the data identification indicates the presence of the impedance data; and determining the impedance data according to the current change data and the voltage change data of the target battery in the condition that the data identification indicates that the impedance data does not exist.
5. 5. The method of claim 1, wherein after said determining the battery temperature of the target battery from the resistance data and target mapping data, the method further comprises: The cell temperature was filtered.
6. 6. The method of claim 5, wherein said filtering said battery temperature comprises: Determining an upper temperature threshold and a lower temperature threshold of the target battery; filtering out battery temperatures greater than the upper temperature threshold and/or less than the lower temperature threshold under the condition that filtering conditions are met; the filtering condition comprises that the change between the battery temperatures determined for the target battery is larger than or equal to a preset range in a first acquisition time.
7. 7. The method of claim 5, wherein said filtering said battery temperature comprises: Acquiring a temperature set corresponding to a second acquisition time, wherein the temperature set comprises the battery temperatures determined for the target battery in the second acquisition time; and carrying out average value processing on all the battery temperatures in the temperature set.
8. 8. A temperature acquisition device, the device comprising: The data acquisition module is configured to acquire initial voltage data of a sampling resistor in a target battery; the voltage compensation module is configured to compensate the initial voltage data according to the impedance data of battery connection equipment connected with the target battery to obtain target voltage data; A resistance determination module configured to determine resistance data of the sampling resistor from the target voltage data; And the temperature determining module is configured to determine the battery temperature of the target battery according to the resistance data and target mapping data, wherein the target mapping data comprises at least one group of mapping relations between the resistance data and the temperature data.
9. 9. A computer-readable storage medium, having stored thereon a computer program or instructions that are loaded by a processor to perform the steps in the temperature acquisition method according to any one of claims 1 to 7.
10. 10. An electronic device comprising a memory and a processor, the memory having stored therein a computer program or instructions that, when executed by the processor, cause the processor to perform the steps in the temperature acquisition method of any one of claims 1 to 7.

Description

Temperature acquisition method, acquisition device, storage medium and electronic equipment Technical Field The application relates to the technical field of battery temperature acquisition, in particular to a temperature acquisition method, an acquisition device, a storage medium and electronic equipment. Background The temperature data of the battery can be used for monitoring the operation state of the battery, or the operation mode of the battery can be adjusted according to the temperature data of the battery so as to prolong the service life of the battery. Therefore, how to obtain accurate battery temperature is a technical problem that the industry is currently dedicated to research. Disclosure of Invention The embodiment of the application provides a temperature acquisition method, an acquisition device, a storage medium and electronic equipment, which can improve the accuracy of battery temperature data acquisition so as to at least partially solve the technical problems. In order to achieve the above object, according to a first aspect of the present application, there is provided a temperature acquisition method, including obtaining initial voltage data of a sampling resistor in a target battery, compensating the initial voltage data according to impedance data of a battery connection device connected to the target battery to obtain target voltage data, determining resistance data of the sampling resistor according to the target voltage data, and determining a battery temperature of the target battery according to the resistance data and target map data, wherein the target map data includes a mapping relationship between at least one set of resistance data and temperature data. Optionally, the compensation of the initial voltage data according to the impedance data of the battery connection device connected with the target battery to obtain target voltage data comprises the steps of obtaining current data of the target battery, determining compensation voltage data of the sampling resistor according to the current data and the impedance data, and determining the target voltage data according to the compensation voltage data and the initial voltage data. Optionally, the method further comprises the steps of responding to a temperature acquisition instruction for the target battery, determining a data identifier of the battery connection device, wherein the data identifier is used for indicating the storage state of the impedance data, and determining the impedance data according to the data identifier. Optionally, the determining the impedance data according to the data identifier comprises reading the impedance data from a database when the data identifier indicates that the impedance data exists, and determining the impedance data according to the current change data and the voltage change data of the target battery when the data identifier indicates that the impedance data does not exist. Optionally, after the determining the battery temperature of the target battery according to the resistance data and the target mapping data, the method further comprises filtering the battery temperature. Optionally, the filtering of the battery temperature comprises determining an upper temperature limit threshold and a lower temperature limit threshold of the target battery, and filtering battery temperatures greater than the upper temperature limit threshold and/or less than the lower temperature limit threshold when a filtering condition is met, wherein the filtering condition comprises that the change among the battery temperatures determined for the target battery is greater than or equal to a preset range in a first acquisition time. Optionally, the filtering the battery temperature comprises obtaining a temperature set corresponding to a second acquisition time, wherein the temperature set comprises all the battery temperatures determined for the target battery in the second acquisition time, and average processing is performed on all the battery temperatures in the temperature set. In a second aspect, an embodiment of the present application further provides a temperature acquisition apparatus, where the apparatus includes a data acquisition module configured to acquire initial voltage data of a sampling resistor in a target battery, a voltage compensation module configured to compensate the initial voltage data according to impedance data of a battery connection device connected to the target battery to obtain target voltage data, a resistance determination module configured to determine resistance data of the sampling resistor according to the target voltage data, and a temperature determination module configured to determine a battery temperature of the target battery according to the resistance data and target mapping data, where the target mapping data includes at least one set of mapping relationships between resistance data and temperature data. In a third aspect, embodiments of the present a