WO2021057917A1 - 电池温度估算方法、装置、电子设备及存储介质 - Google Patents
电池温度估算方法、装置、电子设备及存储介质 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/26—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being an electrolyte
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- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/42—Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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Abstract
Description
Claims (16)
- 一种电池温度估算方法,包括:在电池处于离线状态下,根据所述电池在不同测试温度下对应的导纳拟合第一函数关系;根据所述电池的形状和尺寸获取所述电池的温度分布模型,结合所述第一函数关系确定内部温度与表面温度对应的第二函数关系,所述第二函数关系用于结合电池表面温度以及电池导纳对电池的内部温度进行估算。
- 如权利要求1所述的电池温度估算方法,其中,所述根据所述电池在不同测试温度下对应的导纳拟合第一函数关系,包括:在电池处于离线状态下,确定特征测试频率,所述特征测试频率属于目标频率范围,在所述目标频率范围中,电池的阻抗不随所述电池的荷电状态的变化而变化;根据所述特征测试频率,确定电池在不同测试温度下对应的导纳;根据所述不同测试温度,以及所述对应的导纳拟合所述第一函数关系。
- 如权利要求2所述的电池温度估算方法,其中,所述确定特征测试频率,包括:在不同荷电状态下,结合预设频率范围对所述电池进行电化学阻抗谱测试;根据测试的结果,从所述预设频率范围内确定出所述目标频率范围;在不同温度下,结合设定荷电状态测试所述电池的电化学阻抗谱的响应值,并将所述响应值转换为对应的导纳;将所述目标频率范围中,导纳的实部随温度变化最大的频率,确定为所述特征测试频率。
- 如权利要求2或3所述的电池温度估算方法,其中,所述根据所述不同测试温度,以及所述对应的导纳拟合第一函数关系,包括:根据所述不同测试温度、所述对应的导纳实部,以及Arrhenius公式拟合所述第一函数关系。
- 如权利要求1-4任一项所述的电池温度估算方法,其中,所述方法还包括:检测所述待估算电池目标表面温度,并检测所述待估算电池的目标导纳;根据所述目标表面温度和所述目标导纳,结合所述第二函数关系确定所述待估算电池的内部温度。
- 如权利要求1-5任一项所述的电池温度估算方法,其中,所述根据所述电池的形状 和尺寸获取所述电池的温度分布模型,结合所述第一函数关系确定内部温度与表面温度对应的第二函数关系,包括:对所述第一函数关系进行积分处理;根据所述温度分布模型,结合积分处理后第一函数关系确定电池的第二函数关系。
- 如权利要求1-6任一项所述的电池温度估算方法,其中,所述电池的形状为方形。
- 一种电池温度估算装置,其中,包括:拟合模块,用于在电池处于离线状态下,根据所述电池在不同测试温度下对应的导纳拟合第一函数关系;第一确定模块,用于根据所述电池的形状和尺寸获取所述电池的温度分布模型,结合所述第一函数关系确定内部温度与表面温度对应的第二函数关系,所述第二函数关系用于结合电池表面温度以及电池导纳对电池的内部温度进行估算。
- 如权利要求8所述的电池温度估算装置,其中,所述拟合模块,包括:第一确定子模块,用于在电池处于离线状态下,确定特征测试频率,所述特征测试频率属于目标频率范围,在所述目标频率范围中,电池的阻抗不随所述电池的荷电状态的变化而变化;第二确定子模块,用于根据所述特征测试频率,确定电池在不同测试温度下对应的导纳;拟合子模块,用于根据所述不同测试温度,以及所述对应的导纳拟合所述第一函数关系。
- 如权利要求9所述的电池温度估算装置,其中,所述装置还包括:检测模块,用于检测所述待估算电池目标表面温度,并检测所述待估算电池的目标导纳;第二确定模块,用于根据所述目标表面温度和所述目标导纳,结合所述第二函数关系确定所述待估算电池的内部温度。
- 如权利要求9或10所述的电池温度估算装置,其中,所述第一确定子模块,具体用于:在不同荷电状态下,结合预设频率范围对所述电池进行电化学阻抗谱测试;根据测试的结果,从所述预设频率范围内确定出所述目标频率范围;在不同温度下,结合设定荷电状态测试所述电池的电化学阻抗谱的响应值,并将所述响应值转换为对应的导纳;将所述目标频率范围中,导纳的实部随温度变化最大的频率,确定为所述特征测试频率。
- 如权利要求8-11任一项所述的电池温度估算装置,其中,所述拟合子模块,具体用于:根据所述不同测试温度、所述对应的导纳实部,以及Arrhenius公式拟合所述第一函数关系。
- 如权利要求8-12任一项所述的电池温度估算装置,其中,所述第一确定模块,具体用于:对所述第一函数关系进行积分处理;根据所述温度分布模型,结合积分处理后第一函数关系确定电池的第二函数关系。
- 如权利要求8-13任一项所述的电池温度估算装置,其中,所述电池的形状为方形。
- 一种电子设备,包括:存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述程序时实现如权利要求1-7中任一项所述的电池温度估算方法。
- 一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行实现如权利要求1-7中任一项所述的电池温度估算方法。
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JP2022519442A JP7379679B2 (ja) | 2019-09-29 | 2020-09-25 | 電池温度推定方法、装置、電子機器、及び記憶媒体 |
EP20870190.4A EP4024069A4 (en) | 2019-09-29 | 2020-09-25 | BATTERY TEMPERATURE ESTIMATION METHOD AND DEVICE, ELECTRONIC DEVICE AND STORAGE MEDIA |
US17/764,340 US11846675B2 (en) | 2019-09-29 | 2020-09-25 | Battery temperature estimation method and apparatus, electronic device, and storage medium |
KR1020227011623A KR20220057614A (ko) | 2019-09-29 | 2020-09-25 | 배터리 온도를 추정하는 방법 및 장치, 전자 디바이스, 및 저장 매체 |
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CN112994585B (zh) * | 2021-04-01 | 2023-07-21 | 安徽江淮汽车集团股份有限公司 | 电机的控制方法、电机和可读存储介质 |
CN114184964B (zh) * | 2021-12-08 | 2023-08-29 | 蜂巢能源科技(无锡)有限公司 | 一种电芯内部温度分布的评估方法及装置 |
CN113945302B (zh) * | 2021-12-20 | 2022-03-08 | 中创新航科技股份有限公司 | 一种电池内部温度的确定方法及其确定装置 |
CN114720890B (zh) * | 2022-03-23 | 2023-04-21 | 四川大学 | 一种基于宽频阻抗谱的锂电池内部温度估计方法 |
CN116429280A (zh) * | 2023-06-13 | 2023-07-14 | 广汽埃安新能源汽车股份有限公司 | 一种动力电池整包温度确定方法及装置 |
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JP2022550125A (ja) | 2022-11-30 |
CN112578298A (zh) | 2021-03-30 |
EP4024069A4 (en) | 2022-10-26 |
JP7379679B2 (ja) | 2023-11-14 |
EP4024069A1 (en) | 2022-07-06 |
US20220357399A1 (en) | 2022-11-10 |
CN112578298B (zh) | 2022-03-15 |
US11846675B2 (en) | 2023-12-19 |
KR20220057614A (ko) | 2022-05-09 |
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