Title:
METHOD AND DEVICE FOR ESTIMATING HEAT OF POWER BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2022/188760
Kind Code:
A1
Abstract:
Provided is a method for estimating heat of a power battery pack, and may be applied in scenarios of including, but not limited to, a cloud device or an intelligent terminal. The method comprises: according to first state data of a power battery pack, determining second state data of the power battery pack, wherein the first state data comprises terminal current, terminal voltage and temperature, and the second state data comprises open-circuit voltage and a partial derivative of the open circuit voltage to the temperature (110); inputting the first state data and the second state data into a heat estimation model to obtain an internal heat of the power battery pack (120). The present method may improve the accuracy and efficiency of power battery pack heat estimation.
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Inventors:
HU MINGRUI (CN)
CHENG KANG (CN)
CHENG KANG (CN)
Application Number:
PCT/CN2022/079655
Publication Date:
September 15, 2022
Filing Date:
March 08, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01R31/367
Foreign References:
| CN112068000A | 2020-12-11 | |||
| CN110324382A | 2019-10-11 | |||
| CN110324394A | 2019-10-11 | |||
| CN111090963A | 2020-05-01 | |||
| CN106274539A | 2017-01-04 | |||
| CN111422101A | 2020-07-17 | |||
| US20150099150A1 | 2015-04-09 | |||
| JP2021009103A | 2021-01-28 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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