Patent · US Active

Battery internal temperature information processing method, computer device, and storage medium

US12222396B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

BYD Company Limited · CN

Inventors

Linwang DENG · Lo Wu, CN
Xiaoqian Li · Chandler, US
Tianyu FENG · Lo Wu, CN
Sijia Liu · Beijing, CN

Key dates

Filing date	Oct 23, 2020
Grant date	Feb 11, 2025
Priority date	—
Expiry date	Nov 17, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A battery internal temperature information processing method, a computer device, and a storage medium that first acquire off-line testing data for off-line testing a battery module and construct an equivalent thermal network model from the off-line testing data, determine optimal model parameters of the equivalent thermal network model based on a multi-objective function fitting method; thereafter, a first battery internal temperature estimate of the battery of the vehicle at a first moment in actual operation of the vehicle is determined, in turn, based on the acquired initial state vector values of the battery of the vehicle, first operational data at a first moment in actual operation of the vehicle, and an equivalent thermal network model including the optimal model parameters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.