The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2020
Filed:
Dec. 04, 2017
Huawei Technologies Co., Ltd., Shenzhen, CN;
Jianping Jiang, Shenzhen, CN;
Guanghui Zhang, Shenzhen, CN;
Xiaosheng Zeng, Shenzhen, CN;
Laisuo Su, Beijing, CN;
Jianbo Zhang, Beijing, CN;
Zhe Li, Beijing, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for detecting a battery state of health includes a current and a voltage are measured twice in a period of time; corresponding model algorithms are selected according to the measured current values; corresponding battery open circuit voltage values and battery state of charge values at a start time and an end time of the period are obtained based on the model algorithms; a battery capacity difference that indicates a present battery retention capacity and a battery capacity difference that indicates a future battery retention capacity are calculated; and a battery state of health value is calculated when impact of a measured battery temperature value is considered.