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:
Sep. 23, 2025
Filed:
Jan. 25, 2024
Southwest Jiaotong University, Chengdu, CN;
Jin Sha, Chengdu, CN;
Gaofeng Qiu, Chengdu, CN;
Yuebing Sun, Chengdu, CN;
Jinsong Shen, Chengdu, CN;
Haitao Hu, Chengdu, CN;
Zhaoyang Zhao, Chengdu, CN;
Anqi Geng, Chengdu, CN;
Southwest Jiaotong University, Chengdu, CN;
Abstract
The present disclosure is a method for controlling a battery power interface converter with an ultra-wideband EIS measurement function. According to the present disclosure, a discrete pulse control method based on discrete pulse modulation is adopted, which, by generating two discrete duty ratio signals and according to a relationship between a battery charging current and a reference current, selects an appropriate duty ratio signal from the two discrete duty ratio signals to generate a control pulse signal to act on the battery power interface converter. The method of the present disclosure achieves accurate tracking of the output current of the power interface converter to DC charging or ultra-wideband hybrid reference current. A battery charging control system can achieve a normal constant-current charging function while operating in a constant-current charging mode and the ultra-wideband EIS of a battery accurate measurement function in an EIS measurement mode.