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:
Mar. 08, 2022
Filed:
Aug. 31, 2018
Gac Aion New Energy Automobile Co. Ltd, Guangdong, CN;
Zhuliang Xia, Guangdong, CN;
Lingwei Liang, Guangdong, CN;
Shu Cheng, Guangdong, CN;
Xiaokun Zhao, Guangdong, CN;
Xiutian Liu, Guangdong, CN;
Xiang Han, Guangdong, CN;
GAC AION NEW ENERGY AUTOMOBILE CO. LTD, Guangzhou, CN;
Abstract
Provided is a Direct Circuit (DC) bus discharge control method, including that: an active discharge instruction is received; a motor current signal is acquired according to the active discharge instruction; the motor current signal is converted into a current signal in a stator coordinate system; a voltage control signal in the stator coordinate system is output based on the current signal in the stator coordinate system and a current reference instruction of a preset stator coordinate system, the current reference instruction of the preset stator coordinate system being a high-frequency alternating current; and the voltage control signal in the stator coordinate system is converted into a three-phase voltage control signal, and a working state of a switching device is controlled according to the three-phase voltage control signal.