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. 30, 2013
Filed:
Feb. 29, 2012
Xiaohua Tang, Guangdong, CN;
Zhiyong Du, Guangdong, CN;
Yongzhuang Zhou, Guangdong, CN;
Cong Xia, Guangdong, CN;
Lipin Cheng, Guangdong, CN;
Hui MA, Guangdong, CN;
Xiaohua Tang, Guangdong, CN;
Zhiyong Du, Guangdong, CN;
Yongzhuang Zhou, Guangdong, CN;
Cong Xia, Guangdong, CN;
Lipin Cheng, Guangdong, CN;
Hui Ma, Guangdong, CN;
BYD Company Limited, Shenzhen, Guangdong, CN;
Abstract
An open phase detection system and method for a three-phase motor is provided. The open phase detection system comprises: a signal generating unit coupled to the three-phase motor and configured to generate a driving signal for driving the three-phase motor; a detecting unit coupled to the signal generating unit, and configured to detect whether the signal generating unit generates the driving signal and to detect three-phase current values of the three-phase motor; and a determining unit coupled to the detecting unit, and configured to determine whether the three-phase motor has open phase according to the three phase current values detected by the detecting unit when the driving signal is detected.