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:
Oct. 13, 2020
Filed:
Mar. 08, 2018
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Research & Business Foundation Sungkyunkwan University, Suwon-si, Gyeonggi-do, KR;
Woo Young Lee, Yongin-si, KR;
Gyu Yeong Choe, Suwon-si, KR;
Jae Eun Cha, Gwangmyeong-si, KR;
Min Jung Kim, Suwon-si, KR;
Byoung Kuk Lee, Yongin-si, KR;
Min Kook Kim, Suwon-si, KR;
Sang Joon Ann, Suwon-si, KR;
Jong Eun Byun, Suwon-si, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Research & Business Foundation Sungkukwan University, Suwon-si, Gyeonggi-do, KR;
Abstract
A method for detecting a foreign object between a transmission pad and a reception pad for wireless power transfer (WPT) may comprise: performing, by a processor, a zero phase angle (ZPA) control for a power transfer converter included in or connected to the transmission pad; detecting, by the processor, a phase difference between an input current and an input voltage of the power transfer converter; and determining, by the processor, whether or not the foreign object exists between the transmission pad and the reception pad by comparing the phase difference with a reference value.