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:
May. 25, 2021
Filed:
Nov. 20, 2018
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Mi Ok Kim, Gyeonggi-do, KR;
Do Sung Hwang, Gyeonggi-do, KR;
Bo Seon Lee, Seoul, KR;
Beom Gyu Kim, Gyeonggi-do, KR;
Jong Hu Yoon, Gyeonggi-do, KR;
Hyun Soo Park, Gyeonggi-do, KR;
Tae Hwan Chung, Incheon, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
A power relay assembly (PRA) and a method of controlling the same are provided. The power relay assembly includes a first main relay for interconnecting negative voltages of a battery and an inverter, a second main relay for interconnecting positive voltages of the battery and the inverter, and a pre-charge relay connected in parallel to the second main relay. A controller executes the open or short sequence of the first main relay, the second main relay, and the pre-charge relay based on the opening and closing operation between the battery and the inverter or the charging and discharging operation of the battery. The opening and closing operation is divided into an opening operation and a closing operation between the battery and the inverter, and the charging and discharging operation is divided into a charging operation and a discharging operation of the battery.