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:
Feb. 15, 2022
Filed:
Sep. 18, 2020
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Chae Duck Chon, Suwon-si, KR;
Nam Koo Han, Yongin-si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA MOTORS CORPORATION, Seoul, KR;
Abstract
A system for protecting an inverter in a vehicle from an overvoltage may include an inverter including a plurality of switching elements and converting energy supplied from an energy storage into AC power, a motor driven by the AC power converted by the inverter, a capacitor connected in parallel between the inverter and the energy storage and storing regenerative energy of the motor during regenerative braking, and a controller turning off a relay that connects the energy storage and the motor, when a voltage (DC-link voltage) of the capacitor measured by a voltage sensor is equal to or greater than a preset first voltage, and operating the switching elements in the inverter in response to a pre-stored current command (Id*, Iq*) to apply a zero vector to the motor.