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:
Aug. 25, 2020
Filed:
Sep. 12, 2017
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Dong Hun Lee, Anyang-si, KR;
Chang Seok You, Anyang-si, KR;
Min Su Kang, Paju-si, KR;
Sung Do Kim, Seongnam-si, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
A motor drive control method is provided for controlling a speed of a motor such that a measured speed value of the motor follows a speed command value. The motor drive control method includes an on/off driving operation of driving a torque of the motor based on the speed command value in such a way that the torque of the motor is repeatedly turned on/off on preset cycle and duty. The motor drive control method and system can markedly enhance efficiency of a motor by reducing switching loss and current ripple loss of an inverter in a low-speed driving period of a high-speed motor.