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. 16, 2016
Filed:
Jun. 19, 2014
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Hyun-bae Kim, Yongin-si, KR;
Jung-hyo Lee, Suwon-si, KR;
Jei-hoon Baek, Seoul, KR;
Kyu-bum Han, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-Do, KR;
Sungkyunkwan University Foundation For Corporate Collaboration, Gyeonggi-Do, KR;
Abstract
A method of controlling torque of a permanent magnet synchronous motor (PMSM) by using a speed-torque lookup table may include: receiving a current direct-current (DC) link voltage of an inverter configured to drive the PMSM and a speed of a rotor of the PMSM; calculating a change ratio of a DC link voltage based on the current DC link voltage and a DC link voltage at a time when the speed-torque lookup table is generated; calculating a normalized speed of the rotor according to a change in the DC link voltage by using the speed of the rotor and the change ratio of the DC link voltage; and/or transferring the normalized speed of the rotor as an input to the speed-torque lookup table.