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. 24, 2016
Filed:
Jun. 19, 2014
Methods and apparatuses for compensating for friction torques of permanent magnet synchronous motors
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 compensating for a friction torque of a permanent magnet synchronous motor may include: receiving input of a motor current and a rotor speed of the permanent magnet synchronous motor; estimating a motor torque based on the input motor current; acquiring a first friction torque corresponding to the input rotor speed and the estimated motor torque by using a lookup table of friction torques; compensating for a second friction torque of the permanent magnet synchronous motor based on the first friction torque, wherein the compensating is in response to a first torque command input to control driving of the permanent magnet synchronous motor and outputs a second torque command that compensates for the second friction torque; and/or controlling the driving of the permanent magnet synchronous motor based on the second torque command.