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. 31, 2016
Filed:
Nov. 23, 2014
Hyundai Motor Company, Seoul, KR;
Postech Academy-industry Foundation, Pohang Gyeongsangbuk-Do, KR;
Jaesik Yang, Gyeonggi-do, KR;
Kitae Yeom, Seoul, KR;
Sung Won Kim, Gyeonggi-do, KR;
Tae Won Hwang, Seoul, KR;
Jun Woo Kim, Gyeongsangbuk-do, KR;
Kwang-Hee Nam, Gyeongsankbuk-do, KR;
Hyundai Motor Company, Seoul, KR;
Postech Academy-Industry Foundation, Pohang, Gyeongsangbuk-do, KR;
Abstract
A sensorless control method for a motor performed by a sensorless controller including a back electromotive force (EMF) observer and a phase locked loop (PLL) controller, includes: estimating a back EMF of the motor using the back EMF observer; calculating an electrical angle error in accordance with iron loss of the motor based on the estimated back EMF; and compensating for the calculated electrical angle error, inputting the compensated electrical angle error into the PLL controller to estimate an actual angle, and controlling the motor based on the estimated actual angle.