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:
Dec. 04, 2012
Filed:
Sep. 24, 2008
Cha-seung Jun, Seoul, KR;
Byoung-wook Min, Seoul, KR;
Dong-cheol Lee, Seoul, KR;
Jae-chul Lee, Seoul, KR;
Cha-Seung Jun, Seoul, KR;
Byoung-Wook Min, Seoul, KR;
Dong-Cheol Lee, Seoul, KR;
Jae-Chul Lee, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A motor, and a method and apparatus for controlling the motor for a washer are provided. The motor includes a stator on which a plurality of coils are wound and disposed in a circular shape, a rotor having a plurality of permanent magnets spaced apart from the coils by a predetermined distance, and a motor controller performing a vector control method for controlling a current vector applied on a d-q axis rotating coordinate system in a start mode of the rotor to make a current speed of the rotor follow a reference speed of the rotor by comparing the current speed with the reference speed. The motor controller includes a speed/position detector for detecting the current speed and a current position of the rotor using an on/off signal of a hall sensor installed on the stator.