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:
Feb. 27, 2018
Filed:
Jan. 13, 2015
General Electric Company, Schenectady, NY (US);
Mark Anthony Didat, Floyds Knobs, IN (US);
Richard Dean Suel, II, Louisville, KY (US);
Scott Michael Gelber, Athens, AL (US);
Haier US Appliance Solutions, Inc., Wilmington, DE (US);
Abstract
Methods and systems are provided for monitoring current flow in an induction motor, particularly an induction motor associated with a washing machine and for controlling operation of the motor to limit thermals during operation of the motor. The subject matter provides for periodically stopping the motor and applying a phase limited alternating (AC) voltage to the motor that is of insufficient magnitude to start the motor rotating. A current reading is taken and converted using a look up table to a corresponding temperature. If the temperature exceeds a predetermined amount, temperature fold back procedures are initiated the may include shortening and/or pausing certain washer operations.