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. 13, 2018
Filed:
Nov. 19, 2015
Whirlpool Corporation, Benton Harbor, MI (US);
Brian P. Janke, Saint Joseph, MI (US);
Stephen L. Keres, Stevensville, MI (US);
Erol D. Sumer, East Lansing, MI (US);
Ran Zhao, Saint Joseph, MI (US);
Bradley D. Morrow, Stevensville, MI (US);
Nicholas C. Fugal, Benton Harbor, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A method of detecting high friction events in a laundry treating appliance includes rotating the drum, determining, during the rotation, a torque of the motor, an acceleration of the drum, a speed of the drum, and/or an angular position of the drum at each of multiple speeds, and repeatedly estimating with a parameter estimator, during the rotation, viscous friction, coulomb friction, and total friction based on the torque, acceleration, speed, and/or angular position of the drum. A high friction even is determined based on the estimated viscous friction, coulomb friction and/or total friction.