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. 28, 2019
Filed:
Jul. 30, 2018
Whirlpool Corporation, Benton Harbor, MI (US);
Erol D. Sumer, East Lansing, MI (US);
Fernando E. De Oliveira, Joinville, BR;
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A method of estimating water mass extraction in a laundry treating appliance having a drum at least partially defining a treating chamber for receiving a laundry load for treatment according to a cycle of operation, and a motor operably coupled with the drum to rotate the drum, where geometry changes in a laundry load affect inertia estimations. The method includes rotating the drum during a water extraction cycle to at least two distinct speeds, each for a dwell time, by way of at least one acceleration ramp and determining, during the rotation, by a controller communicably coupled with the motor, at least one of a torque of the motor, an acceleration of the drum, a speed of the drum, or an angular position of the drum. A parameter estimator estimates inertia values of a laundry load in the drum, based on at least one of the torque, acceleration, speed, or angular position of the drum at a beginning and an end of each dwell time. A water mass extraction is determined based on the estimated inertia values. The cycle of operation is adjusted based on the determined water mass extraction.