Apparatus and method for determining inertia of a laundry load

摘要

A laundry treating appliance for treating a laundry load according to at least one cycle of operation including a rotatable drum at least partially defining a treating chamber in which a laundry load is received for treatment, a motor rotatably driving the drum in response to a motor control signal, and a controller outputting a motor control signal to rotate the drum according to a speed profile having at least a constant speed phase, where the drum is rotated at a constant speed, and an acceleration phase, where the drum is accelerated to the constant speed and a method of operating a laundry treating appliance to determine an inertia of the laundry load.

主权项

1. A method of operation of a laundry treating appliance having a rotatable drum at least partially defining a treating chamber in which a laundry load is received for treatment, and a motor rotatably driving the drum in response to a control signal, the method comprising:
rotating the drum with the motor according to a speed profile having at least a constant speed phase, where the drum is rotated at a constant speed, and an acceleration phase, where the drum is accelerated to the constant speed; monitoring power provided to the motor during the acceleration phase; calculating power to be provided to the motor for the constant speed based on the monitored power during the acceleration phase; determining the power provided to the motor during the constant speed phase; and determining an inertia of the laundry load based on a difference between the calculated power and the determined power.