Patent ID: 8955183
Filing Date: 2015-02-17
Classification: D06F

Abstract:
1. A method for execution by a controller of a laundry machine, the method comprising the steps of: (a) energising an electric motor to rotate a drum of the laundry machine during a low speed rotation whereby a load is tumbling within the drum; (b) monitoring one or more inputs from one or more load sensors arranged to sense a parameter being or indicative of at least one of acceleration, velocity, force, or displacement of the drum in at least two independent locations; (c) continually determining one or more characteristic indices of the load sensors from the inputs; (d) determining, within a single revolution of the drum at the low speed, the presence of a first condition by comparing the indexes indices with a first criteria to thereby detect when the tumbling load within the drum is evenly distributed throughout the period of rotation, and (e) on detecting said first condition, immediately energising the electric motor in a spin-up phase of the laundry machine to accelerate the drum to a higher speed so as to evenly distribute the load within the drum and to hold the load centrifugally against the drum and thereby minimize any static or dynamic imbalance as the drum rotates.