Dehydration control method of drum washing machine

Abstract

In a dehydration control method of a drum washing machine capable of improving reliability of eccentricity sensing by sensing not only forward eccentricity but also diagonal eccentricity by performing eccentricity sensing at a low speed and a high speed respectively, the method includes a first step for accelerating a drum to a first rotational speed when a uniforming process is finished; a second step for measuring first eccentricity when the rotational speed of the drum reaches the first rotational speed; a third step for comparing the measured first eccentricity with a preset first reference eccentricity; a fourth step for storing the measured first eccentricity when the measured first eccentricity is less than the preset first reference eccentricity in the third step; a fifth step for accelerating the rotational speed of the drum to a second rotational speed and measuring a second eccentricity when it reaches the second rotational speed; a sixth process for comparing the measured second eccentricity with the stored first eccentricity; and a seventh step for performing a dehydrating process when the measured second eccentricity is less than the stored first eccentricity.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of U.S. application Ser. No. 10 / 330,122, filed Dec. 30, 2002, the contents of which is expressly incorporated by reference herein in its entirety.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a drum washing machine, and in particular to a dehydration control method of a drum washing machine which is capable of preventing vibration and noise due to excessive eccentricity and securing reliability of eccentricity sensing. [0004] 2. Description of the Prior Art [0005] In general, a drum washing machine performs a dehydrating process through a uniforming process after a cleaning process is finished. Herein, the uniforming process is for uniforming the laundry tangled in the cleaning process, tangle of the laundry is loosened by separating the laundry from the internal wall of a drum by rotating the drum at a low speed. And, after the uniforming process ...

AI Technical Summary

Benefits of technology

[0019] In order to solve the above-mentioned problem, it is an object of the present invention to provide a dehydration control method of a drum washing machine which is capable of improving reliability of eccentricity sensing, lowerin

Problems solved by technology

Herein, when the drum is rotated at a high speed in the dehydrating process and the laundry is eccentrically placed in the drum, vibration and noise occur, various parts installed inside the washing machine may be damaged or dehydration performance may be lowered.

However, in the conventional dehydration control method of the drum washing machine, b

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