Load distribution method for roller washing machine

Abstract

The invention discloses a load distribution method for a roller washing machine, and the method specifically comprises the steps: determining a critical rotating speed according to the radius of an inner roller after a dehydration process is started, floating up and down on the basis of the first critical rotating speed to obtain a second critical rotating speed larger than the first critical rotating speed and a third critical rotating speed smaller than the first critical rotating speed, and then controlling the inner drum to distribute the washings at the first critical rotating speed, the second critical rotating speed and the third critical rotating speed respectively, the eccentric state is detected in real time in the distribution process to obtain a first eccentric value, if the first eccentric value is always larger than a preset eccentric threshold value in the distribution process, the inner drum is controlled to rotate reversely to disperse the washings, meanwhile, whether a second critical threshold value is too large or not is judged, if yes, the second critical threshold value is reduced, and then the distribution process is repeated; and the dehydration process is continuously completed until the first eccentric value is smaller than the preset eccentric threshold value, and uniform distribution of the washings is achieved through the scheme.

Description

technical field [0001] The invention belongs to the field of washing machines, in particular to a load distribution method for drum washing machines. Background technique [0002] At present, during the dehydration stage of the drum washing machine, it is easy to frequently trigger the eccentricity alarm due to the uneven distribution of the laundry, or cause the water content of the laundry to remain high after dehydration, which significantly reduces the user experience. [0003] In order to solve this problem, in the prior art, the trigger time and displacement degree of the eccentricity detection device are usually set to judge the degree of eccentricity, or the degree of eccentricity can be judged by detecting the power fluctuation of the motor, and then the corresponding eccentricity correction program is executed to eliminate the eccentricity , but the above-mentioned solution cannot fundamentally solve the problem of eccentricity caused by uneven distribution of laun...

AI Technical Summary

Problems solved by technology

[0002] At present, during the dehydration stage of the drum washing machine, it is easy to frequently trigger the eccentricity alarm due to the uneven distribution of the laundry, or cause the water content of the laundry to remain high after dehydration, which significantly reduces the user experience.

[0003] In order to solve this problem, in the prior art, the trigger time and displacement degree of the eccentricity detection device are usually set to judge the degree of eccentricity, or the degree of eccentricity can be judged by detecting the power fluctuation of the motor, and then the corresponding eccentricity correction program is executed to eliminate the eccentricity , but the above solution cannot fundamentally solve the problem of eccentricity caused by uneven distribution of laundry

[0004] For example, the Chinese invention patent with the application number CN201810869240.3 discloses a washing machine control method and the washing machine. During the dehydration process of the washing machine, the washing machine judges the degree of eccentricity of the load according to the time when the barrel collision detection device is triggered, and then performs the corresponding eccentricity correction. The program can reduce the running time of the program on the premise of ensuring the effect of eccentricity correction; however, the above scheme still corrects the eccentricity after the eccentricity occurs, and cannot find the eccentricity and correct it before high-speed dehydration to avoid the occurrence of barrel collision

[0005] In order to overcome the defects of the above-mentioned prior art, the Chinese invention patent with application number CN201410266859.7 discloses a washing machine unbalance detection method and washing machine, specifically, run the dehydration sequence, perform eccentricity detection and test dehydration action, and design according to the eccentricity Initial dehydration curve, then dehydrate according to the dehydration curve and continue to detect the amount of eccentricity, and perform corrective actions when the amount of eccentricity exceeds the limit value; although the above scheme realizes the early detection of eccentricity through trial dehydration, it cannot detect whether the laundry is distributed properly. Uniform, and the distribution of the laundry cannot be adjusted before eccentricity occurs

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