Washing machine control method and washing machine

Abstract

The washing machine control method comprises the steps that a motor drives an inner barrel to rotate unidirectionally at a constant speed so that a load can be tightly attached to the wall of the inner barrel, and a computer board obtains current changes according to power changes of the motor so as to obtain fuzzy values; then the fuzzy value is matched with a preset load weight-fuzzy value curve to obtain the load weight, and working parameters are obtained according to the load weight for washing; the load weight-fuzzy value curve is a curve which is preset in a computer board of the washing machine, is obtained by fitting different load weights and fuzzy values corresponding to the different load weights, and represents the relationship between the fuzzy values and the load weights; according to the scheme, the range of the constant speed is 30-40 rpm, it can be guaranteed that the load is tightly attached to the wall of the inner barrel and the inner barrel does not shake seriously at the rotating speed, and the obtained fuzzy value is only directly related to the weight of the load, so that the more accurate load weight can be obtained, and then matching of the load weight and the working parameters is achieved.

Description

technical field [0001] The invention belongs to the field of washing machines, and in particular relates to a washing machine control method and the washing machine. Background technique [0002] Existing washing machines have a variety of program functions, which often require users to program independently according to washing needs. However, because users do not have a clear understanding of the working parameters in the washing process, the set working parameters may not match the actual load weight. Matching, and then there is a problem that the water level setting is too high to cause waste of water resources, or the water level setting is low and the load cannot be thoroughly washed. [0003] In order to solve the above technical problems, the existing technology judges the weight of the load through fuzzy weighing and adjusts the working parameters accordingly, avoiding the problem that the working parameters set by the user independently cannot match the actual quan...

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Problems solved by technology

[0004] For example, the Chinese invention patent whose application number is CN201410277513.7 discloses a fuzzy weighing method and a pulsator washing machine. The wheel decelerates freely to the second rated speed at the same time, and the weight of the load is determined according to the time spent decelerating from the first rated speed to the second rated speed; in the above scheme, the length of free deceleration of the motor and the pulsator is often affected by the load weight, distribution state, and The impact of the friction between the pulsator, the motor and the inner barrel, so the load weight obtained by fuzzy weighing by the above method often has a large deviation from the actual weight, and the working parameters set on the basis of this weight cannot be well compared with the actual weight. The actual weight of the load matches the

[0005] The Chinese invention patent with the application number CN201710323973.2 discloses a fuzzy weighing method for a washing machine. A clutch is installed on the motor, and a Hall sensor is installed on the clutch. The fuzzy weighing includes the following steps: control the motor according to the preset beat Forward and reverse, obtain the number of pulses generated by the Hall sensor during the forward and reverse process of the motor, and judge the load weight of the washing machine according to the number of pulses generated by the Hall sensor; however, the pulse number and pulse interval of the Hall sensor in the above scheme are not only Affected by the load distribution state and load weight, it will also be affected by the sensitivity of the sensor. The inner bucket and motor shaking caused by uneven load distribution during forward rotation and reverse rotation will also affect the accuracy of the results. Therefore, the results obtained in this way There is also a large deviation between the weight of the load and the actual weight of the load, which will still cause the problem that the working parameters set at this weight cannot match the actual weight of the load

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