Washing machine and wet cloth weighing method and device thereof

Abstract

The invention discloses a washing machine and a wet cloth weighing method and device thereof. The method comprises the following steps: after the washing machine enters a dewatering program, controlling the rotating speed of a dewatering motor of the washing machine to be increased from zero speed; in a stage of increasing the rotating speed of the dewatering motor, acquiring first total power required for the dewatering motor which drives an inner barrel of the washing machine to rotate by a first number of turns in a process of increasing a first rotating speed to a second rotating speed; in a second stage of stable running at the second rotating speed of the dewatering motor of the washing machine, acquiring a second total power required for the dewatering motor which drives the inner barrel of the washing machine to rotate by a second number of turns in a process of stable running at the second rotating speed, and acquiring an average torque ripple value of the dewatering motor which drives the inner barrel to rotate in the process of stable running at the second rotating speed; and calculating weight of clothes in the inner barrel according to the first total power, the second total power and the average torque ripple value. According to the method of the invention, wet cloth weight of the clothes can be conveniently and accurately acquired in a dewatering process.

Description

technical field

[0001] The invention relates to the technical field of washing appliances, in particular to a wet cloth weighing method for a washing machine, a wet cloth weighing device for a washing machine and a washing machine. Background technique

[0002] The current frequency converter pulsator washing machines basically have the function of weighing dry cloth, that is, the clothes are weighed before the washing starts, so as to intelligently set the washing water level and washing cycle, and use dry cloth to weigh the clothes after they are wet Running in the same way is easy to cause stalling, and it is impossible to distinguish the weight of the clothes, so there is no similar action in the dehydration stage. When the user selects single dehydration, because there is no weighing function, the washing machine does not have any load information, it is easy to have problems such as bucket collision, failure to start, and failure to reach the maximum speed. In severe c...

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