Automatic weighing method of barrel washing machine

Abstract

The invention relates to an automatic weighing method of a barrel washing machine. The method comprises the following steps: firstly, controlling a motor to reach a first preset rotating speed, enabling the motor to rotate at a uniform speed by the first preset rotating speed, and measuring the electrical energy of the drive load of the motor at the time; then, controlling the motor to be accelerated from the first preset rotating speed to a second preset rotating speed and measuring the ascending electrical energy of the motor when accelerated from the first preset rotating speed to the second preset rotating speed; finally, using the ascending electrical energy of the motor when accelerated from the first preset rotating speed to the second preset rotating speed to subtract a differencevalue obtained by multiplying the electrical energy of the motor rotating at the uniform speed by the first preset rotating speed by a time modification parameter according to the detection result, and calculating the corresponding load electrical energy; and comparing the corresponding relation curve of the obtained load electrical energy and the load weight with the corresponding relation curveof the load electrical energy stored in a computer controller of a washing machine and the load weight after the modification step so as to determine the most approximate weight data. The invention has high detection precision and short detection time.

Description

Technical field [0001] The invention relates to an automatic weighing method for a drum washing machine, in particular to a method for accurately detecting the difference between the energy required for a motor to accelerate to a certain speed under different load conditions and the energy when operating at a certain speed at a constant speed. The automatic weighing method of the drum washing machine which measures the weight of the laundry in the washing machine. Background technique [0002] The washing machine includes a body, a door, a water tank, a clothes tank, a drive and control system. The door is located on the front or top surface of the body for opening and closing. The water tank is fixed in the body by a suspension mechanism and is a circle that opens toward the door. Tube shape, the clothes tube is installed in the water tank, the driving system drives the motor to rotate, and the control system controls the entire washing process of the washing machine. [0003] N...

AI Technical Summary

Problems solved by technology

In this weight detection, the balance state is detected according to the ratio of the rising time to the falling time, and the weight is corrected according to the detection result. This method needs to test the rising time of the rotating speed and the falling time of the rotating speed separately, which will result in a longer test time

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