Washing machine and weighing method and weighing device thereof
A weighing device and washing machine technology, applied in the field of washing machines, can solve problems such as failure to start, the washing machine hits the bucket, and the maximum speed cannot be reached, and achieves the effect of improving weighing accuracy and avoiding data errors.
Active Publication Date: 2020-08-07
WUXI FILIN ELECTRONICS CO LTD
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Problems solved by technology
[0003] However, for a large-capacity washing machine, if the load is large, the power changes nonlinearly during the acceleration phase, causing the power consumption during the acceleration phase to be greater than the power consumption during the small load. If you continue to use the same weighing factor for data fitting, it will be The weight error of the calculated load is relatively large, which may lead to problems such as hitting the bucket when the washing machine is dehydrating, failure to start, and failure to reach the maximum speed, which will affect the washing effect of the washing machine
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[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0030] The present invention is made based on the research and understanding of the following problems:
[0031] During the acceleration process of the washing machine, if the load is small, the electric energy consumed by the motor will change linearly, but if the load is large, such as over 18kg, such as figure 1 As shown, as the speed of the motor rises to a higher speed V, compared with a small load, the operating power of the motor is higher at the same speed, resulting in higher power consumption by the motor during the acc...
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The invention discloses a washing machine and a weighing method and a weighing device thereof. The method comprises the steps that after a weighing signal is received, the rotating speed of a motor ofthe washing machine is controlled to gradually rise to a first rotating speed, and the motor runs for a first preset time at a constant speed of the first rotating speed so as to enable the washing machine to enter a constant speed stage; the first turn number of the accumulated rotation of the motor and the first electric energy consumed by the motor in the constant speed stage are acquired; themotor is controlled to accelerate to a second rotating speed in a second time, so that the washing machine enters an acceleration stage; the second turn number of the accumulated rotation of the motor and the second electric energy consumed by the motor in the acceleration stage are acquired; a weighing coefficient is acquired according to the second electric energy; and the weight of a load is determined according to the first turn number, the first electric energy, the weighing coefficient, the second turn number and the second electric energy. According to the method, the weighing coefficient is re-determined according to the electric energy consumed by the motor in the acceleration stage, the data error generated by fitting with a same curve is avoided, and the weighing precision is improved.
Description
technical field [0001] The invention relates to the technical field of washing machines, in particular to a washing machine weighing method, a washing machine weighing device, a washing machine and a non-transitory computer-readable storage medium. Background technique [0002] At present, the weighing function of the washing machine generally obtains the weight of the load in the bucket by obtaining data such as the power in the constant speed stage and the power in the acceleration stage, and uses a fixed weighing coefficient to perform data fitting. [0003] However, for a large-capacity washing machine, if the load is large, the power changes nonlinearly during the acceleration phase, causing the power consumption during the acceleration phase to be greater than the power consumption during the small load. If you continue to use the same weighing factor for data fitting, it will be This results in large errors in the weight of the calculated load, which may lead to probl...
Claims
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IPC IPC(8): D06F34/14D06F34/18D06F34/04D06F105/46D06F103/38
Inventor 王小梅
Owner WUXI FILIN ELECTRONICS CO LTD