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Magnetorheological damper based active dewatering control method

A technology of a magnetorheological damper and a control method, which is applied to washing machine control devices, washing devices, textiles, and papermaking, and can solve problems such as large vibration, low service life of washing machines, and high noise, and reduce and improve damping force Safety and service life, effect of large damping force

Pending Publication Date: 2020-06-05
CHANGHONG MEILING CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an active dehydration control method based on a magneto-rheological damper, which solves the problems of large vibration and noise in the existing washing machine products, resulting in low service life of the washing machine

Method used

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  • Magnetorheological damper based active dewatering control method

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] see figure 1 As shown, an active dehydration control method based on a magnetorheological damper, including the following steps:

[0026] S1. Start the washing machine, start dehydration, and set the initial power supply voltage V0 of the magneto-rheological damper;

[0027] S2. Adjust the balance of the clothes, and perform eccentricity and weighing detection on the clothes;

[0028] S3. Determine whether the dehydration speed reaches N1, if yes, execute ...

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Abstract

The invention discloses a magnetorheological damper based active dewatering control method. The method comprises the following steps of starting dewatering, adjusting clothes, when the dewatering speed reaches N0, performing eccentricity and weighing detection on the clothes, judging whether the rotation speed can reach N1 or not, after the rotation speed rises to N1, starting a 3D displacement sensor to detect the amplitude of a suspension system at each rotation speed, providing different power supply voltages for a magnetorheological damper by a main control board according to detection data, and changing damping force of the magnetorheological damper. The vibration quantity of the current suspension system is judged according to the actually-measured displacement data, and the power supply voltage of the magnetorheological damper is timely adjusted to change the damping force of the magnetorheological damper, so that the purpose that a washing machine has relatively large damping force to suppress vibration in low-speed running and has relatively small damping force to reduce noise in high-speed running is achieved and the safety and the service life of the washing machine in adewatering operation process are improved and prolonged.

Description

technical field [0001] The invention belongs to the technical field of drum washing machines and relates to an active dehydration control method based on a magnetorheological damper Background technique [0002] At present, the practical dampers for most drum washing machines on the market are ordinary dampers of the damping grease type. The damping force of the damping force is a constant value. The force is uncontrollable. If the damping force is unreasonably selected during product development and design, it will not be possible to ensure that the washing machine has a large damping force to suppress vibration at low speed dehydration, and a small damping force to reduce noise at high speed. [0003] Most young people in modern times like to wash clothes at night. If the washing machine vibrates and makes a lot of noise at night, it will inevitably affect the user experience, thus causing doubts about the brand and product quality. The shortcoming of the traditional wa...

Claims

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Application Information

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IPC IPC(8): D06F33/40D06F33/48
Inventor 吴云贵毕飞龙王东生
Owner CHANGHONG MEILING CO LTD
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