Washing machine and method of controlling the same

By using dual vibration sensors to control drum rotation based on tub and cabinet vibrations, the washing machine addresses vibration issues during spin-drying, enhancing stability and reducing noise.

US20260168152A1Pending Publication Date: 2026-06-18SAMSUNG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SAMSUNG ELECTRONICS CO LTD
Filing Date
2026-02-05
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Washing machines experience significant vibrations during spin-drying processes due to eccentric loads, which can cause movement and noise, and existing systems lack effective methods to dynamically adjust rotation parameters based on real-time vibration sensing to mitigate these issues.

⚗Method used

The washing machine incorporates a first vibration sensor to detect tub vibrations and a second vibration sensor to detect cabinet vibrations, with a processor controlling the drum's rotation based on these sensor inputs to adjust speed and time, identifying unbalanced legs or soft floors, and implementing vibration reduction strategies.

🎯Benefits of technology

This approach effectively reduces vibrations by dynamically adjusting the drum's rotation speed and time, minimizing machine movement and noise, and improving operational stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

A washing machine includes: a cabinet on a front side thereof with an inlet through which laundry is input; a tub inside the cabinet and having an opening corresponding to the inlet; a drum rotatably inside the tub; a motor configured to provide power for rotating the drum; a first vibration sensor configured to detect vibration generated from the tub; a second vibration sensor configured to detect vibration generated from the cabinet; and at least one processor. The at least one processor is configured to perform a spin-drying process according to a spin-drying profile defined by a rotational speed of the drum, and to control rotation of the drum based on a first vibration value corresponding to an output of the first vibration sensor and a second vibration value corresponding to an output of the second vibration sensor during a spin-drying process.
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