Method for treating clothes in a washing machine

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Solution Overview

Problem

Current laundry treatment methods in washing machines lack flexibility for users to customize washing programs, particularly for textile finishing agents, and do not allow for the selection of agent type or amount, nor do they accommodate different consistencies like liquids, gels, or powders effectively.

Innovation Solution

A method that allows users to stop and restart washing programs at predetermined times to add or remove laundry or treatment agents, using a control device to manage interruptions based on sensor data, enabling the use of various textile finishing agents in different forms and optimizing their application during specific program steps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a washing machine uses fixed washing programs with predetermined rinse cycles, then the machine operates automatically with minimal user intervention, but the user cannot customize the addition of textile finishing agents or modify program steps

Engineering Contradiction:
Improveautomatic operationVSAvoidcustomization of washing program
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The washing machine system transitions from static, fixed washing programs to dynamic, user-modifiable programs. Users can interrupt the washing process at predetermined times, add textile finishing agents in various forms (liquid, gel, powder), and restart the program. The control device enables real-time program modification while maintaining automatic operation, allowing the system to adapt to user needs without losing ease of operation.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the washing machine allows manual addition of fabric softener with automatic program modification, then the system becomes more adaptable to user needs, but the device complexity increases

Engineering Contradiction:
Improveflexibility in agent additionVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The washing machine system enables users to perform finishing operations themselves by providing the capability to manually add textile finishing agents (liquid, gel, or powder forms) during the washing cycle. The control device automatically manages the program interruption and resumption, reducing the need for complex automated dosing systems while maintaining high adaptability to user preferences.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the washing machine provides detailed instructions and warnings before use, then inexperienced users can operate the machine effectively, but the user interface complexity increases

Engineering Contradiction:
Improveuser guidanceVSAvoidinterface complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The washing machine system provides instructions and warnings to users before the washing program starts or before critical operations. The control device displays guidance information in advance, allowing users to understand how to add textile finishing agents and modify programs without encountering unexpected complexity during operation. This preliminary information delivery simplifies the actual user interaction.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2383381B1Method for treating clothes in a washing machine
Publication Date: 2019.06.19 BSH HAUSGERATE GMBH
  • EP2383381B1 patent drawingFigure 1
  • EP2383381B1 patent drawingFigure 2

AI summary

The method involves providing a washing machine (1) with a water supply (17) and a control device, where a washing program is stopped after a certain time period. A time period is provided by a sensor by measuring sensor signal from the control device.