Laundry Auto-Dosing Control Modes for Multi-Agent Compartments
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Solution Overview
Problem
Existing laundry appliances with auto-dosing systems lack versatility, forcing users to either leave unused compartments empty or manually change detergents between cycles, limiting the automation's effectiveness.
Innovation Solution
A laundry appliance with a drawer containing multiple compartments for different treatment agents, equipped with metering devices and a control unit that allows users to select from various control modes for customizable dosing based on the types and amounts of agents, ensuring efficient use of agents and preventing incorrect dosing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the laundry appliance uses fixed multi-dose compartments for specific treatment agents, then the auto-dosing functionality is simplified, but the versatility and adaptability to user needs deteriorates
Solution Approach 1:
The patent implements dynamic control modes that allow the system to adapt between different dosing strategies. The control unit can switch between a first control mode (using only the first multi-dose compartment) and a second control mode (using both compartments), enabling the system to dynamically adjust to user preferences and treatment requirements while maintaining automated operation
Solution Approach 2:
The system is designed with universal compartments that can handle different types of treatment agents. Both the first and second multi-dose compartments are configured to contain various treatment agents, and the control unit can universally manage dosing from either or both compartments depending on the selected control mode, making the system adaptable to different user scenarios
2Adaptability or versatility
If the laundry appliance provides multiple control modes for different dosing strategies, then the versatility and adaptability improve, but the device complexity increases
Solution Approach 1:
The control system is segmented into distinct control modes that can be independently selected and managed. The control unit processes different control modes as separate operational configurations, allowing complex functionality to be broken down into manageable segments that simplify the overall control architecture while maintaining versatility
Solution Approach 2:
The system manages complexity by changing operational parameters rather than adding physical components. Different control modes are implemented through parameter changes in the control unit's operation, such as which compartments to access and how to dose, rather than requiring additional mechanical or electrical components for each mode
3Productivity
If the system allows flexible selection of treatment agents from multiple compartments, then the efficiency of treatment agent use improves, but the risk of incorrect dosing increases
Solution Approach 1:
The control unit implements feedback mechanisms to monitor and verify dosing operations. By tracking which compartment is selected, what control mode is active, and how much treatment agent is dispensed, the system can verify correct operation and prevent incorrect dosing while maintaining flexible agent selection across multiple compartments
Solution Approach 2:
The system performs preliminary verification and configuration before dosing occurs. The control unit pre-configures the dosing parameters based on the selected control mode and compartment selection, ensuring that the correct dosing strategy is established before treatment agents are dispensed, thereby preventing incorrect dosing while enabling efficient agent use
Data Source
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AI summary
A laundry treatment appliance (100) for treating laundry according to a selected one among a plurality of treatment cycles is provided. Said at least one treatment cycle comprises a first phase and a second phase. The laundry treatment appliance comprises: - a drawer comprising a first compartment (210(1)) and a second compartment (210(1)), the first compartment being adapted to contain multiple doses of a first type of laundry treatment agent and the second compartment being adapted to contain multiple doses of the first type of laundry treatment agent or of a second type of laundry treatment agent; - first and second metering devices adapted to draw up treatment agent doses from the first (210(1)) and second (210(2)) compartments, respectively; - a control unit (130) adapted to control the first and second metering devices; - a selection unit adapted to select a control mode among a first, second and third control modes, the control unit being configured to control the first and second metering devices according to the selected control mode, wherein - in the first control mode, a selected metering device between said first and second metering devices is caused to draw up a treatment agent dose during a selected phase between the first phase and the second phase, and the other metering is kept off during both the first and second phases; - in the second control mode, both said first and second metering devices are caused to draw up treatment agent doses during at least one between the first phase and the second phase; - in the third control mode a selected metering device between said first and second metering devices is caused to draw up a treatment agent dose during a selected one phase between the first phase and the second phase, and the other metering device is caused to draw up a treatment agent dose during another phase between the first phase and the second phase.