Laundry Drum Tumble Control for Load Distribution and Fabric Care
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Solution Overview
Problem
Contemporary laundry treating appliances do not account for the distribution of laundry load within the rotating drum, which can change during operation, affecting the effectiveness of cycle phases and overall performance.
Innovation Solution
Determining the rotational speed of the drum based on the predetermined movement of laundry and setting operating parameters accordingly to optimize load distribution and mechanical action within the drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drum rotates at predetermined set speeds according to pre-programmed cycles, then the operation is simple and reliable, but the load distribution cannot be optimized and fabric damage may increase
Solution Approach 1:
The system uses load distribution sensors to detect the actual laundry load distribution within the drum and feeds this information back to the controller. The controller then adjusts the drum rotation speed in real-time to optimize mechanical action and prevent fabric damage, while maintaining reliable operation through automated control.
Solution Approach 2:
The drum rotation speed is changed from fixed predetermined values to dynamically adjustable speeds. The controller continuously modifies the rotation speed based on detected load distribution conditions, enabling the system to adapt to varying load configurations and minimize fabric damage while maintaining operational reliability.
2Object-affected harmful factors
If the drum rotation speed is adjusted to optimize load distribution, then fabric damage is reduced and performance is improved, but the control system becomes more complex
Solution Approach 1:
The control system incorporates load distribution sensors that provide feedback to the controller. This automated feedback loop enables intelligent adjustment of drum speed based on actual load conditions, reducing fabric damage without requiring complex manual intervention or overly sophisticated control algorithms.
Solution Approach 2:
The system performs self-adjustment of drum rotation speed based on sensor input and controller processing. The appliance autonomously optimizes its own operation parameters without user intervention, managing the increased control complexity through automated self-regulation while improving fabric care.
3Ease of operation
If pre-programmed cycles are used with fixed rotation speeds, then the device complexity is low and ease of operation is high, but the productivity and energy efficiency are suboptimal
Solution Approach 1:
The system maintains simple pre-programmed cycle selections for user convenience, but dynamically adjusts drum rotation speeds within these cycles based on detected load distribution. This enables optimized drying efficiency and energy consumption without complicating user operation, as the automation handles the complex adjustments transparently.
Solution Approach 2:
The controller dynamically changes operational parameters (drum rotation speed) during pre-programmed cycles based on load distribution detection. This allows the system to optimize drying efficiency and energy usage by adapting parameters to actual conditions, while users continue to benefit from simple cycle selection interfaces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the performance of laundry treating appliances by improving load distribution, reducing fabric damage, and optimizing drying cycles, leading to better user satisfaction and energy efficiency.
Implementation Method 1
determining a rotational speed of the drum corresponding to a predetermined movement of the laundry within the drum
Data Source
AI summary
An apparatus and a method of operating a laundry treating appliance treating laundry according to a cycle of operation including determining a rotational speed of the drum corresponding to a predetermined movement of the laundry within the drum and setting an operating parameter for the cycle of operation based on the determined rotational speed of the drum corresponding to the predetermined movement of the laundry.