Appliance Heating Cycle Control for Closed-Loop Cooking Response
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional closed loop cooking systems in appliances fail to adjust the power cycle period appropriately and rapidly in response to varying cooking conditions, leading to inefficiencies in maintaining desired cooking temperatures.
Innovation Solution
A controller adjusts the cycle period time based on temperature measurements, identifying heating and cooking events, and calculates recovery period parameters to dynamically modify the power cycle period, considering factors like food type, quantity, and cookware material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed cycle period is used for power control, then the control system is simple and stable, but the appliance cannot adjust appropriately and rapidly in all situations
Solution Approach 1:
The patent implements dynamic cycle period adjustment by monitoring temperature measurements and automatically modifying the cycle period based on heating events detected. The controller transitions from a static fixed cycle period to a dynamic adjustable cycle period that responds to real-time cooking conditions, enabling the system to adapt to varying heating requirements while maintaining closed-loop control stability.
Solution Approach 2:
The patent changes the cycle period parameter from a fixed value to a variable parameter that is adjusted based on detected heating events. The controller modifies the cycle period parameter in response to temperature measurements, allowing the system to optimize power delivery characteristics for different cooking scenarios without requiring manual intervention or complex reconfiguration.
2Speed
If the cycle period is adjusted rapidly in response to temperature changes, then the appliance responds appropriately to cooking conditions, but the control system becomes more complex
Solution Approach 1:
The patent employs feedback control by continuously monitoring temperature measurements and using this information to detect heating events and adjust the cycle period accordingly. The closed-loop system uses temperature feedback to automatically modify power delivery characteristics, enabling rapid response to cooking conditions changes while maintaining systematic control through the feedback mechanism.
Solution Approach 2:
The control system performs self-adjustment by automatically detecting heating events through temperature monitoring and autonomously modifying the cycle period without external intervention. The system serves itself by using its own temperature measurements to trigger appropriate control actions, reducing the need for complex external control algorithms or manual programming.
3Adaptability or versatility
If the duty cycle is changed to produce different power levels, then the average power is adjusted, but the cycle time remains fixed and cannot adapt to all situations
Solution Approach 1:
The patent makes the cycle period dynamic by adjusting it in response to detected heating events, transitioning from a static time parameter to a adaptive one. This allows the system to optimize both the timing and duration of power delivery cycles, enabling faster and more appropriate responses to varying power requirements compared to fixed cycle time approaches.
Data Source
AI summary
A method of closed loop cooking on an appliance includes monitoring, by a controller, a temperature measurement from a sensor indicative of a cooking temperature during a cooking operation. Comparing, by the controller, the temperature measurement to a set temperature of the cooking operation. Determining, by the controller, a heating event defined by the temperature measurement. Adjusting, by the controller, a cycle period time for a heating element. The cycle period time is associated with the heating event.