Oven Cooking Time Calculation to Eliminate Separate Preheating
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Solution Overview
Problem
Conventional oven cooking methods require a separate preheating process, which is energy-intensive, inconvenient, and can lead to misuse, such as unnecessary preheating or premature food placement, and does not account for variations in oven heating behavior.
Innovation Solution
A method that calculates a derived cooking time by adding an empirically determined additional time to the entered cooking time, allowing for integrated preheating without a separate preheating process, taking into account the target temperature, type of food, weight, and initial oven temperature, and adjusts the cooking time based on measured heating behavior to ensure a consistent cooking result.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate preheating process is used before cooking, then the cooking boundary conditions are consistent and reliable, but the total time required increases and energy consumption increases
Solution Approach 1:
The patent merges the preheating process with the cooking process by calculating a derived cooking time that includes both preheating and cooking phases. The control unit integrates these two previously separate operations into a single continuous process, eliminating the need for users to wait for preheating to complete before cooking begins.
Solution Approach 2:
The patent performs preliminary calculation of the derived cooking time based on empirically determined data about the specific oven's heating characteristics. This preliminary action allows the system to compensate for the lack of separate preheating by adjusting the cooking time in advance, ensuring consistent results without the traditional preheating wait.
2Reliability
If a separate preheating process is used before cooking, then the cooking process can proceed under constant boundary conditions, but energy consumption increases
Solution Approach 1:
The patent combines preheating and cooking into a single integrated process that operates continuously without interruption. By merging these phases, the system eliminates the energy waste associated with maintaining high temperature during a separate preheating phase before cooking begins, while still achieving stable cooking conditions through derived time calculation.
3Adaptability or versatility
If the oven heating behavior varies between different ovens, then standard cooking times cannot be applied universally, but users must manually adjust settings increasing complexity
Solution Approach 1:
The patent implements self-service by having the control unit automatically determine the derived cooking time based on empirically determined heating characteristics specific to each oven. The system serves itself by using stored data about its own heating behavior to calculate appropriate cooking times without requiring user knowledge or manual adjustment of complex parameters.
Solution Approach 2:
The patent uses feedback from empirically determined heating behavior data to automatically adjust cooking times. The control unit incorporates feedback about how the specific oven heats up and maintains temperature to calculate derived cooking times that are optimized for that particular oven's characteristics, eliminating the need for users to manually compensate for variations.
4Measurement precision
If users manually manage preheating and cooking separately, then cooking parameters can be precisely controlled, but user error and misuse increase
Solution Approach 1:
The patent merges separate user actions for preheating and cooking into a single automated process. By combining these operations and calculating the derived cooking time automatically, the system eliminates opportunities for user error such as starting cooking before preheating is complete or misjudging the required time, while maintaining precise control over the cooking parameters.
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 reduces the total cooking time while maintaining the same cooking result as conventional preheating, saving energy, simplifying user operations, and preventing misuse, while ensuring a precise cooking outcome by integrating preheating into the cooking process.
Implementation Method 1
an oven, having at least the following steps: entering a target temperature and a cooking time for a loaded oven, provided together with a preheating process for this target temperature
Implementation Method 2
the actual cooking process can essentially take place under constant boundary conditions... since the heating properties of the baking ovens can vary greatly
Data Source
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AI summary
The method involves inputting a cooking time (tg) and a target temperature (Ts). A derived cooking time (tg2) is determined from the input cooking time and the input target temperature by adding the input cooking time with an empirically determined time premium (x). The time premium is determined as a function of food type, function of food weight, function of initial temperature, function of adjusted heating type or function of input cooking time based on the input target temperature. An independent claim is also included for a household appliance comprising a baking-oven.