Adaptive cooking control for an oven

Patent metadata

Field	Value
Publication number	US-10057946-B2
Application number	US-201113274600-A
Country	US
Kind code	B2
Filing date	Oct 17, 2011
Priority date	Oct 17, 2011
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

An oven includes a cooking chamber configured to receive a food product, a user interface configured to display information associated with processes employed for cooking, first and second energy sources, and a cooking controller. The first energy source provides primary heating and the second energy source provides secondary heating for the food product. The cooking controller executes instructions associated with a cooking program directing application of energy to the food product via the first or second energy sources. The cooking controller includes processing circuitry configured to monitor energy added to the food product via the first energy source in accordance with the cooking program, receive an indication of a change to a cooking parameter associated with a second energy source, and determine a modification to the cooking program by employing a modification algorithm based on the cooking parameter change.

First claim

That which is claimed:

1. An oven comprising:
a cooking chamber configured to receive a food product;
a user interface configured to display information associated with processes employed for cooking the food product;
a first heat source providing primary heating of the food product placed in the cooking chamber;
a second heat source providing secondary heating for the food product; and
a cooking controller operably coupled to the first and second heat sources to execute instructions associated with a cooking program directing application of energy to heat the food product via at least one of the first or second heat sources, the cooking controller including processing circuitry configured to:
monitor energy added to heat the food product via the first heat source in accordance with the cooking program;
receive an indication of an operator inserted change to a cooking parameter associated with the second heat source; and
determine a modification to the cooking program by employing a modification algorithm based on the cooking parameter change, the modification algorithm including instructions for determining a change to the energy to be applied via the first heat source to achieve a selected level of doneness associated with the cooking program,
wherein the selected level of doneness is associated with a corresponding target energy level for the food product, the change to the energy to be applied being determined based on a difference between an amount of energy provided by the first heat source up to a point in the cooking program at which the cooking parameter change was made, and energy remaining to achieve the corresponding target energy level based on the cooking parameter change associated with the second heat source.

2. The oven of claim 1 , wherein receiving the indication of the operator inserted change comprises receiving an indication of a change to an air temperature or air speed associated with adding energy via the second heat source.

3. The oven of claim 2 , wherein receiving the indication of the change comprises receiving a direct input to alter the air temperature or air speed via the user interface or receiving an input modifying a browning level or browning time via the user interface and determining a corresponding change to the air temperature or air speed.

4. The oven of claim 2 , wherein receiving the indication of the change comprises receiving an input modifying the cooking program relative to energy added by the first heat source or the second heat source either before or during execution of the cooking program.

5. The oven of claim 1 , wherein determining the modification to the cooking program comprises employing the modification algorithm to determine an updated program cooking time relating to application of energy via the first heat source.

6. The oven of claim 5 , wherein one of the first heat source or the second heat source is a radio frequency (RF) source, and wherein the updated cooking time is determined based on dividing an amount of energy to be delivered to the food product by a sum of average power delivered by the RF source and an estimate of average power delivered by convective sources.

7. The oven of claim 1 , wherein determining the modification to the cooking program comprises employing the modification algorithm to determine an updated countdown indicator relating to energy delivered by one or both of the first and second heat sources.

8. The oven of claim 1 , wherein determining the modification to the cooking program comprises employing the modification algorithm to determine an updated countdown indicator relating to a total amount of radio frequency (RF) energy delivered via the first heat source to achieve the selected doneness level.

9. The oven of claim 8 , wherein one of the first heat source or the second heat source is a radio frequency (RF) source, and wherein the updated countdown indicator is determined based on dividing a product of an updated cooking time and average power delivered by the RF source by an RF efficiency of the food product at the given mass.

10. The oven of claim 1 , wherein the selected level of doneness is determined based on an efficiency of a given mass of the food product.

11. The oven of claim 1 , wherein the cooking controller is configured to employ a food characterization parameter determined based at least in part on an initial temperature of the food product and the selected level of doneness in order to determine energy absorption within the food product.

12. A cooking controller for use in an oven, the oven including a first heat source providing primary heating of a food product placed in the oven and a second heat source providing secondary heating for the food product, the cooking controller operably coupled to the first and second heat sources to execute instructions associated with a cooking program directing application of energy to heat the food product via at least one of the first or second heat sources and comprising processing circuitry configured to:
monitor energy added to heat the food product via the first heat source in accordance with the cooking program;
receive an indication of an operator inserted change to a cooking parameter associated with the second heat source; and
determine a modification to the cooking program by employing a modification algorithm based on the cooking parameter change, the modification algorithm including instructions for determining a change to the energy to be applied via the first heat source to achieve a selected level of doneness associated with the cooking program,
wherein the selected level of doneness is associated with a corresponding target energy level for the food product, the change to the energy to be applied being determined based on a difference between an amount of energy provided by the first heat source up to a point in the cooking program at which the cooking parameter change was made, and energy remaining to achieve the corresponding target energy level based on the cooking parameter change associated with the second heat source.

13. The cooking controller of claim 12 , wherein receiving the indication of the operator inserted change comprises receiving an indication of a change to an air temperature or air speed associated with adding energy via the second heat source.

14. The cooking controller of claim 13 , wherein receiving the indication of the change comprises receiving a direct input to alter the air temperature or air speed via the user interface or receiving an input modifying a browning level or browning time via the user interface and determining a corresponding change to the air temperature or air speed.

15. The cooking controller of claim 13 , wherein receiving the indication of the change comprises receiving an input modifying the cooking program relative to energy added by the first heat source or the second heat source either before or during execution of the cooking program.

16. The cooking controller of claim 12 , wherein determining the modification to the cooking program comprises employing the modification algorithm to determine an updated program cooking time relating to application of energy via the first heat source.

17. The cooking controller of claim 16 , wherein one of the first heat source or the second heat source is a radio frequency (RF) source, and wherein the updated cooking time is determined based on dividing an amount of energy to be delivered to the food product by a sum of average power delivered by the RF source and an estimate of average power delivered by convective sources.

Assignees

• Mills Nigel G
• Cartwright Richard W
• Kice Richard A
• Illinois Tool Works

Inventors

• Mills Nigel G
• Cartwright Richard W
• Kice Richard A

Classifications

• H05B6/6435

  Aspects relating to the user interface of the microwave heating apparatus · CPC title

• H05B6/647

  Aspects related to microwave heating combined with other heating techniques · CPC title

• H05B1/0263

  Ovens · CPC title

• H05B6/687 Primary

  for cooking · CPC title