Cooking Temperature and Power Control

• US 20150082995A1
• Filed: 12/01/2014
• Published: 03/26/2015
• Est. Priority Date: 03/29/2011
• Status: Active Grant

• Current Assignee: Bose Corporation
• Original Assignee: Bose Corporation
• Inventors: Broders, Adam, Ickler, Christopher B., Jacob, Kenneth D.
• Granted Patent: US 9,131,537 B2
• Time in Patent Office: Days
• US Class Current: 99/331
• CPC Class Codes: A47J 36/321 the electronic control being performed over a network, e.g. by means of a handheld device
• CPC Class Codes: F24C 3/126 on ranges
• CPC Class Codes: F24C 7/086 touch control
• CPC Class Codes: F24C 7/087 of electric circuits regulating heat
• CPC Class Codes: G05D 23/1902 characterised by the use of a variable reference value
• CPC Class Codes: H05B 2213/07 Heating plates with temperature control means
• CPC Class Codes: H05B 6/062 for cooking plates or the like

Abstract

A system and method for controlling the power delivered to cookware by a power control system that comprises a heating control user interface that is set by the user to a particular heating control user interface set point within an operating range. A controller derives from the heating control user interface set point a desired cookware temperature set point, and, over at least a first portion of the operating range that encompasses the boiling range, also derives from the heating control user interface set point a maximum limit of power that can be delivered to the cookware to maintain the cookware at the desired cookware temperature set point. The maximum power limit varies monotonically over the first portion of the operating range.

Claims

1. A device configured to operate, over an operating range, a cooking system used for heating a cooking utensil, where the cooking system comprises a temperature sensor that senses a temperature of the cooking utensil, the device comprising:

a controller that is input with the sensed temperature of the cooking utensil and a particular temperature representing the boiling point;

wherein the controller is configured to determine, based on the sensed temperature of the cooking utensil and the particular temperature representing the boiling point, a command to control the heating of the cooking utensil, so as to maintain the cooking temperature at the particular temperature representing the boiling point, and output the command to the cooking system; and

wherein the controller, over a portion of the operating range that encompasses the boiling point, determines a maximum limit of the power that can be delivered to the cookware to maintain the cookware at a desired cookware temperature set point, wherein the maximum power limit over the first portion of the operating range increases as the control is turned up.

2. A device configured to operate a cooking system that delivers power to heat cookware, controllable from zero power up to 100% power, where the cooking system comprises a user-manipulated heating control user interface that is adapted to be turned up and turned down by the user to a particular heating control user interface set point within a temperature operating range that comprises a first portion that encompasses the boiling point, a second portion that is below the first portion and a third portion that is above the second portion, the device comprising:

a controller that is input with the user control setting and is configured to determine a command to control the heating of the cookware and output the command to the cooking system;

wherein the controller determines a maximum limit of the power that can be delivered to the cookware, wherein the maximum power limit over the first portion of the operating range increases as the control is turned up, and wherein over the second and third portions of the operating range the maximum power limit is 100% power.

3. A device configured to operate a cooking system that delivers power to heat cookware, where the cooking system comprises a user-manipulated heating control user interface that is adapted to be turned up and turned down by the user to a particular heating control user interface set point within a temperature operating range that comprises a boiling temperature range that encompasses the boiling point, the device comprising:

a controller that is input with the user control setting and is configured to determine a command to control the heating of the cookware and output the command to the cooking system;

wherein the controller output command is operative to control the temperature of the cookware, and over the boiling temperature range the controller output command is operable to limit the maximum power that can be delivered to the cookware.