Method and device for identifying a temperature sensor connected to a control unit
First Claim
1. A method for identifying a temperature sensor of a heating device, wherein said temperature sensor is positioned so as to be directly heated by said heating device, wherein said temperature sensor is connected to a control unit and evaluated by said control unit, comprising the steps of:
- measuring a resistance value of said connected temperature sensor in response to connecting said control unit to an operating voltage;
comparing said resistance value with at least one preset limit value, wherein said preset limit value characterizes at least two different groups of temperature sensors with respect to said resistance value of said at least two different groups of temperature sensors;
classifying said temperature sensor as belonging to a first group of temperature sensors if said resistance value exceeds said limit value andclassifying said temperature sensor as belonging to a second group of temperature sensors if said resistance value is below said limit value; and
controlling and evaluating said temperature sensor by said control unit by using calibration data to calibrate said temperature sensor using said resistance value according to one of said groups of said temperature sensors.
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Accused Products
Abstract
A controller of a hob is connected to a temperature sensor of a radiation based heating element. In principle, two different groups of temperature sensors can be used, whose resistance values differ by approximately a factor of three. When the hob is first used, the resistance of the temperature sensor is measured at room temperature and is classified in one of the two groups of temperature sensors on the basis of a limit value between the two typical temperature profiles of the groups of temperature sensors. On the basis of this, calibration of the controller is carried out for the purpose of adjusting to the established group to which the temperature sensor belongs.
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Citations
14 Claims
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1. A method for identifying a temperature sensor of a heating device, wherein said temperature sensor is positioned so as to be directly heated by said heating device, wherein said temperature sensor is connected to a control unit and evaluated by said control unit, comprising the steps of:
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measuring a resistance value of said connected temperature sensor in response to connecting said control unit to an operating voltage; comparing said resistance value with at least one preset limit value, wherein said preset limit value characterizes at least two different groups of temperature sensors with respect to said resistance value of said at least two different groups of temperature sensors; classifying said temperature sensor as belonging to a first group of temperature sensors if said resistance value exceeds said limit value and classifying said temperature sensor as belonging to a second group of temperature sensors if said resistance value is below said limit value; and controlling and evaluating said temperature sensor by said control unit by using calibration data to calibrate said temperature sensor using said resistance value according to one of said groups of said temperature sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification