Procedure for checking the functionality of an electric heating device
AssigneeRobert Bosch GmbH
InventorsBuelent Barcin, Jan Kaluza, Michael Gerlach, Horst Kleinknecht
Life of this patent
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Abstract
A procedure for checking the functionality of an electric heating device (10) with at least one PTC-element (13, 14) is suggested. The electric heating device (10) is operated at a battery voltage. When controlling the heating device (10) it is impinged with a current and at least one measuring value is detected, which represents the current that flows through the heating device. The measuring value for the current is compared to at least one reference value with a default tolerance width while considering the battery voltage. In the case of a measuring value that deviates from the reference value an error can be assumed.
Claims7
A procedure for checking the functionality of an electric heating device with at least one PTC-element, wherein the heating device is operated at a battery voltage and impinged with a current, wherein at least one measuring value is detected, which represents the current that flows through the heating device, wherein the measuring value for the current is compared to at least one reference while considering the battery voltage and in the case of a deviation of the measuring value from the reference value with a default tolerance width an error is assumed.
Dependencies are inferred from the claim text.