The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2013
Filed:
Nov. 20, 2009
Buelent Barcin, Stuttgart, DE;
Jan Kaluza, Boeblingen, DE;
Michael Gerlach, Marbach A.N., DE;
Horst Kleinknecht, Fichtenberg, DE;
Buelent Barcin, Stuttgart, DE;
Jan Kaluza, Boeblingen, DE;
Michael Gerlach, Marbach A.N., DE;
Horst Kleinknecht, Fichtenberg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A procedure for checking the functionality of an electric heating device () with at least one PTC-element () is suggested. The electric heating device () is operated at a battery voltage. When controlling the heating device () 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.