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:
Nov. 22, 2011
Filed:
Jun. 01, 2005
Norbert Knab, Appenweier, DE;
Nikolas Haberl, Sinzheim, DE;
Frank Fischer, Buehl Neusatz, DE;
Joerg Eichhorn, Buehl, DE;
Norbert Knab, Appenweier, DE;
Nikolas Haberl, Sinzheim, DE;
Frank Fischer, Buehl Neusatz, DE;
Joerg Eichhorn, Buehl, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
Both a method and a use by this method of an apparatus for detecting blocking of a direct current motor (), in particular a direct current motor () for a blower of a motor vehicle, is presented. The direct current motor () is deactivated by a computer unit () with the aid of a switching means () for a defined time period (T). Within the defined time period (T), at least one subsequent time (t, t), an induced voltage (U) of the direct current motor () is measured and forwarded to the computer unit (). The direct current motor () remains deactivated if the induced voltage (U) undershoots a predetermined threshold value (U), or the direct current motor () is reactivated if the induced voltage (U) of the direct current motor () does not undershoot the predetermined threshold value (U).