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:
Dec. 30, 2014
Filed:
Jan. 25, 2011
Thomas Malich, Kappelrodeck, DE;
Volker Lurk, Offenburg, DE;
Gerald Roos, Achern, DE;
Nikolas Haberl, Sinzheim, DE;
Frank Fischer, Buehl, DE;
Christian Poddey, Oetigheim, DE;
Michael Koerner, Buehl, DE;
Jan Van Goethem, Gambsheim, DE;
Daniel Hofacker, Achern, DE;
Tobias Stiefel, Baden-Baden, DE;
Thomas Malich, Kappelrodeck, DE;
Volker Lurk, Offenburg, DE;
Gerald Roos, Achern, DE;
Nikolas Haberl, Sinzheim, DE;
Frank Fischer, Buehl, DE;
Christian Poddey, Oetigheim, DE;
Michael Koerner, Buehl, DE;
Jan Van Goethem, Gambsheim, DE;
Daniel Hofacker, Achern, DE;
Tobias Stiefel, Baden-Baden, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for detecting blocking or sluggishness (M, M) of a DC motor (). The method comprises the following steps: applying a voltage pulse (U=O) to the DC motor (); monitoring a motor current (I) flowing through the DC motor (); detecting a maximum value of the motor current (I) following the application of the voltage pulse; checking whether a change in the motor current (I) after reaching the maximum value exceeds a specific amount; signalling the blocking or the sluggishness (M, M) of the DC motor () if the change in the motor current (I) after reaching the maximum value exceeds the specific amount.