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:
Oct. 17, 2006
Filed:
Jun. 27, 2003
Stefan Koch, Kappelrodeck, DE;
Nikolas Haberl, Lauf, DE;
Stefan Koch, Kappelrodeck, DE;
Nikolas Haberl, Lauf, DE;
Robert Bosch GmbH, , DE;
Abstract
The invention relates to Method to detect a sluggishness or the blocking of an electric drive (), which is triggered via a power semiconductor component (). The electric drive () can be operated in both a partial load range (PWM timing signal<100%) as well as in a full load range (PWM timing signal=100%), but always as a function of the timing of the PWM signal (). An evaluation circuit () is connected with a micro-controller (). Pulses generated within a time interval are detected in the evaluation circuit () from the current I flowing via the first power semiconductor component () and the number of detected pulses A*, A* are compared with a to-be-expected number of pulses A, A