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:
Jul. 23, 2019
Filed:
Jun. 07, 2016
Robert Bosch Gmbh, Stuttgart, DE;
Benjamin Lechner, Neuhausen, DE;
Daniel Raichle, Vaihingen, DE;
Daniel Zirkel, Wiernsheim-Serres, DE;
Michael Ungermann, Darmstadt, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for detecting a short circuit () of a resolver exciter line () comprising the steps of: measuring () the excitation voltage (U(t) for the resolver () at a number of points in time during each excitation period; determining () the amplitude of the excitation voltage; starting a diagnostic mode () having the following steps (bis) if the amplitude of the excitation voltage does not reach a first threshold value; retrieving () the time-dependent voltage curves U(t) of the first and the second exciter line (H;) with respect to ground at the number of points in time; calculating () the amplitudes and the offset values of the time-dependent voltage curves; identifying () the exciter line that has a short circuit by determining that the calculated amplitudes do not exceed a second threshold value; identifying () the potential to which the short-circuited line (H or L) can be connected by comparing the offset values to third threshold values.