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. 09, 2018
Filed:
Feb. 28, 2017
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Hassan Lamsahel, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
The present disclosure provides a method for monitoring a rotor position sensor of a PSM machine having at least three phases operated by a field oriented control, where the electrical angle of the PSM machine may corresponds with a rotor position. A first calculation of the electrical angle of the PSM machine may be based on a measured mechanical rotor position and the pole-pair number of the PSM machine. A second calculation of the electrical angle of the PSM machine may be based on the phase of a phase current indicator and regulated target currents in the d,q-coordinate system. The method may include a comparison of the values of the respective electrical angles of the PSM machine determined by the first calculation and the second calculation.