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:
Sep. 10, 2019
Filed:
Oct. 28, 2016
Robert Bosch Gmbh, Stuttgart, DE;
Fabio Magini, Hemmingen, DE;
Manuel Mueller, Kisslegg, DE;
Michael Wohlfarth, Gerlingen, DE;
Miriam Riederer, Fellbach, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for determining a speed (nG) of a generator unit which has an electric machine () with a rotor winding () and a stator winding () and a rectifier () connected thereto, via which rectifier the electric machine () is connected to an electrical system () of a motor vehicle, the speed (nG) being determined depending on the plot of an excitation current (IE) flowing through the rotor winding () of the electric machine (). In particular, the speed is determined from a known relationship between the speed, the frequency of the excitation current, the number of pole pairs and optionally the number of phases when there is an error that leads to a constant phase voltage being output.