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:
Feb. 25, 2020
Filed:
Nov. 30, 2016
Seg Automotive Germany Gmbh, Stuttgart, DE;
Julian Roesner, Untergruppenbach, DE;
SEG AUTOMOTIVE GERMANY GMBH, Stuttgart, DE;
Abstract
The invention relates to a method for switching off a multi-phase electric machine () in a motor vehicle, the multi-phase electric machine () comprising a rotor having a rotor winding () and a stator having a multi-phase stator winding (), wherein in a block mode () of the electric machine () a parameter influencing a synchronous generated voltage vector (U) of a synchronous generated voltage is adjusted such that the synchronous generated voltage reaches a first threshold value (S), wherein the block mode () is deactivated when the first threshold value (S) is reached and a PWM mode () for applying a phase voltage with a phase voltage vector (U) is activated, wherein the phase voltage vector (U) and the synchronous generated voltage vector (U) are varied in PWM mode () until the parameter influencing the synchronous generated voltage reaches a further threshold value (S), wherein the phase voltage is switched off when the further threshold value (S) is reached. Furthermore, the invention relates to a computing unit () configured to carry out the method.