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:
Jun. 23, 2015
Filed:
May. 13, 2011
Holger Niemann, Ludwigsburg, DE;
Roland Schleser, Saarbruecken, DE;
Daniel Kanth, Ludwigsburg, DE;
Andreas Heyl, Ludwigsburg, DE;
Holger Niemann, Ludwigsburg, DE;
Roland Schleser, Saarbruecken, DE;
Daniel Kanth, Ludwigsburg, DE;
Andreas Heyl, Ludwigsburg, DE;
ROBERT BOSCH GMBH, Stuttgart, DE;
Abstract
In a method for operating an at least three-phase electric machine used as a drive assembly in a motor vehicle, which is actuated via an inverter, the inverter including switching elements in the form of half bridges which are in each case electrically connected to a respective phase of the electric machine, when a first switching element of a first half bridge connected to a first phase is permanently closed/opened on account of failure, a second switching element of the first half bridge is permanently opened/closed and, in a first angular range of an electrical rotation, which is uninfluenced by the first phase, all switching elements of the additional half bridges are actuated in the usual manner.