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:
Nov. 21, 2017
Filed:
Nov. 14, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Tino Merkel, Schwieberdingen, DE;
Andreas Koenig, Ostfildern, DE;
Marc Rudolph, Erligheim, DE;
Lingling Xie, Ludwigsburg-Eglosheim, DE;
Guenther Plapp, Filderstadt, DE;
Robret Bosch GmbH, Stuttgart, DE;
Abstract
The present invention provides a method and a device for operating an electric machine for a soft changeover from a normal or free-wheel mode to an active short-circuit. To this end, a voltage with which the electric machine is actuated is first reduced in a defined manner to a predefined, preferably very low value and then the phase connections of the electric machine are short-circuited. Excessively high overcurrents, particularly overcurrents greater than the nominal current of the electric machine, can thus be avoided.