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. 11, 2025
Filed:
Oct. 14, 2021
Robert Bosch Gmbh, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for operating an electric machine () comprising a rotatably mounted rotor and a motor winding that is electrically connected to an electrical energy store () by means of a power electronics (). In said method, the machine () and/or an apparatus comprising the machine () is/are monitored in respect of fault events, and the motor winding is short-circuited by triggering the power electronics () upon detection of a fault event. According to the invention, a desired trajectory (T) for an actual current vector (i) of an electric motor current flowing through the motor winding is ascertained, said desired trajectory (T) extending from a current actual working point (AP) of the machine () to a short-circuit working point (AP) of the machine (), a pilot control action is predicted according to the desired trajectory (T), and the power electronics () are triggered to short-circuit the motor winding according to the pilot control action in such a way that when the motor winding is short-circuited, a curve (V) of the actual current vector (i) at least substantially matches the desired trajectory (T).