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:
Aug. 02, 2022
Filed:
Dec. 17, 2018
Robert Bosch Gmbh, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for operating an electric synchronous machine, having the steps of: —generating centered pulse-width-modulated switching signals for switching elements (T. . . T) of half-bridges, wherein two switching elements (T. . . T) are connected to a respective half-bridge in each case; second switching elements (T. . . T) of each half-bridge are actuated in a complementary manner to the first switching elements (T. . . T) of each half-bridge if a sufficient minimum measurement duration (T) is thereby provided during which the switching signals of switching elements (T. . . T) of two half-bridges lie at different potentials; —otherwise: —generating pulse-width-modulated switching signals for the switching elements (T. . . T) of the half-bridges, said switching signals deviating from the center at least to such a degree that a sufficient minimum measurement duration (T) is provided, wherein —the switching signals of the switching elements (T. . . T) are designed such that temporal changes corresponding to the minimum measurement duration (TM) in the switching signals of the switching elements (T. . . T) are prevented; and —carrying out a 1-shunt current measurement within the provided minimum measurement duration T).