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. 04, 2019
Filed:
Jun. 09, 2015
Robert Bosch Gmbh, Stuttgart, DE;
Arunkumar Motaganahalli Srinivasamurthy, Stuttgart, DE;
Julian Roesner, Untergruppenbach, DE;
Robert Bosch GmbH, Stuttgart, DE;
SEG Automotive Germany GmbH, Stuttgart, DE;
Abstract
A method for determining the phase currents of an electric machine having a power converter, and a stator, the power converter having, for each phase, an upper branch having an upper switch and a lower branch having a lower switch, all the upper branches being connected to an upper DC voltage terminal and all the lower branches to a lower DC voltage terminal. The power converter is operated in an active rectification mode in which each upper switch is closed only as long as a phase voltage at the relevant upper switch is higher than a voltage at the upper DC voltage terminal, and each lower switch being closed only as long as a phase voltage at the relevant lower switch is lower than a voltage at the lower DC voltage terminal; phase branch currents being measured in all the lower branches.