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. 28, 2023
Filed:
Oct. 21, 2020
Robert Bosch Gmbh, Stuttgart, DE;
Michele Hirsch, Esslingen, DE;
Sebastian Paulus, Esslingen am Neckar, DE;
Wei-Lung Lee, Bietigheim-Bissingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method () for calibrating a controller of an electric machine (). The method comprises the following steps: specifying () a first signal (S_) for generating a sinusoidal phase current for energising a winding of an electric machine (); superposing () the first signal (S_) with a test signal (S_Test_i) in order to generate a harmonic oscillation with a predetermined excitation amplitude and/or phase position relative to the phase current, which harmonic oscillation superposes the phase current; detecting () a response signal (S_Antw_i), resulting from the superposition of the phase current and the harmonic oscillation, by means of a sensor (); determining () a calibrated signal (S_kal) for generating a harmonic oscillation with a predetermined excitation amplitude and a phase position relative to the phase current on the basis of a determined minimum of a response plane (A_Antw); operating () the controller () of the electric machine () on the basis of the determined minimum.