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:
Dec. 29, 2015
Filed:
Apr. 05, 2012
Christian Lingenfelser, Hambruecken, DE;
Eckart Mayer-john, Stuttgart, DE;
Gunther Goetting, Stuttgart, DE;
Christian Lingenfelser, Hambruecken, DE;
Eckart Mayer-John, Stuttgart, DE;
Gunther Goetting, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to an apparatus for estimating angles in a synchronous machine (), having an angle sensor device () which is designed to determine event-discrete measured values for a rotor angle (φ) of a rotor of the synchronous machine () and to output a measurement signal dependent on the determined measured values, an estimation device () which is designed to record current and/or voltage signals from the synchronous machine (), to calculate a deviation (Δφ) of the rotor angle (φ) of the rotor of the synchronous machine () from an expected rotor angle on the basis of the recorded current and/or voltage signals and to output a deviation signal dependent on the calculated deviation (Δφ), and a combining device () which is designed to receive the measurement signal and the deviation signal and to calculate an estimated value ({circumflex over (φ)}) for the rotor angle (φ) of the rotor of the synchronous machine () from a combination of the measurement signal and the deviation signal.