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:
May. 02, 2017
Filed:
Jun. 04, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Manfred Weiffen, Bietigheim-Bissingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for operating an asynchronous machine () comprising a rotor () and a stator (), in which a torque of the asynchronous machine () is adjusted by specifying a desired magnetic flux of a surrounding magnetic field of the stator () and specifying a desired slip between a rotational speed of the rotor () and the rotational speed of the surrounding magnetic field. According to the invention, at least in the load condition and when a rotary frequency of the surrounding magnetic field of the stator is equal to zero, the desired magnetic flux and/or the desired slip with constant torque is changed in such a way that an actual rotary frequency of the surrounding magnetic field is not equal to zero.