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:
Feb. 21, 2012
Filed:
May. 03, 2007
Applicant:
Andras Lelkes, Bad Durrheim, DE;
Inventor:
Andras Lelkes, Bad Durrheim, DE;
Assignee:
Papst Licensing GmbH & Co. KG, St. Georgen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a control unit for at least one electric motor, wherein the control unit performs open-loop or closed-loop control of the motor speed of the electric motor in such a way that in the case of control values in specific ranges which are typical of a fault when the setpoint value is being predefined, such a fault being, for example, a line break, a voltage failure or a short circuit, the control unit drives the motor with a predefined setpoint value which differs from the current control value.