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:
Mar. 05, 2019
Filed:
Dec. 01, 2016
Applicant:
Röchling Automotive SE & Co. KG, Mannheim, DE;
Inventors:
Luca Marini, Besenello, IT;
Stefano Dalpez, Malè, IT;
Assignee:
Röchling Automotive SE & Co. KG, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/20 (2016.01); H02P 6/12 (2006.01); H02P 29/024 (2016.01); H02P 1/02 (2006.01);
U.S. Cl.
CPC ...
H02P 6/20 (2013.01); H02P 1/022 (2013.01); H02P 6/12 (2013.01); H02P 29/024 (2013.01);
Abstract
A method is provided for determining an operational readiness state of an electric motor, a pump motor for pumping an operating fluid, for example, an aqueous urea solution, in a vehicle. The method includes applying an electric drive voltage to the electric motor according to a prescribed drive voltage curve in order to drive a rotor of the electric motor to rotate through a prescribed angle of rotation, detecting a response behavior of the electric motor, and determining the state of the electric motor based on the results determined in step b).