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:
Jul. 23, 2002
Filed:
Sep. 06, 2000
Applicant:
Inventor:
Engelbert Lu, Ann Arbor, MI (US);
Assignee:
TRW Inc., Lyndhurst, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 7/00 ;
U.S. Cl.
CPC ...
H02P 7/00 ;
Abstract
An apparatus ( ) for controlling an electric motor ( ) having a plurality of motor phases includes a motor controller ( ) that controls energization of each phase of the plurality of motor phases. A compensation circuit ( ) is associated with each phase of the plurality of motor phases. The compensation circuit ( ) of one phase of the plurality of motor phases adjusts a control parameter of another phase of the plurality of motor phases an amount functionally related to an electrical characteristic of the one phase in response to determining a diminished operating characteristic of the one phase.