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:
Nov. 17, 1998
Filed:
May. 14, 1997
Applicant:
Inventor:
Roy A McCann, Kettering, OH (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318701 ; 318254 ;
Abstract
A method and a preferred hardware implementation for selectively energizing a motor winding to maximize its efficiency and output torque under conditions of varying rotor speed, winding temperature, and supply voltage. Motor sensors generate operating condition signals that are transformed by processing circuitry into independent parameters in the translation and dilation domain from which optimal turn-on and turn-off or 'conduction angles' are determined. The optimal conduction angles are processed by circuitry to generate actuation signals that selectively control the delivery of energy to the motor winding.