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:
Apr. 25, 2006
Filed:
Sep. 22, 2004
Applicants:
Albert L. Markunas, Roscoe, IL (US);
Vijay K. Maddali, Rockford, IL (US);
William J. Peterson, Rockton, IL (US);
Charles Romenesko, Roscoe, IL (US);
Inventors:
Albert L. Markunas, Roscoe, IL (US);
Vijay K. Maddali, Rockford, IL (US);
William J. Peterson, Rockton, IL (US);
Charles Romenesko, Roscoe, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A carrier injection sensorless (CIS) starting control system that is capable of determining the angular position and velocity of a rotor for a wound field synchronous machine at or near rest and comprises north-south pole determination and a variable or dual frequency carrier signal for improved performance throughout the start sequence for the machine.