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Method and system for controlling a synchronous machine over full operating range

United States Patent

June 18, 2002
View the Complete Patent at the US Patent & Trademark Office
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System and method for controlling a synchronous machine are provided. The method allows for calculating a stator voltage index. The method further allows for relating the magnitude of the stator voltage index against a threshold voltage value. An offset signal is generated based on the results of the relating step. A respective state of operation of the machine is determined. The offset signal is processed based on the respective state of the machine.
Walters; James E. (Carmel, IN), Gunawan; Fani S. (Westfield, IN), Xue; Yanhong (Westfield, IN)
Delphi Technologies, Inc. (Troy, MI)
09/ 757,187
January 9, 2001
This invention was made with U.S. Government support through Definitized Subcontract C-HEV-5A under MRI/CHRYSLER LETTER SUBCONTRACT NO. ZAN-6-16334-01, which subcontract was in turn issued under MRI/CHRYSLER PRIME CONTRACT NO. DE-AC36-83CH10093" awarded by the Department of Energy, and, in accordance with the terms set forth in said contracts, the U.S. Government may have certain rights in the invention.