Electricity: motive power systems – Automatic and/or with time-delay means – Responsive to thermal conditions
Reexamination Certificate
2006-12-22
2009-08-18
Fletcher, Marlon T (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Responsive to thermal conditions
C318S473000, C361S025000, C361S093800
Reexamination Certificate
active
07576506
ABSTRACT:
A method and system for estimating a parameter of an electric machine, including a controller and a switching device, the controller responsive to at least one of: a current sensor, and a temperature sensor. Where the controller executes a parameter estimation process, which is responsive to at least one of: a current value and a temperature estimate and the resultant of the parameter estimation process representing an estimated parameter of the electric machine. The parameter estimation includes a method for estimating a temperature of the electric machine comprising: the temperature sensor operatively connected to and transmitting a temperature signal corresponding to a measured temperature to a controller, which executes the temperature estimation process responsive to a temperature signal from the temperature sensor.
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Kleinau Julie A.
Shafer Daniel W.
Zuraski Jeffrey A.
Delphi Technologies Inc.
Fletcher Marlon T
Twomey Thomas N.
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