Electricity: motive power systems – Constant motor current – load and/or torque control
Reexamination Certificate
2005-05-31
2005-05-31
Hsieh, Shih-Yung (Department: 2837)
Electricity: motive power systems
Constant motor current, load and/or torque control
C318S783000, C318S472000, C388S934000, C180S446000, C701S042000
Reexamination Certificate
active
06900607
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, a torque command 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: a temperature sensor operatively connected to and transmitting a temperature signal corresponding to a measured temperature to a controller, which executes a temperature estimation process responsive to a temperature signal from a temperature sensor.
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Chandy Ashok
Collier-Hallman Steven J.
Kleinau Julie A.
Patankar Ravindra P.
Shafer Daniel W.
Delphi Technologies Inc.
Hsieh Shih-Yung
Martin Edgardo San
Smith Michael D.
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