Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Reexamination Certificate
2011-01-04
2011-01-04
Benson, Walter (Department: 2837)
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
C318S661000, C318S400390
Reexamination Certificate
active
07863850
ABSTRACT:
An apparatus, system, and method are provided for simulating outputs of a resolver. One apparatus includes an adjustable sine waveform generator for simulating first and second sine wave signals, and an adjustable cosine waveform generator for simulating first and cosine wave signals. The apparatus also includes an adjustable waveform generator and an adjustable gain circuit coupled to the sine waveform generator and cosine waveform generator. The system includes a device simulating a resolver coupled to a motor controller. The device includes an adjustable sine waveform generator and an adjustable cosine waveform generator coupled to an adjustable waveform generator and an adjustable gain circuit. One method includes transmitting a signal simulating at least one resolver fault condition to a motor controller to determine if the motor controller detects the fault condition(s). If the motor controller fails to detect the fault condition(s) and/or transmit an error message, the motor controller is malfunctioning.
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Fu David T
Schulz Steven E.
Wang Wei D.
Benson Walter
GM Global Technology Operations LLC
Ingrassia Fisher & Lorenz P.C.
Paul Antony M
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