Electricity: motive power systems – Switched reluctance motor commutation control
Reexamination Certificate
2007-06-28
2009-12-08
Ip, Paul (Department: 2837)
Electricity: motive power systems
Switched reluctance motor commutation control
C318S034000, C318S066000, C318S293000, C318S494000, C123S406130
Reexamination Certificate
active
07629756
ABSTRACT:
Methods and apparatus are provided for controlling first and second motors. A controller includes a processor supplying a control signal for driving the motors and a logic circuit coupled to the processor. The processor produces a first trigger coordinated with the rate of the first motor and a second trigger coordinated with the rate of the second motor. The logic circuit produces a third trigger from a combination of the first and second triggers. The processor includes a converter for sampling the currents of the motors in response to the third trigger. The processor further produces a modified pulse width in the first trigger if a period between the first and second triggers is less than a predetermined limit and directs the converter to consecutively sample the currents in response to the modified pulse width.
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Kowalewski Daniel L.
Murrell Terry
GM Global Technology Operations Inc.
Ip Paul
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