Electricity: motive power systems – Switched reluctance motor commutation control
Reexamination Certificate
2008-04-15
2008-04-15
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Switched reluctance motor commutation control
C318S132000, C318S434000, C318S806000, C318S798000, C318S727000
Reexamination Certificate
active
11368665
ABSTRACT:
An apparatus and method determine a start-up of a sensorless motor. The apparatus includes an elapsed time determination unit, a motor velocity determination unit and an abnormal start-up determination unit. The elapsed time determination unit determines whether a predetermined time has elapsed after a start-up of the motor is initiated. The motor velocity determination unit determines whether a velocity of the motor exceeds a predetermined velocity value when the predetermined time has elapsed. The abnormal start-up determination unit determines that the motor was abnormally started up when the velocity of the motor does not exceed the predetermined value, and an amount of current flowing in the motor does not exceed a predetermined current value.
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Cheong Dal Ho
Oh Jae Yoon
Won June Hee
Greenblum & Bernstein P.L.C.
Leykin Rita
LG Electronics Inc.
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