Electricity: motive power systems – Automatic and/or with time-delay means – Speed or rate-of-movement
Reexamination Certificate
2011-08-02
2011-08-02
Dada, Rina I (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Speed or rate-of-movement
C318S400020
Reexamination Certificate
active
07990094
ABSTRACT:
The micro computer17continue an output of a motor control signal to execute a current control to carry to each of two phases a phase current changing like a secant curve or a cosecant curve at making a predetermined rotational angle according to the phase generated the current-carrying failure as an asymptote at the generation of the current-carrying failure. The micro computer17provides a rotational angle compensating section40compensating an input rotational angle θ to correct a phase offset between a phase current command value Ix* as a current command value and an actual phase current value Ix as an actual current value in the current control.
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Dada Rina I
JTEKT Corporation
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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