Electricity: motive power systems – Switched reluctance motor commutation control
Reexamination Certificate
2007-01-09
2007-01-09
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Switched reluctance motor commutation control
C318S430000, C318S431000, C318S721000
Reexamination Certificate
active
10674472
ABSTRACT:
In a motor-driven shift position switching device, when the difference between a target position and the rotation position of a rotor has become smaller than a prescribed value in a motor feedback control, a transition is made to a deceleration control. A phase lead correction amount for correcting the phase lead of the current supply phase with respect to the rotor rotation phase is set in accordance with the rotor rotation speed. Thus, proper braking force suitable for the rotor rotation speed is exerted on the rotor and the rotor can be decelerated smoothly as it approaches the target position. Further, in the period when the current supply to the motor is kept off, the shift position switching determination ranges are set wider than in the period when the current supply to the motor is on.
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Kamio Shigeru
Nakai Yasuhiro
Colon Santana Eduardo
Donovan Lincoln
Nixon & Vanderhye P.C.
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