Electricity: motive power systems – Synchronous motor systems – Brushless motor closed-loop control
Reexamination Certificate
2009-06-25
2011-11-22
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Brushless motor closed-loop control
C318S400010, C318S400020, C318S400150, C318S400260, C318S400270, C318S432000, C318S434000, C318S599000, C318S811000
Reexamination Certificate
active
08063596
ABSTRACT:
In an apparatus, a first drive unit drives, in a first range of a voltage utilization factor, a switching member to thereby control an output voltage of the power converter to be matched with a command voltage. A second drive unit drives, in a second range of the voltage utilization factor, the switching member to thereby generate a value of a controlled variable of a rotary machine. The second range of the voltage utilization factor is higher than the first range thereof. An estimating unit estimates, during the switching member being driven by the second drive unit, a value of a parameter associated with the output voltage of the power converter. The estimated value is required for the first drive unit to generate the value of the controlled variable generated by the second drive unit.
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Japanese Office Action dated Mar. 30, 2010, issued in corresponding Japanese Application No. 2008-166385, with English translation.
Agared Gabriel
Denso Corporation
Nixon & Vanderhye PC
Ro Bentsu
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