Electricity: motive power systems – Automatic and/or with time-delay means – Responsive to thermal conditions
Reexamination Certificate
2008-01-22
2008-01-22
Ip, Paul (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Responsive to thermal conditions
C318S470000, C388S800000, C388S831000, C361S025000, C361S033000, C713S320000, C714S051000, C714S055000
Reexamination Certificate
active
07321213
ABSTRACT:
A motor controller is provided with: an estimated temperature calculating means that calculates an estimated temperature of a motor; and a control unit that can perform a driving control of the motor only when the estimated temperature is not larger than a predetermined value. A mode switching means switches the control unit and the estimated temperature calculating means between in a normal operation mode in which they can drive the motor and in a sleep mode in which electric power consumption thereof is smaller than in the normal operation mode in accordance with a predetermined condition while the motor is stationary. An activating means activates the estimated temperature calculating means in the sleep mode for a predetermined active time every time a predetermined sleep time is elapsed.
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Kobayashi Shigeru
Tanaka Seiichi
Watanabe Seiichi
Asmo Co. Ltd.
Ip Paul
Posz Law Group , PLC
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