Interrelated power delivery controls – including engine control – Electric engine – With transmission control
Reexamination Certificate
2008-02-07
2010-12-21
Ho, Ha D. (Department: 3655)
Interrelated power delivery controls, including engine control
Electric engine
With transmission control
C477S003000, C477S020000
Reexamination Certificate
active
07854680
ABSTRACT:
In a power train in which a differential mechanism is coupled with a transmission mechanism, a transmission member is free with no engagement in a second shift portion when a P position or an N position is selected, and a ring gear thereby becomes free in a power split device. During an idle operation with such a shift position, a behavior of an engine rotation speed is retained in a stable manner in the power split device which functions as the differential mechanism through a power supply control (lock control) such that a rotor of a second MG coupled with the ring gear is locked by an electromagnetic force, and then, a learning control of an idle speed control is appropriately implemented.
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Higa Mitsuaki
Sugai Shinichi
Ho Ha D.
Oliff & Berridg,e PLC
Toyota Jidosha & Kabushiki Kaisha
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