Controller and control method for a hybrid electric vehicle powertrain
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United States of America Patent
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May 1, 2007
Issued Date -
N/A
app pub date -
Dec 2, 2005
filing date -
Sep 22, 2003
priority date (Note) -
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Abstract
A parallel hybrid electric vehicle powertrain and control method wherein an internal combustion engine and an electric motor system define a split power operating mode, a generator drive mode and a parallel power mode. Provision is made, when the motor is inoperable, for preventing discharge of a battery in the electric motor system when the battery state-of-charge is low and for delivering power from the battery when the battery state-of-charge is greater than a predetermined value.
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