Shift controller and shift controlling method
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United States of America Patent
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Aug 20, 2013
Issued Date -
N/A
app pub date -
Jun 24, 2011
filing date -
Jun 28, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A shift controller controls a transmission for a hybrid vehicle in which: an engine and a motor are connected together via a clutch; and the transmission is placed between the motor and driving wheels. The shift controller has: a first shift controlling unit which performs shift control on a basis of at least one of transmission efficiency of the transmission and power generation efficiency of the motor in a case where regeneration is performed with the clutch disengaged during deceleration of the hybrid vehicle; and a second shift controlling unit which performs shift control to make a transmission gear ratio of the transmission smaller than in the shift control performed by the first shift controlling unit in a case where the regeneration is performed with the clutch engaged during the deceleration of the hybrid vehicle.
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