Hybrid vehicle and control method thereof
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United States of America Patent
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Dec 31, 2013
Grant Date -
Dec 3, 2009
app pub date -
May 29, 2009
filing date -
May 29, 2008
priority date (Note) -
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Abstract
After completion of warm-up of an engine, upon satisfaction of an exhaust gas recirculation condition by setting the drive mode of a hybrid vehicle to a normal mode according to the driver's accelerator operation, when a power difference ΔPe representing a decrease rate of a power demand Pe* required for the engine is less than a preset reference value α, the engine and motors MG1 and MG2 are controlled to ensure output of a power equivalent to the power demand Pe* from the engine with prohibition for exhaust gas recirculation via an EGR valve and to ensure output of a torque equivalent to a torque demand Tr* to a ring gear shaft or an axle (steps S300 to S330 and step S390).
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