VEHICLE DRIVE SYSTEM

Japanese Patent JP2016033007

A

PROBLEM TO BE SOLVED: To provide a vehicle drive system capable of ensuring stable ignition start while using power assist.SOLUTION: At a time of ignition start for executing fuel injection and ignition to a target cylinder stopped in an expansion stroke to start an internal combustion engine, power assist in the rotation of a crankshaft by a MG is implemented to accompany clutch engagement. Start timing of the fuel injection and the ignition executed first to the target cylinder at the time of the ignition start is corrected and a power assist torque used to start the ignition is corrected on the basis of a combination of a relation between a cylinder internal pressure maximum value Pmax and an estimated value Pmax-est and a relation between ignition delay time T and an estimated value T-est. Furthermore, the start timing of the fuel injection and the ignition executed first to the target cylinder at the time of the ignition start is corrected and the power assist torque used to start the ignition is corrected on the basis of a combination of the relation between the cylinder internal pressure maximum value Pmax and the estimated value Pmax-est and a relation between a crank angle acceleration ACC and an estimated value ACC-est.SELECTED DRAWING: Figure 5

SUZUKI YUSUKE

JP2015107228A

March 10, 2016

May 27, 2015

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TOYOTA MOTOR CORP

B60W10/08; B60K6/48; B60K6/547; B60L50/16; B60W10/02; B60W10/06; B60W20/00; F02D29/00; F02D29/02; F02P5/15

JP2005282419A	2005-10-13
JP2005282419A	2005-10-13

WO2012111147A1	2012-08-23
WO2015029650A1	2015-03-05
WO2012111147A1	2012-08-23
WO2015029650A1	2015-03-05

Hideki Takahashi
Mamoru Takada
Hidekazu Onishi

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