Control device for vehicle drive device
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United States of America Patent
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Aug 9, 2016
Grant Date -
Aug 27, 2015
app pub date -
Sep 18, 2012
filing date -
Sep 18, 2012
priority date (Note) -
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Abstract
A control device of a vehicle drive device includes a direct injection engine, an electric motor, and a clutch selectively coupling the direct injection engine to a power transmission path from the electric motor to drive wheels, the control device slips the clutch and starts the direct injection engine by an ignition start with fuel injected into a cylinder of the direct injection engine and ignited from a start of rotation of the direct injection engine if the direct injection engine is started during a running mode using only the electric motor as a drive source, the control device weakens an engagement force of the clutch if a shaft torque of the direct injection engine goes through a first negative torque extreme value after initiation of a start of the direct injection engine and becomes zero from a negative torque as compared to before becoming the zero.
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