VARIABLE VALVE DEVICE FOR INTERNAL COMBUSTION ENGINE

WIPO Patent Application WO/2012/157074

A1

A variable valve device (20) of an internal combustion engine (1) includes a variable valve timing mechanism (40) and a valve timing control mechanism (50). In addition, when the operating state of the variable valve timing mechanism (40) is in the phase-controlled state and the operating state of the variable valve timing mechanism (40) is changed to the phase cancelation state on the basis of the pressing of the gas pedal (2), a torque suppression control is then performed to suppress an increase in the torque of the internal combustion engine (1). With this control the rate of increase of the torque is set less than the rate of increase of the torque corresponding to the operation of pressing the gas pedal (2) by retarding and correcting the ignition timing. Thus, when the operating state of the variable valve timing mechanism (40) is changed from the phase-controlled state to the phase cancelation state, the feeling of discomfort experienced by the driver can be reduced.

JP2009185762	VALVE TIMING ADJUSTER
JPS6095116	VALVE ACTION SWITCHING DEVICE OF INTERNAL-COMBUSTION ENGINE
JPS58160660	TENSION CONTROL MECHANISM FOR TIMING BELT

MIYAZATO YOSHIAKI (JP)
IMAMURA TOSHIO (JP)
YOKOYAMA YUU (JP)
NUMAKURA MASAKI (JP)

PCT/JP2011/061299

November 22, 2012

May 17, 2011

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TOYOTA MOTOR CO LTD (JP)
MIYAZATO YOSHIAKI (JP)
IMAMURA TOSHIO (JP)
YOKOYAMA YUU (JP)
NUMAKURA MASAKI (JP)

F01L1/34; F02D13/02; F02D9/02; F02P5/15

JP2010127252A	2010-06-10
JP2001329871A	2001-11-30
JPH0579371A	1993-03-30

ONDA, Hironori et al. (JP)
Hironori Onda (JP)

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