CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

WIPO Patent Application WO/2013/191267

A1

Provided is a control device with which individual variation in the amount of fuel injected by the fuel injection devices for each cylinder is detected at the fuel injection devices, and the injection pulse width and the current waveform applied to a solenoid are adjusted so as to reduce the individual variation in the fuel injection devices, thereby enabling control of the injection amount at intermediate lift wherein the valve body does not contact the fixed core. The voltage between the terminals of a solenoid (105) is detected for the fuel injection device of each cylinder, and with the change in the induced electromotive force due to the change in the acceleration of the armature (102) when the valve body (114) moves from the open state to the closed state and the armature (102) separates from the valve body (114) after the valve body (114) contacts the valve seat (118), as the time at which the second-order differential value of the voltage between the terminals of the solenoid (105) is the maximum, the timing for completing the closing of the valve body (114) is determined.

KUSAKABE RYO (JP)
ABE MOTOYUKI (JP)
HATANAKA AYUMU (JP)
AONO TOSHIHIRO (JP)
HIROTSU TEPPEI (JP)
SAKAMOTO HIDEYUKI (JP)
FUKUDA TAKAO (JP)
EHARA HIDEHARU (JP)
TOYOHARA MASAHIRO (JP)
NISHIOKA AKIRA (JP)

PCT/JP2013/067026

December 27, 2013

June 21, 2013

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HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

F02M51/06; F02D41/20; F02M51/00; F16K31/06

WO2012029507A1

2012-03-08

US20110170224A1	2011-07-14
JP2009036196A	2009-02-19
JP2002349394A	2002-12-04

INOUE Manabu et al. (JP)
Manabu Inoue (JP)

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