A control device of an internal-combustion engine

Japanese Patent JP5982484

B2

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.

WO/2005/017344	METHOD FOR DETERMINING THE QUALITY OF AN INJECTION NOZZLE
WO/2011/113659	METHOD AND DEVICE FOR EVALUATING AN INJECTION MEMBER
WO/2010/117478	FLOW SENSING SHUTOFF VALVE

Ryo Kusakabe
Motoyuki Abe
Ayumu Hatanaka
Toshihiro Aono
Hirotsu Teppei
Hideyuki Sakamoto
Takao Fukuda
Shuji Ehara
Masahiro Toyohara
Akira Nishioka

JP2014521518A

August 31, 2016

June 21, 2013

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Hitachi Automotive Systems, Ltd.

F02M65/00; F02D45/00

JP2012052419A
JP2009036196A
JP2009121482A
JP2001280189A

US20110170224
WO2010121868A1

Manabu Inoue
Yuji Toda
Shigemi Iwasaki

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