内燃機関の制御装置及び制御方法

Japanese Patent JP6416366

B2

PROBLEM TO BE SOLVED: To provide a control device and a control method of an internal combustion engine capable of setting engine rotation speed for re-opening fuel injection from a fuel cut state low as much as possible, in an internal combustion engine provided with a first suction port and a second suction port which are branched from a suction passage and are respectively opened to a cylinder, a first fuel injection valve provided on the first suction port and a second fuel injection valve provided on the second suction port.SOLUTION: When engine rotation speed is lowered from a deceleration fuel cut state and fuel injection is re-opened, fuel is injected by a first fuel injection valve and the fuel injection by means of a second fuel injection valve is paused. Thereby, on the fuel injection valve, fuel quantity of the minimum injection quantity or more which can maintain a measuring precision of fuel is injected and, at the same time, the minimum fuel injection quantity to each cylinder can be suppressed less and, therefore, fuel injection can be re-opened upon lower rotation as compared to the case of injection with two lines.SELECTED DRAWING: Figure 2

Kosuke Kanda
Yoshitatsu Nakamura
Tomoyuki Murakami

JP2017231695A

October 31, 2018

December 01, 2017

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Hitachi Automotive Systems, Ltd.

F02D41/12; F02D41/34; F02M69/00

JP4128526A
JP2011132918A
JP201053758A
JP2119656A
JP4134145A
JP2115542A
JP63111251A
JP610804A
JP201048179A
JP201267638A

WO2013054391A1

Moriaki Ogawa
Haruyuki Nishiyama
Mitsuji Sekiya

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