Direct fuel injection/spark ignition engine control device

An engine control device (20) is configured to perform optimum combustion control according to environmental conditions when warming up of a catalyst for emission purification is required. The engine control device (20) performs stratified combustion by the compression stroke injection at the time o...

Full description

Saved in:
Bibliographic Details
Main Author AKAGI MITSUHIRO,KIKUCHI TSUTOMU,IRIYA YUICHI,ISHII HITOSHI,FUKUZUMI MASAHIRO,UCHIYAMA KATSUAKI,YUYAMASAHIKO,MAITANI TAKAO,TOMITA MASAYUKI
Format Patent
LanguageEnglish
Published 11.07.2007
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:An engine control device (20) is configured to perform optimum combustion control according to environmental conditions when warming up of a catalyst for emission purification is required. The engine control device (20) performs stratified combustion by the compression stroke injection at the time of startup, when warming up of the catalyst is required. However, under conditions of low air density, stratified combustion by compression stroke injection is prevented, and either homogenous combustion by intake stroke injection is performed, or double injection combustion by intake stroke injection and compression stroke injection is performed. Thus, the engine control device (20) maintains starting properties and prevents adverse effects on engine operability.
Bibliography:Application Number: CN200410088011