Control apparatus for an in-cylinder injection type internal com

Details Control apparatus for an in-cylinder injection type internal com Control apparatus for an in-cylinder injection type internal com

1997-12-12

1999-08-17

Solis, Erick R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

12318455, F02B 1700

Patent

active

059378212

ABSTRACT:
A control apparatus for an in-cylinder injection type internal combustion engine includes an electronic control unit and an induction control system for changing the flow of air in the induction system of the engine. The electronic control unit selects one of fuel injection modes including a compression-stroke injection mode and an intake-stroke injection mode in accordance with the engine operating state. When the engine is operated in the compression-stroke injection mode, the electronic control unit controls the induction control system so as to enhance a stratified degree of an intake air flow generated in the combustion chamber of the engine, to thereby stabilize a combustion, especially, in the compression-stroke injection mode, whereby the fuel efficiency and the engine output are improved.

REFERENCES:
patent: 4932369 (1990-06-01), Parr
patent: 5438964 (1995-08-01), Breidenbach
patent: 5709190 (1998-01-01), Suzuki
patent: 5709191 (1998-01-01), Monnier

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