Start-up control of in-cylinder fuel injection spark...

Details Start-up control of in-cylinder fuel injection spark... Start-up control of in-cylinder fuel injection spark...

2005-12-27

2005-12-27

Solis, Erick (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

C123S305000, C123S685000, C123S687000, C123S491000, C123S179160

Reexamination Certificate

active

06978759

ABSTRACT:
An in-cylinder fuel injection internal combustion engine (1) is started up by means of compression stroke fuel injection from the beginning of cranking of the engine (1) to the end of a stratified combustion start-up period TST. If the engine (1) reaches complete combustion during the period, a warm-up operation is begun immediately. If the engine (1) does not reach complete combustion during the period, start-up of the engine (1) is continued using intake stroke fuel injection. By means of this control, stable start-up is assured while suppressing the discharge of unburned fuel during start-up of the engine (1).

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