In-cylinder injection type spark-ignition internal...

Details In-cylinder injection type spark-ignition internal... In-cylinder injection type spark-ignition internal...

2007-04-03

2007-04-03

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Having a particular relationship between injection and...

C123S295000

Reexamination Certificate

active

11400308

ABSTRACT:
When, in a coexistence region where stratified combustion by a spray-guide method (SG combustion) and stratified combustion by a wall-guide method (WG combustion) are both practicable, a change from the SG combustion to the WG combustion is carried out, an ECU obtains point b giving a set of a fuel injection timing and an ignition timing capable of achieving the same target torque as a target torque in the SG combustion before the change, by the WG combustion, and changes the fuel injection timing and ignition timing stepwise from point a within an SG region to point b within a WG region, jumping across a misfire region, and then continuously to point c giving an optimal set of a fuel injection timing and an ignition timing corresponding to an MBT.

REFERENCES:
patent: 6062190 (2000-05-01), Nakajima
patent: 6089206 (2000-07-01), Suzuki et al.
patent: 6176227 (2001-01-01), Ohuchi et al.
patent: 11-210472 (1999-08-01), None

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