Transient control between two spark-ignited combustion states in

Details Transient control between two spark-ignited combustion states in Transient control between two spark-ignited combustion states in

1998-05-21

1999-11-30

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

123305, 701105, F02B 1700

Patent

active

059923725

ABSTRACT:
What is disclosed is a vehicle engine control system responsive to a change between a first request for homogeneous charge combustion and a second request for stratified charge combustion. A spark-ignition cylinder-injection internal combustion engine has cylinders, each performing an intake phase, a compression phase, a power phase, and an exhaust phase. The cylinders each, when rendered operable in a first mode, experience first fuel injection at a first fuel injection timing during intake phase thereof and first spark ignition at a first ignition timing to initiate homogeneous charge combustion. The cylinders each, when rendered operable in a second mode, experiences second fuel injection at a second fuel injection timing during compression phase and second spark ignition at a second ignition timing to initiate stratified charge combustion. A fuel injection manager is operable to set one of the first fuel injection and second fuel injection for the cylinders in a predetermined sequential order in response to one of the first and second request. A spark ignition manager is operable to set one of the first spark ignition and second spark ignition for the cylinders in the predetermined sequential order in response to one of the first fuel injection and the second fuel injection that has been set to each of the cylinders.

REFERENCES:
patent: 5078107 (1992-01-01), Morikawa
patent: 5911206 (1999-06-01), Bylsma

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