Apparatus and method for controlling combustion in internal comb

Details Apparatus and method for controlling combustion in internal comb Apparatus and method for controlling combustion in internal comb

1997-12-16

1999-03-16

Solis, Erick R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

123435, 123436, F02B 1700

Patent

active

058816933

ABSTRACT:
An internal combustion engine and method of engine control that selectively shifts the combustion mode carried out in its cylinder between stratified charge combustion and homogeneous charge combustion. A fuel supply device supplies the cylinder with fuel. A condition detecting device detects the operating conditions of the engine. A mode determining device determines the preferred combustion mode in accordance with the detected operating conditions. If the mode determining device determines that homogeneous charge combustion is to be performed, a first controller sets a first fuel supply amount and controls the fuel supplying device accordingly so that the engine torque fluctuation approaches a predetermined target value. If the determining device determines that stratified charge combustion is to be performed, a second controller sets a second fuel supply amount and controls the fuel supplying device accordingly so that the engine torque fluctuation approaches a predetermined target value. This permits smooth fuel control and prevents torque shocks.

REFERENCES:
patent: 5170759 (1992-12-01), Ito
patent: 5331933 (1994-07-01), Matsushita
patent: 5722362 (1998-03-01), Takano et al.
patent: 5722363 (1998-03-01), Iida et al.
patent: 5755198 (1998-05-01), Grob et al.

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