Control apparatus for an engine of direct injection

Details Control apparatus for an engine of direct injection Control apparatus for an engine of direct injection

1996-11-06

1998-02-17

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

123435, F02D 4104, F02D 4304

Patent

active

057182035

ABSTRACT:
A control apparatus for a multi-cylinder engine of direct injection, is composed of a pressure change estimation part for estimating in advance the pressure in each cylinder, from the fuel injection start to the fuel injection end, a part for calculating the difference between the estimated pressure in the cylinder and the pressure of fuel, and a part for calculating a supposed decreased amount of injected fuel, caused by the decrease of the difference between the pressure in the cylinder and the pressure of fuel, in a compression stroke. A part for determining an additional fuel injection time interval to a base fuel injection time interval also determined by the control apparatus, compensates the supposed decreased amount of injected fuel.

REFERENCES:
patent: 5156126 (1992-10-01), Ohkubo et al.
patent: 5222481 (1993-06-01), Morikawa

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