Electronic control device for internal combustion engine with EG

Details Electronic control device for internal combustion engine with EG Electronic control device for internal combustion engine with EG

1988-08-19

1989-11-21

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123480, 123486, F02M 2506

Patent

active

048815098

ABSTRACT:
An electronic control device in an internal combustion engine with an EGR apparatus for calculating a predetermined control variable such as a fuel injection time period or an ignition timing, and correcting same to exclude a component stemming from EGR gas in the intake air. The device comprises a first unit for calculating a fundamental value of the fuel injection time period (TP), a second unit for converting the detected intake pressure under the detected atmospheric pressure into a converted intake pressure under the standard atmospheric pressure in response to the detected atmospheric pressure and a third unit for calculating a correcting value (TPE) from data including information regarding the EGR gas under the standard atmospheric pressure and stored as a function of the converted intake pressure (PMT). In this device, the fundamental value can be corrected by subtracting the correcting value from the fundamental value in the case of the fuel injection time period.

REFERENCES:
patent: 4450824 (1984-05-01), Ando et al.
patent: 4478199 (1984-10-01), Narasaka et al.
patent: 4562821 (1986-01-01), Ikeda
patent: 4598684 (1986-07-01), Kato et al.
patent: 4602606 (1986-07-01), Kawagoe et al.
patent: 4630589 (1986-12-01), Hashiguchi et al.
patent: 4757683 (1988-07-01), Kawanabe et al.

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