Control system for internal combustion engine

Details Control system for internal combustion engine Control system for internal combustion engine

1989-12-26

1991-06-11

Okonsky, David A.

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

123 9015, 123348, F01L 904, F01L 134

Patent

active

050223577

ABSTRACT:
A control system for controlling an internal combustion engine having intake and exhaust valves and a fuel supply unit for supplying fuel into an intake port includes electromagnetic actuators for selectively opening and closing the intake and exhaust valves under electromagnetic forces. An opening or valve lift of the intake valve for obtaining a necessary amount of intake air and an amount of fuel to be injected are calculated on the basis of engine load conditions. The electromagnetic actuators and the fuel supply unit are controlled on the basis of the calculated valve opening and amount of fuel to be injected for thereby controlling the air-fuel mixture ratio of an air-fuel mixture introduced into an engine cylinder.

REFERENCES:
patent: 3682152 (1972-08-01), Muller-Berner
patent: 4359022 (1982-11-01), Nakamura et al.
patent: 4544986 (1985-10-01), Buchl
patent: 4593658 (1986-06-01), Moloney
patent: 4614170 (1986-09-01), Pischinger et al.
patent: 4700684 (1987-10-01), Pischinger et al.
patent: 4875452 (1989-10-01), Hara et al.

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