Adaptive charge mixture control system for internal combustion e

Details Adaptive charge mixture control system for internal combustion e Adaptive charge mixture control system for internal combustion e

1988-04-20

1989-05-09

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123326, F02B 32

Patent

active

048278874

ABSTRACT:
An adaptive charge mixture control for an internal combustion engine includes four input signals supplied to an OR gate to generate a net "go rich" signal supplied to a servo motor controlling an air/fuel charge mixture control valve for an internal combustion engine. The servo is also supplied with a "go lean" fixed signal tending to lean out the air/fuel mixture. The four "go rich" signals include a first signal derived from a comparison of engine speed with a predetermined minimum (i.e., idle) level; a second signal derived from comparing throttle positions with a preset minimum throttle position; a third signal derived from comparing engine deceleration rate with a preset engine deceleration rate; and a fourth signal derived from a measurement of engine instantaneous power output.

REFERENCES:
patent: 4452212 (1984-06-01), Takase
patent: 4480621 (1984-11-01), Hoppel
patent: 4510902 (1985-04-01), Tsachida et al.
patent: 4535744 (1985-08-01), Matsumura
patent: 4674458 (1987-06-01), Mori
patent: 4747387 (1988-05-01), Takao et al.

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