Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1981-01-26
1982-11-23
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
123486, 123492, F02D 3702, F02D 500, F02B 300, F02M 2506
Patent
active
043599915
ABSTRACT:
A fuel control system for an internal combustion engine with correction for optimum values based on a variety of factors. Characteristic engine data is stored in preferably digital memories with capabilities for interpolation. Upon addressing the engine data fields with input signals related to current operational variables, for example the accelerator pedal position, the control system derives therefrom a nominal air flow rate which is used as the reference value in a control loop that sets the amount of recycled exhaust gas and the fresh air flow. As the actual air flow rate approaches the reference value, the fuel flow is adjusted to insure correct mixtures at all times. In another embodiment, the fuel is supplied on demand but cannot exceed a maximum value except under special override conditions. Several other embodiments and variants are presented.
REFERENCES:
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patent: 3983848 (1976-10-01), Hundtmann et al.
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patent: 4116169 (1978-09-01), Krupp et al.
patent: 4142493 (1979-03-01), Shira et al.
patent: 4166437 (1979-09-01), Bianchi et al.
Becker Waldemar
Boehringer Andreas
Eisele Hermann
Flaig Ulrich
Kubach Hans
Greigg Edwin E.
Nelli Raymond A.
Robert & Bosch GmbH
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