Internal-combustion engines – Charge forming device – Having fluidic logic control means
Patent
1981-09-09
1984-07-24
Lall, Parshotam S.
Internal-combustion engines
Charge forming device
Having fluidic logic control means
123489, F02M 5100
Patent
active
044612583
ABSTRACT:
A regulating device is proposed for a fuel metering system of an internal combustion engine having .lambda. regulation. The regulating device includes a P-I regulator, and the individual control variables of the regulator are stored in memory and are capable of being recalled in accordance with operating characteristics. By means of asymmetrical P and I components that is, different values at the transition from a lean to a rich mixture or vice versa, the average value for .lambda. can be shifted in a clearly-defined manner, so that the individual exhaust gas components are substantially adapted to the desired values at all operational points. The individual P and I components or regulator control variables are stored in memory in performance graphs, which preferably permit finely-distinguished regulator control during partial-load operation.
REFERENCES:
patent: 4174680 (1979-11-01), Anzai
patent: 4224910 (1980-09-01), O'Brien
patent: 4306523 (1981-12-01), Takeda
patent: 4348727 (1982-09-01), Kobayashi et al.
patent: 4348728 (1982-09-01), Sagisaka et al.
patent: 4355616 (1982-10-01), Tamura et al.
Becker Wolfram
Clement Albrecht
Daumer Rolf
Greigg Edwin E.
Lall Parshotam S.
Robert & Bosch GmbH
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