Abstract
An alternative algorithm is proposed far a variable-structure control to design a closed-loop fuel-injection system. Sliding control using fuzzy logic is combined with current oxygen sensors to maintain the stoichiometric air/fuel ratio. Predictive control is also introduced to compensate for the lime delay in the combustion process. This synthesis provides a practical and flexible design for an engine controller because its hybrid structure meets given robustness and performance requirements. The potential of the proposed algorithm is shown through real-time simulations utilizing both a typical engine-only model on an AD-100 computer and an implemented controller on an Intel 80C186 with an 80C187 processor.
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