Transient air-fuel ratio H/sub /spl infin// preview control of a drive-by-wire internal combustion engine

An approach for H/sub /spl infin// Preview control of the transient air-fuel ratio control of a drive-by-wire internal combustion engine system is proposed. The fuel delivery system has significant transport and measurement delays. A preview fuel control algorithm, which uses the current measurement or estimate of air charge as well as the corresponding predicted future air charge, provides compensation for these delays. A H/sub /spl infin// feedback control term is used to provide robustness to disturbances and modeling uncertainties.

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