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Optimal Air-Fuel Ratio

Cesare Pianese (University of Salerno, Italy), 
Société: University of Salerno, Italy
Publié: dSPACE Magazine 1/2008, Jul 2008

Optimal air-fuel ratio is a key challenge and keeps coming up as an open issue for the engine control community. Since the 1980s, the transition from carburetors to electronically controlled injection systems has been motivating researchers to concentrate on this topic. Proper control of the air-fuel ratio is greatly benefi cial to the performance of three-way catalysts in both steady and transient operations. This control task therefore plays a fundamental role in limiting exhaust emissions in SI, GDI and lean-burn engines.

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