Article | REF: BM2550 V1

Fuel injection for automotive engines

Author: Luis LE MOYNE

Publication date: January 10, 2009

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2. Fuel metering

The quantity of fuel to be introduced by the injection system is determined by the engine's set point richness and the air mass admitted.

Mixture richness is defined as :

ϕ=mcmaψs

with :

m c and m a
 : 
fuel and air masses respectively,
ψ s...
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