Air Flow Metering and Combustion Control for Spark Ignition Engines

Paper #:
  • 930215

Published:
  • 1993-03-01
Citation:
Ohyama, Y., Ohsuga, M., and Fujieda, M., "Air Flow Metering and Combustion Control for Spark Ignition Engines," SAE Technical Paper 930215, 1993, https://doi.org/10.4271/930215.
Pages:
11
Abstract:
The relationships between air flow metering and combustion control for spark ignition engines, such as engines with three way catalysts, lean NOx catalysts, two stroke engines and direct fuel injection engines were investigated. The effects of control parameters on combustion were analysed and the relationships between control parameters and air flow metering and roles of the meters in combustion control were clarified.The control strategies adaptable to many types of engines which have a wide control range of the air/fuel mass ratio are classified as (1) air quantity control,(2) fuel quantity control, and (3) exhaust gas recycle quantity control. The control parameters for the three strategies are fuel quantity, air quantity, exhaust gas recycle quantity, exhaust gas temperature, knocking, excess air factor, and mixture quality with additional parameters of swirl ratio, and spark timing for conventional spark ignition engines, two stroke engines and direct injection engines. The control of the parameters is based on output signals of air flow meters.
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