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실린더별 공연비 제어를 위한 배기가스 모델링

김혜순, 박진일, 고상근

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Abstract

There is ±3% air-fuel ratio difference among cylinders for a normal gasoline engine. To reduce this difference it is required to control the individual cylinder air-fuel ratio. Lambda sensor output has informations for the individual cylinder air-fuel ratio. But it is highly affected by engine speed, load and exhaust manifold configuration so the purpose of this study is modeling of exhaust gas for individual cylinder A/F control. Simulations show good agreements with experiments for various engine speed and load.

About this research paper

What this paper is about

There is ±3% air-fuel ratio difference among cylinders for a normal gasoline engine. To reduce this difference it is required to control the individual cylinder air-fuel ratio. Lambda sensor output has informations for the individual cylinder air-fuel ratio. But it is highly affected by engine speed, load and exhaust manifold configuration so the purpose of this study is modeling of exhaust gas for individual cylinder A/F control. Simulations show good agreements with experiments for various engine speed and load.

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Available abstract

There is ±3% air-fuel ratio difference among cylinders for a normal gasoline engine. To reduce this difference it is required to control the individual cylinder air-fuel ratio. Lambda sensor output has informations for the individual cylinder air-fuel ratio. But it is highly affected by engine speed, load and exhaust manifold configuration so the purpose of this study is modeling of exhaust gas for individual cylinder A/F control. Simulations show good agreements with experiments for various engine speed and load.

Key concepts: Inlet manifold, Exhaust manifold, Cylinder, Petrol engine, Air–fuel ratio, Automotive engineering, Compression ratio, Exhaust gas recirculation

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실린더별 공연비 제어를 위한 배기가스 모델링 — Research Paper | ScholarLens