This paper presents a strategy for closed-loop control of a multi cylinder turbo charged Homogeneous Charge Compression Ignition (HCCI) engine. A dual fuel port injection system allows control of combustion timing and load individually for each cylinder. The two fuels used are isooctane and n-heptane, which provides a wide range of autoignition properties.Cylinder pressure sensors provide feedback and information regarding combustion. The angle of 50% heat release is calculated in real time for each cycle and used for timing feedback.Inlet air preheating is used at low loads to maintain a high combustion efficiency.
Closed-Loop Control of an HCCI Engine
Sae Technical Papers
SAE 2001 World Congress ; 2001
2001-03-05
Conference paper
English
Closed-loop control of an HCCI engine
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