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Control algorithms for optimisation of Control algorithms for optimisation of engine combustion process with engine combustion process with

continuously changing fuel compositioncontinuously changing fuel composition

By KinYip ChanBy KinYip Chan

Supervised by Prof. Andrzej Ordys, Supervised by Prof. Andrzej Ordys,

Dr. Olga Duran, Dr. Konstantin VolkovDr. Olga Duran, Dr. Konstantin Volkov

Kingston UniversityKingston University

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IntroductionIntroduction

Optimize four stroke engine combustion using Optimize four stroke engine combustion using electronic controlelectronic control

Current engines run limited profile (camshaft)Current engines run limited profile (camshaft)

control valve timing and ignition timing control valve timing and ignition timing according to piston positionaccording to piston position

Electronic control gives flexibility of controlling Electronic control gives flexibility of controlling engine parameters which needed to run an engineengine parameters which needed to run an engine

Project Aims: Fuel economy, less emissions, more Project Aims: Fuel economy, less emissions, more choice on fuel composition.choice on fuel composition.

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Suggestion for contentSuggestion for content

Motivation for researchMotivation for research Fuel price increase – Give more choice for fuelling using different Fuel price increase – Give more choice for fuelling using different

fuel composition (Petrol, Diesel, Biofuel, or mixed etc.)fuel composition (Petrol, Diesel, Biofuel, or mixed etc.) Pollution issue – Less emission to provide better environmentPollution issue – Less emission to provide better environment Electronic control - is enabling feature to achieve more flexibilityElectronic control - is enabling feature to achieve more flexibility

BackgroundBackground Pressure and temperature control inside cylinderPressure and temperature control inside cylinder Takes data from sensors and control loop to update parameters for Takes data from sensors and control loop to update parameters for

new cyclesnew cycles

Current statusCurrent status Finishing a simulation platform using simulinkFinishing a simulation platform using simulink Finding control algorithmFinding control algorithm

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Engine modelsEngine models

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Lotus Engine Simulation Ricardo Wave

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Simulink modelSimulink model

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Simulink model (four stroke)

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ResultsResults Two zones temperature (Burned and unburned zone)Two zones temperature (Burned and unburned zone) Ricardo Wave in blue, Matlab/Simulink in red and Ferguson in crossRicardo Wave in blue, Matlab/Simulink in red and Ferguson in cross

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Summary or future workSummary or future work

Engine simulation using computer programsEngine simulation using computer programs Using this as platform to build control algorithmUsing this as platform to build control algorithm

Future WorksFuture Works Build a four cylinder engineBuild a four cylinder engine Compare simulation results with real engine test bedCompare simulation results with real engine test bed Control strategies to optimise engine combustion Control strategies to optimise engine combustion

performanceperformance