Wayne State University Wayne State University Dissertations 1-1-2016 Torque Accuracy Improvement Via Explicit Torque Feedback Control For Internal Combustion Spark Ignition Engines Anwar Alkeilani Wayne State University, Follow this and additional works at: https://digitalcommons.wayne.edu/oa_dissertations Part of the Electrical and Computer Engineering Commons, and the Mechanical Engineering Commons Recommended Citation Alkeilani, Anwar, "Torque Accuracy Improvement Via Explicit Torque Feedback Control For Internal Combustion Spark Ignition Engines" (2016). Wayne State University Dissertations. 1418. https://digitalcommons.wayne.edu/oa_dissertations/1418 This Open Access Dissertation is brought to you for free and open access by DigitalCommons@WayneState. It has been accepted for inclusion in Wayne State University Dissertations by an authorized administrator of DigitalCommons@WayneState. TORQUE ACCURACY IMPROVEMENT VIA EXPLICIT TORQUE FEEDBACK CONTROL FOR INTERNAL COMBUSTION SPARK IGNITION ENGINES by ANWAR ALKEILANI DISSERTATION Submitted to the Graduate School, of Wayne State University, Detroit, Michigan in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY 2016 MAJOR: ELECTRICAL ENGINEERING Approved By: _____________________________________ Advisor Date _____________________________________ Advisor Date _____________________________________ _____________________________________ _____________________________________ DEDICATION To my beloved parents, who raised me tenderly, Dr. Aref Alkeilani and Karama Albarazi, to all of my dear sisters and brothers who supported me, to my treasured wife and life partner Ruqaia Muradagha who stood by and comforted me, and our children Karama, Aref and Mustafa for their patience, to my precious sisters-in-law and brothers-in-law for their encouragement, and to Songping Yu, my previous manager, for all his assistance and cooperation. ii ACKNOWLEDGEMENTS I am much obleeged perpetually to Professors Le Yi Wang and Hao Ying, who contributed time to my research. Without their support, encouragement and guidance, I would not be able to write this dissertation. Special thanks to Dr. Songping Yu and Dr. Tamer Badawy who taught me various concepts related to engine management systems and computer-aided simulations. Thanks are due to Professor Feng Lin for his constructive comments. On the other side, I am in debt for the remaining part of my life to my family who stood with me and supported me throughout my long educational voyage in every possible and impossible way. iii TABLE OF CONTENTS ACKN O W L EDGEM EN T S .................................................................................................................iii L IST O FFIGUR ES ..........................................................................................................................viii L IST O FU S ED ACR O N YM S ..............................................................................................................xi L IST O FT ABL ES ............................................................................................................................xiii CHAP T ER 1: INT R O DU CT ION .........................................................................................................1 1.1 P roblem S tatement..........................................................................................................1 1.2 O bjectiveandM otivation................................................................................................2 1.3 L iteratureR eview .............................................................................................................5 1.4 O riginalityandContribution............................................................................................8 1.5 DissertationO verview......................................................................................................9 CHAP T ER 2: S YS T EM O VER VIEW .................................................................................................10 2.1 S electedEngine..............................................................................................................10 2.2 M easuringM ethodsofT orqueandP ressureS ensors...................................................12 2.3 T orqueS ensorsSpecifications.......................................................................................17 2.4 In-CylinderP ressureS ensorsSpecifications...................................................................22 2.5 HardwareS etup.............................................................................................................23 CHAP T ER 3: INT EGR AT ED P O W ER T R AIN M O DELS .....................................................................25 3.1 EngineP lantM odel........................................................................................................28 iv 3.1.1 T hrottleBodyM odel...............................................................................................28 3.1.2 VVT Actuatormodels..............................................................................................30 3.1.3 EngineBreathingM odel.........................................................................................31 3.1.4 T orqueGenerationM odel......................................................................................33 3.1.5 CrankshaftS peedDynamics...................................................................................39 3.2 AutomaticT ransmissionP lantM odel............................................................................39 3.2.1 T orqueConverterM odel........................................................................................39 3.2.2 T ransmissionGearBoxM odel................................................................................40 3.3 VehicleDynamicM odel.................................................................................................41 CHAP T ER 4: P L AN T M O DEL CAL IBR AT ION AN D VAL IDAT ION .....................................................42 4.1 GT P owerM odel............................................................................................................42 4.2 EngineM appingS etup...................................................................................................46 4.3 DataFittingM ethod.......................................................................................................50 CHAP T ER 5: EM S T YP ICAL T O R Q U ER EAL IZAT ION S CHEM ES ......................................................54 5.1 O verview ofT ypicalTorqueControlSubsystems...........................................................54 5.2 DriverT orqueDemand..................................................................................................56 5.3 T orqueArbitration.........................................................................................................56 5.4 T orqueR ealization.........................................................................................................57 5.5 EstimationsofEngineL osses.........................................................................................61 v 5.6 EstimationsofEngineT orque........................................................................................62 CHAP T ER 6: AL GO R ITHM S & CAS CADECO N T R O L S T R U CT U R E..................................................68 6.1 BrakeT orqueS ensorS ignalProcessing.........................................................................68 6.2 In-CylinderP ressureS ensorsSignalProcessing.............................................................71 6.3 DesignofFeedbackControlSystems.............................................................................74 6.3.1 ControlSystem DesignO verview............................................................................74 6.3.2 Closedloopindicatedtorquecontrol.....................................................................78 6.3.3 Closedloopbraketorquecontrol...........................................................................79 6.3.4 Combinedclosed-loopindicatedandbraketorquecontrol...................................80 CHAP T ER 7: S IM U L AT ION S AN D R ES U L T S ..................................................................................83 7.1 S teadyS tateDataFittingR esults...................................................................................83 7.2 T ransientDataFittingR esults........................................................................................88 7.3 ControllersSimulationR esults.......................................................................................92 CHAP T ER 8: S YS T EM AN AL YS ISAN D CO N CL U S ION ..................................................................101 8.1 ControlSystem Analysis...............................................................................................101 8.2 ConclusionandS uggestedFutureW ork......................................................................105 AP P EN DIX: L IST O FU S ED S YM BO L S .........................................................................................107 R EFER EN CES ...............................................................................................................................111 ABS T R ACT ...................................................................................................................................121 vi AU T O BIOGR AP HICAL S T AT EM EN