汽车防抱死制动系统的控制算法及仿真研究
Anti—lockbrakingsystem(ABS)isamaintechnologytoimprovethevehicleactivesafety.Withtheenhancementoftravelingspeedandincreasingofdensityofvehicle
aflow,andandABSisproducinganddevelopingundertheconditionoftherequirementofhigher
higherperformanceoftravelingsafety.
ourInthisthesis,thedevelopmenthistoryandtheresearchanddevelopmentstatuein
countryaresummarized.Thestructure
processandcontrolandworkingprincipleareintroduced.Andthecontrolmethodsusedatpresentarecomparedandanalyzed.
Thevehiclemathematicmodelsofbrakingbehavior,includingwholevehiclemodel,
aresemi—vehiclemodelandquartervehicle
brakingissetup.Andtheloadonthewheelswhilevehicleanalyzed.Themagicformulatiremodelandthedoublelinearmodelaregiven.ThequartervehiclesimulationmodelissetupunderMatlab/Simulinkenvironment.
Thebasictheoryoffuzzycontrolmethodisintroducedin
controldetail.ThePIDcontrol,fuzzyandself-adaptivefuzzyPIDcontrolmethodRreputforward.Thesimulationiscarried
areoutbyusingthequartervehiclemodelandthecontrolmethods.Thesimulationresults
acomparedand
effecttoanalyzed.Theresultshowsthatthecontrolmethodshavegetwellcontrolanti-lockbrakingsystem
Keywords:anti—lockbrakingsystem,
simulationvehiclemathematicmodel,controlarithmetic,