2003_vehicle_dynamics_investigation_sim

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1、VehicleDynamicsInvestigationUsingaHydraulicHardware-in-the-LoopTest-RigKeiwanKashi*,DirkS¨offker*,DirkNissing**,DirkKesselgruber***InstituteforMechatronicsandSystemDynamics,UniversityDuisburg-EssenLotharstrasse1,D-47057Duisburg,Germany(kashi@uni-duisburg.de)(s

2、oeffker@uni-duisburg.de)**TRWAutomotive,TechnicalCenterDuesseldorfHansaallee190,D-40547D¨usseldorf,Germany(dirk.nissing@trw.com)(dirk.kesselgruber@trw.com)IntroductionInthiscontributionanewdesignforahydraulicHardware-in-the-Loop(HIL)test-rigispresented.Thepurp

3、oseofthetest-rigistoinvestigatetheperformanceofactivesus-pensionsystems,suchasActiveRollControl(ARC)orActiveDynamicControl(ADC)fromTRWAutomotiveInc.Thedesignisfocusedonachievingaflexibletest-rigcapa-bleofvariousexperimentalsetupswithmaximumpossibilitiesfordata

4、acquisition.Thetest-rigshouldalsobecompactandtransportable.Forthesafetyofthepassengersandtheavoidanceofdamagestothevehicle,theopera-tionandperformanceofthissystemhastobemonitoredtogetherwithafaultdetectionstrategy,bothforthecomponentsaswellasforthesystem.Late

5、lybyusingsignaland/ormodel-basedfaultdetectionthenumberofsensorsforthispurposehavebeenminimizedwhileatthesametimeanimprovedsystemmonitoringandfaultisolationhasbeenre-alized.Duetothehighsafetyrequirementsthisprocessmustberealizedinreal-time.Extensivesimulation

6、saswellasexperimentaltestsshouldberealizedinordertovalidatethesystemmodelandalsotodefinethenormalandabnormaloperationsofthesystem.Hardware-in-the-Loopmethodsallowthesystemtobetestedinasimulatedbutexper-imentalenvironment.Systemsorcomponents,whichareusuallyinin

7、teractionwithanenvironmentoranothersystemtobeexamined,canbereplacedbymodelscalculatedonareal-timeprocessor.Thiscontributestothegoalofachievingsuitablecontrolalgorithmand/orimprovedreliabilityunderrealoperationalconditions.Thebenefitsareadecreaseinthedevelopmen

8、ttimeandcostsaswellashigherproductquality.TheActiveSuspensionControlSystem(ASCS)[1]developedbyTRWAutomotiveInc.isbasedonanelectro-hydraulicsystemwhichisused-toreducetherollangleofthevehic