现代汽车被动安全介绍

Active&passivesafetysystemsonHyundaivehicles;Development&strategyRoadSafetyconference,BelgradeApril27th–29th2011HyundaiAutoBeograd,Since200231997~19671996CompletionoftheNamyangnewResearch&DevelopmentCenter1994Annualproductionexceeds1Million;1967FoundingoftheHyundaiMotorCompanyHISTORYHISTORY2005~19982005HyundaiMotorCompanyenterstheTop100GlobalBrandslist2003HMCfirstautomakertoannouncedtheglobalenvironmentalmanagement2002OfficialPartnerofthe2002FIFAWorldCupGames;20001stfuelcellelectricvehicle;1998AcquisitionofKiaHISTORYHISTORY2010~HyundaiMotorCompanyisinGlobalTop5HISTORYHISTORYDistributers(andDealers)aroundGlobeHISTORYHISTORYWhatshallwespeakaboutinthisreminder
Activesystemsofsafety
Passivesystemsofsafety
DevelopmentsandstrategyHistoryAbrakeisadevicewhichinhibitsmotion.BrakesTireforcesandbrakeforcesFSFSFFFFTireBrakediscordrumavaDecellerationVSpeedFSApplypressureFFFrictionForceFNFSFUForcesESPABSEBDTCSVSMBrakingforcecoefficient1.21.00.80.60.40.2020406080%1.Radialtiresondryconcrete2.Bias-plywintertiresonwetasphalt3.Radialtiresonsnow4.RadialtiresoniceABScontrolrangesBrakeslipBrakingforcecoefficientABScontrolrangesLateralforcecoefficientBraking/Lateralforcecoefficient020406080%Brakeslip0.20.40.60.81.0α=2α=10α=2α=10Figure#1Figure#2TurningAccelerationDecelerationDirectiontireisfacingSlipangleDirectiontireistravellingFRICTION&slipmiForcesPhase1:EmergencySituation,Panicbraking(Maximumvehicledeceleration)Phase2:Reducedbrakingrequirement(Decelerationproportionaltopedalforce)barPhase1Phase2EmergencybrakingControlledbrakingActualdecelerationm/s²20161284012080400WheelPressureSwitchingthresholdMasterCylinderpressureHyundaiBrakeAssistantcontrolBAspeedfrontwheelspeedrearwheelspeedkm/hpressurebarpressureholdpressuredecreaseholdordecreaseEBD-controlABS-controlt(s)pressurefrontwheel0.25gdef.maxdifferencepressurerearwheelElectronicBrakeforceDistribution50km/hEBDBrakingcontrolonlowtractionsurfacesSpeedSwitchingsignals:Peripheralwheelacceleration,SlipBrakepressurePhase12345678VehiclespeedReferencespeedSlipswitchingthresholdPeripheralwheelspeedThresholdsofperipheralwheelaccelerationBrakepressuredecreaseThresholdsofperipheralwheeldecelerationABSAdvantagesofABSVehiclewithoutABSVehiclewithABSWheelspeedWheelacceleration/decellerationPhaseValveSignalBrakepressureWheelspinVehiclespeedTime01234543454TCSTractionCcontrolonlowtractionsurfacesSystemGeneralTCSfunctionVehiclespeedkm/h2250100150200SpeedDifferencekm/h246.58.5BrakeinterventionTorquereductionESPTurningradiuscenterCorneringforceCentrifugalforceCentrifugalforceCorneringforceTurningradiuscenterOversteeringNeutralsteeringUndersteeringRelationshipbetweencorneringforceandcentrifugalforceduringturnsESPRolloverprotection(ROP)WheelspeedsensorCAN-busYawrate/lateralGsensorSteeringpositionsensorCAN-busTorquereductionrequestECMESP-OperatingLightROPcontrolESPCUESPswitchROPONROPONROPOFFROPOFFTCSVehicleweightCenterofgravityLateralforceDownhillBrakeControl8km/hWheelspeedsensorStoplampswitchYawrate/2GsensorDBCswitchAcceleratorpedal2km/h–35km/hOFFSlopemin.8%ReleasedONOperatingtelltaleCAN-busDBCrelaySolenoidvalvesPumpmotorPressuresensorStoplampsBrakeapplicationDBCSlopemin.8%(4.5)TimeTorqueTimeTorque2sec.TimeTorqueTimeTorqueHillstartAssistControlWheelspeedsensorYawrate/2GsensorAcceleratorpedalD/Rrange(AT)Clutchswitch(MT)GearEngagedStoplampswitchONOFFActivatesolenoidvalvesBrakeengagedSlope8%(4.5)De-activatesolenoidvalvesBrakereleased0km/hSlopemin.8%ONOFFBraketorqueEnginetorqueGearEngagedCAN-busNeutralcontrol**DieselATonlySlope8%(4.5)Inputsandoutputs(sampleix35)WheelspeedtoECMBatterypowerWheelspeedsensorStoplampswitchClutchswitchESPswitchSteeringanglesensorYawrate/2GsensorESP-Off/FailuretelltaleESP-OperatingtelltaleESP-HydraulicelectroniccontrolunitECMECMCAN-BusBuiltinpressuresensorCAN-busCAN-busDBCswitchAcceleratorpedalABS-Operating/FailuretelltaleEBD-FailuretelltaleGearholdrequestECMCAN-busTorquereductionrequestCAN-busDBCrelayDBC-OperatingtelltaleCAN-busCAN-busCAN-busDiagnosisCAN-busDBC/ESPFailuretelltaleCAN-busCAN-busESSSpeedabove55km/hDeceleration7m/s²EnableconditionESS+Decelerationbelow2.5m/s²DisableconditionforESSTime(sec)Vehiclespeed(kph)30kph10kph10secESSdeactivation2.5m/s²Additionalfeatureoperation(onlyifspeedisbelow30km/hatthispoint)CASE-1CASE-2Additionalfeaturedeactivated(CASE-2)Additionalfeaturedeactivated(CASE-3)…ONOFFESSOperationSignalBrakeLampFlashHazardlamp*BasicFeatures*AdditionalFeature(3.5Hz)…ONOFFONOFFEmergencyStopSignalEPBSwitchEPBControlmodule&ActuatorSystemlayoutPullingforcePullingforceSignalinputtocontrolmoduleElectronicParkingBrakeEPBVehiclewithAirbagVehiclewithoutAirbagAIRBAGPASSIVESAFETYAirbagsFrontimpactsensorSupplementalestraintsystemcontrolmodule(SRSCM)Curtainairbags(CAB)Sideairbags(SAB)BeltpretensionersBuckleswitchSideimpactsensorDriverAirbagAdvancedairbagsystemSinglethresholdDoublethresholdAirbagsystemclassification,layoutBeltpretensioners(BPT)Buckleswitch(BS)Supplementalrestraintsystemcontrolmodule(SRSCM)Driverairbag(DAB)Passengerairbag(PAB)SinglesensortypeMultisensortypePa