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11RBAC-CC/ESS|07/06/2007|©RobertBoschGmbH2007Allrightsreservedalsoregardinganydisposalexploitationreproductioneditingdistributionaswellasintheeventofapplicationsforindustrialpropertyrights1995DRS 1998DRS- 2005DRS-

2010DRS-MeasuringPrinciple TheyawratesensorisaCVG- CoriolisVibratingCoriolis:whenalinearmovementissuperimposedwithan(orthogonal)rotation,theresultingpathcorrespondstothelaw:aCor2*v* aCorCoriolis-acceleration(科氏加速度 velocity(ofthevibratingstructure)(震动速度 rotationalspeed(yawrate)(横摆率vSensorConstructionsensorelement sensorelement sensorelementyawrate W sensorelementsensorelementaccel./yawa/DigitalDataregulator5V,16-bitMicrocontroller32kBROM2kB20512SignalThesensor-clusterDRS-MM3.R7kprovidesthefollowingsignalsforESPsystem:Rotationalvelocityaroundz- =yawrate(when =偏航Lateralaccelerationiny-axis =aY(whencornering,lateral =Longitudinalaccelerationinx-axis=aX(whenac-/decelerating,long.Incl…) Typicalmeasuringrangesare测量范围:yawrate偏航率: +/-100°/s +/-1,8G=18m/s² +/-1,8G=18SystemApplicationHHC,PhysicalLayout.TechnicalDataYRSYawYawRateSensor偏航率LinearAccelerationSensor+/-MeasuringRange测量范围Electricalnoise0,2°/s0,01gOperatingtemp.Range-40°C...SupplyVoltageRange7…CurrentConsumptionInstallationbasicprinciple Inertialsensors(IS)areusedinVehicleDynamicControlThesensorsshouldmeasureyawrate,lateralaccelerationandlongitudinalaccelerationofthevehicleonly. Duetothesensormeasuringprinciple,whichisbasedonacceleration,disturbingvibrationathighamplitudeandinacriticalfrequencyrangehavetobelimitedatthemountinglocationoftheIS. Themountingpositionofth