角度傳感器SteeringAngleSensor解析

SteeringAngleSensor

角度傳感器

1SteeringAngleSensor(SAS)roadcourse

角度傳感器發(fā)展歷程2TrueAbsoluteAnalogtrack+

GrayCodetrackGenIII+確定值模擬軌+格雷碼軌+GENIII+SAS

角度傳感器Incrementabsolute

GenI確定增量形第一代

TrueAbsoluteGrayCodetrack

GenIII

確定值格雷碼軌GENIII

Increment

absolute

GenII

(Software)

確定增量形GenII（軟件型）SteeringAngleSensor

角度傳感器Absolutevaluedeviceforsteeringpositionandanglespeed轉(zhuǎn)向柱位置和角速度確定值測(cè)量裝置Initializationaftermax.6°最大六度后初始化Anglerange±(3*360)°測(cè)角范圍±(3*360)°Resolution<1,4°辨別率<1,4°Tolerance±0,2°公差±0,2°Errortolerantsystem容錯(cuò)系統(tǒng)Contactlesslyworkingsystem無(wú)接觸式工作系統(tǒng)Costoptimizationbyreductionofthenumberofsensors通過(guò)削減傳感器數(shù)量達(dá)到成本最優(yōu)化Multistepcodingsystem多步編碼系統(tǒng)3SteeringAngleSensorAssembly

角度傳感器裝配圖Digitallycodedsensor數(shù)字型代碼傳感器Opticalsensorelements光學(xué)傳感部件Redundantcodingsystem冗余編碼系統(tǒng)2CONTROLLERSelectronicsconcept兩個(gè)電子限制器sleepcurrent<1mA靜止電流<1mAHighspeed-Lowspeed-C-CANLIN-Businterface凹凸速CAN網(wǎng)絡(luò)和LIN總線(xiàn)接口Integratedinspringassemblyspringassemblyspringassemblies集成的彈簧裝配SteeringAngleSensorElectronics

角度傳感器電子部件54-bitCoding4位編碼器Absoluterecognitionafterselectionsof3steps三步選擇后的確定值確認(rèn)Directionofrotationrecognitionoverincrementalgivermechanism

增量補(bǔ)償機(jī)構(gòu)之上的旋轉(zhuǎn)方向確認(rèn)Dataredundancy數(shù)據(jù)冗余SteeringAngleSensorMulti-turnConcept

角度傳感器多圈概念Electronicroundscounters電子轉(zhuǎn)數(shù)計(jì)數(shù)器Absolutevaluedirectlyafterignitionavailable點(diǎn)火后確定值干脆獲得Initializationbycontrollerorselfidentification通過(guò)限制單元或自識(shí)別初始化Quiescentcurrentconcept靜態(tài)電流設(shè)計(jì)OnlyincrementalcontrolofameasuringchannelWakeUPduringsteeringmovement測(cè)試通道在喚醒狀態(tài)下漸增限制當(dāng)操縱桿移動(dòng)時(shí)Nomechanicalroundscounternecessarily沒(méi)有必要進(jìn)行機(jī)械轉(zhuǎn)數(shù)計(jì)數(shù)TRWSteeringAngleSensorinProduction

量產(chǎn)的TRW角度傳感器SOP9/2000SOP9/2000Securityconceptintegratedintothesystem平安性集成入系統(tǒng)DoublecomputerconceptwithReduktanzcontrol冗余雙電腦限制設(shè)計(jì)ControllerWatchdogprinciple限制器看門(mén)狗LEDfunctioncontrolLED功能限制Steeringanglesensorofintegralacomponentoftheguidancestickhousing角度傳感器作為集成元件裝在導(dǎo)桿槽Scopeofsupplyofthesafetysystem屬于平安系統(tǒng)的范圍NextGeneration

SteeringAngleSensor

下一代角度傳感器MechanicalDesign

機(jī)械設(shè)計(jì)9PAPCB線(xiàn)路板BasePlate基板Screw

螺絲CodeWheel編碼輪CouplerRing配合環(huán)StrikerBush震動(dòng)襯套SwitchHousing開(kāi)關(guān)支架

TechnicalAssumptions

技術(shù)設(shè)想NonAbsolutesteeringanglesensor沒(méi)有確定轉(zhuǎn)動(dòng)角度傳感器AnglecodingsameasforGENIIproducts角度編碼和GENII產(chǎn)品一樣LimitedheighttoimplementcodewheelusingteethprincipleasforOpelSAS運(yùn)用和OPELSAS一樣的齒設(shè)計(jì)實(shí)現(xiàn)編碼輪限高Newopticalreflectionprincipleleadstoaslimdesign新的光學(xué)反射原理達(dá)到細(xì)小設(shè)計(jì)NewHWdevelopmentusingstandardcomponents運(yùn)用標(biāo)準(zhǔn)元件的新的HW開(kāi)發(fā)SWdevelopmentbasedonGENII基于GENII的SW開(kāi)發(fā)Separateclockspring,carryoverfromcurrentproduct現(xiàn)有產(chǎn)品持續(xù)的獨(dú)立的時(shí)鐘彈簧IntheoffernodemandsforSILrequirements無(wú)SIL條件的要求10Analogtrack+GrayCodetrack

SteeringAngleSensorAnalog

TechnicalData

角度傳感器模擬技術(shù)數(shù)據(jù)12AbsoluteSensorforanglepositionandspeed角度位置和速度的確定感應(yīng)Contactlessangledetectionusingopticalsensors通過(guò)光學(xué)傳感器的無(wú)接觸角度探測(cè)AngledirectlydetectedafterKl.15onwithoutmovingsteeringwheel

(TruePowerOn)KL.15開(kāi)啟后角度自動(dòng)探測(cè),無(wú)須轉(zhuǎn)動(dòng)方向盤(pán)(打開(kāi)電源)Anglerange:+/-720°角度范圍:+/-720°Resolution:0.5...辨別率:0.5...Failuredetection->Failsafemode故障探測(cè)->故障平安模式Costandlightintensityoptimizedduetosensordedicatedlightdistribution光傳感器分布的設(shè)計(jì)使成本和亮度最優(yōu)化Blackcodewheelcarrieslightreflectingtracks黑色解碼輪在光反射軌跡上Lightdistribution光安排Codingisreachedbyreflection通過(guò)反射解碼Safetyrecordofthefunction,thelighttransmitterisreachedbyaspecialGrayCodearrangement.Areceiverwithlightisfundamentalsubjected,thusthatthesoftwareofeveryonewasentitledthesteeringwheelanglesensortodiagnose.功能的平安記錄,光放射器通過(guò)特定的灰度編碼支配.光接受器基本對(duì)應(yīng),因此每個(gè)接受器的軟件程序均棵診斷角度傳感器.1314analogTrack

.BlockDiagram模塊接線(xiàn)圖主回路副回路角度傳感器探測(cè)旋轉(zhuǎn)傳感器探測(cè)電源HS-CANLIN-接口喚醒可選AnalogTrack

Sensor

Electronictopic

電子課題Digitalcodedsensor數(shù)字編碼傳感器Safetyconceptintegratedinthesystem:2-controllerconcept平安性集成系統(tǒng):2個(gè)限制器Redundancyforsensorreading傳感器讀取冗余Redundancyformonitoringcruisecontrol監(jiān)視巡航限制冗余ExternalwindowwatchdogWatchdogtimerineachcontroller->mutualsurveillanceMonitoringofbatteryvoltage每個(gè)限制器的外部的看門(mén)狗和看門(mén)狗時(shí)鐘->交互式監(jiān)視電池電壓EEPROM4kBitEEPRPM4K位High(/Low)speedC-CANinterface高速(低速)C-CAN接口LINinterfaceLIN接口Quiescentcurrentduringignitionoff:~0μA點(diǎn)火關(guān)時(shí)靜態(tài)電流:~0μA15Firmwaretopic

緊固件課題Controller限制器CodeMemoryspace:編碼內(nèi)存空間

ControllerA(Master):A限制器(主限制器)32kByteROM/Flash32K字節(jié)ROM/FLASH~2kByteRAM~2K字節(jié)RAMControllerB(Slave):B限制器(副限制器)16kByteROM/Flash16K字節(jié)ROM/FLASH~2kByteRAM~2K字節(jié)RAM16MainModules主要模塊OSEKRTOS/TRWRTOSOSEKRTOS/TRWRTOSInputs/Out