多路复用系统电子学高级诊断课程

1、1copyright©FerrariSAT - Centro Formazione TecnicaContents 简介Body Computer Node 的功能网络管理PROXI 程序诊断2copyright©FerrariSAT - Centro Formazione Tecnica车身电器车身电器涉及到的功能3copyright©FerrariSAT - Centro Formazione TecnicaPassive safety Tyre pressureServo assisted operation Power windows Sunroof Se

2、at/steering wheel adjustment Rear-view mirror positionAlarm Motion sensing + antinclin. sensors Alarm SirenExternal lighting Signalling Controls Automated devices Headlight angle adjustment Acoustic signallingImmobilization CODE Steering lockVisibility Windscreen wipers Controls Automated devices De

3、frosting Windscreen wipers/headlight washersInternal lights Ceiling lights Control backlighting Courtesy lightsAccess Door locking system Remote control Keyless-goBody electronicsSafety车身电器的部分BODY COMPUTER NODEExternal lighting Signalling Controls Automated devices Acoustic signalling4copyright©

4、;FerrariSAT - Centro Formazione TecnicaPassive safety Tyre pressureServo assisted operation Power windows Sunroof Seat/steering wheel adjustment Rear-view mirror positionAlarm Motion sensing + antinclin. sensors Alarm SirenImmobilization CODEVisibility Windscreen wipers Controls Automated devices He

5、adlightsInternal lights Control backlighting Courtesy lightsAccess Door locking system Remote controlBody electronicsSafetyBody ComputerBody Computer ECU, 更好是称为 Body Computer Node, 在现代车辆上扮演一个关键的.基本上, 它是和 dashboard ECU安装在一起的, 称作CPL更好些, 就是上面安装了乘客舱保险丝和继电器的那一部分.5copyright©FerrariSAT - Centro Formaz

6、ione TecnicaDashboard ECU (CPL)SERVICE RELAY 2 安装在 dashboard ECU上, 直接由 Body Computer在 KEY-OFF后对某些功能持续供电3分钟.,6copyright©FerrariSAT - Centro Formazione TecnicaService Relay 2延时关闭功能Dashboard ECU (CPL)其他安装在 Dashboard ECU 上的继电器是: LOW-BEAMS, HEATED REARWINDOW and SERVICE RELAY, 最后的这个由钥匙来.7copyright&#

7、169;FerrariSAT - Centro Formazione TecnicaHeated rear window relayLow-beam relayService Relay 1(Key)Body Computer NodeCPL正面视图后面视图8copyright©FerrariSAT - Centro Formazione TecnicaBody Computer NodeVbattGNDINT/AA+15Stop light switchHandbrake ABS serial lineReverse gearFront ImmoFront RF RFL-CANH-

8、CAN9copyright©FerrariSAT - Centro Formazione TecnicaCILCSpeed /ABS sensorAlternatorSteering column stalkInstrument panelBrake fluid level sensorDoors/Luggage compartment /LidECUOptional devicesHigh-beam relayHigh-beam controlDoor locking/unlockingCeiling lightFog light relayHeated rear window c

9、ontrolHeadlight washer relayPosition lightsStop lightsDirection indicatorsRear fog lightSirenMotion sensing sensorsHazard LED.Body Computer Node基本特点 全部车辆网络的接口B-CAN 和 C-CAN 网络的 GATEWAY(网关)B-CAN 的网络主管master A-BUS的网络主管master W-BUS的网络主管master 诊断接口 (EOBD 接口)和CPL的接口 (dashboard ECU 和驾驶相关的功能)对 B-CAN 网络的系统诊断

10、 System diagnostics on CANIMMOBILIZER 集成在其中通过PROXI 文件进行车辆设置 Vehicle configuration10copyright©FerrariSAT - Centro Formazione TecnicaContents 简介Body Computer Node 的功能网络管理PROXI 程序诊断11copyright©FerrariSAT - Centro Formazione TecnicaRemote ControlBody Computer ECU 通过无线电波天线接受到钥匙其他模块的操作管理信号并且网络中

11、Door locking/unlocking Window/roof opening/closingLuggage compartmentlocking/unlocking12copyright©FerrariSAT - Centro Formazione TecnicaImmobilizer 防启动管理immobilizer 天线 并且和 Engine Control Node一Body Computer Node起启动.13copyright©FerrariSAT - CentroFormazione TecnicaImmobilizer防启动管理如果C-CAN 有故障

12、, 一条专门的串行线, W-line, 确保发正常启动.14copyright©FerrariSAT - Centro Formazione Tecnica车速信号备份Body Computer 从 C-CAN 接受到车速信号然后再以不同频率方波的形式其他不在网络上的模块.给NFRSuspensionECUHeadlight AngleAdjustment ECUServo steeringECU15copyright©FerrariSAT - Centro Formazione TecnicaSunroof ECU车速信号备份如果 C-CAN 有故障, 一条备用线将确保车

13、速信号到NBC.NFRHeadlightAiming ECUSuspensionECUServo steeringECU16copyright©FerrariSAT - Centro Formazione TecnicaSunroof ECUFIS Inertia Switch 管理!FISNVB!17copyright©FerrariSAT - Centro Formazione TecnicaFuel pump relayFuel Level 油位管理CILC = Fuel gaugecontrol18copyright©FerrariSAT - Centro

14、 Formazione Tecnica30%CILC“Alarm Memory”因为并没有真正的警报系统单元 Alarm System ECU, 系统是由 A-BUS连接的一些部件共同看到.的, ALARM MEMORY的数据可以在 NBC 诊断中ECU sirenAlarm systemsensors19copyright©FerrariSAT - Centro Formazione TecnicaContents 简介Body Computer Node 的功能网络管理PROXI 程序诊断20copyright©FerrariSAT - Centro Formazion

15、e Tecnica网络网关Gateway在整个网络中有几种不同的串行网络, Body Computer Node 在不同的网络之间用作网关 GATEWAY.Gateway = Bridge21copyright©FerrariSAT - Centro Formazione TecnicaB-CAN50KB/sec.C-CAN500 KB/sec.C-CAN络网络络EnginecompartmentPassengerNCSSuspension Control NodecompartmentNCMDXnd Engine l NodeRigprivateCANLuggagecompartm

16、entNASSteering ANBCBody Computer NodeNCMSXLeft-hand Engine Control NodeNCRElectronically-controlled Gearbox NodeNFRBraking Node (120)12022copyright©FerrariSAT - Centro Formazione TecnicaB-CAN 网络NPPPassenger DoorEnginecompartmentNodeLuggagecompartmentNCLA.C. NodeNAPPassenger Position Setup NodeN

17、SPParking Sensor NodeNABAirbag NodeNIMInside Roof NodeNQSInstrument Panel NodeNAGDriver Position Setup NodeNBCBody Computer NodePassengercompartmentNVOSteering Wheel NodeNVBLuggage Compartment NodeNPGDriver Door Node23copyright©FerrariSAT - Centro Formazione TecnicaNBC 网络连接插头 “F+G” (LN + LP)在 N

18、BC ECU上24copyright©FerrariSAT - Centro Formazione TecnicaPINSIGNALUSERINTERNAL CONNECTION7A-BUS serial LineCAVAZ2518K Line (Diagnosis)NCSKK13NBC网络连接插头 “D+E”(AV + AZ) 在 NBC ECU上25copyright©FerrariSAT - Centro Formazione TecnicaPINSIGNALUSERINTERNAL CONNECTIONS16Linea K (Diagnosi)?KK120Linea

19、 K (Diagnosi)NCM, NCRKK725Linea seriale A-BUSCSA, CTCLN726B-CAN ANTP, NCL27B-CAN BNTP, NCL32C-CAN L da vano motoreNCS, NAS, NFRAZ3633C-CAN H da vano motoreNCS, NAS, NFRAZ3735Linea K (Diagnosi) per zona anterioreNAC, NFR36C-CAN LAZ3237C-CAN HAZ33NBC网络连接Connector “D” (LL)on CPL ECU26copyright©Fer

20、rariSAT - Centro Formazione TecnicaPINSIGNALUSERINTERNAL CONNECTION10B-CAN A onpassenger compartment cableNPG, NPP, NVB, NIM, NAG, NSP28B-CAN B onpassenger compartment cableNPG, NPP, NVB, NIM, NAG, NSPNBC网络连接Connector “A+B+C”(PD+PF+PG)on NBC ECU27copyright©FerrariSAT - Centro Formazione Tecnica

21、PINSIGNALUSERINTERNAL CONNECTION5B-CAN ANQS, NAB6B-CAN BNQS, NAB11K Line (Diagnosis) for instrument panel zoneCSG, CAFKK912K Line (Diagnosis)?KK924B-CAN BNVO25B-CAN ANVO由 NBC 传送的数据着用于某些特定功能的其他串行网络.NBC 还管理和28copyright©FerrariSAT - Centro Formazione TecnicaTwilight sensorAlarm system sensorsECU s

22、irenRain sensorWindscreen wiper ECUB-CAN50KB/sec.C-CAN500 KB/sec.Taillight ECUs网络管理29copyright©FerrariSAT - Centro Formazione TecnicaType of Network ManagementAcronymNodeMaster nodeNBCBody Computer node“+ 30 powered” SlaveNQSInstrument Cluster nodeNPGDriver Door nodeNPPPassenger Door NodeNVBHat

23、ch Compartment nodeNCLAir Condition nodeNIMElectric Roof NodeNAGDriver Seat NodeNAPPassenger Seat NodeNTPTyre Pressure Node“+15 powered “ SlaveNVOSteering NodeNSPParking Sensor NodeNABAir Bag NodeNITInfo-Telematic node (F141)网络管理网络的运行以限制网络无负载时的电流消耗.NBC这是通过监测网络的状态并且决定是否使网络进入睡眠模式SLEEP mode, 在某些状态下,例如关

24、钥匙后4分钟, 或锁门后30秒.以这样的方式, 所有 +30 供电的模块都进入省电模式 POWERSAVE mode.30copyright©FerrariSAT - Centro Formazione Tecnica网络管理当发生一个唤醒 WAKEUP EVENT (例如. 门被, 开门, 钥匙打开到key ON, 等.) NBC 通过激活全部其他模块工作模式STAY-ON mode来“唤醒”网络.假如 Body Computer Node 有故障, 另一个模块将执行这能 (例如. Instrument Panel Node) 在钥匙打开到 ON 一定时间后网络仍未激活的情况下.3

25、1copyright©FerrariSAT - Centro Formazione TecnicaA-BUS 网络A-BUS network 是一种主从关系 MASTER-SLAVE 的串行线, 用于:q Alarm system 警报系统管理q 自动开启外部灯光q Windscreen wiper 雨刮ECU sirenAlarm systemsensorsTwilightsensorRain sensorWindscreenwiper ECU32copyright©FerrariSAT - Centro Formazione Tecnica网络管理33copyright

26、©FerrariSAT - Centro Formazione TecnicaE3Wake-Up EventFunctionActivation PARK LightsF032Activation HAZARDF052Ceiling Light OnF078Transition Door Open -> Door ClosedF091Transition Door Closed -> Door OpenPress Luggage Compartment unlock buttonF099RF activation requestF242网络管理34copyright

27、69;FerrariSAT - Centro Formazione TecnicaFun. IdNODEE4(Sleep -> Running)E2(Active Load)F078NIMActivation Ceiling Light buttonCeiling Light onF092NPG/NPPUnlock/Lock door using mechanical lockTransition Unlock/Lock door or viceversaF264NPG/NPPUnlock/Lock door using closure buttonUnlock/Lock Functio

28、n ActiveF301NPG/NPPExternal door handle pressedDrivers Side Door UnlockedF068NAGEASY-EXIT Function Active with Key-offF069NAP (F137 MY)EASY-EXIT Function Active with Key-offA-Bus 网络A-BUS network 是一种主从关系 MASTER-SLAVE 的串行线:q 管理 防盗系统anti-theft sytem;q 自动开启外部灯光;q 管理雨刮 windscreen wipersSirenECUAnti-theft

29、SensorTwlightSensorRain SensorWindscreenwiper ECU35copyright©FerrariSAT - Centro Formazione TecnicaContents 简介Body Computer Node 的功能网络管理PROXI 程序诊断36copyright©FerrariSAT - Centro Formazione Tecnica车辆编程Vehicle ProgrammingNBC 包含了 PROXI 文件.PROXI 文件是在生产线最后安装的车辆编程文件.文件包含了车辆配置的一系列信息, 例如, 网络中包含的模块

30、,发的类型, 车轮直径, 选装件, 等.PROXI = Integrated System Configuration Programming37copyright©FerrariSAT - CentroFormazione TecnicaPROXI Alignment校准用一个文件来设置所有的电子系统的好处是可以减少配件的数量,和在安装时有较大的灵活性使车辆的维修过程也变的比较简单了.其他一些模块也需要 PROXI Procedure来进行编程, 例如, 仪表模块Instrument Panel Node 或空调模块 A.C. Node.38copyright©Ferra

31、riSAT - Centro Formazione TecnicaPROXI Alignment校准随着特定的车身电脑Body Computer 诊断程序, 可以执行 PROXI ALIGNMENT, 例如, 更换模块.新的模块将被编写入和车身电脑 NBC 一样的 PROXI 文件以进行车辆配置的校准.39copyright©FerrariSAT - CentroFormazione Tecnica对 PROXI 的影响40copyright©FerrariSAT - Centro Formazione TecnicaCOMPONENT612 ScagliettiPROXI

32、Parking sensorsO-PTNew PROXI fileTPMS-Fog lights-Rear fog lightsOPTNew PROXI fileFront tyre diameterOPTRear tyre diameter-Air quality sensorOPTNew PROXI fileRUN-FLATOPTNew PROXI fileNBC更换Programming at SAIMANCL更换PROXI AlignmentNQS更换PROXI AlignmentNSP更换PROXI AlignmentNIT-NIM-Body Computer Node 车身电脑更换

33、车身电脑 Body Computer 必须从配件部门订购. 作为特别保护的定单, 在定单上注明所有车辆数据 (序列号, 经销商, 车主).车身电脑Body Computer 在 SAIMA 通过 GEAS 工作站编程, 然后至经销商.注:Proxi 代码包含了车辆的序列号. 这使得 SD3 可以检查 Proxi 代码以防止错用其他车辆的数据对现有车辆的车身电脑编程.全新的车身电脑 Body Computer 是在生产厂或 SAIMA 进行编程的, 而不是在经销商那里.41copyright©FerrariSAT - Centro Formazione TecnicaPROXI Ali

34、gnment 校准步骤 PROXI 文件校准是由 SD3NET来完成的!q 从电脑的列表里运行 程序“RicambiF137/M139” (F137/M139配件)q 当程序完成, 点击按钮 “PROXI ALIGNMENT” (F4)q 根据引导步骤. 正确输入序列号, 否则程序将被中止.42copyright©FerrariSAT - Centro Formazione TecnicaPROXI 过程对已配置模块的配置程序的响应:当网络唤醒 “WAKES UP”, NBC 询问已配置模块的编程状态, 而那些模块进行响应.PROG?PROG=OKPROG=NOT OK43copyr

35、ight©FerrariSAT - CentroFormazione TecnicaPROG=OK编程状态对已配置模块的配置程序的响应:如果一个模块的程序不同与 NBC, 网络将切换到安全模式并在仪表上显示相关的信号.NBC 的程序总是被认为是正确的.即使 “闯入” 的模块负责某些功能, 这些功能也被激活.44copyright©FerrariSAT - Centro Formazione TecnicaContents 简介Body Computer Node 的功能网络管理PROXI 程序诊断45copyright©FerrariSAT - Centro Fo

36、rmazione Tecnica集中诊断在车身电脑 NBC之中, 车辆诊断可以诊断接口PUD通过这一个点来进行.46copyright©FerrariSAT - Centro Formazione TecnicaPUD = Single Diagnosis Socket传统的诊断C-CAN 网络中的模块和电脑并未使用 CAN 网络来连接到诊断仪, 而是继续用传统的串行线 K-LINE.Servo steeringECUSuspensionECU47copyright©FerrariSAT - Centro Formazione TecnicaBraking NodeEngi

37、ne Control Node电脑 ”地址”的诊断地址.每一个电脑有它这样的话, 万一共享一条诊断线, 也只有一个电脑对相应的信息进行响应.548copyright©FerrariSAT - Centro Formazione TecnicaOKServo steering ECU (5)Suspension ECU (8)通过 B-CAN 诊断B-CAN 网络的模块采用了创新的方法通过相同的 B-CAN 网络传递诊断信息Passenger doornodeDriver door nodeInstrument panelnodeAirbag node49copyright©

38、FerrariSAT - Centro Formazione Tecnica诊断工具的演变诊断工具也必须改进为能够在B-CAN网络上进行诊断. 这时, 它网络的模块.也变作一个它通过 SD3 的插头连接到 B-CAN 网络.Instrument panelnodeDriver door nodeAirbag node50copyright©FerrariSAT - Centro Formazione TecnicaB-CAN同样有地址同样在B-CAN 的诊断中, 那些模块有一个诊断地址来确保只有被诊断的那一个模块才会作出响应.Driver door node(18)Instrumen

39、t panelnode (25)25OKAirbag node(12)51copyright©FerrariSAT - Centro Formazione TecnicaSystem Diagnostics系统诊断车身电脑 Body Computer Node 诊断包含了系统诊断 SYSTEM DIAGNOSTICS的信息.这是车辆诊断的最佳切入点, 尤其是网络故障或故障同时存在于几个系统中 52copyright©FerrariSAT - Centro Formazione TecnicaSystem Diagnostics系统诊断学习 CAN 网络的状态:系统诊断q C

40、ONFIGURED NODESq ACTIVE NODESq NODES WITH ERRORSq NODES WITH ERRORS PRESENTq NODES WITH CAN NETWORK ERRORSq Response to the configured nodes53copyright©FerrariSAT - Centro Formazione TecnicaCONFIGURED NODES 配置的模块CONFIGURED NODE配置的模块 系统诊断显示车辆编程时包含的模块 (PROXI).例如: 选装配置泊车传感器 parking sensors,航satellite navigator, 天窗sunroof, 等.导? = OK? = OK? = NO? = OK54copyright©