车身控制器BCM设计方案PPT(PPT 33页)

1、车身控制器设计方案（中级车 ）第1页，共33页。Mid Range Platform ArchitectureMCUDriver DoorDoor LockWindow LiftRear Left DoorDoor LockWindow LiftPassenger DoorDoor LockWindow LiftRear Right DoorDoor LockWindow LiftTurn LightInterior LightRear Window Defrost Key Anti-Alarm RKE Sun roof Keypad KeypadMCUMCUMirror MirrorTurn

2、 Light Turn LightCourtesy Light Courtesy LightLINLINExterior LightPower SeatWiper/WasherPower CurtainLow End BCMDDMBCMPDM第2页，共33页。Mid-range System architectureBody Controller Module(LIN Master)Passenger Door Module(LIN Slave)Door LockWindow LiftKeypadMirror (& Turn Light)Power Seat controlWindow Lif

3、t Rear RightWindow Lift Rear LeftRKECourtesy lighting(LIN Slave)Door LockWindow LiftKeypadCourtesy lightingFront LightingRear LightingMirror (& Turn Light)Rear Window DefrostFront wiper & washerHorn controlAntitheft AlarmDoor LockLIN NetworkCAN InterfaceCAN Network(link to Powertrain)LIN InterfaceLI

4、N InterfaceLIN InterfaceRear door, Trunk & Bonnet statusCourtesy lightingPower SunroofPower CurtainInterior LightingDriver Door Module第3页，共33页。DDMMC9S08AW325VLM358ULQ2003RKERXB1PIC16F629ULQ2003WindowRelayCurrent SensorInput ConditionSunroofRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurre

5、nt SensorWindowRelayCurrent SensorMirror RelayMirror DriverTurn Light RelayInterior Light DriverLIN SBC Blue: LEYellow: MR第4页，共33页。Window Motor Current * 2 Driver Door (& rear door) Block DiagramMirror DefrostCourtesy Light * 2(feet, courtesysigning)Window Motor * 2Rear Window DisableDoor Ajar Statu

6、s 2Door Lock Switch * 2GroundMC9S08AW32Power SupplyLINSBC+12VDigital InputAnalogInputRelayDriveLINLINWindow Switch * 82242Door Lock * 2Turn Light141620Mirror Switch * 7MirrorFolding22Relays are located inside 第5页，共33页。PDMMC9S08AW32LM358ULQ2003RKERXB1PIC16F629ULQ2003WindowRelayCurrent SensorInput Con

7、ditionSunroofRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurrent SensorMirror RelayMirror DriverTurn Light RelayInterior Light DriverBlue: LEYellow: MR5VLIN SBC 第6页，共33页。Window Motor Current * 2Passenger Door (& rear door) Block DiagramMirror DefrostWindow Motor *

8、 2Rear Window DisableDoor Ajar Status 2Door Lock Switch * 2GroundMC9S08AW32Power Supply5VSBC+12VDigital InputAnalogInputRelayDriveLINLINWindow Switch * 42242Door Lock * 2Turn Light14168Mirror Switch * 7MirrorFolding22Relays are located inside Courtesy Light * 2(feet, courtesy,signing)第7页，共33页。BCMMC9

9、S08AW325VLM358ULQ2003RKERXB1PIC16F629ULQ2003WindowRelayCurrent SensorInput ConditionSunroofRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurrent SensorTurn Light RelayInterior Light DriverLIN SBCMC9S12C32CAN SeatRelayCurrent SensorSeatRelayCurrent SensorSeatRelayCur

10、rent SensorSeatRelayCurrent SensorULQ2003Wiper RelayHorn RelayPower Curtain RelayInterior Light RelayExterior Light RelayDefrost RelayBlue: LEYellow: MR第8页，共33页。Siren/HornCentral Body Controller Block Diagram Relay SolutionDefrost and power curtainInterior Light (roof, map, glove, head reading, key

11、hole)Seat Motor * 4Power Seat Switch * 8Exterior Light Switch * 12Key Status * 4GroundMC9S12C/Q32Power Supply5V+12VDigital InputAnalogInputRKEReceiverRelayDriveMC33291LLEDDriverSiren(Relay)LIN, CAN, KLIN, CAN, K LineTrunk & bonnet statusSunroof Switch * 23Sunroof Motor Sensor5Rear Window Defrost Swi

12、tch659Exterior LightFront/Rear Wiper, Front Washer6Antitheft LEDSunroof Motor22738BuzzerBuzzerPower Seat Motor Current*4Interior Light SwitchWiper, Washer Switch * 5High beam: 1Low beam: 1Tail,License:1Turn Light: 2Fog: 2Reverse Light: 1Brake Light: 1Power Curtain * 2Key Lock SolenoidHornAntitheft S

13、iren Detection3第9页，共33页。Mid-Range Platform with analog IC MC9S12C32MC33661LINMC33388CANMC33972Switch DetectionMC33972Switch DetectionMC332862*6AReverse Light(2*21) WMC332882*8ATurn Light (2*21+5)WTurn Light (2*21+5)WMC338882*10A2*5A8*0.5ABrake Light(2*21+10) WHigh Beam(2*55) WTail&License Light(6*5)

14、 WRear Fog Light(2*21) WRelaysLow Beam(2*55W)Front Fog Light(2*55W)Rear Window DefrostFront Wiper low speedFront WasherRear WiperInterior LightFront Wiper high speed2*ULQ2003RelaysPower Seat Relay * 5Power curtain * 2Sunroof * 2Horn第10页，共33页。Mid Range Platform Architecture with IDCMCUTurn LightInter

15、ior LightRear Window Defrost Key Anti-Alarm RKE Sun roofDriver DoorDoor LockWindow LiftRear Left DoorDoor LockWindow Lift KeypadMCUMirrorTurn LightCourtesy LightPassenger DoorDoor LockWindow LiftRear Right DoorDoor LockWindow Lift KeypadMCU Mirror Turn Light Courtesy LightLINLINExterior LightPower S

16、eatWiper/WasherPower CurtainMM908E625MirrorMM908E624Window LiftDoor LockKeypadTurn LightCourtesy LightMM908E624Window LiftDoor LockKeypadMM908E625MirrorMM908E624Window LiftDoor LockKeypadTurn LightCourtesy LightMM908E624Window LiftDoor LockKeypad第11页，共33页。Mirror- Distributed (IDC) ImplementationVBat

17、tGndLINIntelligent distributed control MM908E621 or MM908E625第12页，共33页。Mirror- Distributed (IDC) ImplementationAdvantagesLower number of I/CImproved reliability (lower no of solder joints)Reduced wiring harnessReduced sizeModulePCBDiagnosticsScalable architecture (MM908E625 v MM908E621 Med Hi end so

18、lution)Mirror commands made through LINDisadvantagesStill require some added power hardware (heater)Implement power management scheme Need to program and debug node softwareAdded functionality which may not be required for low end systemAdded complexity for module H/W, packaging and validation第13页，共

19、33页。Mirror- Centralised ImplementationPower supply andCommunicationVoltage RegulatorCAN Physical layerBody computerModule BCMConfigurable octal serial switch as Quad H-bridgeMC33880SPIMirror position X-MotorMMSingle H-bridgeMirror FoldMMirror position Y-MotorD/AOutput driverElectrochromeTriple HSDHe

20、aterSide flasherFoot lamp6PWM134STCRTLSTCRTLAdditional INPUTS of the moduleAdditional OUTPUTS of the moduleMirror switch inputsSignal conditioning4第14页，共33页。Mirror- Centralised Implementation Pro / ConAdvantagesFocused implementation for required functionMCU selection optimised for applicationMinima

21、l control latencyDisadvantagesDifficulty in measuring mirror positionDiagnostics requires added sophistication of H/W driversIncreased number of wires in harnessHarness routingHarness costDirect switch input required to control the mirror position第15页，共33页。Design challenge PCB size Minimum PCB size:

22、 60mmx60mmHigh-end EC Mirror DiagramModule PCB LayoutNumber of Power IC: 5-7Number of Digital Signal: 24Source: Power IC devices are sampled from 2 major vendors in the industry (excluding Freescale)第16页，共33页。Design challenge PCB size40mm60mm40mm60mm56% ShrinkPCB size: 40mmx40mm, 56% shrink in sizeH

23、igh-end EC Mirror DiagramModule PCB LayoutNumber of Power IC: 1Number of Digital Signal: 2 (INT/RST)第17页，共33页。Mirror implementations ComparisonDistributed (IDC)Distributed (MCU+SMOS)CentralizedComponent costMediumHiMediumFunctionalityHiHiHiScalability FlexibilityMediumMediumMediumEase of implementat

24、ionHiMediumMediumReliabilityHiMediumLoEase of manufactureHiMediumLo第18页，共33页。Window Lift- Distributed ImplementationIDC - MM908E624VBattGndLINVoltage regulatorMCUReset controlWatchdogSPILIN physical layerHigh side driverOPAMPSwitch inputsPackageSOIC54Switch inputsWindow lift motorBEMF detection usin

25、g internal OPAMP第19页，共33页。Window Lift- Distributed Pro / ConAdvantagesLower number of I/CImproved reliability (lower no of solder joints)Reduced wiring harnessReduced sizeModulePCBDiagnostic Scalable architectureDisadvantagesStill require relays to drive loadNeed to program and debug node softwareAd

26、ded functionality which may not be required for low end systemAdded complexity for module H/W, packaging and validation第20页，共33页。Window Lift- Centralised control Implementation Power supply andCommunicationVoltage RegulatorCAN Physical layerMain central bodyMCUOctal serial switch as Relay driverMC33

27、291LSPIWindow lift motor MSignal conditioningPosition feedback for Anti-pinch4ATDAdditional INPUTS of the moduleAdditional OUTPUTS of the moduleWindow switch inputsSignal conditioning2 I/ORelay1Relay第21页，共33页。 Window Lift- Centralised control Pro / ConAdvantagesFocused implementation for required fu

28、nctionLow component costMCU selection optimised for applicationMinimal control latencyDisadvantagesDifficulty in measuring anti-pinch from Central body controllerPoor scalabilityNo diagnosticsIncreased number of wires in harnessHarness routingHarness costAdditional H/W required for speed control pos

29、sibleIncreased MCU functionality for stall detectionControl of multiple windows at same time第22页，共33页。Window Lift ComparisonDistributedCentralizedComponent costMediumLoFunctionalityHiMediumScalability FlexibilityHiLoEase of implementationMediumMediumReliabilityHiLoEase of manufactureHiLo第23页，共33页。Do

30、or lock + Window lift Distributed ImplementationIDC MM908E624VBattGndLINVoltage regulatorMCUReset controlWatchdogSPILIN physical layerHigh side driverOPAMPSwitch inputsPackageSOIC54Switch inputsWindow lift motorBEMF detection using internal OPAMPWindow liftDual low side driver3GPIOMH-bridgeDoor lock

31、 motorDoor lock第24页，共33页。Door lock + window lift Distributed Pro / ConAdvantagesReuse existing Window H/W already in doorReduced wiring harnessReduced sizeModulePCBScalable architectureDisadvantagesStill require relays to drive loadNeed additional relay drivers addedNeed to program and debug node so

32、ftwareAdded functionality which may not be required for low end systemAdded complexity for module H/W, packaging and validationCommunications over LIN may impact latency for Passive Entry第25页，共33页。Door lock + window lift Centralised Implementation Power supply andCommunicationVoltage RegulatorCAN or

33、 LIN Physical layerCentral bodyMCUOctal serial switch as Relay driverMC33291LSPISignal conditioningPosition feedback for window Anti-pinch4ATDAdditional INPUTS of the moduleAdditional OUTPUTS of the moduleSignal conditioning2 I/ORelay1RelayWindow lift motorWindow lift switchesMSignal conditioningDoo

34、r lock switches2 I/OH-BridgeDoor lock motorM2 I/O第26页，共33页。Door lock + window lift Centralised Pro / ConAdvantagesOctal serial driver (MC33291) used for all door relay pre-driveFocused implementation for required functionMinimal control latencyDisadvantagesNeed to add discrete relay pre-driver for B

35、oot lockLess scalabilityNo diagnosticsIncreased number of wires in harnessHarness routingHarness cost第27页，共33页。Door Lock + Window LiftSleep Current ConsumptionPower IC Sleep Mode Operation ConditionPower supply chip in sleep (LIN wakeup) modeMicrocontroller shutdownPower ICs in sleep modeAssume no a

36、dditional current assumption from discrete componentsTotal Sleep Current: 331uACentralizedIDC Sleep Mode Operation ConditionSystem in sleep (LIN/Input wakeup) modeMicrocontroller shutdownTotal Sleep Current: 20uACurrent Consumption Reduction: 94%ShutdownSleep ModeDistributed第28页，共33页。Door lock Compa

37、risonDistributedCentralizedComponent costLoMediumFunctionalityHiMediumScalability FlexibilityHiLoEase of implementationMediumMediumReliabilityHiMediumEase of manufactureHiLo第29页，共33页。SummaryRelayMid-Range DDM, PDM can use most of hardware and software of Low end platformLow costNo diagnosis function

38、IDCModular designCan be easier to upgrade to High end platformFlexibleLow power consumptionLow costAnalogCentralized control with smaller space and more functionsHigh reliabilityExpensive第30页，共33页。High End Platform ArchitectureMCU 9S12C64Interior LightRear Window Defrost Key Anti-Alarm RKE Sun roofMirrorTurn LightLINLINExterior LightPower SeatWiper/