車身控制器BCM設計方案PPT

1、車身控制器設計方案（中級車車身控制器設計方案（中級車 ）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 Mirror

2、Turn Light Turn LightCourtesy Light Courtesy LightLINLINExterior LightPower SeatWiper/WasherPower CurtainLow End BCMDDMBCMPDMMid-range System architectureBody Controller Module(LIN Master)Passenger Door Module(LIN Slave)Door LockWindow LiftKeypadMirror (& Turn Light)Power Seat controlWindow Lift

3、 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 Inte

4、rfaceLIN InterfaceLIN InterfaceRear door, Trunk & Bonnet statusCourtesy lightingPower SunroofPower CurtainInterior LightingDriver Door ModuleDDMMC9S08AW325VLM358ULQ2003RKERXB1PIC16F629ULQ2003WindowRelayCurrent SensorInput ConditionSunroofRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCur

5、rent SensorWindowRelayCurrent SensorMirror RelayMirror DriverTurn Light RelayInterior Light DriverLIN SBC Blue: LEYellow: MRWindow Motor Current * 2 Driver Door (& rear door) Block DiagramMirror DefrostCourtesy Light * 2(feet, courtesysigning)Window Motor * 2Rear Window DisableDoor Ajar Status 2

6、Door Lock Switch * 2GroundMC9S08AW32Power SupplyLINSBC+12VDigital InputAnalogInputRelayDriveLINLINWindow Switch * 82242Door Lock * 2Turn Light141620Mirror Switch * 7MirrorFolding22Relays are located inside PDMMC9S08AW32LM358ULQ2003RKERXB1PIC16F629ULQ2003WindowRelayCurrent SensorInput ConditionSunroo

7、fRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurrent SensorMirror RelayMirror DriverTurn Light RelayInterior Light DriverBlue: LEYellow: MR5VLIN SBC Window Motor Current * 2Passenger Door (& rear door) Block DiagramMirror DefrostWindow Motor * 2Rear Window Dis

8、ableDoor 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)BCMMC9S08AW325VLM358ULQ2003RKERX

9、B1PIC16F629ULQ2003WindowRelayCurrent SensorInput ConditionSunroofRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurrent SensorWindowRelayCurrent SensorTurn Light RelayInterior Light DriverLIN SBCMC9S12C32CAN SeatRelayCurrent SensorSeatRelayCurrent SensorSeatRelayCurrent SensorSeatRelayCurren

10、t SensorULQ2003Wiper RelayHorn RelayPower Curtain RelayInterior Light RelayExterior Light RelayDefrost RelayBlue: LEYellow: MRSiren/HornCentral Body Controller Block Diagram Relay SolutionDefrost and power curtainInterior Light (roof, map, glove, head reading, key hole)Seat Motor * 4Power Seat Switc

11、h * 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 Switch659Exterior LightFront/Rear

12、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 Siren Detection3Mid-Range Platfo

13、rm 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) WRear Fog Light(2*21) WRelaysLow Be

14、am(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 * 2HornMid Range Platform Architecture with IDCMCUTurn LightInterior LightRear Window Defrost Key Anti-Alarm RK

15、E 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 SeatWiper/WasherPower CurtainMM908E625MirrorMM9

16、08E624Window LiftDoor LockKeypadTurn LightCourtesy LightMM908E624Window LiftDoor LockKeypadMM908E625MirrorMM908E624Window LiftDoor LockKeypadTurn LightCourtesy LightMM908E624Window LiftDoor LockKeypadMirror- Distributed (IDC) ImplementationVBattGndLINIntelligent distributed control MM908E621 or MM90

17、8E625Mirror- Distributed (IDC) ImplementationAdvantagesLower number of I/CImproved reliability (lower no of solder joints)Reduced wiring harnessReduced sizeModulePCBDiagnosticsScalable architecture (MM908E625 v MM908E621 Med Hi end solution)Mirror commands made through LINDisadvantagesStill require

18、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 validationMirror- Centralised ImplementationPower supply andCommunicationVoltage R

19、egulatorCAN Physical layerBody computerModule BCMConfigurable octal serial switch as Quad H-bridgeMC33880SPIMirror position X-MotorMMSingle H-bridgeMirror FoldMMirror position Y-MotorD/AOutput driverElectrochromeTriple HSDHeaterSide flasherFoot lamp6PWM134STCRTLSTCRTLAdditional INPUTS of the moduleA

20、dditional OUTPUTS of the moduleMirror switch inputsSignal conditioning4Mirror- Centralised Implementation Pro / ConAdvantagesFocused implementation for required functionMCU selection optimised for applicationMinimal control latencyDisadvantagesDifficulty in measuring mirror positionDiagnostics requi

21、res added sophistication of H/W driversIncreased number of wires in harnessHarness routingHarness costDirect switch input required to control the mirror positionDesign challenge PCB size Minimum PCB size: 60mmx60mmHigh-end EC Mirror DiagramModule PCB LayoutNumber of Power IC: 5-7Number of Digital Si

22、gnal: 24Source: Power IC devices are sampled from 2 major vendors in the industry (excluding Freescale)Design challenge PCB size40mm60mm40mm60mm56% ShrinkPCB size: 40mmx40mm, 56% shrink in sizeHigh-end EC Mirror DiagramModule PCB LayoutNumber of Power IC: 1Number of Digital Signal: 2 (INT/RST)Mirror

23、 implementations ComparisonDistributed (IDC)Distributed (MCU+SMOS)CentralizedComponent costMediumHiMediumFunctionalityHiHiHiScalability FlexibilityMediumMediumMediumEase of implementationHiMediumMediumReliabilityHiMediumLoEase of manufactureHiMediumLoWindow Lift- Distributed ImplementationIDC - MM90

24、8E624VBattGndLINVoltage regulatorMCUReset controlWatchdogSPILIN physical layerHigh side driverOPAMPSwitch inputsPackageSOIC54Switch inputsWindow lift motorBEMF detection using internal OPAMPWindow Lift- Distributed Pro / ConAdvantagesLower number of I/CImproved reliability (lower no of solder joints

25、)Reduced wiring harnessReduced sizeModulePCBDiagnostic Scalable architectureDisadvantagesStill require relays to drive loadNeed to program and debug node softwareAdded functionality which may not be required for low end systemAdded complexity for module H/W, packaging and validationWindow Lift- Cent

26、ralised control Implementation Power supply andCommunicationVoltage RegulatorCAN Physical layerMain central bodyMCUOctal serial switch as Relay driverMC33291LSPIWindow lift motor MSignal conditioningPosition feedback for Anti-pinch4ATDAdditional INPUTS of the moduleAdditional OUTPUTS of the moduleWi

27、ndow switch inputsSignal conditioning2 I/ORelay1Relay Window Lift- Centralised control Pro / ConAdvantagesFocused implementation for required functionLow component costMCU selection optimised for applicationMinimal control latencyDisadvantagesDifficulty in measuring anti-pinch from Central body cont

28、rollerPoor scalabilityNo diagnosticsIncreased number of wires in harnessHarness routingHarness costAdditional H/W required for speed control possibleIncreased MCU functionality for stall detectionControl of multiple windows at same timeWindow Lift ComparisonDistributedCentralizedComponent costMedium

29、LoFunctionalityHiMediumScalability FlexibilityHiLoEase of implementationMediumMediumReliabilityHiLoEase of manufactureHiLoDoor lock + Window lift Distributed ImplementationIDC MM908E624VBattGndLINVoltage regulatorMCUReset controlWatchdogSPILIN physical layerHigh side driverOPAMPSwitch inputsPackageS

30、OIC54Switch inputsWindow lift motorBEMF detection using internal OPAMPWindow liftDual low side driver3GPIOMH-bridgeDoor lock motorDoor lockDoor lock + window lift Distributed Pro / ConAdvantagesReuse existing Window H/W already in doorReduced wiring harnessReduced size Module PCBScalable architectur

31、eDisadvantagesStill require relays to drive loadNeed additional relay drivers addedNeed to program and debug node softwareAdded 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 En

32、tryDoor lock + window lift Centralised Implementation Power supply andCommunicationVoltage RegulatorCAN or LIN Physical layerCentral bodyMCUOctal serial switch as Relay driverMC33291LSPISignal conditioningPosition feedback for window Anti-pinch4ATDAdditional INPUTS of the moduleAdditional OUTPUTS of

33、 the moduleSignal conditioning2 I/ORelay1RelayWindow lift motorWindow lift switchesMSignal conditioningDoor lock switches2 I/OH-BridgeDoor lock motorM2 I/ODoor lock + window lift Centralised Pro / ConAdvantagesOctal serial driver (MC33291) used for all door relay pre-driveFocused implementation for

34、required functionMinimal control latencyDisadvantagesNeed to add discrete relay pre-driver for Boot lockLess scalabilityNo diagnosticsIncreased number of wires in harness Harness routing Harness costDoor Lock + Window LiftSleep Current ConsumptionPower IC Sleep Mode Operation ConditionPower supply c

35、hip in sleep (LIN wakeup) modeMicrocontroller shutdownPower ICs in sleep modeAssume no additional current assumption from discrete componentsTotal Sleep Current: 331uACentralizedIDC Sleep Mode Operation ConditionSystem in sleep (LIN/Input wakeup) modeMicrocontroller shutdownTotal Sleep Current: 20uA

36、Current Consumption Reduction: 94%ShutdownSleep ModeDistributedDoor lock ComparisonDistributedCentralizedComponent costLoMediumFunctionalityHiMediumScalability FlexibilityHiLoEase of implementationMediumMediumReliabilityHiMediumEase of manufactureHiLoSummaryRelay Mid-Range DDM, PDM can use most of h

37、ardware and software of Low end platform Low cost No diagnosis functionIDC Modular design Can be easier to upgrade to High end platform Flexible Low power consumption Low costAnalog Centralized control with smaller space and more functions High reliability ExpensiveHigh End Platform ArchitectureMCU 9S12C64Interior LightRear Window Defrost Key Anti-Alarm RKE Sun roofMirrorTurn LightLINLINExterior LightPower SeatWiper/