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Evolution of Automotive In-Vehicle Networking

Evolution of Automotive In-Vehicle Networking. Marc Osajda Global Automotive Segment Marketing Freescale Semiconductor. Immobilizer. RKE and TPMS Rx. Amplifier. Video. Video. Instrument Cluster. Radio. Nav. Display. Video. Seat Modules. Motors. Motors. Body Controller / Gateway.

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Evolution of Automotive In-Vehicle Networking

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  1. Evolution of Automotive In-Vehicle Networking Marc Osajda Global Automotive Segment MarketingFreescale Semiconductor

  2. Immobilizer RKE and TPMS Rx Amplifier Video Video Instrument Cluster Radio Nav Display Video Seat Modules Motors Motors Body Controller / Gateway Engine Management GlowPlug Motors Motors Alarm Airbag Motors Steering Column Cooling Fan Rear Module OccupantClassification Rain Sensor HVAC Chassis Management Flaps Fuel Pump Flaps Sunroof Flaps Driver Seat Belt Pretensioner Motors Flaps Flaps Motors Flaps SJB Lighting L Power Steering Motors Transmission Door Module Pass. Seat Belt Pretensioner Motors 4x4 Lighting R Motors Active Steering Motors Motors Door Module Motors Temp Blind Spot Detection Suspension Motors Sensor Cluster Suspension Motors Rear Lighting Suspension Motors Wipers Anti-lockBraking Suspension Battery Management Park Assist Adaptive Cruise Control In-Vehicle Networking complexity NOX Blower 1996 Typical Vehicle: 6 ECUs 2009 High-End Vehicle: > 70 ECUs

  3. Vehicle E/E Architecture Challenges • Too complex, too much energy consumption • Too many different networks • Too many ECUs • Too many cables • Too many connectors • Too much weight • Too many too many… With further electrification of the vehicles, A global rethinking of the vehicle E/E architecture is needed

  4. New trends in In-Vehicle Networking Architecture C2X Central Switch/ Gateway Vehicle Diagnostic/Access Ethernet Main Engine Controller Main Chassis Controller Main ADAS Controller Infotainment Controller Main Body Controller Stability Control HMI Satellite Reverse Camera Body Satellite 1 Transmission Chassis Satellite 1 Telephone Park Assist Camera Body Satellite 2 Energy Management Chassis Satellite 2 Infotainment Satellite 1 Blind Spot Detection Body Satellite 3 CAN FlexRay LDW Body Satellite 4 Ethernet/MOST Ethernet LIN Higher ECU integration and emergenceof domain controller will create new challenges in terms of functional safety (ISO26262) CAN

  5. Architectural Evolution – Ethernet in Automotive Why Ethernet in Vehicles ? • Well known technology, Widespread knowledge, Wide availability of tools • Ethernet can handle future bandwidth requirements for multiple in-vehicle application • Unshielded twisted pair Ethernet based network significantly reduces cost • Unified Ethernet architecture eases diagnosis and maintenance • Ethernet AVB audio profiles can substitute synchronous MOST

  6. Example: Ethernet Based High-End Infotainment Network Architecture Ethernet AVB for Infotainment Rear Seat Entertainment Peripheral Functions and Upgrade Options (Trunk) NAND flash NAND flash Comm/Telematics USB/IPOD USB/IPOD Nav Engine MCU MCU EthernetAVB EthernetAVB Audio out Infotainment MPU Audio out Switch Audio Amp DigitalRadio/TV MCU MCU Display Display EthernetAVB EthernetAVB Ethernet AVB Ethernet LVDS Dual-Stream Audio/Video Multi-Stream Audio/Control Raw Video Gateway: MCU Ethernet CarNetwork Media Server/Disc Player Ethernet AVB Service & Control Multi-Stream Audio/Video MCU Ethernet Switch Ethernet MCU EthernetAVB Service & Control Service & Control SPI MCU GigE Cluster:MCU EthernetAVB ADAS:MPU Infotainment:MPU Switch LVDS MCU EthernetAVB GigE Raw Video Dashboard MCU Head Unit EthernetAVB MCU Panorama View Front-ViewCamera LVDS EthernetAVB Raw Video

  7. Example of silicon implementationFreescale MPC5668G – Dedicated Gateway MCU Build on Power Architecture

  8. Functional Safety Objective of the ISO26262 Standard • Provides and automotive specific risk based approach for determining risk classes (ASIL) • Specify the necessary safety requirements for achieving an acceptable residual risk • Provides confirmation to ensure a sufficient level of safety is being achieved

  9. Functional Safety / ISO26262 • Functional safety is a key paradigm of next generation electronic vehicle systems • Safety standards are becoming the key enablerfor the design of all new electronicapplication in the vehicle and associated semiconductor development

  10. Freescale: No. 1 in Automotive Semiconductors • Freescale Leadership in Driving Standards • First semiconductor supplier to join the AUTOSAR development partnership • Co-founded FlexRayTM Consortium with BMW, DaimlerChrysler and Philips • Founding member of Local Interconnect Network LIN Consortium • Founding member of the DSIprotocol, and associated member of the PSI5 consortium (Airbag) • Member of the GENIVI Consortium (Infotainment) • Active member of JASPAR supporting Japanese automotive electronics standardization

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