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T062500000 p003050ppte

  1. 1. Evolution of Automotive In-Vehicle Networking Marc Osajda Global Automotive Segment Marketing Freescale Semiconductor
  2. 2. NOX Blower 1996 Typical Vehicle: 6 ECUs 2009 High-End Vehicle: > 70 ECUs In-Vehicle Networking complexity Amplifier Video Video Video Display Instrument Cluster Temp Wipers RKE and TPMS Rx Seat Modules HVAC Alarm Rear Module Rear Lighting Door Module Door Module Radio Nav Transmission Fuel Pump Airbag Occupant Classification Pass. Seat Belt Pretensioner Driver Seat Belt Pretensioner Sensor Cluster Battery Management SJB 4x4 Blind Spot Detection Immobilizer Glow Plug Cooling Fan Lighting L Steering Column Rain Sensor Flaps Flaps Flaps Flaps Flaps Flaps Motors Motors Motors Motors Motors Motors Motors Motors Motors Motors Motors Motors Motors Motors Motors Motors Sunroof Lighting R Power Steering Anti-lock Braking Adaptive Cruise Control Park Assist Suspension Suspension Suspension Suspension Active Steering Body Controller / Gateway Chassis Management Engine Management
  3. 3. Vehicle E/E Architecture Challenges <ul><li>Too complex , too much energy consumption </li></ul><ul><li>Too many different networks </li></ul><ul><li>Too many ECUs </li></ul><ul><li>Too many cables </li></ul><ul><li>Too many connectors </li></ul><ul><li>Too much weight </li></ul><ul><li>Too many too many… </li></ul>With further electrification of the vehicles, A global rethinking of the vehicle E/E architecture is needed
  4. 4. New trends in In-Vehicle Networking Architecture LIN CAN Body Satellite 1 Body Satellite 2 Body Satellite 3 Body Satellite 4 HMI Satellite Telephone Infotainment Satellite 1 Ethernet/MOST Reverse Camera Park Assist Camera Blind Spot Detection LDW Ethernet Stability Control Chassis Satellite 1 Chassis Satellite 2 FlexRay Energy Management CAN Transmission Central Switch/ Gateway Main Body Controller Infotainment Controller Main ADAS Controller Main Chassis Controller Main Engine Controller Ethernet Vehicle Diagnostic/Access Higher ECU integration and emergence of domain controller will create new challenges in terms of functional safety (ISO26262) C2X
  5. 5. Architectural Evolution – Ethernet in Automotive <ul><li>Well known technology, Widespread knowledge, Wide availability of tools </li></ul><ul><li>Ethernet can handle future bandwidth requirements for multiple in-vehicle application </li></ul><ul><li>Unshielded twisted pair Ethernet based network significantly reduces cost </li></ul><ul><li>Unified Ethernet architecture eases diagnosis and maintenance </li></ul><ul><li>Ethernet AVB audio profiles can substitute synchronous MOST </li></ul>Why Ethernet in Vehicles ?
  6. 6. Example: Ethernet Based High-End Infotainment Network Architecture <ul><li>Ethernet AVB for Infotainment </li></ul>Display USB/ IPOD Audio out NAND flash Display USB/ IPOD Audio out NAND flash Rear Seat Entertainment Switch Audio Amp Ethernet AVB MCU Comm/ Telematics MCU Digital Radio/TV MCU Ethernet AVB Nav Engine MCU Ethernet AVB Ethernet AVB Infotainment: MPU Switch GigE Media Server/ Disc Player Gateway: MCU ADAS: MPU Switch LVDS GigE MCU Ethernet AVB MCU Ethernet AVB MCU Ethernet AVB MCU Ethernet AVB MCU Ethernet AVB Cluster: MCU Head Unit Dashboard Panorama View Ethernet AVB Ethernet Ethernet Ethernet AVB Ethernet Ethernet Service & Control Service & Control SPI MCU Raw Video Service & Control Multi-Stream Audio/Video Dual-Stream Audio/Video Multi-Stream Audio/Control Car Network Peripheral Functions and Upgrade Options (Trunk) LVDS Raw Video Front-View Camera LVDS Raw Video Infotainment MPU
  7. 7. Example of silicon implementation Freescale MPC5668G – Dedicated Gateway MCU Build on Power Architecture
  8. 8. Functional Safety <ul><li>Provides and automotive specific risk based approach for determining risk classes (ASIL) </li></ul><ul><li>Specify the necessary safety requirements for achieving an acceptable residual risk </li></ul><ul><li>Provides confirmation to ensure a sufficient level of safety is being achieved </li></ul>Objective of the ISO26262 Standard
  9. 9. Functional Safety / ISO26262 <ul><li>Functional safety is a key paradigm of next generation electronic vehicle systems </li></ul><ul><li>Safety standards are becoming the key enabler for the design of all new electronic application in the vehicle and associated semiconductor development </li></ul>
  10. 10. Freescale: No. 1 in Automotive Semiconductors <ul><li>Freescale Leadership in Driving Standards </li></ul><ul><ul><li>First semiconductor supplier to join the AUTOSAR development partnership </li></ul></ul><ul><ul><li>Co-founded FlexRay TM Consortium with BMW, DaimlerChrysler and Philips </li></ul></ul><ul><ul><li>Founding member of Local Interconnect Network LIN Consortium </li></ul></ul><ul><ul><li>Founding member of the DSI protocol, and associated member of the PSI5 consortium (Airbag) </li></ul></ul><ul><ul><li>Member of the GENIVI Consortium (Infotainment) </li></ul></ul><ul><ul><li>Active member of JASPAR supporting Japanese automotive electronics standardization </li></ul></ul>