. Vehicle Communication Zones Powertrain: Engine transmission Powertrain: Engine, transmission Chassis: Steering, ABS, Tire pressure Body: Doors, Lamps, Seats, A/C Safety: Air-bags, Sensors, Actuators, Occupant Safety System I f t i t & D i A i t N i ti T l ti TV/R di /CD/DVD RSE C Infotainment & Driver Assist: Navigation, Telematics, TV/Radio/CD/DVD, RSE, Cameras Trends in in-vehicle communication needs Infotainment and Driver Assist drives higher bandwidth (graphic panels, cameras, WLAN, BT) C f Communication convergence: More buses are connected through use of gateways Information sourced in one zone and used in many zones (e.g. camera, sensor data) Vehicular Diagnostics interface is standardized to be over Ethernet and IP Th i d f d i hi l b kb t k IEEE 802.1 AVB Task Force Meeting March 2011 There is a need for a converged in-vehicle backbone network Converged backbone networks for critical control and multimedia An example converged backbone network for the domain architecture Powertrain Chassis ECU CAN-C ECU ECUECU ECU ECU FlexRay ECU ECU ECU CAN-C ECU ECU ECU FlexRay Gateway Gateway ES BES ES EthernetES BES ESEthernet Gateway (BES) Gateway Gateway (BES) Gateway Converged backbone network ES BES ES ES BES ES t e etES BES ESEthernet Drivers Assist Ethernet ES BES ES ECU ECU ECU ECU ECU ECU CAN-B Gateway (BES) Gateway (BES) Ethernet InfortainmentBody ECU ECU CAN-B ES BES ES ES BES ESCAN-B Ethernet IEEE 802.1 AVB Task Force Meeting March 2011 : Possible AVB application (bold line) Diagnostic Tool BES: Bridged end station, ES: End stationECU: Electronic control unit Requirements for converged backbone networks 1.