车载以太网测试挑战及解决方案_是德科技.pdf

1、1车载以太测试挑战及解决案Lei Gu,Optical Solution Engineer05/28/20252 Why use Automotive Ethernet Why use optical transmission in Automotive Ethernet Keysight solution for optical Automotive Ethernet Keysight solution for electrical Automotive Ethernet SummaryAgenda3Overview of Automotive Serial BusAbbr.Full Nam

2、eTimeData RateUsageCANController Aera Network19831MbpsPowertrain、ChassisLVDSLow Voltage Differential Signaling19941.25Gbps(P2P)Camera、VideoLINLocal Interconnect Network199819.2KbpsMirror、Electric seat、LightingMOSTMedia Oriented System Transport1998150MbpsCamera、VideoFlexRayFlexible and Redundant Net

3、work200010MbpsPowertrain、Active safety systemCAN FDCAN Flexible Data Rate20128MbpsPowertrain、Body control、ADASAEAutomotive Ethernet201510M50GbpsADAS、Infotainment、BackboneUTP/STPOM34Automotive Ethernet is the futureWeight1.Body structural components2.Powertrain system3.Wiring harnessCostBandwidth1.Ma

4、terial costs2.Tax and fee costs3.Wiring harness costs1.Camera data2.LIDAR data3.V2X communicationCANLVDSLINMOSTFlexRayCAN FDTraditional Serials Bus5Autonomous driving requires faster data collection and processing1.LIDAR(1)100Mbps2.Camera(45)1000Mbps3.RADAR(45)100Kbps4.Electronic Navigation 50Kbps5.

5、V2V,V2N,V2P,V2I,V2U,V2X xxMbpsL2 Autonomous DrivingAdditional Data1.Rear seat movies/games2.Video conference6What is Automotive Ethernet?Ethernet-based network for in-vehicle electrical systems specifically tailored to meet the needs of automotive industry Point-to-point topology where units are con

6、nected over a full duplex(bi-directional)single twisted wire(T1=single twisted wire)Enables faster data communication with reduced connectivity costs and cabling weightStandardsData RatesModulationScope BWIEEE SpecsReleased inKey applications10Base-T1S10 MbpsNRZ500 MHz802.3cgFeb 2020Body electronics