Issue link: https://te.mouser.com/i/1349110
TE Connectivity White Paper /// V2X - An important building block in Cooperative Intelligent Transport Systems (C-ITS) Page 10 V2X – An important building block in Cooperative Intelligent Transport Systems (C-ITS) The structure of a V2X antenna ve- hicle architecture with compensator is shown in figure 19. 4.5. V2X control units with vehicle network connection For fully integrated V2X communi- cation customer solutions TE has de- veloped a V2X control unit in plat- form design. The platform interacts seamlessly with the TE antenna and compensator portfolio. The V2X platform in figure 20 fea- tures a multicore system-on-chip (SoC) for the V2X stack, an applica- tion programming interface (API), a V2X one-chip solution (transceiver and baseband), and a hardware se- curity module (HSM) for secure V2X communication. The system uses a voltage supply of up to 24 V. Com- munication with other vehicle con- trol units is performed via automo- tive Ethernet (100Base-T1), classic high speed CAN or CAN FD. Due to the V2X control unit's high processing power requirements, a multicore architecture (ARM cortex) SoC with integrated automotive core (Cortex M3) was selected. The application cores (Dual Cortex A7) are used for the software-based host services (V2X stack, API, etc.) to enable V2X functions and auto- motive Ethernet communication, whilst the automotive core is used for secure communication with the other ECUs in the CAN vehicle net- work. The application cores can verify up to 1.000 incoming V2X messages per second and transfer 10 signed messages in the same timeframe. Application data is transferred via automotive Ethernet (100Base-T1) to other control units for further processing and visualization. In ad- dition, the application cores also manage the firmware (FW) upload process for the V2X one-chip. The FW is stored in a separate external flash. The V2X control unit's software con- sists of several component (see fig- ure 21), the most essential being the two operating systems (OS) used: QNX and Autosar. QNX is the operating system of the ap- plication cores hosting the V2X stack and those V2X applications that sup- port both standards, ETSI ITS G5 and 802.11p (WAVE) for the European and the U.S. markets. SomeIP is used as communication protocol for the auto- motive Ethernet (100BaseT1) interface. Fig. 17: Winglet simulation on a truck; (a) 3D far field; (b) truck model; (c) electrical near field at the truck Fig. 18: (a) left: Antenna concept for V2X antennas on motorcycles; (b) right: Radia- tion pattern of the antenna Fig. 19: V2X compensator to bridge long distance between antenna and ECU