Bus Guardian Design for automobile networking ecu nodes compliant with FlexRay standards

This paper presents a bus guardian design used in an in-car network compliant with FlexRay standards. FlexRay is a new standard for data/signal communication among electronic devices installed in a vehicle. An 8051-compatible microcontroller was used to implement the system controller. Most important of all is that the bus guardian (BG) in charge of security and safty is proposed and implemented. This work was implemented by hardware description language (HDL) and verified by Xilinx field-programmable gate array (FPGA).