The Car Body More Bus Network System Research

With the development of the automobile, the automobile network node and agrowing number of technologies constantly improving, single bus network is unable tomeet the requirements of modern car. In today's world many automobile manufacturersuse more bus network structure, so the more bus network researching has very importantsignificance. At the beginning of the new automobile models of development?developersfrom the perspective of research and development costs, not realizing real vehiclenetwork physical nodes, only by car bus network simulation, observe all the nodes of thefeasibility of the design. So the car computer network simulation is essential.This topic finished automotive multibus protocol design, the simulation model ofmultibus building, motor of the CANoe and MATLAB joint modeling and simulationtest.According to the mainstream car system contains the function and some reference todesign the function of auto multi-protocol control module. Including automobile powersystem module (FlexRay network) and car body module (CAN-LIN network), and hascarried on the detailed functional description, at the same time, several kinds of car busnetwork structure were analyzed.German Vector Company has developed a CANoe software on-board networkintegrated development environment. Its database editing tools are Fibex Explorer,CANdb++Editor, LDF Explorer, etc. Through database editing tools for modeling in thenetwork nodes, CANoe used to own CAPL language programming, define the behaviorof the network nodes, and configure the environment variables, set up a virtual networknode and form the simulation model of the whole.Finally, this paper designed the motor model based on CANoe with MATLAB, andsimulation. Through analyzing their respective advantages of the CANoe and MATLAB,the researchers were able to make the simulation model is more close to the real physicalmodel, and make the simulation model more optimize and earlier found the simulationmodel of the shortcomings, thus saving automobile research and development costs.Create auto control panel, through the car control panel message value changes, andthe simulation run. The results show that the simulation model to realize the automultibus protocol model.Car bus network simulation can help developers try to shorten the time and costsavings, at the same time, laid a solid foundation for the realization of the real physicalnodes.