Vehicle Network Technology Research And Development

Along with automobile industry's development, the modern automobilism massive electronic control, many upscale automobiles have used several even several dozens electrically controlled units, but each electrically controlled unit connection many sensors and the actuator, each control unit needs to carry on the exchange of information, if each information carries on the transmission through respectively the independent data line, like this will cause the electrically controlled unit needle foot to increase, the electrically controlled system's group of lines and peg grafting will also increase, finally will cause the failure rate to increase. In order to simplify the line, enhances between each electrically controlled unit the communication speed, cuts the breakdown frequency, the vehicle carries the network transmission system to arise at the historic moment. The modern automobile used the vehicle to carry the network system generally to have CAN, LIN, MOST, FlexRey, VAN, Byteflight and so on, the network transport protocols already became the modern automobile network transmission the key technologies. The vehicle carried the networking is between automobile interior each electrically controlled unit carries on the information interactive bridge, the vehicle carries the network system to solve group of lines questions and so on arrangement difficulty which, service diagnosis difficulty the automobile group of lines and peg grafting increases brings, the characteristic which the modern automobile services transformed the repair way which from the traditional machinery repair unifies for the modern electronic technology diagnosis and the machinery repair. The automobile network teaching must transform in the quality colleges and universities teaching from the traditional machinery repair into the modern electronic technology diagnosis, the teaching network platform arises at the historic moment. Simultaneously the signal carries in the network system by the vehicle data bus's form to carry on the transmission, may carry on the information sharing, the optimized system's control function, enhances the automobile networking in the actual utilization the integrated control accuracy.The vehicle carries the network system to present the breakdown to be possible to cause the automobile electrically controlled unit not to be able to correspond mutually, thus initiation breakdown. This article discussed the vehicle to carry information system's several key technologies thoroughly (vehicle to carry information system networking, vehicle carries wireless communication technology, automobile embedded technology) and the typical automobile (Audi, uses in common Buick, populace and so on) the network breakdown diagnosis method. Proved the vehicle to carry the networking and the diagnosis method carries information system's importance to the vehicle, has discussed the technical trend of development. Carries information system's network architecture and the wireless communication design proposal for the vehicle provides the related basis, and provides the complete data management and the data processing function to the daily vocational education teaching.This article also discussed the vehicle to carry the background which and the networking development direction the information system produced, proved the incoming vehicle from the development angle not to carry the information system construction the significance, will carry information system's function demand to the future society to the vehicle to carry on the analysis, and take these function demand as the foundation, proposed the incoming vehicle has not carried the information system organization plan design. Through based on main line's vehicle control system's research, has realized the real-time control vehicles, each control module carries on the request which through the main line corresponds mutually, To achieve automotive Intelligent Communications Network purpose of professional teaching experience.