Research On Application Of CAN Communication Control Technology In Vehicle Charging Pile

Since the 21st century,with the rapid economic development and scientific and technological progress,,the problem of environmental protection has gradually become one of the most important issues in the world.The problem of the exhaustion of oil resources and the pollution of exhaust emissions makes the automobile industry face a special stage of development,with the policy of promoting energy conservation and emission reduction by the governments of all countries.As a clean and environmentally friendly product that can achieve "zero emission",the electric vehicle has become an important direction for the development of the automobile industry.As one of the important conditions to promote the industrialization of the electric vehicle,the research and construction of the charging auxiliary facilities is indispensable,and the charging pile is convenient and fast and occupies an area of land.Small features become one of the most widely used charging facilities.In recent years,the electric vehicle industry has developed rapidly.With the increase of the demand for the construction of the charging pile,many problems have gradually emerged.This subject is designed to design an electric vehicle charging pile letter based on the CAN bus technology for the problem that the electric vehicle charging pile is not stable enough for the information and communication mode.The control system of interest communication has studied and designed the CAN bus protocol of communication key technology.Based on the distributed idea,based on the STM32F106 series chip as the main control module and the CAN bus as the information transmission module,the charging pile information transmission control system is designed.The paper first analyzes the function demand of the charging pile itself,analyses and introduces the communication module in detail,and controls the main control module and the CAN communication control.The software and hardware of the module are designed,then the communication message is designed in detail,and the basic framework and structure of CAN communication process are constructed.Finally,the information transmission of CAN communication process is realized through simulation experiment and debugging operation of software.The design of this project provides a stable and reliable communication protocol for the charging pile communication network.It avoids the problem that the charging pile can notwork normally and the large area coverage is caused by the instability of the information transmission and the limited transmission distance.At the same time,the simulation of theinformation transmission of the CAN bus protocol is completed,and it is also the general CAN.The practical application of line technology provides a good example.