Research On CAN Network Characteristics Of Distributed Driving Electric Bus

New energy vehicles development rapidly in recent years,It’s an important way to solve the problem of atmospheric environment,oil depletion and other issues at the current stage.Based on national policy to encourage and market demand,especially in the field of passenger cars,new energy buses entered a period of rapid development.Distributed drive electric vehicle power system structure has a higher transmission efficiency,reducing unit energy consumption,is an important development direction of the future.For the distributed drive electric bus,because of its multiple motors and controllers,it’s has a highly real-time requirements of the communication,coupled with the electromagnetic environment is complex,it’s complex CAN network design is a very important part.This paper briefly introduces the composition of the control system,analyzes the control principle of the CAN network,and studies the hierarchical structure of the CAN bus.It analyzes the key factors which influencing the real-time performance of the CAN bus,and by establishing the model,to the CAN network bus delay calculation optimization measures made detailed analysis and research,improve the real-time performance of the CAN network communication.For the problem of EMC in CAN network design,research on the location of grounding parts,shielding line and grounding,interference source distribution and reasonable evasion,CAN line waveform analysis,which influence CAN communication.Through these optimization measures,the anti-jamming performance of each network node is improved,and the communication quality and system anti-jamming capability are improved.Through the CAN network design of Distributed driving EV Bus,the design of the CAN network To meet the requirements of the vehicle,and optimized with high real-time features and high anti-interference ability to improve the communication quality and system anti-jamming ability.