I. Introduction
At present, the development of electric vehicle networking is highly valued by all countries [1] . The interconnection between electric vehicles has become the main direction of future automobile development [2] . There are many electrical components in electric vehicles. A large amount of data must be transmitted and transmitted in real time. How to improve the real-time communication, reliability and emergency response of electric vehicles has become a problem in the research of electric vehicle communication [3] . DSP TMS320F28335 is the central processor of vehicle electronic communication system. We use good DSP fast processing ability to improve data processing speed. In order to improve real-time communication, the CAN module integrated in DSP is used for control, so as to reduce the complexity of hardware circuit and improve communication reliability [4] . This module can improve the emergency response capability of electric vehicles.