Design and Analysis of CAN Communication Network Applied in Hybrid Electric Vehicle

This paper briefly presents a Parallel Serial Hybrid Electric Vehicle structure combined with NAC institute, constructing a CAN Communication Network of Hybrid Electric Vehicle’s Powertrain and also defining the Communication protocol of the control Network. The Network constructed is tested on bench and prototype vehicle and by using CANstress, CANoe and some other Automotive network development tools, actual test and performance analysis have been conducted. The experiment result illustrates that the control network system arrives a high stable performance and real-time with low bus load and little error frames under high transmission speed and interference environment, and can meet requirement of HEV Powertrain of stability, real-time and accurate control. Besides that, we also constructs a Diagnostic Network, which fulfills the unified diagnostic services (UDS) defined by ISO14229.