Abstract
Fuel cell trams have many advantages, such as high efficiency, no pollution, low noise and simple structure. It is recognized as the mainstream of the future electric bus. In order to solve the communication between the components of the fuel cell tram, the topology of the vehicle communication network is designed based on the CANopen bus, and its hardware requirements are put forward. The communication speed and communication mechanism of CANopen bus are established, and the CANopen message structure and protocol are introduced. Finally, the communication nodes were developed based on LPC2194 microcontrollers and TJA1050 high speed CANopen bus drivers. The practical application shows that the system is stable and reliable.
