Design Of CAN Communication And Monitor System For Motor Controller Base On DSP

CAN-BUS is recognized to be one of the most developmental Fieldbus in the world. In the future, it will be the leader of Fieldbus used in the Local Area Nework. Increasingly environment and energy problems urge Electric Vehicle (EV) undergo a development apex. Because battery and other energy device can not absolutely take place internal-combustion engine, Hybrid Electric Vehicle (HEV) is a good compromising solution to fuel economic and exhaust of the vehicle.With the research of CAN-BUS used in HEV in this paper, I had some design for the motor controller which had no CAN signal at first, in order to make it possible to communicate with the CAN-BUS used in the HEV.Based in the input and output signals of the motor controlled, I designed a hareware equipment with the use of DSP. I used the TMS320LF2407A chip together with its module circuit to process the motor controller's signals, and transmitter it to the CAN-BUS with the CAN device. The final product is a PCB. Used C and assemble language under DSP compiled environment, the CAN signal for the motor controller are carried out successfully. Refer to the SAE-J1939 and the agreement of HEV, the corresponding agreement for the motor controller had also been designed.This system communicated with PC through serial interface RS 232 and CAN-BUS, designed control interface of the controller using the tool of FameView and LabView. With these control interface, we could check and monitor the running course of motor. The informations we need to know about the motor also could be showed with these interface.Afer some communicational tests together with the Muti-Sources management system, this system was proved to operate well, and its stabilization and anti-jamming all made a good performance. This work is useful for the research and the population of CAN-BUS used in HEV.