Several key problems to DSP on application of electric vehicle

For further studying Digital Singnal Processor(DSP)on application of electric vehicle,a design for the control system of wheel-driven electric vehicle based on the TMS320 DSP2407A chip is proposed.This paper includes the phase current detection method on full-bridge modulation,rotor position detection method and wheel-driven communication system design.The control system is a simple and feasible model of one CPU to control two motors.The phase current detection is new technology of one current sensor to detect three phase current.The rotor position detection gains exact rotor position through DSP dealing with position signal directly and software optimizing.The communication system achieves data real-time message by CAN and RS232 bus.The experiment result proves that the EV has excellent whole working performance through designing key working subsystem in reason and connecting with inline tightly on whole system basis.