Study and Realization on Power Energy Distribution Control for Auxiliary Power Unit

This paper is focus on power energy distribution control of auxiliary power unit (APU) for a range-extended electric vehicle (RE-EV). Based on the working characteristic of the engine and the generator, a coordination control strategy of RE-EV is proposed. A regulating rule of APU control system speed and torque which meets the power demand of the RE-EV is designed. The PID and fuzzy control methods of engine speed are discussed by simulation analysis. In order to investigate the APU control processing, the incremental PID and fuzzy control algorithms are used to achieve speed control in the APU test bench. The influence on tuning parameters, control period and the working condition are analyzed from test results. The coordination control strategies of engine and generator are realized and verified by experimental research.