Fuzzy logic based control strategy for parallel hybrid electric vehicle

Abstract

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In the parallel hybrid electric vehicle (PHEV) the load torque and speed control are the key point for efficient driving vehicle. A dynamic model of PHEV derived by an induction motor (IM) and an internal combustion engine (ICE) is made using Simulink package in Matlab. A comparison between a conventional PID controller and a fuzzy logic control (FLC) method. Also, analysis of IM with FL at variable load torque and speed is given. Simulation results show that the proposed FLC of speed provides high-performance dynamic characteristics and is robust with regard to motor parameter variations and load change. Finally a model of PHEV powered with IM and ICE is shown to be valid for different road cycles.