Optimization of the Control Strategy for a 4-Wheel-Drive PHEV

摘要

In this paper, control strategy of a plug-in 4 wheel drive car is researched. According to torque request, SOC and velocity of the car, the steady work state is classified into 10 modes, which consists of 7 drive modes and 3 brake modes. The control strategy based on logic threshold realizes basic energy management of the car. Besides, the control strategy is optimized with the algorithm of NSGA-II, and fuel consumption and emissions are reduced without much decrease in the power performances.