Architecture Optimization and Performance Validation for Power-split Hybrid System

Abstract:

An architecture optimization method was proposed for a compound power-split hybrid system. Kinematic, dynamic, and efficiency analyses were conducted for the optimized system. Then its various operation modes were introduced. A cosimulation platform was developed using Matlab/Simulink and LMS AMESim. Simulation results show that, fuel economy and power performance of the system are both improved. Energy consumption of an urban driving cycle(UDC) in pure electric modes decreases by 8%. Fuel consumption of new European driving cycle (NEDC) in hybrid modes decreases by 6%. Maximum vehicle speed in pure electric modes increases from 110 km?h-1 to 160 km?h-1. Acceleration time of 0~100 km?h-1 in hybrid modes is shortened from 14.5 s to 10.0 s.