Multi Objective Optimization Design of Pure Electric MPV Transmission System Based on Multi Island Genetic

For a two gear AMT pure electric MPV, on the basis of theoretical studies, the parameters of MPV are adjusted. The car is establish by AVL Cruise, and simulation is carried out. On the premise that the power performance and economy met the requirements, so as to mushroom the economy, a combined simulation model is established and MIGA (multi island genetic algorithm) is used to optimize the power performance and economy of the electric MPV to obtain the optimal vehicle layout. The optimization results show that under the NEDC (New European Driving Cycle) cycle condition, the 100 km power consumption is reduced by 0.52 kWh, and the economy is diminished by 3.4%; the 0~100 km/h acceleration time is reduced by 0.7 s, and the power performance is boosted by 5.8% compared with that before optimization.