Simulation of dynamic and economic performance of pure electric vehicle based on two speed automatic transmission

摘要

In order to study the influence of transmission matching on the power and economy of pure electric vehicle, The establishment of EQ5038XXYL pure electric van car model and simulate its power and mileage by using AVL cruise platform. On the basis of the original vehicle power transmission system, the automatic transmission with two gears and final drive are added. As a result, the dynamic performance and driving range have been improved to varying degrees. Power acceleration time decreased by 4%, Maximum climb slope increased by 11.3%, Maximum speed increased by 10.5%; In terms of economy, the driving range increased by 7.3%.