Abstract
ABSTRACTThe problem of insufficient driving performance in existing electric vehicle (EV) powertrain systems is solved in this paper by presenting the EV as the reference object. The system model of the EV is established based on the powertrain system layout, technical parameters, and performance requirements, and the vehicle dynamic property and pure electric drive economy are evaluated. On the basis of the component models and total outputted power, the driving range is considered as the optimization target, and the input simulation parameters are considered as the optimized variables. Therefore, the optimal variable parameters are determined by multiple simulation analysis. In view of the test bench results, the rationality of the parameters of the simulation result is verified. Generally speaking, with the flexible configuration of the designed powertrain system and the optimized parameters of dynamic programming, the automobile performance can be improved.
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