为提高电动工程机械的动力性和经济性,加快工程机械电气化,降低非道路移动源的碳排放,提出了一种计及制造成本的电动工程机械动力总成优化设计方法。以纯电动轮式装载机为案例,首先采用模糊TOPSIS法进行考虑广义成本的动力总成优化部件选择,进而使用改进的多目标水母搜索算法,以特定客户需求工况运行成本、动力性能及狭义制造成本为目标,对选定的部件参数进行优化；最后,建立MATLAB/Simulink仿真模型对优化结果进行验证。结果表明,改进后的水母算法具有一定的优越性；在特定客户需求工况下电机工作效率提升了0.214%、0.190%、0.150%；最高车速加速时间分别减少1.798s、2.231s、1.006s；制造成本降低了3.129%、5.043%、3.946%；有效提高了电动工程机械的动力性和经济性。

In order to improving operation performance of electric construction machinery and accelerate the dev elopment of electrification of construction machinery and reduce carbon emissions from the Non-road mobile machinery. An optimization design method for powertrain of electric construction machinery considering manufacturing cost was proposed. firstly, the pure electric wheel loader was selected as the object, and the fuzzy TOPSIS was used to select the appropriate optimization components. Then the operating costs under customer demand conditions, the power performance considering loader turnaround conditions, and narrowly defined manufacturing costs were optimized with the help of an improved multi-objective jellyfish search algorithm. Finally, the result was analyzed and verified by platform based on MATLAB/Simulink. And showed that the improved algorithm is superior than others; The working efficiency of the motor increased by 0.214%, 0.190%, 0.150% in different condition; the acceleration time from 0 to maximum speed decreased by1.798s, 2.231s, 1.006s；Manufacturing cost decreased by 3.129%, 5.043%, 3.946%.the power performance and comfortability were improved.

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国家重点研发计划项目(2020YFE0201000)