Abstract: Aiming at the problems of excessive greenhouse gas and particulate matter emission and low traction efficiency of traditional diesel tractor in farm operation, an electric tractor with distributed drive is proposed and its drive system is studied. Firstly, the structure of the distributed drive electric tractor (DDET) system is analyzed and designed. Secondly, the dynamic performance evaluation index of the DDET driving system is established and the parameter matching and selection of key components are completed. Finally, the simulation experiment of the tractor's power and economy is carried out in Cruise simulation software. The results show that the maximum traction can reach 10 661.3 N/m, the maximum climbing slope is 22.39°, the acceleration time is 3.8 s from 0 to 35 km/h, and the continuous working time is 3.7 h after charging. The distributed electric tractor parameters in this study are reasonably matched and meet the requirements of vehicle power performance, which can provide reference for related pure electric tractors.

Key words: electric tractor; distributed drive system; parameter matching; Cruise; tractor verification

摘要： 针对传统柴油拖拉机在农田作业中温室气体和颗粒物排放超标、牵引效率低等问题， 提出了一种采用分布式驱动的电动拖拉机，并对其驱动系统进行研究。首先分析设计分布式 电动拖拉机（DDET）驱动系统的结构，其次建立了 DDET 驱动系统动态性能评价指标并完 成了关键部件的参数匹配和选型，最后在 Cruise 仿真软件中针对拖拉机的动力性和经济性进 行仿真实验。结果表明，最大牵引力可达 10 661.3 N/m，最大爬坡度为 22.39°，0～35 km/h 加速时间为 3.8 s，充电后连续工作 3.7 h。研究的分布式电动拖拉机参数匹配合理，满足整车 动力性要求，可为相关纯电动拖拉机提供参考。

关键词: 电动拖拉机；分布式驱动系统；参数匹配；Cruise；拖拉机验证