Reducing Operation Emissions and Improving Work Efficiency Using a Pure Electric Wheel Drive Tractor  

作　　者：Chang-Kai Wen Wen Ren Qing-Zhen Zhu Chun-Jiang Zhao Zhen-Hao Luo Sheng-Li Zhang Bin Xie Zhi-Jun Meng 

机构地区：[1]Research Center of Intelligent Equipment,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China [2]State Key Laboratory of Intelligent Agricultural Power Equipment,Beijing 100097,China [3]BYD Company Limited,Shenzhen 518118,China [4]College of Agricultural Engineering,Jiangsu University,Zhenjiang 212013,China [5]College of Engineering,China Agricultural University,Beijing 100083,China

出　　处：《Engineering》2024年第6期230-245,共16页工程（英文）

基　　金：supported by the National Key Research and Development Plan of China(2022YFD2001201);the Beijing Postdoctoral Research Foundation(2023-ZZ-112);the National Natural Science Foundation of China(52272444);the Natural Science Foundation of Jiangsu Province(BK20230548).

摘　　要：In response to the problems of excessive greenhouse-gas and particulate emissions and the low traction efficiency of conventional diesel tractors in the field,a purely electric wheel-side drive tractor was studied,including an electric motor drive system,a battery ballast system,and an electro–hydraulic suspension system.This paper develops a dynamics model of an electric tractor-ploughing unit under complex soil conditions,leading to the proposal of an active control method for drive wheel torque and a joint control method for the traction force of the suspension system and the front-and rear-axle loads of a tractor.Finally,the tractor is prototyped and assembled,and ploughing tests are carried out.The ploughing results show that the active torque-distribution control method proposed in this study reduces the tractor slip by 14.83%and increases the traction efficiency by 10.28%compared with the average torquedistribution mode.Compared with the conventional traction control mode,the joint control method for traction and ballast proposed in this paper results in a 3.7%increase in traction efficiency,a 15.05%decrease in slip,and a 4.9%reduction in total drive motor energy consumption.This study will help to improve the operation quality and traction efficiency of electric tractors in complex soil conditions.

关 键 词：Electric tractor Ploughing unit Torque distribution Active ballast Traction performance 

分 类 号：S219[农业科学—农业机械化工程]