首页|Reducing Operation Emissions and Improving Work Efficiency Using a Pure Electric Wheel Drive Tractor
Reducing Operation Emissions and Improving Work Efficiency Using a Pure Electric Wheel Drive Tractor
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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 stud-ied,including an electric motor drive system,a battery ballast system,and an electro-hydraulic suspen-sion 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 con-trol 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 trac-tor slip by 14.83％and increases the traction efficiency by 10.28％compared with the average torque-distribution 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.
Electric tractorPloughing unitTorque distributionActive ballastTraction performance
Research Center of Intelligent Equipment,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China
State Key Laboratory of Intelligent Agricultural Power Equipment,Beijing 100097,China
BYD Company Limited,Shenzhen 518118,China
College of Agricultural Engineering,Jiangsu University,Zhenjiang 212013,China
College of Engineering,China Agricultural University,Beijing 100083,China
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National Key Research and Development Plan of ChinaBeijing Postdoctoral Research FoundationNational Natural Science Foundation of ChinaNatural Science Foundation of Jiangsu Province
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