Slip-draft embedded control system by adaptively adjusting the battery position for electric tractors

Authors

  • Minghui Wang College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
  • Pucai Ning SAIC Motor Technical Center, Shanghai 201804, China
  • Ke Su School of Arts and Design, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
  • Gejima Yoshinori Faculty of Agriculture. University of Miyazaki, Miyazaki 8892192, Japan
  • Wei Wang College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
  • Yongjie Cui 1. College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; 5. Key Laboratory of Agricultural Internet of Things, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China; 6. Shaanxi Key Laboratory of Agricultural Information Perception and Intelligent Service, Yangling 712100, Shaanxi, China
  • Gongpei Cui College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China

Keywords:

electric tractor, embedded control system, adjusting adaptively, center of gravity position, performance test

Abstract

A slip-draft embedded control system was designed and developed for an independent developed 2WD (two-wheel drive) electric tractor, to improve the traction efficiency, operation performance and ploughing depth stability of the electric tractor. In this system, the battery of electric tractor was innovatively equivalent to the original counterweight of the fuel tractor. And through dynamic analysis of electric tractor during ploughing, the mathematical model of adjusting the center of gravity about draft force and slip rate was established. Then the automatic adjustment of the center of gravity for electric tractor was realized through the adaptive adjustment of battery position. Finally, the system was carried on electric tractor for performance evaluation under different ploughing conditions, the traction efficiency, slip rate and front wheel load of electric tractor were measured and controlled synchronously to make it close to the set range. And the comparative experiments of ploughing operation were carried out under the two modes of adaptive adjustment of center of gravity and fixed center of gravity. The test results showed that, based on the developed control system, the center of gravity of electric tractor can be adjusted in real time according to the complex changes of working conditions. During ploughing operation with adjusting adaptively battery position, the average values of traction efficiency, slip rate, front wheel load and relative error of tillage depth of electric tractor were 64.5%, 22.2%, 2045.0 N and 2.0% respectively. Which were optimized by 15.0%, 29.5%, 19.6% and 80.0% respectively, compared with electric tractor with fixed battery position. The slip-draft embedded control system can not only realize the adaptive adjustment of the center of gravity position in the ploughing process of electric tractor, but also improve the traction efficiency and the stability of ploughing depth, which can provide reference for the actual production operation of electric tractor. Key words: electric tractor, embedded control system, adjusting adaptively, center of gravity position, performance test DOI: 10.25165/j.ijabe.20231605.7280 Citation: Wang M H, Ning P C, Su K, Yoshinori G, Wang W, Cui Y J, et al. Slip-draft embedded control system by adaptively adjusting the battery position for electric tractors. Int J Agric & Biol Eng, 2023; 16(5): 155-164.

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Published

2023-12-29

How to Cite

Wang, M., Ning, P., Su, K., Yoshinori, G., Wang, W., Cui, Y., & Cui, G. (2023). Slip-draft embedded control system by adaptively adjusting the battery position for electric tractors. International Journal of Agricultural and Biological Engineering, 16(5), 155–164. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/7280

Issue

Vol. 16 No. 5 (2023): IJABE

Section

Information Technology, Sensors and Control Systems

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