Motor Torque Distribution Strategy for Different Tillage Modes of Agricultural Electric Tractors

Yao Yu, Shuaihua Hao, Songbao Guo, Zhong Tang () and Shuren Chen
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Yao Yu: Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China
Shuaihua Hao: Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China
Songbao Guo: Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China
Zhong Tang: Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China
Shuren Chen: Key Laboratory of Modern Agricultural Equipment and Technology of Ministry of Education, Jiangsu University, Zhengjiang 212013, China

Agriculture, 2022, vol. 12, issue 9, 1-22

Abstract: Aiming at the existing single-motor agricultural tractors, which often have a mismatch between power and working conditions and a poor operation effect under different tillage modes, this paper designs a torque allocation strategy for agricultural electric tractors under different tillage modes. Firstly, the torque is divided into basic and compensating, and a calculation model is established. Then, the Particle Swarm Optimization algorithm is used to find the optimal demand torque position, and fuzzy control rules allocate the motor torque in combination with the battery SOC. Finally, the strategy’s effectiveness in different tillage modes is verified by MATLAB/Simulink simulation and bench test. The test results show that the strategy can distribute the motor torque stably according to the load torque change and pedal opening under three PTO transitions and the plowing and rotary tillage modes. The main and speed control motors respond in about 3 s with good real-time performance. The drive wheel torque can reach 1600 N·m during plowing and rotating operation. The PTO torque can reach 60 N·m during the rotating process. The maximum torque of the output shaft can reach 150 N·m with good plowing performance. During all operations, the SOC of the battery shows a steady linear decrease, and the battery discharge has stability.

Keywords: electric tractor; distributed torque; fuzzy control; tillage mode; battery SOC (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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