Research on the Control Strategy of the Power Shift System of a Cotton Picker Based on a Fuzzy Algorithm

Xiangchao Meng, Xiangdong Ni (), Huajun Chen, Wenlong Pan, Yongqiang Zhao, Baoyu Zhai and Wenqing Cai ()
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Xiangchao Meng: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Xiangdong Ni: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Huajun Chen: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Wenlong Pan: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Yongqiang Zhao: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Baoyu Zhai: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Wenqing Cai: College of Information Science and Technology, Shihezi University, Shihezi 832003, China

Agriculture, 2024, vol. 14, issue 6, 1-19

Abstract: The control strategy of a power shift system has a significant impact on the driving stability and comfort of cotton pickers. To prevent the cotton picker from stopping to shift and reduce the jerks while shifting, in this study, the power shift system of a four-speed cotton picker was taken as the research object, and the working principles of the power shift transmission of the cotton picker and the hydrostatic transmission were analyzed. Firstly, the intelligent fuzzy control strategy of the variable pump and dual variable motor displacement of the cotton picker power shift system was designed using a fuzzy algorithm, and two-input and three-output fuzzy controllers were constructed with the engine rotational speed and vehicle speed as the input parameters, and the variable pump displacement, front motor displacement, and rear motor displacement as the outputs. Secondly, the model of the whole vehicle travel drive system of the cotton picker was constructed using co-simulation of Amesim and Simulink. Finally, the influence of the fuzzy shift control strategy and conventional manual shift method on the speed and driving distance of the cotton picker was compared and analyzed. The analysis results show that the fuzzy algorithm-based control strategy of the power shift system of the cotton picker can ensure that the cotton picker travels stably according to the target speed, and effectively reduces the speed fluctuation and jerks while shifting. The results of the study are of great significance to realize the non-stop shifting of the cotton picker as well as improve the stability and smoothness of the shift while driving.

Keywords: cotton picker; transmission; hydrostatic transmission; fuzzy theory; shift strategy (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: 2024
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