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Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

International Journal of Agricultural and Biological Engineering 2023年第4期16卷 116-125页

作者： Maohua Xiao Ye Ma Chen Wang Junyun Chen Yejun Zhu Petr Bartos Guosheng Geng College of Engineering Nanjing Agricultural UniversityNanjing 210031China Faculty of Agriculture University of South BohemiaStudentska 1668Czech

The research on the self-propelled electric tiller is vital for further improving the quality and efficiency of greenhouse rotary tillage operation,reducing the work intensity and operation risk of operators,and achieving environmentally friendly *** of the existing self-propelled tillers rely on manual adjustment of the tillage ***,the consistency and stability of the tillage depth are difficult to *** this study,the automatic control method of tillage depth of a self-propelled electric tiller is investigated.A method of applying the fuzzy PID(Proportional Integral Derivative)control method to the tillage depth adjustment system of a tiller is also proposed to realize automatic *** system uses the real-time detection of the resistance sensor and angle *** controller runs the electronically controlled hydraulic system to adjust the force and position *** fuzzy control algorithm is used in the operation error control to realize the double-parameter control of the tillage *** simulation and experimental verification of the system are *** show that the control system applying fuzzy PID can improve the soil breaking rate by 3%in the operation process based on reducing the stability variation of tillage depth by 24%.The control strategy can reach the set value of tillage depth quickly and *** can also meet the requirement of tillage depth consistency during the operation.

关键词： Fuzzy PID self-propelled electric tiller Tillage depth Electro-controlled hydraulic system Comprehensive adjustment of force and position

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