Study on adjustment method of force-position comprehensive coefficient

doi:10.13733/j.jcam.issn.2095-5553.2024.06.007

Abstract

Abstract:

Aiming at the problem of the value of comprehensive coefficient in comprehensive adjustment of force position, an automatic adjustment scheme of comprehensive coefficient was proposed. The relationship between comprehensive coefficient and tillage depth under different tillage conditions was studied by Matlab/simulink. According to the results, the regulation method with tillage resistance as switch was established. Based on the formula of traction resistance, a random signal module was designed to simulate the fluctuation of tillage resistance. In order to verify the control effect of the designed comprehensive coefficient adjustment method, the tillage depth control strategy with the comprehensive coefficient of 0.5 was used for simulation comparison. The results show that the scheme can adjust the comprehensive coefficient in time with the change of tillage resistance, and has good environmental adaptability. The maximum overshoot is reduced by 75.56% compared with the other scheme. The stability of engine load is also taken into account while the ploughing depth is in a reasonable range.

Key words: comprehensive adjustment of force and position, comprehensive coefficient, tillage resistance, tractive resistance, even tillage depth, automatic control

摘要：

针对力位综合调节中综合系数的取值问题，提出一种综合系数自动调节方案。通过Matlab/simulink研究不同耕作条件下综合系数与耕深的关系，依据结果建立以耕作阻力为开关的调节方法；并基于牵引阻力的计算公式设计模拟耕作阻力波动的随机信号模块。为验证所设计综合系数调节方法的控制效果，采用综合系数取值0.5的耕深控制策略与其进行仿真对比。结果表明：该方案能够随着耕作阻力的改变及时地对综合系数进行调整，具有较好的环境适应性，最大超调量相较于另一调节方案同比降低75.56%；保证耕深在合理范围的同时兼顾发动机负荷稳定性。

关键词: 力位综合调节, 综合系数, 耕作阻力, 牵引阻力, 耕深均匀, 自动控制

CLC Number:

S219.032.4

Fu Xiao, Xu Ruiliang, Yan Xianghai, Xu Liyou. Study on adjustment method of force-position comprehensive coefficient[J]. Journal of Chinese Agricultural Mechanization, 2024, 45(6): 37-41.

付晓, 徐锐良, 闫祥海, 徐立友. 力位综合系数调节方法研究[J]. 中国农机化学报, 2024, 45(6): 37-41.

References

［1］　Shafaei S. M, Loghavi M, Kamgar S. A practical effort to equip tractor-implement with fuzzy depth and draft control system ［J］. Engineering in Agriculture, Environment and Food, 2019, 12(2): 191-203.

［2］　Timene A, Ngasop N, Djalo H. Tractor-implement tillage depth control using adaptive neuro-fuzzy inference system (ANFIS)［J］. Proceedings of Engineering and Technology Innovation, 2021(19): 53-61.

［3］　Zhang W, Liu M, Xu L, et al. Simulation of hydraulic suspension system of electric tractor based on Matlab-AMESim ［C］. Journal of Physics: Conference Series. IOP Publishing, 2021, 1903(1): 012003.

［4］　王素玉, 刘站, 李瑞川, 等. 基于土壤比阻的大功率拖拉机变权重力位综合控制研究［J］. 农业机械学报, 2018, 49(2): 351-357.

Wang Suyu, Liu Zhan, Li Ruichuan, et al. Variable weight force position mixed control of high-power tractor based on soil specific resistance ［J］. Transactions of the Chinese Society for Agricultural Machinery, 2018, 49(2): 351-357.

［5］　鲁植雄, 郭兵, 高强. 拖拉机耕深模糊自动控制方法与试验研究［J］. 农业工程学报, 2013, 29(23): 23-29.

Lu Zhixiong, Guo Bing, Gao Qiang. Study on auto control method and experiment for tractor depth based on fuzzy control ［J］. Transactions of the Chinese Society of Agricultural Engineering, 2013, 29(23): 23-29.

［6］　江玲玲, 张俊俊. 基于AMESim与Matlab/Simulink联合仿真技术的接口与应用研究［J］. 机床与液压, 2008(1): 148-149.

Jiang Lingling, Zhang Junjun. Interface and application research united simulation technique based on AMESim and Matlab/Simulink ［J］. Machine Tool & Hydraulics, 2008, 36(1): 148-149.

［7］　Soylu S, arman K. Fuzzy logic based automatic slip control system for agricultural tractors ［J］. Journal of Terramechanics, 2021, 95: 25-32.

［8］　江翠翠, 王佐勋. 模糊-PID控制在气密性检测压力控制系统中的应用［J］. 齐鲁工业大学学报, 2021, 35(3): 52-58.

Jiang Cuicui, Wang Zuoxun. Application of fuzzy-PID control in air tightness detection pressure control system ［J］. Journal of Qilu University of Technology, 2021, 35(3): 52-58.

［9］　贾玉文, 段晓, 张厚明, 等. 研究堆Mamdani型模糊控制器设计优化方法［J］. 原子能科学技术, 2021, 55(6): 1091-1097.

Jia Yuwen, Duan Xiao, Zhang Houming, et al. Design optimization method of Mamdani type fuzzy controller applied to research reactor ［J］. Atomic Energy Science and Technology, 2021, 55(6): 1091-1097.

［10］　商高高, 谢凌云, 季顺静. 拖拉机悬挂系统耕深自动控制策略的研究［J］. 中国农机化学报, 2016, 37(7): 136-140.

Shang Gaogao, Xie Lingyun, Ji Shunjing. Research on plowing depth automatic control for tractor hitch system ［J］. Journal of Chinese Agricultural Mechanization, 2016, 37(7): 136-140.

［11］　王述彦, 师宇, 冯忠绪. 基于模糊PID控制器的控制方法研究［J］. 机械科学与技术, 2011, 30(1): 166-172.

Wang Shuyan, Shi Yu, Feng Zhongxu. A method for controlling a loading system based on a fuzzy PID controller ［J］. Mechanical Science and Technology for Aerospace Engineering, 2011, 30(1): 166-172．

［12］　谭彧. 拖拉机液压悬挂和加载系统性能研究［D］. 北京: 中国农业大学, 2004.

Tan Yu. The study of characteristics for hydraulichitch & loading system in tractor ［D］. Beijing: China Agricultural University, 2004.

［13］　刘站. 基于土壤比阻的大功率拖拉机电液悬挂控制系统设计与分析［D］. 青岛: 山东科技大学, 2018.

Liu Zhan. Design and analysis of electrohydraulic suspension control system for high power tractor based on soil specific resistivity ［D］. Qingdao: Shandong University of Science and Technology, 2018.

［14］　翟力欣. 犁体结构与工作参数对流变型土壤耕作阻力的影响研究［D］. 南京: 南京农业大学, 2011.

Zhai Lixin. Study on the effects of plough's working and structure parameters on its resistance under rheological soil conditions ［D］. Nanjing: Nanjing Agricultural University, 2011.

［15］　吕杰. 农用拖拉机后悬挂液压系统的控制研究［D］. 秦皇岛: 燕山大学, 2016.

Lü Jie. Analysis of agricultural tractors rear hitch hydraulic control system ［D］.Qinhuangdao: Yanshan University, 2016.

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