Design and test of the anti-skid system for self-propelled high-stem crop sprayers  

作　　者：Haojun Wen Xinyue Liu Zhetian Yi Zhongxiang Li 

机构地区：[1]School of Mechanical and Electrical Engineering,Shihezi University,Shihezi 832003,Xinjiang,China [2]Northwest Key Laboratory of Agricultural Equipment,Ministry of Agriculture and Rural Affairs,Shihezi 832003,Xinjiang,China

出　　处：《International Journal of Agricultural and Biological Engineering》2023年第6期20-27,共8页国际农业与生物工程学报（英文）

基　　金：supported by the National Key Research and Development Program of China (Grant No.2016YFD0200705);the Key Laboratory of Northwest Agricultural Equipment of the Ministry of Agriculture and Zhongnong Fengmao Plant Protection Machinery Co.,Ltd.

摘　　要：Aiming at the problem of skidding in the operation of a self-propelled high-stem crop sprayer due to uneven road surface and uneven distribution of soil cohesive force,This study proposed a four-wheel drive hydraulic anti-skid control system based on RTM valve.Through theoretical analysis of control components such as the RTM valve and steering cylinder,the control model of the anti-skid drive system of the spray machine is established,and the simulation test is carried out in Matlab/Simulink.The simulation results show that the slip rate of the anti-skid drive system based on the PID control strategy is controlled below 0.05,and the RTM valve keeps the driving pressure of the system basically stable.In order to verify the reliability of the simulation results,the designed drive anti-skid control system was carried out on a spray machine for the field test.The experimental results show that the slip rate of the drive anti-skid system decreases from 86.7%to 1.25%when the anti-skid function is turned on,indicating that the designed drive anti-skid system has good anti-skid performance.

关 键 词：self-propelled sprayer high-stem crops drive anti-skid PID control Matlab Simulink 

分 类 号：S275[农业科学—农业水土工程]