摘要
以JS―754拖拉机为实验平台设计了一种线控液压转向系统,提出了PID控制方法,用油缸位移目标值和实际值的偏差作为控制器输入,通过计算得到相应的电磁比例换向阀的控制电流,保证转向机构工作安全、准确可靠、转向操纵轻便灵活,减轻驾驶员的劳动强度,提高转向的可靠性、随动性和转向精度。台架实验结果表明:本文设计的线控液压转向控制器可以很好的实现系统转向功能,提高了控制精度和快速响应特性。
This article designed a hydraulic steering by-wire system, which is based on JS-754 tractor as the experimental platform. The PID control method was proposed, and cylinder displacement＇ s target value and the actual value＇ s deviation were made as controller＇ s input. By calculating, the corresponding control current of the electromagnetic proportional valve was obtained. The new steering system can guarantee the security and reliability of the tractor, and reduce the driver＇ s labor; also the steering and following characteristics of the system and the operating efficiency of the tractor were improved. The bench test results showed that： the hydraulic steering by-wire controller can realize system＇ s steering function well, and the system improved the control accuracy and fast response characteristics.
出处
《中国农机化学报》
北大核心
2013年第6期188-192,201,共6页
Journal of Chinese Agricultural Mechanization
基金
江苏省科技成果转化专项资金项目(BA2010055)--全架式大功率轮式拖拉机研发及产业化
江苏省科技支撑计划(农业)资助项目(BE2012384)--拖拉机自动耕深控制装置的研究与开发
