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线控转向系统将电液比例、计算机、自动控制等高新技术充分结合,取消装载机原有转向系统中方向盘与转向轮之间机械(或液压)的联系,使装载机转向系统的转向灵敏度可以根据工况进行调节,为驾驶员提供合适的路感,解决了装载机作业效率与高速行走稳定性之间的矛盾,从而提高作业效率,减轻操作人员的劳动强度,简化装配过程,同时使装载机的遥控驾驶成为可能。介绍了铰接式装载机线控转向系统的基本原理与结构特点,提出了铰接式装载机线控转向系统总体设计方案。从提高系统可靠性出发,给出容错策略和转向控制算法。以国内主流5t装载机为例,对此系统进行了技术经济性分析,安装此系统增加成本占整车成本的百分之五左右,但车辆的安全性、操控性和作业效率均有一定程度的提高,具有较高的技术经济性。
The steer-by-wire system fully combines the electro-hydraulic ratio, computer, automatic control and other high-tech, cancels the mechanical (or hydraulic) connection between the steering wheel and steering wheel in the original steering system of the loader so that the steering sensitivity of the steering system of the loader can be Adjust according to working conditions to provide the driver with a proper sense of road to solve the contradiction between loader operating efficiency and high-speed running stability, thereby improving work efficiency, reducing operator’s labor intensity, simplifying the assembly process, Machine remote driving possible. The basic principle and structural characteristics of the steer loader steer-by-wire steering system are introduced. The overall design scheme of steer loader steer-by-wire steering system is proposed. In order to improve system reliability, fault tolerance strategy and steering control algorithm are given. Taking the mainstream 5t loader in China as an example, this system has been technically and economically analyzed. The cost of installing this system is about 5% of the total vehicle cost. However, the safety, handling and operating efficiency of the vehicle are both at a certain level Improve, with higher technical economy.