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A platform for research: civil engineering, architecture and urbanism
Road roller steering system and control method thereof
The invention discloses a road roller steering system and a control method thereof.The road roller steering system comprises a hydraulic steering system and a steering gear box which are installed between a front frame and a rear frame which are hinged to each other, and the steering gear box controls the relative swing angle of the front frame and the rear frame through the hydraulic steering system; the hydraulic steering system comprises a steering oil cylinder and an electric control steering proportional valve, and the electric control steering proportional valve controls the steering oil cylinder to stretch out and draw back. A piston rod expansion amount sensor is arranged on the steering oil cylinder, a steering angle sensor is arranged on the steering gear box, a controller is arranged between the hydraulic steering system and the steering gear box, and the controller controls the opening degree of the electric control steering proportional valve according to signals of the steering angle sensor and the piston rod expansion amount sensor. The method has the beneficial effects that by controlling the steering angle of the whole machine and the rotation angle of the steering wheel to be kept synchronous, the response speed of a steering system is increased, the obstacle avoidance capacity of the whole machine is improved, and meanwhile the operation intensity of an operator can be reduced. And by arranging the emergency steering system, the reliability of the steering system is improved.
本发明公开了一种压路机转向系统及其控制方法，包括安装在相互铰接的前车架和后车架之间的液压转向系统和方向机，方向机通过液压转向系统控制前车架与后车架相对摆动角度；液压转向系统包括转向油缸和电控转向比例阀，电控转向比例阀控制转向油缸的伸缩；转向油缸上设有活塞杆伸缩量传感器，方向机上设有转向角度传感器，液压转向系统和方向机之间设有控制器，控制器根据转向角度传感器和活塞杆伸缩量传感器的信号控制电控转向比例阀的开度。有益效果：本发明通过控制整机的转向角与方向盘转动角度保持同步，提高了转向系统响应速度，提高了整机的避障能力，同时能够降低操作者的操作强度。通过设置应急转向系统提高了转向系统的可靠性。
Road roller steering system and control method thereof
The invention discloses a road roller steering system and a control method thereof.The road roller steering system comprises a hydraulic steering system and a steering gear box which are installed between a front frame and a rear frame which are hinged to each other, and the steering gear box controls the relative swing angle of the front frame and the rear frame through the hydraulic steering system; the hydraulic steering system comprises a steering oil cylinder and an electric control steering proportional valve, and the electric control steering proportional valve controls the steering oil cylinder to stretch out and draw back. A piston rod expansion amount sensor is arranged on the steering oil cylinder, a steering angle sensor is arranged on the steering gear box, a controller is arranged between the hydraulic steering system and the steering gear box, and the controller controls the opening degree of the electric control steering proportional valve according to signals of the steering angle sensor and the piston rod expansion amount sensor. The method has the beneficial effects that by controlling the steering angle of the whole machine and the rotation angle of the steering wheel to be kept synchronous, the response speed of a steering system is increased, the obstacle avoidance capacity of the whole machine is improved, and meanwhile the operation intensity of an operator can be reduced. And by arranging the emergency steering system, the reliability of the steering system is improved.
本发明公开了一种压路机转向系统及其控制方法，包括安装在相互铰接的前车架和后车架之间的液压转向系统和方向机，方向机通过液压转向系统控制前车架与后车架相对摆动角度；液压转向系统包括转向油缸和电控转向比例阀，电控转向比例阀控制转向油缸的伸缩；转向油缸上设有活塞杆伸缩量传感器，方向机上设有转向角度传感器，液压转向系统和方向机之间设有控制器，控制器根据转向角度传感器和活塞杆伸缩量传感器的信号控制电控转向比例阀的开度。有益效果：本发明通过控制整机的转向角与方向盘转动角度保持同步，提高了转向系统响应速度，提高了整机的避障能力，同时能够降低操作者的操作强度。通过设置应急转向系统提高了转向系统的可靠性。
Road roller steering system and control method thereof
一种压路机转向系统及其控制方法
TAN ZUOZHOU (author) / CHEN YUNYU (author) / HUANG XIAO (author) / ZHANG GUOXIN (author)
2022-11-11
Patent
Electronic Resource
Chinese
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