Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Valve control hydraulic cylinder control method and bulldozer dozer blade automatic control system
The invention relates to the technical field of digital construction, and discloses a control method of a valve-controlled hydraulic cylinder and an automatic control system of a bulldozer dozer blade. According to the method, the PID parameters of the PID control algorithm and enabling solutions of all closed-loop poles to be located on a negative real axis in a complex plane are obtained through setting, the stable performance of a closed-loop system can be guaranteed, and finally, after the target expansion and contraction amount is obtained, a closed-loop transfer function into which the PID parameters are imported can be applied to generate a continuous control signal. Therefore, when the valve-controlled hydraulic cylinder is applied to an automatic control system of the dozer blade of the bulldozer, the setting difficulty of control parameters can be reduced even if a control target is not clear enough due to the fact that nonlinear factors exist in the position control of a scraper knife, and the control accuracy of the valve-controlled hydraulic cylinder is improved. The purpose of fast, accurate and stable control in the control process of the valve-controlled hydraulic cylinder is achieved.
本发明涉及数字化施工技术领域，公开了一种阀控液压缸控制方法及推土机推土铲自动控制系统，其中的方法通过先根据辨识所得的开环传递参数，对闭环极点特征方程进行求解，并整定得到PID控制算法的且使所有闭环极点的解位于复平面中负实轴上的PID参数，可保证闭环系统的稳定性能，最终在得到目标伸缩量后，可应用已导入所述PID参数的闭环传递函数来生成连续控制信号，以便通过该连续控制信号来使阀控液压缸快准稳地完成所述目标伸缩量，进而在应用到推土机推土铲自动控制系统中时，即使在铲刀位置控制上存在非线性因素，导致控制目标不够清晰分明，也能降低控制参数的整定难度，实现在阀控液压缸控制过程中达成快、准和稳的控制目的。
Valve control hydraulic cylinder control method and bulldozer dozer blade automatic control system
The invention relates to the technical field of digital construction, and discloses a control method of a valve-controlled hydraulic cylinder and an automatic control system of a bulldozer dozer blade. According to the method, the PID parameters of the PID control algorithm and enabling solutions of all closed-loop poles to be located on a negative real axis in a complex plane are obtained through setting, the stable performance of a closed-loop system can be guaranteed, and finally, after the target expansion and contraction amount is obtained, a closed-loop transfer function into which the PID parameters are imported can be applied to generate a continuous control signal. Therefore, when the valve-controlled hydraulic cylinder is applied to an automatic control system of the dozer blade of the bulldozer, the setting difficulty of control parameters can be reduced even if a control target is not clear enough due to the fact that nonlinear factors exist in the position control of a scraper knife, and the control accuracy of the valve-controlled hydraulic cylinder is improved. The purpose of fast, accurate and stable control in the control process of the valve-controlled hydraulic cylinder is achieved.
本发明涉及数字化施工技术领域，公开了一种阀控液压缸控制方法及推土机推土铲自动控制系统，其中的方法通过先根据辨识所得的开环传递参数，对闭环极点特征方程进行求解，并整定得到PID控制算法的且使所有闭环极点的解位于复平面中负实轴上的PID参数，可保证闭环系统的稳定性能，最终在得到目标伸缩量后，可应用已导入所述PID参数的闭环传递函数来生成连续控制信号，以便通过该连续控制信号来使阀控液压缸快准稳地完成所述目标伸缩量，进而在应用到推土机推土铲自动控制系统中时，即使在铲刀位置控制上存在非线性因素，导致控制目标不够清晰分明，也能降低控制参数的整定难度，实现在阀控液压缸控制过程中达成快、准和稳的控制目的。
Valve control hydraulic cylinder control method and bulldozer dozer blade automatic control system
一种阀控液压缸控制方法及推土机推土铲自动控制系统
CHEN HUANBIN (Autor:in) / LIN JIEMAN (Autor:in) / YUAN YONGHU (Autor:in)
27.05.2022
Patent
Elektronische Ressource
Chinesisch
Bulldozer dozer blade automatic control method and device based on GNSS
| Europäisches Patentamt | 2022
| Tema Archiv | 1991