Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Excavator rotation control method, control system and controller
The invention relates to an excavator rotation control method and system and a controller, and the method comprises the following steps: obtaining pilot pressure P during the action period of an operation handle, and obtaining an expected rotation speed ratio n1 based on a pilot pressure interval; the rotation angular speed S of the excavator is obtained, and the real-time rotation speed ratio n2 is obtained based on the rotation angular speed interval; determining a rotation speed change limit value n3 according to the pilot pressure coefficient, the speed correction constant and the obtained real-time rotation speed ratio n2; and determining a control output speed ratio n by taking the minimum value of the expected rotation speed ratio n1 and the rotation speed change limit value n3 as a reference, converting the control output speed ratio n into a main pump displacement output ratio V, and outputting corresponding current to the main pump according to the current and displacement relation curve of the main pump.
本发明涉及挖掘机回转控制方法、控制系统和控制器，包括以下步骤：获取操作手柄动作期间的先导压力P，基于先导压力区间，得到期望回转速度比值n1；获取挖掘机回转角速度S，基于回转角速度区间，得到实时回转速度比值n2；根据先导压力系数、速度修正常数和得到的实时回转速度比值n2，确定回转速度变化限制值n3；以期望回转速度比值n1和回转速度变化限制值n3的最小值为基准，确定控制输出速度比值n，并转换为主泵排量输出比值V，根据主泵的电流和排量关系曲线，输出相应的电流至主泵。
Excavator rotation control method, control system and controller
The invention relates to an excavator rotation control method and system and a controller, and the method comprises the following steps: obtaining pilot pressure P during the action period of an operation handle, and obtaining an expected rotation speed ratio n1 based on a pilot pressure interval; the rotation angular speed S of the excavator is obtained, and the real-time rotation speed ratio n2 is obtained based on the rotation angular speed interval; determining a rotation speed change limit value n3 according to the pilot pressure coefficient, the speed correction constant and the obtained real-time rotation speed ratio n2; and determining a control output speed ratio n by taking the minimum value of the expected rotation speed ratio n1 and the rotation speed change limit value n3 as a reference, converting the control output speed ratio n into a main pump displacement output ratio V, and outputting corresponding current to the main pump according to the current and displacement relation curve of the main pump.
本发明涉及挖掘机回转控制方法、控制系统和控制器，包括以下步骤：获取操作手柄动作期间的先导压力P，基于先导压力区间，得到期望回转速度比值n1；获取挖掘机回转角速度S，基于回转角速度区间，得到实时回转速度比值n2；根据先导压力系数、速度修正常数和得到的实时回转速度比值n2，确定回转速度变化限制值n3；以期望回转速度比值n1和回转速度变化限制值n3的最小值为基准，确定控制输出速度比值n，并转换为主泵排量输出比值V，根据主泵的电流和排量关系曲线，输出相应的电流至主泵。
Excavator rotation control method, control system and controller
挖掘机回转控制方法、控制系统和控制器
ZHAO YUANZHI (Autor:in) / LI BING (Autor:in) / HU YUEPING (Autor:in) / GAO YUXIA (Autor:in) / LI WENTAO (Autor:in) / WANG ZHENGHANG (Autor:in)
13.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
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