液压挖掘机的控制方法、装置和液压挖掘机
By combining the control methods of hydraulic excavators with PID control modules and feedforward compensation technology, precise control of the main pump displacement is achieved, solving the vibration problem of hydraulic excavators under heavy load and obstacle-avoidance conditions, and improving working stability and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SANY HEAVY MACHINERY
- Filing Date
- 2023-11-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hydraulic excavators are prone to vibration under heavy loads and when getting out of trouble, and current technology lacks effective methods to suppress this vibration.
The control method of hydraulic excavators is adopted, which uses a main pump power adjustment PID control module, an engine power adjustment PID control module and a main pump displacement adjustment PID control module, combined with feedforward compensation and displacement correction coefficient adjustment, to achieve precise control of the main pump displacement and suppress vibration.
It effectively suppresses the vibration of hydraulic excavators under heavy load and obstacle-avoidance conditions, improves working stability and efficiency, and protects the smooth operation of the engine.
Smart Images
Figure CN117627104B_ABST