一种基于双层优化的电液系统节能控制方法
By constructing a two-layer optimized electro-hydraulic system control method, the control of valve-controlled hydraulic cylinders and hydraulic pumps is integrated into an optimization problem, solving the suboptimal problem caused by separate control of pumps and valves, and achieving high-precision and high-efficiency control of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2025-10-23
- Publication Date
- 2026-07-17
AI Technical Summary
In existing electro-hydraulic systems, the separate control of pumps and valves leads to suboptimal control, affecting the system's controllability and energy efficiency. Furthermore, existing coordinated control methods cannot effectively incorporate changes in pump motion, resulting in flow saturation or reduced energy efficiency.
A bi-level optimization method is adopted to integrate the position control of the valve-controlled hydraulic cylinder and the energy-optimal control of the hydraulic pump into a bi-level optimization problem. The problem is transformed into constraints through Kuhn-Tucker (KKT) conditions, and a bi-level optimization controller is constructed to achieve the overall optimal control of the pump and valve.
It improves the control performance and energy efficiency of the electro-hydraulic system, reduces system energy loss, and achieves high-precision and high-efficiency control.
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Figure CN121229466B_ABST
Abstract
Citation Information
Patent Citations
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