Journal of Engineering Research

As the intelligent development of construction machinery progresses, hydraulic and electrical hybrid drive arms have garnered significant attention due to their combined advantages of high efficiency, energy savings, and precise control. Focusing on their control strategies, this paper analyzes the characteristics of hybrid drive systems and addresses the challenges in energy management and motion control by proposing a collaborative strategy based on model predictive and adaptive control. By optimizing the logic for coordinated operation between the hydraulic pump and motor, combined with the rapid response capability of the electrical servo system, the strategy aims to reduce system energy consumption and improve control accuracy. Simulation and experimental validation show that this strategy effectively enhances the dynamic performance and energy utilization efficiency of construction machinery arms, providing technical support for the widespread application of hybrid drive arms.

Hydraulic and electrical hybrid drive; Construction machinery arm; Control strategy; Model predictive control; Adaptive control