Design and validation of electro-hydraulic pumping unit for smart manufacturing

Smart manufacturing plays a pivot role in the field of advanced manufacturing technology. In this work, we propose an electro-hydraulic pumping unit on the basis of axial piston pump for smart manufacturing. In this system, the electric motor and the hydraulic pump are integrated to meet the requirement of smart components. Based on the working principle, both the control strategy and the energy management strategy are established. We evaluate the working performance of the proposed system by using a prototype of the pumping unit. The implementation of the proposed pumping unit is carried out on a numerical control machine. Experimental results verify the effectiveness of the electro-hydraulic pumping unit in practical use.