Development of an Intelligent Electric Motor-Driven Pump With High Energy Efficiency

• DOI: 10.1115/fpmc2024-140206
• Publication Date: 2024-10-25T23:17:20Z
• Authors: Bo Yang; Hong Pan; Yijie Lu; Zhenfei Ling; Haoyi Jiang; Hao Liu; Xiaoping Ouyang; Huayong Yang

Abstract This paper proposes an intelligent electric motor-driven pump (EMP) with continuously variable pressure (CVP) configuration and develops a prototype, whose output power can match the load power, effectively improving the efficiency and reducing the heat generation of the aircraft pump source. The intelligent EMP prototype consists of a motor and an axial piston pump. The axial piston pump integrates a position sensor to monitor the position of the control cylinder of the swashplate, and uses a servo valve to control the swashplate, thereby controlling the outlet pressure of the pump. Furthermore, a pressure/displacement double closed-loop control strategy for the intelligent EMP prototype is proposed, which uses the displacement-loop as the inner-loop and the pressure-loop as the outer-loop to improve the control accuracy and dynamic responsiveness of the outlet oil pressure. Simulation and experimental results shown that, compared with the traditional pump source with pressure-compensated variable displacement EMP, the energy efficiency of the pump source with intelligent EMP is significantly improved by 21.3% and 20.8% under the same flight profile load spectrum, respectively.