静液压叉车制动能量回收系统设计与仿真研究

静液压叉车通过制动溢流阀完成行走制动的过程中，叉车大部分动量以热能的形式流失。为了减少制动溢流损失，设计一套基于蓄能器及双联泵/马达的静液压叉车行走制动能量回收系统。分析该能量回收系统工作原理，对叉车各元件的参数进行了计算，建立了系统数学模型和AMESim仿真模型，并对无能量回收启停和能量回收启停两种工况进行了对比分析。结果表明：该系统的蓄能器回收效率可达到26.41%，能量再利用效率可达到90.81%，总节能效率最高可达23.98%。此能量回收系统节能效率可观，为静液压叉车节能技术的进一步研究提供了参考。

Design and Simulation of Braking Energy Recovery System for Hydrostatic Forklift

When the hydrostatic forklift completes the walking braking process through the brake relief valve, most of the momentum of the forklift is lost in the form of heat energy. In order to reduce the braking energy loss, this paper designs a hydrostatic forklift traveling brake energy recovery system based on an accumulator and a dual pump/motor. The working principle of the energy recovery system is analyzed, the parameters of each part of the forklift are calculated, the mathematical model of the system and the AMESim simulation model are established, and the two operating conditions of start-stop without energy recovery and start-stop with energy recovery are compared and analyzed. The results show that the recovery efficiency of the accumulator of the system can reach 26.41%, the energy reuse efficiency can reach 90.81%, and the total energy saving efficiency can reach up to 23.98%. The energy-saving efficiency of this energy recovery system is considerable, which provides a reference for further research on energy-saving technology of hydrostatic forklifts.