中国机械工程 ›› 2023, Vol. 34 ›› Issue (06): 746-755.DOI: 10.3969/j.issn.1004-132X.2023.06.014

• 工程前沿 • 上一篇    下一篇

软制动能量再生助力及其散热管理系统

周鑫;雷贤卿;李阁强   

  1. 河南科技大学机电工程学院,洛阳,471003
  • 出版日期:2023-03-25 发布日期:2023-04-04
  • 通讯作者: 雷贤卿(通信作者),男,1963年生,教授、博士研究生导师。研究方向为机械传动过程中的精密测试技术及先进制造技术。E-mail:ly-lxq@163.com。
  • 作者简介:周鑫,男,1986年生,博士研究生。研究方向为液压传动与控制,电液伺服系统控制技术。E-mail:zhouxin716@126.com。
  • 基金资助:
    扬州市科技项目(YZ2019019);山东省重点研发计划(国际科技合作)(2019GHZ013)

Energy Regeneration Assistance of Soft Braking and Corresponding Thermal Dissipation Management System

ZHOU Xin;LEI Xianqing;LI Geqiang   

  1. School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang,Henan,471003
  • Online:2023-03-25 Published:2023-04-04

摘要: 为提高矿用宽体车动力性能和液压系统温度管理水平,优化了液压系统设计。优化后的液压系统安装在某矿用宽体车上,与常规设计手段下为提高整车动力性能搭载更大流量发动机的同型号车型在矿区完成了满载驳运对比试验。同时利用AMESim和AVL Cruise对液压系统建立了物理模型,在经典工况下仿真了该系统各模块的动态特性以及整车的动力性能。仿真和试验结果均表明:该系统在重载下坡运输过程中可实现软制动,能量再生模块可提高整车动力性指标,与选用大流量发动机的同型号整车相近,但综合油耗降低约17%;能量再生模块能有效吸收轮边冲击以及液压系统模块切换瞬间压力冲击;液压系统中的热管理模块可实现矿用宽体车在-5~45 ℃的环境温度下作业,使系统热平衡温度保持在70±5 ℃,在极寒作业过程中使用箱体辅助加热作业提高了驳运效率,同时使液压系统能量利用率提高了19%。

关键词: 软制动, 液压助力, 散热管理, AMESim仿真

Abstract: In order to improve the power performance and the management level of hydraulic system temperature, the hydraulic system design was optimized for mine wide-body truck. This improved hydraulic system was installed in one mine wide-body truck which was used to do a full load transfer comparison test with a mine wide-body truck that was of the same model but enhanced with the engine capacity. At the same time, a physical model was established with AMESim and AVL Cruise to simulate dynamic properties of each module and power performance of the whole mine wide-body truck of the hydraulic system under normal working circumstances. The simulation and testing results show that the system may achieve soft braking during heavy load downhill transportation. The energy regeneration module may improve the power performance index as same as the mine wide-body truck which utilized larger displacement engine, and reduce the combined fuel consumption by about 17%. The energy regeneration module may effectively absorb wheel edge impacts and instantaneous pressure impacts caused by hydraulic system module switching. The thermal management module of the hydraulic system may make the mine wide-body truck working under ambient temperatures ranging from -5 ℃ to 45 ℃, and keep the thermal equilibrium temperature of the system at 70±5 ℃. Meanwhile, carriage auxiliary heating employed in extreme cold weather may improve the lighter efficiency as well as the energy utilization of the hydraulic system by 19%.

Key words: soft braking, hydraulic pressure assisted, heat dissipation management, AMESim simulation

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