| 车用液力缓速器布置方式分类与特点分析 |
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| 引用本文： | 穆洪斌,彭勇,朱华光,魏巍,闫清东.车用液力缓速器布置方式分类与特点分析[J].液压与气动,2019,0(6):22-28. |
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| 作者姓名： | 穆洪斌 彭勇 朱华光 魏巍 闫清东 |
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| 作者单位： | 1. 北京宇航系统工程研究所， 北京100076; 2. 北京理工大学车辆传动国家重点实验室， 北京100081 |
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| 基金项目： | 国家自然科学基金（51475041） |
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| 摘 要： | 对液力缓速器在车辆传动系统中的常见布置方式进行总结，并结合液力缓速器相对于变速机构前置、中置与后置型，针对结构特点、制动特性、拆装维护性等方面进行不同布置方式优缺点的分析比较。基于某型双循环圆液力缓速器，研究了液力缓速器前置与后置型对制动特性的影响。仿真结果分析表明，后置型液力缓速器具有良好的制动特性，前置型液力缓速器低挡位输出制动转矩优于后置型，其整车低速制动特性也优于后置工况。
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| 关 键 词： | 液力缓速器 变速机构 布置方式 制动特性 |
| 收稿时间： | 2018-10-14 |
Layout Classification and Feature Analysis of Vehicle Hydrodynamic Retarders |
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| MU Hong-bin,PENG Yong,ZHU Hua-guang,WEI Wei,YAN Qing-dong.Layout Classification and Feature Analysis of Vehicle Hydrodynamic Retarders[J].Chinese Hydraulics & Pneumatics,2019,0(6):22-28. |
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| Authors: | MU Hong-bin PENG Yong ZHU Hua-guang WEI Wei YAN Qing-dong |
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| Affiliation: | 1. Beijing Institute of Astronautical Systems Engineering, Beijing100076;
2. National Key Lab of Vehicular Transmission, Beijing Institute of Technology, Beijing100081 |
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| Abstract: | Common arrangements of hydrodynamic retarders in vehicle transmission system are presented and summarized. Combined with front-mid and rear-hydrodynamic retarders relative to transmission mechanism, advantages and disadvantages of different arrangements are analyzed and compared in terms of structural characteristics, braking performance, disassembly and assembly, maintenance, etc. Based on a certain dual torus hydrodynamic retarder, the effects of front and rear type on braking performance are studied. The simulation result shows that the rear-hydrodynamic retarder has good braking performance; the front-hydrodynamic retarder can output greater braking torque than the rear type under low gear of transmission mechanism. As well, the front-hydrodynamic retarder has better braking performance at low vehicle speed. |
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