| 自动变速器液压滑阀控制压力设计补偿分析 |
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| 引用本文： | 薛殿伦,何佳议,倪石龙,周家豪.自动变速器液压滑阀控制压力设计补偿分析[J].液压与气动,2018,0(8):19-22. |
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| 作者姓名： | 薛殿伦 何佳议 倪石龙 周家豪 |
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| 作者单位： | 湖南大学汽车车身先进设计制造国家重点实验室， 湖南长沙410082 |
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| 基金项目： | 国家自然科学基金（51575166） |
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| 摘 要： | 液压滑阀在阀芯的偏置以及油液污染的影响下会产生一附加摩擦力。为研究附加摩擦力对滑阀工作特性的影响，基于Fluent对不同偏置下阀芯摩擦力进行仿真分析，得出阀芯摩擦力受阀芯偏置的影响情况。运用AMESim软件分析，得出所产生的附加摩擦力会延迟滑阀的压力响应时间。理论分析和对比仿真结果表明，在滑阀控制压力和弹簧预紧力设计时，适当的增大控制开启压力，能在一定程度上减小阀芯的响应延迟，从而补偿附加摩擦力的影响。
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| 关 键 词： | 液压滑阀 控制压力 阀芯偏置 阀芯摩擦力 |
| 收稿时间： | 2018-02-28 |
Compensation Analysis of Control Pressure Design for Hydraulic Spool Valve of Automatic Transmission |
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| XUE Dian-lun,HE Jia-yi,NI Shi-long,ZHOU Jia-hao.Compensation Analysis of Control Pressure Design for Hydraulic Spool Valve of Automatic Transmission[J].Chinese Hydraulics & Pneumatics,2018,0(8):19-22. |
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| Authors: | XUE Dian-lun HE Jia-yi NI Shi-long ZHOU Jia-hao |
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| Affiliation: | State Key Laboratory of Advance Design and Manufacturing for Vehicle Body, Hunan University, Changsha, Hunan410082 |
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| Abstract: | A hydraulic spool valve will produce an additional friction under impact of offset and oil pollution. To study the effect of additional friction on operating characteristics of slide valve, on the basis of theoretical analysis, we use Fluent to simulate friction forces of spool under different deviations, and obtain the impact of spool offset on friction force of valve core. And it is concluded that the generated additional friction will delay pressure response time of spool valve based on AMESim. In order to compensate for this additional influence, through theoretical analysis and comparison simulation, we can come to this conclusion that proper increase of control opening pressure can reduce response delay of spool. |
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