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首页> 外文会议>Leeds-Lyon Symposium on Tribology; 20000905-08; Lyon(FR) >Toroidal CVTs: Rationalizing the Fluid Performance Requirements
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Toroidal CVTs: Rationalizing the Fluid Performance Requirements

机译：环形CVT：合理化流体性能要求

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摘要

Global demands for fuel economy and reduced emissions have forced the automobile manufacturers to make significant changes over the last few decades. This has resulted in major improvements in engine designs and control systems, vehicle aerodynamics, tire design and fuel quality. In order to meet stringent government regulations and demands for better driveability, improvements have been made in the drive train components of the vehicles as well. Toroidal-CVT (t-CVT) has recently been introduced as an alternative automatic transmission technology. Traction fluid is a key component of a t-CVT, since it is responsible for power transmission in this type of transmission. Additional performance requirements which must be addressed in the formulation of practical automotive traction fluids include: low temperature viscometrics, volatility, flash point, oxidation stability, elastomer compatibility, shear stability, clutch friction performance, and antiwear protection. In this work the extent of compromise among desirable characteristics in optimizing an automotive traction fluid for widespread use will be examined.
机译：在过去的几十年中，全球对燃油经济性和减少排放的需求迫使汽车制造商做出重大改变。这导致了发动机设计和控制系统，车辆空气动力学，轮胎设计和燃油质量的重大改进。为了满足严格的政府法规和对更好的驾驶性的要求，还对车辆的传动系组件进行了改进。环形无级变速器（t-CVT）最近被引入作为一种替代性自动变速器技术。牵引流体是t-CVT的关键组件，因为它负责这种类型的传动中的动力传递。在实际的汽车牵引液配方中必须解决的其他性能要求包括：低温粘度，挥发性，闪点，氧化稳定性，弹性体相容性，剪切稳定性，离合器摩擦性能和抗磨保护。在这项工作中，将研究在优化用于广泛使用的汽车牵引液时所需特性之间的折衷程度。

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