REAL TIME LIFE MODELS FOR AUTOMATIC TRANSMISSION FLUIDS
    13.
    发明申请
    REAL TIME LIFE MODELS FOR AUTOMATIC TRANSMISSION FLUIDS 失效
    用于自动变速箱的实时生命模型

    公开(公告)号:US20050165583A1

    公开(公告)日:2005-07-28

    申请号:US10765239

    申请日:2004-01-26

    CPC classification number: G01N33/2876 F16H57/0405

    Abstract: The remaining useful life of a transmission fluid in a vehicle is continually estimated by a transmission control computer module during vehicle operation using both an oxidation model and a shift energy model. The oxidation model uses experimentally determined remaining useful fluid life values obtained at temperatures experienced by the fluid in transmission usage and subtracts incremental values from said life based on the temperature-time experience of volume fractions of the fluid in the sump and torque converter. The shift energy model starts with an estimated maximum number of shifts and continually obtains a current remaining useful life by deducting for actual shifts and estimated shift energy inputs based on fluid temperature. Notice of end of fluid useful life is given when one of the models first determines no remaining useful fluid life.

    Abstract translation: 在车辆操作期间,车辆中的变速器油的剩余使用寿命通过变速器控制计算机模块在氧化模型和换档能量模型两者中连续地估计。 氧化模型使用在流体在传输使用中经历的温度下获得的实验确定的剩余有用的流体寿命值,并且基于贮槽和变矩器中流体的体积分数的温度 - 时间经验从所述寿命中减去增量值。 换挡能量模型以估计的最大换挡数开始,并通过扣除实际换档和基于流体温度的估计换挡能量输入,持续获得当前剩余使用寿命。 当其中一个型号首先确定没有剩余有用的流体寿命时,给出流体使用寿命结束的注意事项。

    Controlled release of perfluoropolyether antifoam additives from compounded rubber
    15.
    发明授权
    Controlled release of perfluoropolyether antifoam additives from compounded rubber 失效
    从复合橡胶控制释放全氟聚醚消泡剂

    公开(公告)号:US07087674B2

    公开(公告)日:2006-08-08

    申请号:US10365358

    申请日:2003-02-12

    Abstract: Antifoam compositions for functional fluids contain antifoam agents comprising perfluoropolyether compounds (PFPE). An automatic transmission fluid is provided containing the antifoam composition in a lubricating base oil, along with conventional additives such as antiwear agents. Automobile transmissions are provided that contain an automatic transmission fluid containing the new antifoam compositions. In a further embodiment, methods are provided for reducing foam in an engine oil or unwanted noise in an automobile transmission during operation, comprising lubricating the engine or transmission with a lubricating fluid containing the antifoam compositions of the invention.

    Abstract translation: 用于功能流体的消泡剂组合物含有包含全氟聚醚化合物(PFPE)的消泡剂。 在润滑油基础油中含有消泡剂组合物的自动变速器油以及诸如抗磨剂的常规添加剂。 提供包含含有新的消泡剂组合物的自动变速器流体的汽车变速器。 在另一实施例中,提供了用于在运行期间减少发动机机油中的泡沫或汽车变速箱中的不需要的噪声的方法,包括用含有本发明的消泡剂组合物的润滑流体润滑发动机或变速器。

    Real time life models for automatic transmission fluids
    17.
    发明授权
    Real time life models for automatic transmission fluids 失效
    自动变速器液体的实时生命模型

    公开(公告)号:US06920412B1

    公开(公告)日:2005-07-19

    申请号:US10765239

    申请日:2004-01-26

    CPC classification number: G01N33/2876 F16H57/0405

    Abstract: The remaining useful life of a transmission fluid in a vehicle is continually estimated by a transmission control computer module during vehicle operation using both an oxidation model and a shift energy model. The oxidation model uses experimentally determined remaining useful fluid life values obtained at temperatures experienced by the fluid in transmission usage and subtracts incremental values from said life based on the temperature-time experience of volume fractions of the fluid in the sump and torque converter. The shift energy model starts with an estimated maximum number of shifts and continually obtains a current remaining useful life by deducting for actual shifts and estimated shift energy inputs based on fluid temperature. Notice of end of fluid useful life is given when one of the models first determines no remaining useful fluid life.

    Abstract translation: 在车辆操作期间,车辆中的变速器油的剩余使用寿命通过变速器控制计算机模块在氧化模型和换档能量模型两者中连续地估计。 氧化模型使用在流体在传输使用中经历的温度下获得的实验确定的剩余有用的流体寿命值,并且基于贮槽和变矩器中流体的体积分数的温度 - 时间经验从所述寿命中减去增量值。 换挡能量模型以估计的最大换挡数开始,并通过扣除实际换档和基于流体温度的估计换挡能量输入,持续获得当前剩余使用寿命。 当其中一个型号首先确定没有剩余有用的流体寿命时,给出流体使用寿命结束的注意事项。

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