Control of a transmission friction element using an adaptive transfer function
    1.
    发明授权
    Control of a transmission friction element using an adaptive transfer function 有权
    使用自适应传递函数控制传动摩擦元件

    公开(公告)号:US09512889B2

    公开(公告)日:2016-12-06

    申请号:US13873423

    申请日:2013-04-30

    IPC分类号: F16D48/06

    摘要: A transmission clutch control method includes defining a transfer function relating clutch torque to a control signal under transmission operating conditions; determining a target clutch torque for current operating conditions; determining the target control signal from the transfer function to produce target torque at the clutch; correcting clutch torque on the basis of a difference between the target clutch torque and the actual torque at the clutch by adjusting the control signal; calculating actual clutch torque with reference to transmission input torque and transmission output torque; computing a clutch torque error as a difference between calculated clutch torque and the target clutch torque; and repetitively adjusting the transfer function on the basis of the clutch torque error.

    摘要翻译: 传动离合器控制方法包括在传动操作条件下定义与离合器扭矩相关的控制信号的传递函数; 确定当前操作条件的目标离合器扭矩; 从传递函数确定目标控制信号以在离合器处产生目标转矩; 通过调整控制信号,根据目标离合器转矩与离合器的实际转矩之间的差来修正离合器转矩; 参考传动输入扭矩和变速器输出扭矩计算实际离合器扭矩; 计算离合器扭矩误差作为计算的离合器扭矩与目标离合器扭矩之差; 并基于离合器转矩误差重复地调节传递函数。

    Magnetic Sensor Packaging for Transmissions
    2.
    发明申请
    Magnetic Sensor Packaging for Transmissions 审中-公开
    传感器用磁传感器封装

    公开(公告)号:US20160153851A1

    公开(公告)日:2016-06-02

    申请号:US15016654

    申请日:2016-02-05

    IPC分类号: G01L3/10

    摘要: Designs to package a magneto-elastic torque sensor in an automotive transmission for volume production applications are provided. A transfer case assembly includes a transfer case shaft having a magnetized region and a magnetic torque sensor, for detecting torque of the transfer case shaft, mounted on at least one bushing supporting the transfer case shaft. A drive axle assembly includes an axle housing, an input shaft having a magnetized region, and a magnetic torque sensor, for detecting torque of the input shaft, mounted to the axle housing.

    摘要翻译: 提供了一种用于在体积生产应用中在汽车变速箱中包装磁弹性转矩传感器的设计。 转移箱组件包括具有磁化区域的转移壳体轴和用于检测转移壳体轴的扭矩的转矩传感器,该转矩传感器壳体轴安装在支撑转移壳体轴的至少一个衬套上。 驱动轴组件包括轴壳体,具有磁化区域的输入轴和磁力矩传感器,用于检测安装到轴壳体上的输入轴的扭矩。

    CONTROLLING AN AUTOMATIC TRANSMISSION
    3.
    发明申请
    CONTROLLING AN AUTOMATIC TRANSMISSION 有权
    控制自动变速器

    公开(公告)号:US20150354698A1

    公开(公告)日:2015-12-10

    申请号:US14295470

    申请日:2014-06-04

    IPC分类号: F16H61/04 F16H61/26

    摘要: A method of downshifting an automotive transmission. An on-coming transmission element is stroked while pressure for an off-going element is reduced. Pressure for the stroked on-coming element is increased to be sufficient to carry torque. Pressure for the off-going element is reduced below a torque transmitting amount once the stroked on-coming element has a sufficient torque carrying capacity. Torque capacities for the elements are determined from transmission output torque and acceleration and transmission input torque and acceleration. Feed forward or feedback terms for off-going and on-coming element torque capacities may be calculated using the transmission output torque, transmission input acceleration, and transmission input torque.

    摘要翻译: 降低汽车变速器的方法。 随着传送元件被击打,同时减少了一个离开元件的压力。 触摸的进入元件的压力增加到足以承受扭矩。 一旦触摸的即将来到的元件具有足够的转矩承载能力,则离开元件的压力降低到低于转矩传递量的压力。 元件的转矩容量由变速器输出转矩和加速度以及变速箱输入转矩和加速度决定。 可以使用变速器输出扭矩,变速器输入加速度和变速器输入转矩来计算进给和进来的元件转矩容量的前馈或反馈条件。

    Skip-shift operations for automatic transmission systems
    4.
    发明授权
    Skip-shift operations for automatic transmission systems 有权
    自动变速系统的跳班操作

    公开(公告)号:US08996262B2

    公开(公告)日:2015-03-31

    申请号:US13914332

    申请日:2013-06-10

    IPC分类号: G06F7/00 F16H61/68

    摘要: Method and system providing manual skip-shift for operating the automatic transmission of a vehicle. The method includes accepting the input of gear states by operating a selector mechanism to select a value. The system accepts input of a selected sequence of gear states from a plurality of available gear states, the selected sequence including fewer gear states than the number of available gear states. The system then operates a selector mechanism to select the gear state from the selected sequence. The system also includes an electronic control module, a selector mechanism, and a power train control module.

    摘要翻译: 提供用于操作车辆自动变速器的手动跳跃的方法和系统。 该方法包括通过操作选择器机构来选择一个值来接受齿轮状态的输入。 系统接受来自多个可用齿轮状态的所选择的齿轮状态序列的输入,所选序列包括比可用齿轮状态数更少的齿轮状态。 然后,系统操作选择器机构以从所选序列中选择档位状态。 该系统还包括电子控制模块,选择器机构和动力传动系控制模块。

    Road grade auto-mapping
    5.
    发明授权
    Road grade auto-mapping 有权
    道路自动映射

    公开(公告)号:US08965597B2

    公开(公告)日:2015-02-24

    申请号:US13777100

    申请日:2013-02-26

    摘要: Road grade is modeled over a region in which a vehicle is driven on roadways having a grade that varies over a plurality of predetermined grade ranges. A succession of grade values are generated while operating the vehicle at a predetermined rate, wherein each grade value identifies a respective grade range then being encountered. A Markov chain road-grade model is updated in response to the succession of grade values, wherein the model represents respective elements of probability in a matrix of transition events from each predetermined grade range to a respective next-in-succession grade range. Each element of the matrix has a value πi,j representing a weighted frequency of transition events from a first respective grade value to a second respective grade value divided by a weighted frequency of transition events initiating from the first respective grade value, so that the matrix successively approximates the road grade of the region.

    摘要翻译: 道路坡度建模在车辆在具有在多个预定等级范围内变化的等级的道路上行驶的区域上。 在以预定的速率操作车辆时产生一连串的等级值,其中每个等级值识别然后遇到的相应的坡度范围。 根据等级值的连续性来更新马尔可夫链道路等级模型,其中模型表示从每个预定等级范围到相应的后继级别范围的过渡事件的矩阵中的概率的相应元素。 矩阵的每个元素具有值“p”; i,j表示从第一相应等级值到第二相应等级值的转移事件的加权频率除以从第一相应等级值开始的转换事件的加权频率,使得 矩阵依次逼近该区域的道路等级。