Apparatus and method for detection of deformation in battery cells

    公开(公告)号:US11522232B2

    公开(公告)日:2022-12-06

    申请号:US16285294

    申请日:2019-02-26

    Applicant: Tesla, Inc.

    Inventor: Michael Kahn

    Abstract: A deformation detection apparatus includes a cell movement-control assembly to handle a linear motion and a rotational motion of a battery cell, a body that supports the cell movement-control assembly, a digital micrometer, and control circuitry. The control circuitry controls a displacement of the battery cell between a first position and a second position along a longitudinal axis through a scanning region of the digital micrometer and a plurality of rotational positions of the battery cell at a plurality of charge states and a plurality of discharge states. The control circuitry measures a plurality of outer diameter values of the battery cell for a plurality of linear positions and a plurality of rotational positions along the longitudinal axis of the battery cell and determines a change in a geometrical shape (deformation and/or strain) of the battery cell for the plurality of linear positions and the plurality of rotational positions.

    Measurement of material dimensions

    公开(公告)号:US11099011B2

    公开(公告)日:2021-08-24

    申请号:US15529556

    申请日:2015-11-24

    Inventor: Ulrich Rattunde

    Abstract: The invention relates to a method for determining material dimensions of a longitudinal profiled section (2) during a sawing process, in which a saw blade (3) is advanced, the longitudinal profiled section (2) being machined by said saw blade (3) along a saw groove during this time; advancement position data of said saw blade (3) along the advancement path (s) being determined and, during this sawing operation, additional measurement data being determined from the group of sawing force (Fs) or another variable which corresponds to the sawing force (Fs). The invention is characterised in that an actual profile is determined from the advancement position data and said additional measurement data.

    METHOD AND DEVICE FOR PREDICTING VOLUME MEDIAN DIAMETER IN OVERLAPPED SPRAY AREA OF TWIN NOZZLES

    公开(公告)号:US20210215479A1

    公开(公告)日:2021-07-15

    申请号:US16932537

    申请日:2020-07-17

    Abstract: The invention relates to a method and device for predicting a volume median diameter (VIVID) in an overlapped spray area of twin nozzles. Placing a single nozzle at different heights to determine a spray area; measuring all VMDs in the spray area to obtain first true measured values; dividing the first true measured values to construct a first calibration set and a first prediction set; establishing a polynomial fitting formula by a REGRESS function; placing twin nozzles at different heights and different nozzle spacing, and measuring VMDs in the overlapped spray area to obtain second true measured values; determining simulated values of the VMDs of first and second nozzles; dividing the simulated values of the VMDs and the second true measured values to construct a second calibration set and a second prediction set; quantitatively calibrating by using a radial basis function neural network (RBFNN) to obtain a prediction model; determining a VIVID in the overlapped spray area of twin nozzles.

    Course estimator and method of estimating a state of a course of a vehicle and a non-transitory computer-readable storage medium for the same

    公开(公告)号:US10538251B2

    公开(公告)日:2020-01-21

    申请号:US14575006

    申请日:2014-12-18

    Abstract: A course estimator has a first estimating means, a second estimating means and a determining means. The first estimating means obtains first information and estimating a first radius of a first forward traveling path on the basis of the obtained first information, the first forward traveling path being a part of a forward traveling path to which a vehicle is going to travel. The second estimating means obtains second information and estimating a second radius of a second forward traveling path on the basis of the obtained second information, the second forward traveling path being a part of the forward traveling path to which a vehicle is going to travel, the second forward traveling path being farther from the vehicle than the first traveling being. The determining means determines whether or not there is a changing point where road shapes change between the first forward traveling path and the second forward traveling path on the basis of comparison of the estimated first radius and the estimated second radius.

    Device for measuring an internal or external profile of a tubular component
    8.
    发明授权
    Device for measuring an internal or external profile of a tubular component 有权
    用于测量管状部件的内部或外部轮廓的装置

    公开(公告)号:US09400162B2

    公开(公告)日:2016-07-26

    申请号:US14369365

    申请日:2012-12-26

    Abstract: A device includes a first sensor for making a radial measurement of a tubular component and a support which can drive the first sensor in a circular trajectory in a predefined plane orthogonal to the principal axis of the component. The support includes a principal body that can be attached to the component by a releasable attachment mechanism and a rotary shaft onto which an arm carrying the first sensor is attached to allow displacement of the first sensor in a circular trajectory inside or about the component. The device further includes a second sensor for measuring an angular position of the first sensor for each of its radial measurements, the radial and angular measurements obtained allowing the profile of the component in the predefined plane to be determined.

    Abstract translation: 一种装置包括用于进行管状部件的径向测量的第一传感器和能够以与部件的主轴正交的预定平面中的圆形轨迹驱动第一传感器的支撑件。 支撑件包括主体,其可以通过可释放的附接机构和旋转轴附接到部件上,在所述旋转轴上安装有承载第一传感器的臂,以允许第一传感器以部件内部或周围的圆形轨迹移位。 该装置还包括第二传感器,用于在其每个径向测量中测量第一传感器的角位置,获得的径向和角度测量值允许确定预定平面中的部件的轮廓。

    Adjusting wheel diameter
    9.
    发明授权
    Adjusting wheel diameter 有权
    调整车轮直径

    公开(公告)号:US08855975B2

    公开(公告)日:2014-10-07

    申请号:US13307128

    申请日:2011-11-30

    CPC classification number: G01B21/10 B61K9/12

    Abstract: A method and apparatus for adjusting wheel diameter by acquiring a current wheel diameter distribution vector; calculating similarity scores between the current wheel diameter distribution vector and known wheel diameter distribution vector clusters to determine a potential wear rate of the current wheel diameter distribution vector; calculating similarity scores between candidate target wheel diameter distribution vectors and the known wheel diameter distribution vector clusters to determine a potential wear rates of the candidate target wheel diameter distribution vectors; and selecting a target wheel diameter distribution vector from the candidate target wheel diameter distribution vectors, such that the reduction of potential wear rate achieved by switching the current wheel diameter distribution vector to the target wheel diameter distribution vector meets a predetermined condition. Future potential wear rates and the amount of grinding required during train maintenance can be optimized through changing wheel diameter distribution vectors.

    Abstract translation: 一种通过获取当前车轮直径分布向量来调整车轮直径的方法和装置; 计算当前车轮直径分布向量与已知车轮直径分布向量集合之间的相似性得分,以确定当前车轮直径分布向量的潜在磨损率; 计算候选目标轮直径分布向量与已知车轮直径分布向量簇之间的相似度分数,以确定候选目标车轮直径分布向量的潜在磨损率; 并且从候选目标车轮直径分布向量中选择目标车轮直径分布向量,使得通过将当前车轮直径分布矢量切换到目标车轮直径分布矢量而实现的潜在磨损率的降低满足预定条件。 可以通过改变车轮直径分布向量来优化列车维护期间所需的潜在磨损率和磨削量。

    Body composition measuring instrument for recognizing changes in body composition
    10.
    发明授权
    Body composition measuring instrument for recognizing changes in body composition 有权
    用于识别身体成分变化的身体成分测量仪器

    公开(公告)号:US07979116B2

    公开(公告)日:2011-07-12

    申请号:US12281955

    申请日:2007-01-26

    Abstract: A body composition measuring instrument includes a body composition calculating unit for calculating the body composition of a user by using a plurality of electrodes, a reference value storage region for storing information of a reference value related to the past body composition of the user, a display control unit for performing a control to display a position of the body composition during the time calculated by the body composition calculating unit in reference to a line showing the reference value on a predetermined graph, and a display section for providing a display corresponding to the output from the display control unit.

    Abstract translation: 身体成分测量仪器包括:身体成分计算单元,用于通过使用多个电极来计算使用者的身体成分;基准值存储区域,用于存储与用户的过去身体构成相关的参考值的信息;显示器 控制单元,用于执行控制以在由身体成分计算单元计算的时间期间参考在预定图表上示出参考值的线显示身体成分的位置;以及显示部分,用于提供对应于输出的显示 从显示控制单元。

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