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    Method for determining the curvature of a curve passing through a plurality of points
    1.
    发明申请
    Method for determining the curvature of a curve passing through a plurality of points 审中-公开
    用于确定通过多个点的曲线的曲率的方法

    公开(公告)号：US20050261851A1

    公开(公告)日：2005-11-24

    申请号：US11055114

    申请日：2005-02-11

    申请人： Daniel Buck ,  Michael Diebel ,  Sinan Kazan ,  Alfred Lotter ,  Martin Wenz ,  Richard Zimmer

    发明人： Daniel Buck ,  Michael Diebel ,  Sinan Kazan ,  Alfred Lotter ,  Martin Wenz ,  Richard Zimmer

    IPC分类号： G01C21/26 ,  G01C17/38

    CPC分类号： G01C21/26

    摘要： In a method and apparatus for determining the curvature of a curve passing through a plurality of points, the shape of which is defined by a line connecting these points, curvature is assigned to the individual points by determining the position of adjacent points relative to the individual points. The curvature of a point (B) is determined by further taking into account two additional points (A, C), one of which (A) lies on the connecting line forward of the respective point (B) and the other (C) on the connecting line behind the respective point (B). The points (A, C) are determined such that they are as remote as possible from the respective point (B) and, at the same time, no points exist which lie between the respective point (B) and one of the additional points (A, C), and which are farther than a set distance from the connecting lines between the respective point (B) and each of the two additional points (A, C).

    摘要翻译： 在用于确定通过多个点的曲线的曲率的方法和装置中，其形状由连接这些点的线限定，通过确定相对于个体的相邻点的位置来将曲率分配给各个点 积分 点（B）的曲率通过进一步考虑两个附加点（A，C）来确定，其中一个点（A）位于相应点（B）的前面的连接线上，另一个（C） 相应点（B）后面的连接线。 点（A，C）被确定为使得它们彼此距离相应点（B）尽可能遥远，并且同时不存在位于相应点（B）和附加点（B）之间的点 A，C），并且距离相应点（B）和两个附加点（A，C）中的每一个之间的连接线的距离远。

    Method and device for determining a friction value representing frictions acting between a road and vehicle tires
    2.
    发明申请
    Method and device for determining a friction value representing frictions acting between a road and vehicle tires 审中-公开
    用于确定表示在道路和车辆轮胎之间作用的摩擦的摩擦值的方法和装置

    公开(公告)号：US20070016354A1

    公开(公告)日：2007-01-18

    申请号：US10550142

    申请日：2004-03-19

    申请人： Hans-Georg Engel ,  Sinan Kazan ,  Frank-Werner Mohn ,  Martin Wenz ,  Richard Zimmer

    发明人： Hans-Georg Engel ,  Sinan Kazan ,  Frank-Werner Mohn ,  Martin Wenz ,  Richard Zimmer

    IPC分类号： G06F17/00

    CPC分类号： B60T8/172 ,  B60T2210/12

    摘要： The present invention relates to a method for determining a friction coefficient value (Fμ) which represents the coefficient of friction present between the underlying surface and a vehicle tire. For this purpose, a wheel slip value (λij) is determined for at least one vehicle wheel, said value (λij) describing the wheel slip present at this vehicle wheel. The friction coefficient value (Fμ) is determined as a function of this wheel slip value (λij). For this purpose, during a predefined operating state of the vehicle wheel slip values (λij) are determined at various times, in particular successive times. The frequency distribution of values is determined for these wheel slip values (λij) or for axle-related slip values (λVA and λHA) which are determined as a function of these wheel slip values (λij). The friction coefficient value (Fμ) is determined by evaluating this frequency distribution of values.

    摘要翻译： 本发明涉及一种用于确定摩擦系数值（Fmu）的方法，该摩擦系数值表示在下表面和车辆轮胎之间存在的摩擦系数。 为此，为至少一个车轮确定车轮滑移值（lambdaij），描述在该车轮上存在的车轮滑动的所述值（lambdaij）。 摩擦系数值（Fmu）被确定为该车轮滑移值（lambdaij）的函数。 为此，在车轮滑移值（lambdaij）的预定操作状态期间，在不同时间，特别是连续时间被确定。 对于这些车轮滑移值（lambdaij）或与轴相关的滑移值（λ和＆lt;＆lt;＆gt; HA＆lt;＆gt;）确定值的频率分布，其被确定为 这些轮滑值（lambdaij）。 通过评估该值的频率分布来确定摩擦系数值（Fmu）。