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Method and system for locating an unbalanced wheel of a vehicle, a system for locating the unbalanced wheel, electronic control unit and storage medium

机译：用于定位车辆不平衡车轮的方法和系统，用于定位不平衡车轮的系统，电子控制单元和存储介质

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摘要

Method for locating an unbalance of a wheel of a vehicle (100) using a vibration signal (G (ti)) as provided by at least one vibration sensor (200) and wheel rotation angles (φ (t) as determined by corresponding wheel rotation angle sensors ( 401 ÷ 404), the method including the following steps: S1 measuring the vibration signal (G (ti)) at first sampling times (t), which is a sum of the vibration signals corresponding to wheel imbalances as they occur at the location of the electronic control unit ECU (100) are perceived and have amplitudes, and simultaneous measurement of the wheel rotation angle φ (t) for each wheel (n) at second sampling times (t); S2 linear interpolation of the wheel rotation angles (φ (t)) at times (t ) so that the interpolated wheel rotation angles (φ (t)) correspond to each scan of the vibration signal (G (t)); S5 multiply the vibration signal (G (t)) by the sine and cosine of the interpolation rten wheel rotation angle (φ (t) for each wheel (n); S6 calculate the vibration amplitude (B '(i)) S7 calculate the mean (µ) and the standard deviation (σ) of the vibration amplitude (B' (i)); S8 compare the value of each standard deviation (σ) calculated for the predetermined number (N) of iterations or the predetermined duration (D) with a predetermined threshold of the standard deviation (σ); for each wheel, after which the imbalance of each wheel is assessed on the basis of the standard deviation itself and / or the mean value of the standard deviation of the vibration amplitude.

机译：利用由至少一个振动传感器（200）提供的振动信号（G（ti））和由相应的车轮旋转确定的车轮旋转角度（φ（t））来定位车辆（100）的车轮不平衡的方法角传感器（401÷404），该方法包括以下步骤：S1在第一采样时间（t）上测量振动信号（G（ti）），该信号是与车轮失衡对应的振动信号的总和电子控制单元ECU（100）的位置被感知并具有振幅，并在第二采样时间（t）同时测量每个车轮（n）的车轮旋转角度φ（t）; S2车轮旋转的线性插值时间（t）的角度（φ（t）），以使内插的车轮旋转角度（φ（t））对应于振动信号（G（t））的每次扫描; S5将振动信号（G（t））相乘）通过插值的正弦和余弦rten每个车轮（n）的车轮旋转角度（φ（t））; S6计算t振动幅度（B′（i））S7计算振动幅度（B′（i））的平均值（μ）和标准偏差（σ）。 S8将针对预定次数（N）的迭代或预定持续时间（D）计算出的每个标准偏差（σ）的值与所述标准偏差（σ）的预定阈值进行比较;对于每个车轮，之后根据标准偏差本身和/或振动幅度的标准偏差的平均值来评估每个车轮的不平衡。

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公开/公告号DE102019215581A1

专利类型
公开/公告日2020-04-16

原文格式PDF
申请/专利权人 CONTINENTAL AUTOMOTIVE GMBH;
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申请/专利号DE201910215581
发明设计人 ANDREI-STEFAN CIMPONERIU;GABRIEL MARIN;ADRIAN FLORIN STANCIU;ZOLTAN LORINCZ;LAURENTIU STANCALIE;GABRIEL GORON;
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申请日2019-10-10
分类号G01M1/28;G01M17/02;
国家 DE
入库时间 2022-08-21 11:01:09

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