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    • 2. 发明申请
    • METHOD AND DEVICE FOR DETERMINING A MAXIMUM COEFFICIENT OF FRICTION BETWEEN A TIRE AND AN UNDERLYING SURFACE
    • 用于确定轮胎和下一个表面之间的摩擦系数的最大系数的方法和装置
    • US20110166761A1
    • 2011-07-07
    • US12986725
    • 2011-01-07
    • Stefan KammannLothar Keller
    • Stefan KammannLothar Keller
    • G06F19/00G01N19/02
    • G01N19/02G01M17/02
    • A method for determining a maximum coefficient of friction μmax between a tire and an underlying surface entails empirically determining a reference curve μref(S) of a coefficient of friction μref as a function of a slip S between the tire and an underlying reference surface, determining a first momentary slip S1 for the tire and a first momentary coefficient of friction μ1 between the tire and the underlying surface at a first instant t1, determining a second momentary slip S2 for the tire and a second momentary coefficient of friction μ2 between the tire and the underlying surface at a second instant t2, computing a slope of the curve μ(S) of the coefficient of friction μ as a function of slip S, and computing the maximum coefficient of friction μmax between the tire and the underlying surface by transforming the reference curve μref(S) on the basis of the slope of the curve μ(S). With the aid of the vehicle devices present in any event in modern motor vehicles it is possible to use the information provided by the vehicle devices to be able to compute the momentary slip S and the momentary coefficient of friction μ. By comparing the momentary curve μ(S) that can be determined from the measuring points (μ1; S1) and (μ2; S2) with the empirically determined reference curve μref(S) it is possible using a suitable mathematical method to very accurately estimate, in particular interpolate, the maximum coefficient of friction μmax for the momentary material pairing of the tire with the underlying surface.
    • 用于确定轮胎和下面的表面之间的最大摩擦系数μmax的方法必须经验地确定摩擦系数μref的参考曲线μref(S)作为轮胎和下面的参考表面之间的滑差S的函数,确定 轮胎的第一瞬时滑动S1和在第一时刻t1的轮胎和下面的表面之间的第一瞬时摩擦系数μ1,确定轮胎的第二瞬时滑移S2和轮胎和轮胎之间的第二瞬时摩擦系数μ2 在第二时刻t2的下面的表面,计算作为滑移S的函数的摩擦系数μ的曲线μ(S)的斜率,并且通过将轮胎和下面的表面之间的最大摩擦系数μmax 基于曲线μ(S)的斜率的参考曲线μref(S)。 借助于现代汽车中存在的车辆装置,可以使用由车辆装置提供的信息来计算瞬时滑移S和瞬时摩擦系数μ。 通过比较经验确定的参考曲线μref(S)可从测量点(μ1; S1)和(μ2; S2)确定的瞬时曲线μ(S),可以使用合适的数学方法非常准确地估计 ,特别是内插,轮胎与下面的表面的瞬时材料配对的最大摩擦系数μmax。
    • 3. 发明授权
    • Method for determining the profile depth of a tire and/or a tire characteristic, and a tire
    • 用于确定轮胎的轮廓深度和/或轮胎特性的方法以及轮胎
    • US08240198B2
    • 2012-08-14
    • US12670745
    • 2008-07-23
    • Kai SchadeAndreas HeiseStefan Kammann
    • Kai SchadeAndreas HeiseStefan Kammann
    • G01M17/02
    • G01B7/26B60C2019/005Y10T152/10027
    • A method used for determining a profile depth or wear on a tread of a tire of a vehicle, and/or a tire characteristic, a magnetic field being detected by a magnetic field sensor disposed in the interior of the tire, particularly in the area of the tread on the tire interior, or at a distance from the tire, particularly in the area of a wheel housing or a wheel well of the vehicle, the magnetic field being transmitted or changed by at least one indicator element disposed in the tread on the tire exterior. The current wear state of the tread and/or the tire characteristic, particularly a tire type and/or permissible top speed, is determined based on output signals of the magnetic field sensor. The invention further relates to tires.
    • 一种用于确定车辆轮胎的胎面上的轮廓深度或磨损的方法和/或轮胎特性,由设置在轮胎内部的磁场传感器检测的磁场,特别是在 轮胎内部的胎面,或与轮胎相距一定距离,特别是在车辆车轮或车轮的车轮区域的区域中,磁场被设置在胎面上的至少一个指示元件传递或改变 轮胎外观。 基于磁场传感器的输出信号确定胎面和/或轮胎特性的当前磨损状态,特别是轮胎类型和/或允许的最高速度。 本发明还涉及轮胎。
    • 5. 发明授权
    • Method and apparatus for determining the mileage of a tire
    • 用于确定轮胎里程的方法和装置
    • US09050865B2
    • 2015-06-09
    • US12986712
    • 2011-01-07
    • Stefan Kammann
    • Stefan Kammann
    • G01B11/14E01C23/00G01N19/02B60C23/04G01C22/02
    • B60C23/0408B60C2019/004G01C22/02
    • A method and an apparatus for determining the mileage of a tire, include measuring a first current mileage over a limited period a first time, measuring a second current mileage over a limited period a second time, providing a measurement-free rest period between the first measurement and the second measurement, and estimating the mileage during the rest period on the basis of the first current mileage and/or the second current mileage. In addition, the method is repeated, with the already performed second measurement replacing the first measurement. Since a supply of power is not needed or at least can be significantly reduced during the rest period, the power requirement for mileage determination during the life of the tire can be significantly reduced, which allows simplified supply of power for mileage determination.
    • 一种用于确定轮胎的里程的方法和装置,包括在第一次有限的时间段内测量第一当前里程,在第二时间内在有限的时间段内测量第二当前里程,从而在第一 测量和第二测量,并且基于第一当前里程和/或第二当前里程在休息期间估计里程。 此外,重复该方法,其中已经执行的第二测量代替第一测量。 由于不需要供电,或至少在休息期间可以大幅减少功率,所以可以显着降低在轮胎使用寿命期间的里程确定功率要求,从而简化了里程确定的功率供给。
    • 7. 发明申请
    • TIRE MODULE HAVING A PIEZO-SENSITIVE SENSOR
    • 具有感应敏感传感器的轮胎模块
    • US20110113876A1
    • 2011-05-19
    • US12674334
    • 2008-08-27
    • Stefan Kammann
    • Stefan Kammann
    • B60C23/04
    • B60C23/041B60C23/064
    • A tire module for detecting tire condition variables, the module being mounted on an inside of a tire in an area deformed during tread shuffle and including at least one carrier, on which at least one electronic component is disposed, and at least one piezo-sensitive sensor, the piezo-sensitive sensor being disposed such that it is at least partially deformed during deformation of the tire during tread shuffle, and the deformation of the piezo-sensitive sensor being used to determine at least one shuffle variable, and the tire module including at least one battery for at least partially supplying energy to the at least one electronic component, and to use of the tire module.
    • 一种用于检测轮胎状况变量的轮胎模块,所述模块安装在轮胎内侧的胎面洗牌期间变形的区域中,并且包括至少一个载体,至少一个电子部件设置在所述载体上,以及至少一个压电敏感 传感器,压电敏感传感器被布置成使得其在胎面洗牌期间在轮胎变形期间至少部分变形,并且压电传感器的变形被用于确定至少一个洗牌变量,并且轮胎模块包括 用于至少部分地向所述至少一个电子部件提供能量的至少一个电池,以及所述轮胎模块的使用。