Measurement on Friction Coefficients of Tire Grounding Surface in Arbitrary Directions under High-Load
Measurement on Friction Coefficients of Tire Grounding Surface in Arbitrary Directions under High-Load
复制标题
高负载下轮胎接地面任意方向摩擦系数的测量
DOI：
10.1007/s11340-017-0309-8
复制
发表时间：
2017
影响因子：
2.4
通讯作者：
Tachiya H.
中科院分区：
文献类型：
--
作者：
Ise T.;Higuchi M.;Suzuki Y.;Tachiya H.
为了测量汽车行驶时轮胎接地表面的摩擦系数，提出了一种简单的悬臂式触觉传感器，该传感器可以同时检测施加在传感部件上的垂直载荷和摩擦力以及摩擦力的方向。本研究将该传感器安装在轮胎上，证实该传感器可以测量轮胎接地面的摩擦系数。为此，本研究中的测量是使用传感器在与普通汽车在任意方向行驶的负载相似的情况下进行的。为了在任意方向上进行高载荷下的实验，我们研制了一种并联机构式轮胎驱动装置。研制的装置可以在任意方向上对轮胎施加高载荷，并可以利用传感器测量垂直载荷、摩擦力和施加在轮胎上的摩擦力的方向。因此，可以通过将传感器的输出与驱动装置的输出进行比较来验证所提出的传感器的测量精度。通过研究，明确了传感器的测量值受轮胎变形的影响，并提出了修正轮胎变形影响的方法。通过将所提出的修正方法引入到传感器的测量中，证实了在实际的高负载条件下，能够以足够的精度测量各种表面的摩擦系数。
In order to measure friction coefficients of tire grounding surfaces in car running, a simple cantilever-type tactile sensor that can detect the vertical load and friction force applied to the sensing part as well as direction of the friction force, simultaneously, has been proposed. The present study equips the proposed sensor to a tire and confirms that the sensor can measure the friction coefficient of the tire grounding surface. For this purpose, measurements in this study were conducted using a sensor under a similar load as that of a common automobile travelling in an arbitrary direction. In order to perform the experiments under a high load in an arbitrary direction, we developed a parallel mechanism-type tire-driving device. The developed device can apply a high load to the tire in an arbitrary direction and can measure the vertical load, friction force, and the direction of the friction force applied to the tire involving the sensor. Thus, the measurement accuracy of the proposed sensor can be verified by comparing the output of the sensor to that of the driving device. As a result of this study, we clarified that the measurement values of the sensor are affected by the deformation of the tire, and proposed a method for correcting the effect of the tire deformation. By introducing the proposed correction method to the measurement of the sensor, it was confirmed that the friction coefficients of various surfaces can be measured with sufficient accuracy under a practical high-load condition.