Braking forces occurring during emergency brake applications of passenger trains are generated by disc brake units. The acting friction forces depend on the frictional properties between disc and brake pad and are influenced by relative velocity, temperatures and normal pressure of the contacting surfaces. In this work a mathematical model is developed which aims to link these influencing variables to the instantaneous acting friction coefficient in order to include the characteristic behavior of friction forces in the calculation of longitudinal dynamics of railway vehicles. The model is identified by the use of data recorded on a full-scale dynamometer test rig and verified regarding the estimation of the brake distance.

在旅客列车紧急制动过程中产生的制动力是由盘式制动单元产生的。作用的摩擦力取决于制动盘和制动衬块之间的摩擦特性，并受接触表面的相对速度，温度和法向压力影响。在这项工作中，建立了一个数学模型，旨在将这些影响变量与瞬时作用摩擦系数联系起来，以便在铁路车辆纵向动力学计算中包括摩擦力的特征行为。该模型通过使用记录在满刻度测功机上的数据进行识别，并就制动距离的估计进行验证。