The coefficient of friction (COF) is one of the most important parameters to evaluate the performance of a brake system. To design proper brake systems, it is important to know the COF when estimating the brake force and resulting torque. It is challenging to simulate the COF since friction in disc brakes is a complex phenomenon that depends on several parameters such as sliding velocity, contact pressure, materials, and temperatures, etc. There is a lack of studies found in the literature focusing on simulation of the COF for a full brake system based on tribometer material characterization. The aim of this work is therefore to investigate the possibility to use a finite element analysis (FEA) approach combined with a COF pv-map to compute the global COF of a disc brake system. The local COF is determined from a pv-map for each local sliding velocity and contact pressure determined by the FEA. Knowing the local COF, the braking force of the entire brake system and the global COF can be evaluated. Results obtained by the simulation are compared with dyno bench test of the same brake system to investigate the validity of the simulation approach. Results show that the simulation is perfectly in line with the experimental measurements in terms of in-stop COF development, but slightly higher with a positive offset for every braking.

摩擦系数（COF）是评估制动系统性能的最重要参数之一。为了设计合适的制动系统，重要的是在估计制动力和所产生的扭矩时了解COF。由于盘式制动器中的摩擦是一个复杂的现象，它取决于滑动速度，接触压力，材料和温度等几个参数，因此模拟COF具有挑战性。在文献中缺乏针对模拟CIF的研究。基于摩擦计材料特性的全制动系统的COF。因此，这项工作的目的是研究将有限元分析（FEA）方法与COF pv结合使用的可能性-map计算盘式制动器系统的整体COF。对于每个由FEA确定的局部滑动速度和接触压力，从pv映射确定局部COF 。知道了局部COF，就可以评估整个制动系统的制动力和全局COF。通过仿真获得的结果与同一制动系统的dyno台架试验进行比较，以研究仿真方法的有效性。结果表明，就停止COF的发展而言，该模拟与实验测量完全吻合，但是对于每次制动，其正偏移量都会稍高一些。