Tribological performance of friction braking systems for minimised brake emission

与旨在减少柴油机颗粒物排放的大规模努力相比，摩擦制动器的磨损排放受到的关注要少得多。替代的电动动力系统车辆通常采用某种形式的再生制动系统，但它们将继续需要摩擦制动器，用于再生系统失效或效率较低的条件，例如当车辆在交通灯处停下来时。因此，摩擦制动器的磨损排放，以及轮胎/道路相互作用的排放，很可能在未来几年内成为道路运输大气颗粒物污染的主要来源。随着摩擦材料发展的出现，有必要充分了解当前和未来摩擦材料与新材料技术在汽车，高速铁路，该项目将建立在我们正在进行的研究基础上，旨在深入了解制动片和制动盘之间的相互作用，特别是磨损和腐蚀导致不同性质和特征的颗粒排放。这将提供关于颗粒产生机制及其特性的知识，并可以提供有价值的指导方针，以最大限度地减少摩擦制动器的颗粒排放，同时减少车辆的簧下质量，从而减少CO2排放。

Compared to the massive effort aimed at reducing diesel particulate emissions, wear emissions from friction brakes have received far less attention. The alternative electric powertrain vehicles usually employ some form of regenerative braking system but they will continue to require friction brakes for conditions where the regenerative system fails or is less effective such as when the vehicle comes to rest at traffic lights. It is likely therefore that wear emissions from friction brakes, alongside those from tyre/road interactions, will become the major source of atmospheric particulate pollution from road transport in the years ahead.With the emergence of friction materials development, there is a need to fully understand brake pad/disk interactions between current and future friction materials and new materials technology for applications in automotive, high speed rail, airspace, etc. This project will build on our ongoing research and will aim to provide an in-depth understanding of the interactions between the brake pads and disks leading to particle emission with different natures and characteristics as a result of wear and corrosion in particular. This would provide a knowledge on the mechanisms of particles generation and their characteristics and could present valuable guidelines to minimize particulate emissions from friction brakes whilst reducing the unsprung mass of the vehicle and hence reducing CO2 emissions.