FKFS Veranstaltungen

2025 Stuttgart International Symposium
on Automotive and Engine Technology

3. - 4. Juli 2025

Session: Vehicle Technology II | | 15:30 - 16:00

Brake Emission Engineering Approaches and Outlook on Upcoming Development Tasks

Christof Danner, AVL List GmbH

To comply with EU7 at a certain point Brake systems of newly registrated passenger cars and light commercial vehicles up to 3,5 tons must fulfil the upcoming Brake Emission certification limits of 7 mg/km/vehicle.Based on a wide range of Brake Emission Measurements we can say that almost no brake system is fulfilling the limit now – at least without taking into account the reduction factors for recuperation.The basis for these activities, the GTR 24, is still under construction, getting more and more complex. The possibility to create a vehicle specific FBSC is already included; first approaches for procedures uzilizing Brake Dust Filters as well, passive and active systems are taken into account - even if far from some final definitions; Classifications for spare & aftermarket components are done - next steps will be ISC (In Service Conformity) and OBD (On Board Diagnosis), RDE is set as well, but still a while to go. The actual challenge especially for already developed vehicles is, to reach a level of emission clearly below legal levels to be sure to reach certification even knowing about actual tolerances within measurements & laboratories.Brake systems have been optimized for decades now for mainly performance and comfort, but now legal requirements are acting as a game changer and huge efforts will be necessary to fulfil the new and the traditional tasks, which will cause new modelling & testing approaches to understand the full Vehicle Picture with all its attributes.