ECOPOWER
BRAKE
Brake technology based on an eddy current brake that enables fine dust-free, wear-free and maintenance-free braking.
Your contact persons
Nadia Bleher
Research Coordinator, DLR
Dr.-Ing. Lars Heber
Advanced Development E/E Architecture, Daimler Truck
About the project
The majority of harmful particulate matter emissions in traffic are not caused by the combustion engine, but by wear and tear from brakes and tires. Even in vehicles with an electrified drivetrain, a mechanical friction brake that emits particulate matter is still currently used, as the braking power provided by recuperation is insufficient.
This means that the problem of particulate matter remains a pressing issue, even with the increasing electrification of the transport sector, which the EU Commission has addressed with strict particulate matter limits in the EURO 7 standard. This is where the ECOPOWERBRAKE project comes in. The hybrid brake developed by DLR together with partners - including from ARENA2036 - has so far more than tripled the power density of conventional eddy current brakes to 8 kW/kg. It also utilizes the magnetic attraction force between the rotor and stator to brake to a standstill at low speeds through friction without the use of a conventional friction brake. This reduces wear on the hybrid brake by 90% compared to a conventional friction brake. The encapsulated design ensures that no fine dust emissions occur during operation. In addition, the hybrid brake is designed so that it does not need to be serviced or replaced during the vehicle's entire life cycle. In ARENA2036, the focus is on manufacturing methods based on laser welding and demonstration. The work within ARENA2036 focuses in particular on the development of innovative manufacturing processes, for example through the use of laser welding technologies, as well as the prototypical demonstration of the results.
Aims of the project
The main objective of the collaboration between DLR and Daimler Truck AG is to raise the maturity level of the technology to TRL 5 and thus prepare the brake technology for installation in a real demonstrator vehicle. In addition to adapting the hybrid brake to the geometric conditions of the installation space, interfaces to the vehicle must also be defined. This includes the provision of the energy supply and cooling of the hybrid brake as well as the exchange of component and vehicle data. The ECOPOWERBRAKE project is also coordinating the requirements in order to define technical standards and bring the technology closer to market launch.
Further information on the project can be found here.
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