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EB2020-IBC-011

Abstract

Dr.-Ing. Sebastian Gramstat, Audi AG, GERMANY

Mr. Matteo Mazzoni, Brembo S.p.A., ITALY

Mr. Beniamin Szewczyk, Brembo S.p.A., ITALY

Dr.-Ing. Stefan Heimann, Audi AG, GERMANY

Mr. Martin Angel, Audi AG, GERMANY


The EVC-1000 research project of the HORIZON 2020 funding platform works on solutions for future generation of battery electric vehicles (BEV) to enhance their efficiency, performance and mileage. Amongst others, a special focus is given to the brake system of BEV.

Beside a brief description of the project (including project goals), a brake-by-wire (BBW) approach is presented and described for those BEV. This includes the general layout of the system as well as the technical and technological description.

The latter is oriented on the defined requirements of a demonstrator vehicle, which allows also to derive the relevant specifications. As a result, it is intended to find an appropriate dimensioning of the brake system (including the foundation brake) for BEV to avoid over-sized components. Another focus deals with the integration of the BBW.

Finally, results of some preliminary vehicle road testing activities are introduced to create a base for benchmark analyses.

EuroBrake 2021

BCE

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EB2020-IBC-006

Video + Slides

Abstract

Dr.-Ing. Sebastian Gramstat, AUDI AG, GERMANY

Dr.-Ing. Stefan Heimann, AUDI AG, GERMANY

Mr. Christopher Hantschke, AUDI AG, GERMANY

Mr. Paul Linhoff, Continental Teves AG & Co. oHG, GERMANY

Mr. Sebastian Müller, Continental Teves AG & Co. oHG, GERMANY

Mr. Oliver Biewendt, Volkswagen AG, GERMANY

Mr. Michael Lingg, Volkswagen AG, GERMANY


Electric mobility is becoming more and more popular and leads to a significant increase of development efforts for next generations of battery electric vehicles (BEV). While the first development approaches represented just a solution transfer from vehicles with integrated combustion engines (ICE) to BEV, more sophisticated methods are expected to be considered in the future.

Within the European-funded project ACHILES, such a new approach is used to optimize amongst others the wheel brake for BEVs.

In a first step, the general requirements for vehicle dynamics are elaborated, what also includes the definition of use cases. As an output, requirements and limitations of electric powertrains are given. It means in detail the consideration of the battery pack, the electric motor plus inverter and also the electric energy supply.

Those analyses allow as a next step to derive the requirements for the brake system. Since the brake represents a safety-relevant component, vehicle safety requirements are investigated additionally.

Finally, it is discussed which requirements for the electric / electronic (E/E) components exist and how the brake system and the powertrain can be implemented into the E/E architecture.

EuroBrake 2021

BCE

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Dr.-Ing. Stefan Heimann

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18 Mar 2021