FreDy - An electric vehicle with intelligent chassis-control systems

The present paper focuses on the model-based development of an electric vehicle, FreDy, equipped with direct drives of the rear axle that are positioned close to the wheels. FreDy combines electric traction with an intelligent chassis consisting of four independent active wheel modules and is a fully active electrical vehicle. Using a hierarchically structured vehicle management the research vehicle FreDy enables motoring that is optimized with regard as well to energy consumption as to driving dynamics and driving safety. Conception and realization of the vehicle are performed by means of a structured procedure in a model-based, hierarchical mechatronic approach and will be detailed in the following.