ELF++ demonstrator vehicle for the evaluation of an assisted steering system by wheel-selective drives. (Photo: e²-Lenk project team)
In conventional vehicles, the combustion engine does not only accelerate the car, but also supplies onboard auxiliary systems with energy, for e.g. assisted steering. In electric vehicles, this energy comes from the battery, while range is reduced. A novel concept for an intelligent assisted steering system with optimal energy efficiency for electric vehicles has now been developed by researchers of KIT and Schaeffler AG. The assisted steering function is integrated into the drive train by using an intelligent control concept for the drive torques of the individual wheels and a suitable chassis geometry. A conventional assisted steering system is no longer required. In this way, weight, energy consumption, and costs are reduced, while the range is increased.