eBoosT

Highly efficient, production-oriented modular drive system for the electrification of heavy commercial vehicles

The aim of the eBoosT joint project is to satisfy the sometimes very divergent customer requirements in the truck sector with a competitive electric drive concept. A highly integrated, highly efficient drive unit designed for continuous operation is optimally combined with a second boost drive unit designed for peak loads.

The main objective of this sub-project is to research, develop and implement a methodology for designing two suitable drive units for the primary and boost drive of an innovative eBoosT drive axle. For this purpose, a highly efficient permanent-magnet synchronous machine for continuous operation and an asynchronous machine optimized for peak loads must be designed. Furthermore, the variety of variants for different usage scenarios is realized via boost drives adapted to the applications. In addition, an efficiency-optimized, adaptive operating strategy for coordination between the two drive units will be developed and tested on a prototype axis on the test bench under various operating conditions.

Project duration: 01.08.2022 to 31.07.2025

• Daimler Truck AG, Mercedes-Benz plant Kassel
• Department of Mechatronics with a focus on vehicles, Prof. Dr.-Ing. Michael Fister, University of Kassel
• Department of Vehicle Systems and Fundamentals of Electrical Engineering, Prof. Dr. rer. nat. Ludwig Brabetz, University of Kassel

based on a resolution
of the German Bundestag