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 an electric, competitive drive concept. This involves optimally combining a highly integrated drive unit designed for continuous operation with a second boost drive unit designed for peak loads.

The main objective of this sub-project is the research, development and implementation of a methodology for the design of two suitable drive units for the primary and the boost drive of an innovative eBoosT drive axle. For this purpose, on the one hand a highly efficient permanently excited synchronous machine for continuous operation and on the other hand an asynchronous machine optimized for peak loads must be designed. Furthermore, the diversity of variants for different usage scenarios will be realized via boost drives adapted to the application cases. In addition, an efficiency-optimized, adaptive operating strategy for coordination between the two drive units will be developed and tested on a prototype axle 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