Joint project mobilEMCopyright: © IRT
Post graduate program "Integrated Energy Supply Modules for Roadbound E-Mobility"
- 01.10.2013 to 30.09.2022
- Hydrogen Technologies
The worldwide changes in energy generation, distribution, and the necessity for sustainable CO2 emissions reduction will have a significant impact on the mobile sector. The scarcity and price increase of crude oil and natural gas, combined with the growing generation of electricity from wind and solar energy, necessitate a stronger electrification of mobile propulsion. Recent technological developments, particularly in hybrid and battery technology, are responding to this trend. However, currently available electrical energy storage for mobile applications is inadequate, especially in terms of their energy and power density.
The post graduate program "Integrated Energy Supply Modules for Roadbound E-Mobility" (mobilEM) aims to explore the fundamental physics of electrochemical storage for mobile propulsion and combine it with novel fuel-operated units, known as range extenders, to increase the driving range. The range extender module enables the energy-efficient dimensioning of the electrical storage, the thermal conditioning of the electrochemical storage system, and the efficient climate control of the vehicle interior. The post graduate program brings together scientists from various interdisciplinary fields, including natural and engineering sciences, to collaboratively address research topics in electrochemistry, heat and mass transfer, thermodynamics, as well as simulation and control sciences. Lecture series and tailored qualification events allow the graduate students to deepen their knowledge in their respective research areas while acquiring essential transdisciplinary foundational knowledge from other involved disciplines.
Project Goals and Methods
The operational strategy of partially or fully electrified vehicles significantly determines their energy efficiency, the lifespan of powertrain components, and the driving comfort. A well-matched and gentle operating mode tailored to the power supply module is essential for high energy efficiency and long lifespan of powertrain components. The main goal of our field of interaction within mobilEM is to develop such operating strategies along with suitable co-simulation and testing platforms.
Building on the results of the completed funding period, operating strategies will be developed to efficiently predict future events by incorporating information from surrounding traffic and infrastructure into the operating strategy. Furthermore, driver interventions should be considered by integrating stochastic sub-models. Instead of standalone model-based predictive controls, networked model-based predictive control is utilized and further developed to consider stochastic influences when calculating the optimal control signal. To achieve holistic operating strategies from individual components to the overall system in the traffic context, existing methods will be equipped with improved real-time models. In this funding period, the derivation of reduced dynamic models of the fuel cell, capable of representing the electrical and thermal characteristics, is the focus. Together with the fellow researchers, the essential properties for energetically optimal operation will be determined and transferred into reduced, real-time capable models. The aim is to validate the developed operating strategies through detailed component models in co-simulations and subsequently test them in innovative test benches under realistic conditions and in real-time in actual vehicles