Research

Simulation and System Design

The development and parameterisation of thermal and electrical models is, on the one hand, the basis for assessing the potential of component innovations at material and cell level and, on the other hand, an important tool for optimal system design. Both applications are the focus of the chair, whereby the horizon of consideration explicitly includes the necessary periphery of a battery system (current sensor, contactors, etc.), as well as procedures for parameter identification on existing systems.

Diagnosis and Impedance Spectroscopy

The application of diagnostic algorithms in a commercial system and everyday conditions requires an adaptation of laboratory methods established at cell level. Transferring these to system level, validating them and demonstrating the system benefits or, conversely, deriving requirements for sensors and data acquisition to achieve diagnostic quality is another focus topic. Impedance spectroscopy is a method that seems particularly promising for use in applications. The focus here is on the system level and the consideration of the boundary conditions for operation in the application.

Model-based Systems Engineering

Through the use of models, chains of effects and sensitivities can be made visible. Likewise, the traceability of requirements in the system specification is ensured and the effects of an adaptation of the architecture can be directly indicated. Therefore, model-based systems engineering is helpful to derive component requirements and, conversely, to be able to quantify system improvements through component innovations, thus making a significant contribution to collaboration in BayBatt.