Research Profile

Teaching at the Chair of Energy Conversion Systems for Mobile Applications (EMA) includes the internal combustion engine and all related topics, but electromobility and fuel cells are also becoming increasingly important. The name ‘Energy Conversion Systems for Mobile Applications’ (EMA) recognises this.

The Chair has made a name for itself with publicly funded basic research projects (DFG, AiF) and application-orientated industrial research. The intensive co-operation with leading vehicle manufacturers and the supplier industry is particularly noteworthy. The topics of the theses and dissertations are recruited from the co-operation with the industrial companies, which results in very good entry opportunities for the students.

The department is equipped with several engine test benches, a battery simulator, injection test benches, special measurement set-ups and extensive measurement technology. Here is an overview of the most important subject areas:

Petrol / gas / diesel engines

Mixture formation
Water injection
Ignition systems
High-pressure injection
Spray formation
Combustion chamber geometry
Exhaust gas analysis
Particulate filter/particulate filter regeneration
NOx exhaust gas aftertreatment

alternative motor fuels

E-Fuels
Biodiesel, Bioethanol, Pflanzenöl
Biomass to Liquid (2. Generation)
Gas to Liquid (GtL)
Gase: Compressed Natural Gas, Liquefied Natural Gas

Calculation and simulation

Mixture formation/combustion/thermal management
Fuel cell and battery systems
Analysis of hydrogen engines
Analysis of combustion engines
Simulation of variable valve operations
Thermodynamic analysis of energy conversion processes
Flow processes in the combustion chamber
Simulation of injection hydraulics
Simulation of exhaust gas pressure control

Programmes/software:

AVL FIRE, AVL Cruise M, ANSYS CFX, Virtual Lab, GT Power, Converge, Cantera, OPEN Foam

Acoustics

Noise optimisation of the injection system
Evaluation of the acoustics of electric motors
Mapping the structural/radiation behaviour
Vibroacoustic benchmarking
Operating vibration analyses
Analysis and simulation of sound transfer paths
Sound source localisation and analysis with microphone arrays and intensity probes
Sound source localisation with scanning laser vibrometer
Measurement of rotational irregularities
Vibration measurement on rotating parts with optical derotator
Active vibration damping with piezo actuators

Electric drives
Acoustics

Fuel cell
Simulation