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Technical University of Munich
Technical University of Munich

Infrastructure & Methods

The Institute of Sustainable Mobile Powertrains is located at Schragenhofstraße 31 in the west of Munich. The site comprises a spacious powertrain laboratory with office spaces, seminar rooms, testing facilities, and a well-equipped prototyping workshop. The buildings are easily accessible by tram, subway, bicycle, and car, and are situated in the Kapuzinerhölzl, a green island in the middle of the city, between the Nymphenburg Palace Park, the Botanical Garden, and the Hartmannshofer Park.

The powertrain laboratory covers an area of over 1000 m² and includes 13 test rigs in 9 separate test cells with separate control rooms, as well as additional areas for component testing. The test facilities are inaccessible to the public, ensuring the protection of sensitive data and prototypes.

Electric machines and internal combustion engines up to a power of 700 kW can be operated at the site. The test facility has a powerful connection to the city's electrical grid rated at 1200 kVA, allowing a wide range of drive systems from small equipment to cars, trucks, and large-scale engines to be tested.

Below is an overview of the available infrastructure. Please contact Christian Hödl for further information on availability and technical details.

Powertrain test rigs

  • Test stand for electric machines up to 250 kW
  • Mobile small-scale test stand for electric machines up to 15 kW
  • Single-cylinder research engine 0.5 l gasoline for transparent engine and thermodynamic engine testing
  • Single-cylinder research engine 0.5 l gasoline for tribology engine testing with glass liner
  • Single-cylinder research engine 1.8 l diesel for transparent engine and thermodynamic engine testing in trucks
  • Single-cylinder research engine 5 l gas for transparent engine and thermodynamic engine testing

Fuel & Gas supply

  • Charge air conditioning up to 10 bar
  • Ventilation system for hydrogen operation in all test cells
  • Natural gas supply up to 250 bar
  • Hydrogen supply up to 350 bar
  • Gas mixing system for custom blends
  • Special fuels (e.g., biogas, methanol, ammonia, e-fuels)
  • Conventional fuels (gasoline, diesel)

Component test rigs for fuel injection technology

  • Diesel fuel injection chamber with optical access
  • Gasoline fuel injection chamber with optical access and cooling system
  • Injection trajectory indicator

Prototyping and mechanical workshop

  • CNC milling machine DMU60 Monoblock, 5-axis
  • Cycle lathe GDW
  • Welding workshop (TIG, MAG, electrodes, autogenous)
  • Sandblasting cabinet
  • FDM printer
  • Electronics workshop
  • Adhesives laboratory
  • Vehicle workshop with lift

Electrical capabilities

  • 2x 630 kVA three-phase power supply
  • 2-channel DC source/sink including battery simulator (1200 V / 1200 A / 400 kW)
  • Power analyser, including Yokogawa WT5000

Exhaust gas measurement technology

  • Condensation particle counter TSI (cut-off 10 nm and 23 nm)
  • Partial flow particle counter Horiba MEXA-2100SPCS - Scanning mobility particle sizer TSI (SMPS) - Differential mobility analyzer TSI (DMA) - FTIR gas analysis (AVL SESAM i60 FT SII and IAV versa 06) - Microsoot sensor AVL
  • Conventional analysis with Horiba MEXA-ONE-D1

Optical measurement technology

  • High-speed color camera (Phantom V2012) and monochrome (HSS6, Phantom V2011, Imager ProX), high-speed IRO's
  • High-speed Nd:YAG laser (10kHz, 9mJ@532nm) and high-speed dye laser
  • Low-speed Nd:YAG laser (10Hz, 420mJ@532nm) and low-speed dye laser
  • PIV system
  • Flash lamps, LED lighting system (developed in-house)
  • Various endoscopes in the visible and UV-optimized range
  • Spectrometer
  • Self-developed optical motors (passenger car, heavy-duty, and high-speed large-scale motor) with full optical access through glass bulbs and side illumination option
  • Cold injection chambers (0.5-4 bar abs., 1-50 bar abs.)

IT Infrastructure @NMA

  • In-house IT cluster, administered by NMA, supported by LRZ
  • 6 CPU workstations with up to 192 cores and 800 GB RAM each
  • 3 GPU workstations with NVIDIA Tesla A100 GPUs and 1 TB RAM
  • More than 300 TB of internal high-speed data storage
  • 10 Gb/s data connection linking test facilities and IT cluster

Software for research and development

  • FEM: Ansys Multiphysics
  • CAD: Catia, Solidworks
  • CFD: Converge, Star CCM+
  • Simulation 0D/1D: GT-Suite, Matlab/Simulink, Python
  • Automation and control: Labview
  • Measurement data processing: AVL Concerto 5
  • Experiment planning and execution: DoE
  • Full access to A2MAC1 vehicle database including teardown reports, photos and cost analyses
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