Supercharging

We develop supercharging systems to make engines more economical and cleaner

Supercharging is the key technology for cutting CO2 and exhaust emissions – from diesel and, increasingly, also from spark-ignition engines. Our experts can provide you with support from concept formulation to design and prototype construction and from testing to algorithm development and calibration. Beyond this, we are constantly at work on developing innovative technologies in these fields.

Configuration and design

Proceeding from engine data, we configure application-specific rotors and develop the spirals that go with them. Our experts turn them into flexibly configured structures as the basis for quickly generating different variants and optimizing package. Our Prototype Construction department procures and produces complete turbochargers and adapts new sub-solutions.

Simulation / computation

The increasing complexity of supercharging systems is demanding advances in simulation and computation – this is where the particular focus is on studying transient processes and thermal behavior. The work that goes on at IAV in the various simulation disciplines (1D, 3D-CFD, thermomechanics and NVH) takes place interactively and based on comparisons with test results.
To enhance efficiency and the quality of results, we use and develop optimization methods and employ extensive databases containing maps and supercharging systems.

Intermeshing computation and testing

Our aim is to create supercharging systems that provide long life cycles and generate only low levels of noise. To do this, we extensively intermesh computation and testing on the test bench. This way, we can also quickly find answers to complex matters – such as acoustic abnormalities or wear. We have several test benches for examining supercharging systems: On our turbocharger test bench, for instance we can also measure maps with the compressor circuit closed (closed loop), simulate high-pressure exhaust-gas turbochargers and measure them at ambient temperatures down to -10 °C. When measuring exhaust-gas turbochargers on conventional test benches, for example, we use optical measurement equipment for comparing results with thermomechanical computations.