Germany develops high-power electric transmission system

The German research and development high-power electric transmission component system "HV-ModAL" research project aims to further improve the power of electric vehicle powertrain. In the next three years, HV-ModAL hopes to create a powertrain modular system toolbox suitable for all types of electric vehicles produced by different manufacturers.

Ten partners, including Infineon, from all aspects of the automotive industry chain and the scientific community participated in the research project to further consolidate the German automotive industry in electric vehicles, including pure electric vehicles, external rechargeable hybrid vehicles and Small trucks - the global market position in the field. Today's electric cars have a typical power of 125 kilowatts and a range of 150 kilometers. The electric vehicle studied by the research project has a power range of 50 to 250 kilowatts and a longer range. HV-ModAL is the German acronym for "Modular Powertrain Topology for High-Power Electric Vehicles."

In the first phase of the project, HV-ModAL research partners are committed to reaching a consensus on the universal power transmission platform for the entire automotive industry chain. They will then conduct extensive research into the concepts and components to determine the components that are perfectly coordinated with each other for this type of power transmission platform.

This study involves many components, including high power transmissions up to 250 kW and high voltage IGBT power modules up to 900V, modular multi-level DC/DC converters, batteries with integrated DC/DC converters, and System components for batteries above 600V. In order to describe and define these components and then optimize them so that they coordinate with each other, project partners are building a universal flexible system simulation model for different electric vehicle platforms. In order to verify the theoretical results, the project team will use the optimized components and architecture to create demonstration models and conduct experiments. Based on the results obtained, the HV-ModAL system design will be completed, and finally a modular system toolbox suitable for the widest possible range of electric drive types will be created.

The project’s budget is around 7.5 million euros. About 50% of this will be financed by the German Federal Ministry of Education and Research (BMBF). This project will end on December 31, 2017.

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