Compressor module for the cathode gas supply of fuel cell vehicles

The basic focus of the project is the research and development of an electrically-driven turbocharger for a fuel cell unit used in a vehicle. The main aim is to develop a turbocharger with less mass, volume and cost, and through adapted parameters, to raise the degree of efficiency of the fuel cell unit and thus the efficiency of the system, particularly in the area of the partial load range.

To achieve these goals the following priorities were identified, which will be developed further within the project:

• Thermodynamics of the turbocharger
• Electric motor and its control (frequency converter)
• Oil-free storage

The project has three phases:

Phase 1: Development and testing of an evaluation model A on the component test bench

Phase 2: Development and testing of an evaluation model B on the component test bench

Phase 3: Testing and optimisation of evaluation model B in a fuel cell laboratory system and fuel cell unit and specification of the requirements to an evaluation model C

The overall aim of the project is incorporated in the fuel cell activities of the Volkswagen Group. The results flow into the ongoing work of the company’s research arm of Volkswagen AG. Furthermore through the development of the necessary competence and experience at BorgWarner Turbo Systems Engineering GmbH, the foundation will be laid for the development of the relevant fuel cell components in terms of the technology and cost requirements of the automotive industry.