OEMs and suppliers are working intensively to reduce fuel consumption and CO2 emissions, and to develop new vehicle models with hybrid and pure electric drive concepts. Exact knowledge of battery technology and electric drives, and of how they interaction in a network of complex control systems, has become a core competence that will help decide the success or failure of new electric vehicles on the market. One proven method of trying out new technologies and concepts under realistic conditions is rapid control prototyping (RCP). Supported by powerful hardware and the model-based development process with MATLAB/Simulink, developers can very quickly find out, with very little effort, whether an approach promises to be successful. They do this in early development phases by replacing ECUs that are not available yet with RCP development platforms based on powerful embedded processors and on operating systems that ensure real-time behavior, fast boot-up, and reliable, autonomous operation in the field. As electrics/electronics will play an increasingly important role in the future transition from combustion engines to electric drives, designing optimum E/E architectures will be a more complex task. In addition to handling communication and signal distribution, the ECU network will perform a larger proportion of the energy management. New ECUs such as the battery management system and the electric motor ECU will be added, and networking will also intensify, with control functions distributed across multiple ECUs. These trends are putting pressure on the current development tools. Thus, in this contribution a new system approach with dSPACE MicroAutoBox II for RCP is introduced. It is based on a new system architecture and offers full application coverage for hybrid and full electric vehicle developments due to its highly flexible FPGA technology and embedded PC extendibility.
Flexibles Rapid Control Prototyping für die Steuerung von Hybrid- und Elektrofahrzeugen
2012
11 Seiten, 5 Bilder, 1 Tabelle, 4 Quellen
Conference paper
German
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