Abstract:

Simulation models are becoming more important in automotive development, particularly in the early stages of verification and validation. There is currently no standardised simulation framework for achieving a seamless transition in the conception, implementation, and integration of complex system simulations, according to the present state-of-the-art. This paper presents a reference simulation model architecture for electric vehicles, which is offered as a standard for closed-loop simulations in real-time and non-real-time. The proposed Electric Modeling Architecture (EleMA) is intended as an extension of standardized model exchange formats by defining standardized, functional and signal-based interfaces of electric vehicle simulation models. It is designed independently of the utilized tool chain or exchange format of the simulation model components and enables their functional compatibility and exchangeability. The EleMA reference architecture is based on an approach that utilizes systems engineering methodologies. EleMA provides all users a reference model including the contained components, a formalized description in the form of use case diagrams and a definition of the variant-independent component interfaces for each individual component.  It is designed as independent of the used tool or exchange format of the simulation model component and enables functional compatibility and exchangeability of simulation model components. The main targets are the reduction of development efforts and improvement of development processes in context of verification and validation activities using closed-loop simulations. In the future, an extension of the standard to include additional powertrain topologies and the specification of parameter interfaces is intended.