We completed the definition of a standard vehicle architecture for modeling and an interface standard. Both were already published on the project website and they are being considered for adoption now by other research projects (CEVOLVER, SELFIE).
This standard comprises all development phases up to tests with physical hardware, where for HiL simulation models are needed. Interfaces and signals between the components are standardized for all development phases.
The integration of a co-simulation platform allows to execute a heterogeneous simulation environment (different simulation software inter-connected with each other).
The benefit is a quite seamless transition from one simulation phase to the other, improved exchange between different development teams, and simplified re-use of simulation models which leads to time saving and reduction of efforts.
The development and implementation, validation of several e-Machine models as well as a lateral and longitudinal vehicle dynamics model using the HiFi-Standard has been completed too.
Several component simulation models based on the new interface standard have been developed using either C-code, SIMULINK, KULI, FMU or xmodel standard. The models comprise several e-Machine models and a vehicle dynamics model. The models are available in a Low Fidelity as well as High Fidelity version to support both Real Time but also Concept Investigation and model calibration in the same system architecture.
Based on the system architecture model a 150% system model has been created in SYNECT as a superposition of all five architectures. To support the tool-chain driven derivation of the individual 100% architectures from the 150% system model a formal Variant Model in SYNECT is required.
A Variant Model comprises all variable aspects of a domain and their options. By Variant Management, the model integration process of the HIFI-ELEMENTS project is simplified. A Variant Configuration that finally characterises a simulation model at vehicle level can be defined by referring to the variants of the Variant Model. Thereby, variant-specific information required by automatic workflows such as model integration, build, simulation or test can be provided easily.
Support has been provided to users of the Battery and BMS models too. Furthermore, the model has been validated against an IVECO pouch cell using real-world mission data (testing conducted by CIDETEC).
The storage of the component models has been organized with an SVN repository provided by dSPACE as model- and metadata file storage in combination with SYNECT Model Management. SYNECT links to the files and provides Test Management (TEVET) and Variant Management (Automatic Model Integration) features for the models.
All in all, at the end of the project, around 130 component models were stored in the repository which is used by around 73 users of the HIFI-Elements project. The SVN repository contains 8 FMUs, 25 SIMULINK models, 13 protected SIMULINK models, 23 S-Functions and 60 XMODELs. Evidently, the original assumption that FMU will be the most prominent component model format has not been met. Instead, the situation is vice-versa since FMU is the least used format.
All results were applied to two BEV transporters that have been derived from the Fiat Doblo and the IVECO Daily.
