Managing Quality in a Virtual World
Application of quality assurance for virtual vehicle development
As the complexity of modern vehicles continues to grow, so does the effort involved in their de-velopment. In particular, with advanced driver assistance systems and autonomous driving functions spreading, it has become almost impossible to perform all relevant test cases in real-world test drives using physical prototypes. Virtual prototypes open up the possibility of mas-sively reducing this effort in order to increase the efficiency and cost-effectiveness of vehicle development. For a smooth process, the quality of the simulation must be ensured at all times. In this success story, Groupe PSA gives insights into their quality assurance framework for vir-tual prototype development.
Engineers today face the challenges associated with a vehicle development marked by contradictions. On the one hand, there is a necessity to bring new vehicle models and variants to market in ever shorter intervals. On the other hand, the number of prototypes of increasing complexity is expected to be kept to a minimum in order to keep the development as cost-efficient as possible.
Replacing real-world test drives requires physical prototypes to be reliably modeled in the system simulation. One prerequisite is the validation of the models.This, however, poses a great dilemma for developers since validation only becomes possible once the physical system is available, which is usually the case towards the end of the development process. For the validation of the models, therefore, it is absolutely essential to define requirements regarding their possible areas of use. In addition, the goal is to perform and guarantee quality assurance for the system simulation based on the previously defined requirements.
Application and combination of different tools in order to achieve quality assurance similar to real-world development processes. Groupe PSA employs the method of constructive quality assurance. A framework has been developed to this end, which is based on the open integration and test platform CarMaker as well as MATLAB Simulink and which features several interfaces. Groupe PSA calls this framework “AXIOM” (Automotive X in the Loop Object-oriented Model framework).