Systemy wbudowane do celów pomiarowo-kontrolnych w motoryzacji. Proces projektowania i wstępnej diagnostyki

W artykule zaprezentowano nowoczesne metody tworzenia aplikacji dla systemów wbudowanych do celów kontrolno-pomiarowych w przemyśle motoryzacyjnym. Przedstawiono podstawy procesu powstania oprogramowania zgodnego ze standardem SPICE. Opisano także wyzwania stojące obecnie przed programistami oraz współcześnie stosowane narzędzia do ich rozwiązywania. Artykuł prezentuje również symulację przykładowego modelu funkcjonalnego zaimplementowanego w środowisku Matlab.

Two types of verification methods, i.e. MIL & SIL, are provided by TargetLink. In the current circumstances, due to higher car electrification, the complexity of the software developed for automotive industry is increased. This situation forces investments in new solutions and programming tools for the development and maintenance of the source code. This paper describes the foundations of software development compliant with the SPICE standard and its well-known model implementation, i.e. V Model (Fig. 1.). The authors focused on the description of the concept behind the application development with the aid of functional models (Fig. 5). Those models are designed in the MATLAB environment, followed by the automatic source code generation using TargetLink, which complies with the AUTOSAR standard. This standard allows automated model integration (applicable to functionalities, e.g. control of windscreen wipers or electric windows). Once designed and tested, the model can be reused in many other projects, which guarantees the identical functionality regardless of the chosen system architecture. This paper describes the simulation example of a model responsible for the car ambient temperature measurement. (Figs. 4, 5). In addition, the simulation covers the operation of the model. The simulation results are shown in Figs. 8 and 9. In order to perform runtime checks of the generated code for any faults, the authors used two types of verification methods provided by TargetLink, i.e. Model In the Loop & Software In the Loop.