A modeling approach for development of an automotive AMT ECU software with UML-RT

Over the past decades, the amount of automotive ECUs (Electronic Control Units) is increasing at a breathtaking pace. Accordingly, the size and complexity of ECU software also increased, and these give rise to various challenges to automotive software engineers. They need a new approach and tools to meet these challenges. Model-Based development is a choice. This paper presents a model-based design approach for the development of AMT (Automated Manual Transmission) ECU software using UML-RT language in automotive domain. UML-RT is a modeling language tailored to the demands of real-time software. The paper shows the methods and process on modeling functional and architectural model using UML-RT key diagram. Conclusions are drawn on how these models helps the different developers visualize, construct, and discuss together the structure and behavior of software´s architecture.