A Co-Simulation Framework for Black-box Testing of In-Vehicle ECUs

Sammanfattning: With the increasing complexity of embedded systems in the automobile industry, the demand on the testing process increases simultaneously. Bus communication behavior is an important feature which is used by testers to evaluate functions of the embedded system under test. However, the existing testing method Hardware-in-the-Loop simulation is expensive and it is mainly used at the late stage of the project life cycle. Additionally, the time and resources available for the testing process are very limited. The thesis designs a co-simulation framework for testing functions of invehicle Electronic Control Units (ECUs). It is dedicated to providing a realistic environment for the ECU under test at both early and late stages of the project life cycle and reducing the cost of the testing process. The framework consists of multiple ECUs that are implemented by different methods and connected to the same vehicle bus. A prototype is also implemented to evaluate the design of the co-simulation framework. Multiple simulation tools are used during the process of the prototype implementation. Limitations and future work of the thesis are discussed. As a proof-of-concept framework, the resulting prototype can be extended to more functions and provides solutions for further research on ECU testing.