Using the CANoe Test Feature and Test Automation Editor for more efficient regression testing

As the performance of the automobile increasingly evolves, the number of electronic control units (ECUs) and the scale of on-board software continue to grow. Recently, there has been a rapid move to decrease the number of ECUs and integrate multiple ECU functions into one, complicating the matter. In addition, as specifications change more frequently due to the more complex nature of ECUs and the rewriting of programs via communications becomes inevitable, the number of software releases has increased, limiting the development period. Under these circumstances, regression testing has become essential as a means to check for deterioration in the quality of the ECU with each release. As the ECU testing time increases , efficient testing has become an urgent matter in the development department. DENSO CORPORATION is working to automate ECU testing and reduce the testing time by implementing the " CANoe test feature " , a tool for on-board network and ECU development, testing and simulation, and " Test Automation Editor (TAE) " , a test case creation tool. This article looks at the implementation process and results of the project.