Validating Test Cases for Safety Relevant ECUs using Simulation Models

• Software Components responsible for active safety require extensive testing using multiple steps from unit level to integration level. As the hardware involved in this process is costly and limited, it is important that test cases used in this environment are valid. In this study, we present a novel approach towards validating test cases for active safety software components in vehicles. Simulation models from the integration testing step are re-used for validating test cases early in the process. The approach builds upon the SimTAny framework that conducts a test-driven agile simulation. However, simulation models are available in their Matlab/Simulink simulation environment. Thus a distributed simulation of the test and the system model is required. Accordingly, an extended framework for distributed simulation is created using the high- level architecture / run-time infrastructure standard. We validate the approach by applying it to a test for reversible belt tensioning and the respective simulation model. We were able to reuse an existing simulation model and validate connected test cases. We show that the framework has the potential to save valuable time on expensive hardware resources and time to review test results.

Subject headings

NATURVETENSKAP  -- Data- och informationsvetenskap -- Programvaruteknik (hsv//swe)

NATURAL SCIENCES  -- Computer and Information Sciences -- Software Engineering (hsv//eng)

Keyword

distributed simulation

active safety

model-based software

Simulink models

Publication and Content Type

ref (subject category)

kon (subject category)