FKFS Veranstaltungen

2025 Stuttgart International Symposium
on Automotive and Engine Technology

3. - 4. Juli 2025

Session: Development Methods II | | 17:05 - 17:35

Creation and Usage of Virtual Control Units (V-ECUs) in SIL and HIL for Development and Validation Especially for Software-Defined-Vehicles (SDVs)

Martin Rühl, dSPACE GmbH

The mindset to think about cars as Software-defined Vehicles is intensifying more and more with many automakers and suppliers aiming to become strong software companies. This leads to an increasing interest in virtual development and validation environments. Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) environments are both well-known and established methods which both provide meaningful advantages. However, to achieve highest efficiency and flexibility, the transition between SIL and HIL is key. By this, reuse of all kinds of artifacts like models and test cases between SIL and HIL becomes possible. Especially remarkable is a possible combination of virtual and real Electronic Control Units (ECUs) which leads to hybrid environments or couplings of SIL and HIL. Different types of virtual control units (V-ECUs) can be used for this purpose, but generation of V-ECUs is still an issue for many companies.We would like to share our understanding of V-ECUs: the definition of different types especially for SDVs, the generation and usage of corresponding V-ECUs, and the SIL-HIL transition. These insights can be used for guidelines to define an overarching validation strategy at OEMs or suppliers.