Coupling of HIL Simulations

What is it about?

This paper describes a solution for performing highly accurate time synchronization for a distant HIL by making use of GPS disciplined oscillators. The solution is based on the HIL technology SCALEXIO. While the time synchronization is deeply embedded into the given technology the users can operate the distant HIL systems with a very similar method as for operating a local SCALEXIO HIL system. This makes use of the fundamental properties of the SCALEXIO technology.

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Why is it important?

The combination of distributed tasks and interdependencies between systems causes the necessity for duplicating HIL systems in order to perform network and integration tests. But duplicating test systems is costly and time consuming. Setting up a cloned test system at a different site is obviously a cost factor due to the expenses for hardware, software and labor. Besides this, the duplicated test system must be updated when the original systems is changed. Thus, companies consider coupling different test systems over long distances instead of duplicating them.