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# The FMI Layered Standard for Network Communication v1.0 has been released - enabling the simulation of virtual ECUs with FMI 3.0!
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Increasingly complex supply chains and functional diversity in the creation of virtual ECUs (vECUs) require standardization to ensure the simple and cost-efficient exchange of vECUs for users of Software-in-the-Loop (SiL) testing solutions. FMI is an established standard for creating vECUs already using the FMI versions 1.0 and 2.0, but the capabilities for these applications has been improved significantly with the release of FMI 3.0 in 2022. Additionally FMI 3.0 allows for the specification of layered standards. These are defined based on the FMI 3.0 core standard and extend its capability for specific usage domains, in the case of the new Layered Standard the network Communication of vECUs:
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Increasingly complex supply chains and functional diversity in the creation of virtual ECUs (vECUs) require standardization to ensure the simple and cost-efficient exchange of vECUs for users of Software-in-the-Loop (SiL) testing solutions. FMI is an established standard for creating vECUs already using the FMI versions 1.0 and 2.0, but the capabilities for these applications has been improved significantly with the release of FMI 3.0 in 2022. Additionally FMI 3.0 allows for the specification of layered standards. These are defined based on the FMI 3.0 core standard and extend its capability for specific usage domains, in the case of the new Layered Standard the network Communication of vECUs:
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Automotive CAN, LIN, FlexRay, CAN FD, CAN XL and Ethernet are network technologies that have been applied successfully over many years by all automotive OEMs worldwide. Virtualizing electronic control unit and then simulating multiple such vECUs requires connecting them using a virtual version of these network technologies.
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