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COSYMCOSYMFlyer / Brochure / White PaperCOSYM – Powerful Simulation and Integration Platform COSYM – Powerful Simulation and Integration Platform Continuous and efficient testing and validation in MiL, SiL, and HiL environments.

Area of application:

Test of real and virtual ECUs Simulation and test of virtual ECU networks Integration of physical models and ECU functions (VECU e.g. from ISOLAR-EVE, FMU, ASCET or Simulink models) Continuous testing of use cases in MiL, SiL, and HiL Simulation in real and virtual time
COSYMCOSYMManual / Technical DocumentationCOSYM Installation Guide 07/30/2020
COSYMCOSYMManual / Technical DocumentationCOSYM Release Notes 07/30/2020
COSYMCOSYMManual / Technical DocumentationCOSYM Software Compatibility List 07/30/2020
COSYMCOSYM, …RealTimes ArticleFull control of charge management and more Future-proof test systems for vehicle control units

The vehicle control unit (VCU) is set to play an increasingly important role, especially in electrifi ed vehicles. Its performance capabilities make it the perfect choice for complex tasks such as coordinating all the components in the powertrain, including charge management, and handling computationally intensive, cross-domain tasks. Consequently, the VCU places major demands on the test …

COSYMCOSYM, …RealTimes ArticleVirtual ECUs in the cloud Promising combination of ETAS ISOLAR-EVE and COSYM

ISOLAR-EVE has enabled highly realistic ECU simulations on PCs for several years now. The latest version 3.3.1 adds the ability to execute virtual ECUs in the cloud, where they can be verifi ed as a complete system, using the COSYM integration platform and a simulation of the vehicle communication network.

COSYMCOSYMKnown Issue ReportKnown Issue Report COSYM Known Issue Report COSYM

Even after careful development and extensive release testing, we occasionally find defects in our products after they have been released into the marketplace. We correct minor problems in the course of our regular maintenance and development activities.

For more significant problems, we publish a Known Issue Report (KIR) to inform you about the technical effects of a known problem as well as offer solutions …

COSYMCOSYMVideoCOSYM – How to set up a SiL simulation

Control unit functions can be mapped to software components which can be tested in software-in-the-loop environments (SiL).

ETAS COSYM enables continuous MiL/SiL/HiL (XiL) testing of systems, paying special attention to control unit networks.

This video shows how a virtual test system simulation can be conducted using COSYM.



COSYM provides a REST API Interface. With this framework, the server, client and documentation are synchronized.

The video explains the “Demonstration on REST APIs”, which is shipped with the COSYM Product.



More videos are available on our ETAS YouTube Channel.

COSYMCOSYMVideoCOSYM – Tool Coupling: Example with Matlab®/Simulink®

The Tool Coupling feature in ETAS COSYM is used to connect to various simulation tools. Currently, COSYM supports tool coupling with MATLAB®/Simulink®.
In few cases, some of the native models cannot be imported into COSYM (example: when the source code of a model is not available).
In that case, you can run the simulation of such models natively in the MATLAB®/Simulink® application itself, and use the results in the SiL …

Virtualization TechnologyCOSYM, …Technical ArticleValidation of Highly Automated Driving Functions with Cloud-based Simulation

If additional vehicle functions are activated after the regular start of production, validation and verification of highly automated driving functions according to SAE level 4 and 5 must be able to be repeated. ETAS shows how this high system complexity can be managed securely in software architecture and real test drives can be saved by using cloud computing.

Dipl.-Ing. Johannes Wagner is Senior Product Manager …