Railway

ERTMS

The ERTMS project establishes how onboard and trackside signaling systems operate, ensuring full alignment with European regulatory standards. We have developed and simulated various scenarios internally and partnered with Alstom and SNCF on several projects. Internal developments are hosted and accessible at https://hub4sys.com

HyperloopTT

CIL4Sys modeled and then simulated the functional behavior of Hyperloop capsules, and interfaced the “Train Control System” model proposed by Hitachi via an OPC Server.

Automotive

Automotive Electronics Architecture

For an automotive OEM, we modeled the specifications of a new Electronic Architecture in order to verify and validate them using our test bench, Sim4Sys-Virtual-Bench.

A wide range of domains were addressed, including:

  • Vehicle modes and EV electrical management
  • Lighting systems
  • ADAS functions such as Lane Keeping Assist, Emergency Braking, Adaptive Cruise Control, and Automatic Parking
  • Diagnostics
  • Start and Access features

Thanks to digital validation, many specification updates and improvements were proposed, ensuring higher reliability and performance of the architecture.

Automotive Over The Air software updates

For an automotive OEM, we modeled both:

  • The IT infrastructure: around 20 servers involved in the update process, managing vehicle configuration, customer subscriptions, software repositories, and more.
  • The vehicle ECU architecture.

Early simulations of the update process revealed a timing issue. By optimizing the architecture, we were able to reduce the duration of an update campaign by a factor of 100.

Placeholders derived from the models are now used on servers to test evolutions of other software, and on HIL benches to validate the complete update process with new configurations.

Use Sim4Sys with VECTOR CANoe to run tests in HIL benches

Vector's software “CANoe” is a tool for testing and analyzing ECUs. Vector has developed a new Open Source software library called SILKit. It enables the distributed simulation for automotive applications. CIL4Sys Engineering leverages SILKit to integrate Sim4Sys scenarios with HIL benches, enabling the reuse of existing models for component testing.

Autonomous valet parking

The autonomous valet parking use case has been a showcase project for CIL4Sys since its early days. Back in 2018, we demonstrated it using a mock-up car on a table, with a ceiling-mounted camera in our office. Today, we’ve developed a detailed specification to allow students to implement it on a full-scale vehicle and present it during the UTAC Challenge in May 2026.

Integration of an HMI developed with Qt

A climate control HMI defined with Qt Creator by the Open Source project GENIVI, controls the vehicle functions defined and simulated with Sim4Sys. This project is hosted at Hub4Sys

Aeronautics

Inspection drone

This project began with the AIDA model developed in Capella by IRT Saint Exupéry. We first replicated the model, then enhanced it using our design platform Sim4Sys. The video also demonstrates the connection between Sim4Sys and the Unity 3D environment. The project is hosted at Hub4Sys

Defense

Systems of systems in defense industry

Thanks to its solid expertise in operational scenarios, CIL4Sys has contributed to the MGCS (Main Ground Combat System) program. By leveraging Sim4Sys toolchain, CIL4Sys enabled stakeholders to explore architectural hypotheses within a realistic operational environment, incorporating terrain constraints and adversary behavior.

Mine warfare

The modeling and simulation of a software platform for supervising and controlling a set of automated assets : underwater, naval, and aerial dedicated to mine warfare. Our “Customer In the Loop” approach, supported by Sim4Sys, accelerated the production of robust specifications for the supervision platform software.

Vessel inspection by drone

At the Euronaval exhibition, our partner LGM presented Sim4Sys, featuring a demonstration of a vessel inspection supported by a drone in a virtual environment. This functional digital mock-up, based on a MBSE approach and real-time simulation capabilities, enables:

  • Accelerated and continuous system verification and validation through early-stage virtual testing, dynamic behavior analysis, and model-based requirements checking.
  • Interactive sharing of operational scenarios among stakeholders via a 3D interface that integrates mission-specific constraints, sensor feedback, and platform dynamics.
  • Shortened design cycles by enabling iterative prototyping, traceability between operational needs and technical specifications, and support for co-engineering across disciplines.

Industry 4.0

Robotic cell

For an assembly plant, the 'automation' specifications for a robotic leak detection cell were reviewed. CIL4Sys proposed analyzing and simulating the robot’s behavioral logic and its environment in a virtual setup, as described in the specification document. This approach made it possible to enrich the specifications and demonstrate the intended operation to the selected automation subcontractor using a functional digital mock-up.

Production line definition and optimization

The cluster NextMove developed a demonstrator for Industry 4.0: a compact and ‘transportable’ production line for manufacturing badges. CIL4Sys created the functional model of the NextFab line, carried out its simulation, and proposed automation improvements, including:

  • Enabling flexibility by allowing multiple types of badges to be produced within the same production run.
  • Allowing the operator to manage target production rates for each type within the campaign.

These new operating modes were successfully demonstrated using a functional digital twin. The next objective is to generate PLC code to showcase the results on the actual line.

Energy

Nuclear plants

CIL4Sys has played an active role in a range of nuclear energy initiatives, including the ITER fusion project , enhancements to safety systems for conventional nuclear power plants, and small modular reactors (SMRs). Our expertise has been key in defining and executing operational scenarios during the early stages of these projects.

Hydrogen production

CIL4Sys was involved in the early phase of a green hydrogen production plant definition project. Advanced systems architecture modeling and the simulation of initial architectural hypotheses served as key accelerators for the technical definition.

Smart City

SquareMiles

In collaboration with key partners, CIL4Sys has launched SquareMiles, a startup committed to enhancing urban logistics through efficient delivery systems and the adoption of low-carbon mobility solutions. SquareMiles is paving the way for cleaner, smarter city logistics. SquareMiles

Greenlight

In collaboration with its AI4Cities partners—an initiative supported by the NextMove mobility cluster—CIL4Sys developed an intelligent traffic optimization solution aimed at maximizing the number of vehicles reaching intersections during green lights. By dynamically adjusting traffic flow, the solution reduces unnecessary stops and idling time, leading to significant reductions in CO₂ emissions. Beyond environmental benefits, the system also enhances road safety and user comfort by minimizing traffic congestion and creating a more fluid driving experience.

Smart building

In collaboration with partners, CIL4Sys has designed and simulated an innovative energy management solution for buildings. The system integrates solar panels, on-site electricity storage, and charging stations for electric or hybrid vehicles—offering a forward-thinking approach to sustainable energy. Discover more about the project at Hub4Sys.

Legal notice
CIL4Sys Engineering®