Location
Visit BLOOMY® at booth #108 at the Vertical Flight Society's Transformative Vertical Flight 2025
BLOOMY will present the following:
Title: HIL/SIL Validation Testing Explained
Presented by: Peter Blume, President and Founder, BLOOMY®
Hardware-In-the-Loop (HIL) and Systems Integration Lab (SIL) testing are critical techniques for the validation, integration and certification of electric aircraft. BLOOMY has commercial offerings for the simulation and test of autonomous systems, battery, engine, environmental, and flight controls, mission, propulsion, and vehicle management systems, as well as sensors, actuators and avionic buses. In this presentation, Peter explains HIL/SIL testing, challenges often associated with designing and building a new SIL, as well as the latest commercially available components and architectures for streamlining the process. Furthermore, Peter will present a reference design for eVTOL.
- Introduction to HIL/SIL testing, including component testing, integration and certification as well as full iron-bird testing, from Tip-to-Battery-to-Tail
- The latest commercially available technologies for battery cell and pack simulation that increase safety, efficiency, test coverage and performance
- Scalable test system architectures that dramatically reduce labor, cost and lead time for new HIL/SIL deployments, thereby accelerating eVTOL time-to-market
Title: Testing Battery Sensitivities Using a Battery Surrogate
Presented by: Grant Gothing, Chief Technology Officer, BLOOMY®
Many eVTOL and electric aircraft systems are highly sensitive to battery performance. A battery surrogate may be used in place of the real battery in order to safely and efficiently simulate the effects of the battery’s capacity, state of charge (SoC), state of health (SoH), cell/module/string imbalance, thermal events, alarms, faults, and trouble codes. Simulating these conditions with a battery surrogate allows for comprehensive, controlled hardware-in-the-loop (HIL) testing, without the risks and limitations associated with real batteries.
This presentation describes an 800V battery surrogate comprised of over 200 simulated battery cells including key design and implementation details, as well as applications for systems integration lab (SIL) and iron bird. The battery surrogate is comprised of commercially available components including battery cell simulators (aka emulators), signal and power IO, communications, cell models, a real-time controller, and the BMS. Important considerations include safety, isolation, interconnections, and corresponding topologies.
The battery surrogate enhances safety, reduces costs, and accelerates development by providing consistent, repeatable, and reconfigurable test scenarios, while optionally providing full battery power to the battery sensitive subsystems. Through dynamic battery emulation in Hardware-in-the-Loop (HIL), System Integration Lab (SIL), and Iron Bird environments, engineers can optimize the performance and reliability of electric aircraft, ensuring safe and efficient operations.
Exhibits
In the exhibit hall, BLOOMY® will showcase a 800V Battery Cell Simulation Tower, an electronic functional equivalent of an 800V battery pack, without the hazards and inefficiencies of real battery cells. An accurate and repeatable test stimulus, the 800V Cell Simulation Tower may be used for hardware-in-the-loop (HIL) testing of battery management systems (BMSs) or combined with a BMS to form a battery surrogate for testing and validating many battery-sensitive systems.
The 800V Cell Simulation Tower provides full, immediate control of the BMS without the delays and hazards inherent with charging and discharging real battery cells. It is a must have for every electrification test lab!
For more on new developments at BLOOMY, visit us at www.bloomy.com!
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