Submitted 05/2026
HIL Platform for BMS SCALEXIO
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Product Context
dSPACE's SCALEXIO Battery HIL (Hardware-in-the-Loop) is a real-time validation environment used for testing and validating (Battery Management System) BMS functionality during the Battery Module Development process. It's a modular and scalable system designed for development and validation of BMS at signal, high-voltage and virtual levels.
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Connor FoleySenior Application Engineer at dSPACE“At dSPACE, we provide comprehensive simulation and validation solutions for Battery Management System development through advanced SIL and HIL technologies. Combining our powerful SCALEXIO platform with our scalable battery emulation hardware and flexible ASM battery model, developers can test the full range of their BMS applications from high precision cell voltage monitoring and SOC calculations, to safety protection mechanisms and balancing strategies. Additionally, our VEOS platform enables seamless SIL simulation of virtual BMS ECUs, creating a continuous workflow from early algorithm development to production-ready validation.”
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Specifications & Service
- The SCALEXIO Battery HIL (Hardware-in-the-Loop) Platform is a high-performance, real-time validation environment specifically engineered for the rigorous testing of Battery Management Systems (BMS). It serves as the critical physical bridge between virtual software simulation and vehicle production, ensuring that BMS hardware can reliably manage the electrical stresses and communication complexities of modern electrified powertrains.
- At the core of the solution is the ability to provide high-precision cell voltage emulation with up to 300 µV accuracy. This allows engineers to "trick" a physical BMS controller into perceiving a live battery environment. The system supports a wide range of configurations:
- High Voltage Capability: Supports system voltages up to 1500 V.
- Current Handling: Supports currents up to 20 A for active/passive balancing tests.
- 4 channel cell boards DS5482 for compact and cost efficient test systems
- 8 channel temperature sensor simulation board DS5486
- 2 channel high voltage source board DS5488
- By using Failure Insertion Units (FIU), engineers can safely simulate dangerous failure modes—such as internal cell shorts, sensor wire breaks, or insulation faults—in a 100% reproducible laboratory setting without the fire risks associated with real high-voltage batteries.
- The system integrates seamlessly with dSPACE ASM Battery (Automotive Simulation Models). These Simulink-based models are completely open and parameterizable via the ModelDesk tool, allowing for the simulation of: Diverse cell chemistries (LFP, NMC, etc.). Complex thermal dynamics and aging effects. SOC (State of Charge) and SOH (State of Health) algorithm benchmarking.
- The SCALEXIO hardware is housed in a robust 19" industrial rack system, available in various sizes from compact 18HE units to 41HE Superset variants. The modular architecture includes:
- Real-Time Processor (RTPC): For high-speed computation of battery models.
- Various I/O Boards for cell voltage emulation, temperature sensor emulation and output of Pack battery voltages up to 1.500V.
- Multi-Protocol Support for signal based BMS testing using Cell Controller Virtualization: Full compatibility with CAN, SPI, isoSPI (Analog Devices), VIF (TI), and TLP (NXP), ensuring support for all major cell controller vendors.
- Testing is streamlined through AutomationDesk, which utilizes block-based test case libraries for fully automated execution. This enables continuous integration (CI) workflows where BMS software builds are automatically validated against thousands of test scenarios overnight, ensuring rapid development cycles and high-quality software releases.