Simulated High-Voltage Rechargeable Batteries

dSPACE's latest addition to its Automotive Simulation Models (ASM) simulation package is a new battery model for simulating high-voltage rechargeable batteries. The model is designed to virtualize the rechargeable lithium-ion, nickel-metal hydride (NiMH) and lead batteries used for the electrification of vehicle drivetrains.

• Facilitates function development for battery management systems (BMS) and also testing of close-to-production electronic control units (ECUs)
• Uses Model-in-the-loop (MIL) simulations in Simulink and hardware-in-the-loop (HIL) simulations 
• Supports elementary functions of current battery management systems, such as cell balancing
• Simulates every single battery cell to represent cell-specific charges, voltages and currents
• Computations are performed in real time, no matter how many cells there are
• Physical parameters such as internal resistance, diffusion and double-layer capacities can be defined for each cell
• Includes leakage currents such as those due to outgassing when NiMH cells are charged
• Employs intuitive user interface of dSPACE ModelDesk for easy comprehensive parameterization of multicell simulations 
• Combines with dSPACE's new controllable EV1077 buffer amplifier modules to build a complete battery cell emulation
• Galvanically isolated voltage is output with a precision of +/1.5 mV across the entire working temperature range
• Modules can be switched in series to achieve a total voltage of up to 1000V
• Fulfills all major requirements for testing battery management system ECUs by HIL simulation reproducibly and under automated control
• For laboratory use, turnkey simulators are available for component testing of single ECUs and also for integration testing of an ECU network
• Supports entire development process from function design to production release for BMS ECUs