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dSPACE Simulates High-Voltage Batteries

By DE Editors

dSPACEdSPACE’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.

The model facilitates function development for battery management systems (BMS) and also the testing of close-to-production electronic control units (ECUs). Model-in-the-loop (MIL) simulations in Simulink and hardware-in-the-loop (HIL) simulations on the simulator are used for this.

The new ASM multicell battery model supports the elementary functions of current battery management systems, such as cell balancing. It simulates each battery cell to represent the cell-specific charges, voltages and currents. The computations are performed in real time, no matter how many cells there are, according to the company.

Physical parameters such as internal resistance, diffusion and double-layer capacities can be defined for each cell. The model also includes leakage currents such as those due to outgassing when NiMH cells are charged.

The ASM model can be combined with dSPACE’s new controllable EV1077 buffer amplifier modules to build a complete battery cell emulation. The galvanically isolated voltage is output with a precision of +/1.5 mV across the entire working temperature range. The modules can be switched in series to achieve a total voltage of up to 1000 V.

Fore more information, visit dSPACE.
Sources: Press materials received from the company and additional information gleaned from the company’s website.

About DE Editors

DE's editors contribute news and new product announcements to Desktop Engineering. Press releases can be sent to them via DE-Editors@deskeng.com.
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