EV battery management system test rig is PXI-based
At this week’s electronica (15-18 November) in Munich, Germany, Pickering Interfaces will highlight its PXI multi-cell battery simulator module. The company’s stand will have a battery management system test demo, developed with partner, Austin Consultants, and featuring its switch and simulation modules, including fault insertion switching and programmable resistors.
The effective testing and validation of battery management systems (BMS) for electric vehicles (EVs) is becoming prevalent as the adoption of EVs increases. Paul Bovingdon, simulation product manager, at Pickering explained “Using modular, PXI-based switch and simulation modules offers many advantages in testing a BMS, including flexibility to optimise the test system to meet exact requirements, simple modification to address evolving requirements and an industry-standard open architecture that promotes system longevity and mitigates obsolescence”. It also provides seamless integration of multi-vendor instrumentation and communication modules, Bovingdon added.
The BMS test demo includes Pickering’s 41-752A PXI battery simulator, simulating batteries in a stacked architecture, its 40-190B PXI fault insertion, which simulates cell shorts and broken wires and the 40-253 PXI precision resistor which simulates battery load. There is also Pickering’s 42-297A PXIe programmable resistor, which simulates battery temperature sensors, the 41-743 PXI programmable power supply, which simulates the battery charger, the 43-920 PXI embedded controller and the Pickering 42-925 PXIe 18-slot chassis.
The company will also introduce optical switches – the 65-280 (matrix) and 65-281 (multiplexer) plug-ins for the LXI 65-200 platform. The 65-28x plug-ins increase the switching element size up to 16 x 16 (matrix) and 32:1 (multiplexer) for a single plug-in. The new topologies are suitable for use with the LXI platform because its larger real estate permits up to six banks of 2 x 2 or eight banks of 2:1 per plug-in.
Visitors can also see the 9kV PXI high voltage switching solutions– available in both PXI & PXIe. These are SPST high voltage power relay modules featuring seven or 14 Pickering reed relays per module. The modules can cold switch up to 9kV DC/AC peak, hot switch up to 7.5kV DC/AC peak at 50W maximum and carry up to 250mA.
Visit Pickering Interfaces at electronica 2022, Munich, Germany (15 to 18 November) Hall A3-161.
