Coulomb Solutions Inc. has released its new high-voltage Power Distribution Unit Plus (PDU+) for the integration of almost all commercial EV power electronics into a single drive unit.
CSI’s new PDU+ aims to simplify OEM integration by eliminating most coolant routing, high and low-voltage dc power distribution, and communication wiring.
Along with reduced system complexity and improved serviceability, this reduces weight by over 300 lbs, while further decreasing EV production hours.
CSI’s new PDU+ incorporates four battery string inputs, a 350-kW-1-MW dc fast-charge input and controller, and an internal 20-kW charger with inputs for an additional 40 kW of ad charging.
The CSI PDU+ also has a multitude of outputs including two 250 kW drive inverter outputs, two accessory drive outputs for steering and braking, a 2.5 kW 12V DCDC converter or 6kW 24V dc/dc converter, and four 600 Vdc outputs for an ac compressor, cabin heater, cabin air compressor, and other accessories. The unit also has a high-power DC PTO output and an optional 100kW AC PTO output. The PDU+ is designed in a modular fashion and is highly configurable to OEM requirements.
“CSI’s new PDU+ will greatly simplify commercial EV production by replacing 10 separate components and all the required high- and low-voltage power distribution and coolant plumbing with a single unit about the same size as a standard suitcase,” said David Mazaika, CEO of Coulomb Solutions. “CSI continues to introduce innovative and industry-leading product designs that accelerate OEM and fleet adoption of electrification in the commercial EV industry.”
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