33 Battery tech for heavy-duty apps | Focus E-Mobility Engineering | July/August 2024 for various vehicle configurations, including placement underneath truck and bus cabins (inside or outside the rails), on top of vehicles or in rear racks. After mechanical installation, high-voltage connectors, a single data connector and two coolant ports link to the rest of the system. A Battery Management System (BMS) interfaces with the vehicle’s CAN network to control packs in parallel. The latest BMS systems can control up to 24 packs with one Master Control Unit. With applications ranging from trucks to mining equipment and excavators, vehicle assemblers have a wide pool of requirements, as Nick Flaherty reports Heavy metal The pack combines high-performance battery modules with NMC cells, the battery disconnect unit (BDU), control electronics, and high-efficiency module cooling plates and manifolds. The BDU assembly contains the main contactors, precharge circuit, fuses, gas sensor and the String Control Unit. The enclosure provides a variety of mounting options, ventilation, electrical and coolant interfaces, manual service disconnect with half-pack fuse, and a port for optional, customer-specific auxiliary gas sensing. As heavy-duty applications vary from trucks to mining equipment and excavators, vehicle assemblers have a wide range of requirements, so the packs need to offer long-end (side), short-end and corner mounts to cater A battery pack for heavy-duty design (Image courtesy of Freudenberg)
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