In low-voltage systems, high currents require exceptionally large cable cross sections and lead to higher transmission losses. We were able to solve this problem with our design of a nanoFlowcell® 48VOLT low-voltage drive, especially as the nanoFlowcell® generates high currents at a very low nominal voltage, which are perfectly usable for a low-voltage drive.
In the QUANTiNO 48VOLT and the QUANT 48VOLT, we have configured the low-voltage drive architecture in a way that significantly reduces the cable diameters usually required. This is an important development step in the design of low-voltage electric vehicles suitable for series production, reducing cost and weight and also enabling greater design flexibility.
While high-voltage electric vehicles call for full-scale contact and arcing protection, this is no longer necessary in low-voltage vehicles. In the first instance, this means more safety for vehicle occupants and, in the case of an accident, for first responders, too. Secondly, it leads to an accelerated homologation process, as functional safety is easier to implement in low-voltage vehicles.
Right now, we are the only manufacturer worldwide able to realise low-voltage drives in electric cars without having to make compromises in overall vehicle weight or performance. We will take full advantage of this design benefit in the development of future QUANT electric vehicle concepts.