In the 48V/12V vehicle power net the overall efficiency can be enhanced by higher energy throughput on the 12V side: 1. High recuperation rates into 48V and 12V batteries increases fuel efficiency / lowers CO_2 2. Benefit of using 12V Lead-Acid technologies with high charge acceptance, here: up to 17% of the overall charge energy was delivered by 12V A positive charge balance enables a new perspective on the split of functions between 12V and 48V.
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