Hella Develops Battery Solutions For Mild Hybrid Vehicles

Hella announced that it will develop and manufacture products that support all stages of automotive electrification. With new products like dual voltage battery management system and powerpack 48 Volt, the company is now one of the first on the market to offer innovative battery module solutions for mild hybrid vehicles. The new solutions enable savings of 5 to 6 grams of CO2 per kilometer and thus help to achieve CO2 targets in the short term.

Starting 2020, newly registered vehicles in the EU will not be allowed to exceed a limit value of 95 grams of CO2 per kilometer. Hella's dual voltage battery management system for the compact and mid-range class allows vehicles with internal combustion engines to be converted to a mild hybrid. It combines the conventional separate core elements such as 48 V battery, 12 V battery and voltage transformer (DC-DC converter) within a single product in the package space of a conventional lead-acid battery. This makes it easy to integrate the system into the existing vehicle architecture. Another advantage: The Dual Voltage Battery Management System eliminates the need for a lead-acid battery in the car. The innovative system consists of lithium-ion cells that are switched intelligently depending on the application. Thus the capacity can be used specifically in the 12-volt or 48-volt vehicle electrical system.

Hella has designed the PowerPack 48 Volt for vehicles in higher power rating classes. It combines a 48-volt lithium-ion battery pack including battery management and DC-DC converter. In addition to the 12-volt battery, the PowerPack 48 is also drawn into the vehicle. It enables hybrid functions such as recuperation (ability to recover energy while braking) or active coasting (the internal combustion engine is switched off while driving) as well as other comfort functions for the luxury class. These include ambient lighting, automatic climate control and active chassis control.