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Preh Presents Battery Management Technology for 48 Volt Systems at IAA 2015

09.24.2015

Author:Preh

Source:Preh

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(2015/09/24): Frankfurt am Main/Bad Neustadt a. d. Saale.Frankfurt am Main/Bad Neustadt a. d. Saale. The E-Mobility division of Preh GmbH presents its new battery management technology for 48V battery systems at the International Motor Show (IAA) 2015. In future, the new technology will play an increasingly important role both in reducing consumption as well as CO2 output    in integrating additional comfort functions. Preh was already able to win the first serial order for a 48V battery control unit.

Michael Bischoff, Preh Divisional Managing Director E-Mobility: “For the future theme 48V, we are building on our know-how for the battery management of current electrical  and  hybrid vehicles. We are already the series supplier for the control devices of the battery management in the BMW i3  and  i8  and  in a range of Active-Hybrid models. With our new 48V BCU we can therefore provide all the relevant battery management functions.”

The 48V battery management is individually configurable according to customer needs  and  comprises the monitoring of both the voltage  and  temperature of every individual battery cell. On the basis of these measured values different battery charge conditions can be adapted because a uniform loading  and  unloading behaviour in all cells will increase battery life  and  other measurements. In addition, a highly precise current sensor will be used, which reaches an accuracy of 0.35 % with an initial calibration of 0.1 % – even after 10 years. Integrated MOSFET switches are used to ensure the observation of the security requirements by means of all-pole separation of the battery. 


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