„Over the past decade, conventional wired BMS has served the electrification of vehicles well. But with the growing number of Battery Electric Vehicles (BEV), along with the demand for longer ranges and the use of larger batteries, the time has come to intensively consider the further development of the BMS,“ emphasizes Dr. Robert Hentschel, Senior Vice President Valmet Automotive.
In a BMS based on single-cell monitoring, in which the data is transmitted independently via an NFC connection, Dr. Martin Lenz, Director of Electrics/ Electronics Valmet Automotive, sees one of the most promising solutions for the future: “This technology has the potential on one hand to reduce the battery package by 10% and BMS cost by 25%. On the other hand it guaranties already cell monitoring in cell production and later on the traceability of each cell for the battery manufacturer and the pack user.”
New technology based on single-cell monitoring.
At the same time, the solution provides real-time access to a variety of data that are not available on today´s systems. Principle and data ensure increased measurement accuracy, reliability and safety of the battery system. Although there are still some hurdles to overcome, Martin Lenz is convinced that the results so far justify a further intensive examination of the topic.
Experts from Valmet Automotive will provide the BMS based on single-cell monitoring at the 28th Aachen Vehicle and Engine Technology Colloquium, taking place on 7 – 9 Oct. The technology is demonstrated there at a 48-Volt-Module. Presentation by Valmet Automotive, Oct. 8, 3:30 p.m, Aachen Colloquium, Eurogress Aachen, Room “Brüssel”.
The Valmet Automotive Group is one of the largest vehicle contract manufacturers in the world, Tier-1 systems supplier to roof systems and a key development partner to the global automotive industry. In its strategic development, Valmet Automotive Group focuses on electromobility and battery systems. The activities in the group are divided into the four business lines: Manufacturing, Engineering, EV Systems and Roof & Kinematic Systems. Since its founding in 1968, Valmet Automotive has produced more than 1.4 Million vehicles at the Uusikaupunki, Finland plant. In 2018, 110.000 vehicles were manufactured, more than ever before in the company’s more than 50-year history. In Salo, near the Uusikaupunki plant, Valmet Automotive will open its first volume production of batteries for the automotive industry in autumn 2019. The company has around 6.000 employees at its locations in Finland, Germany, Poland and Spain (as at: 2018, Dec. 31). The largest shareholders in the Valmet Automotive Group are state-owned Finnish investment company Tesi and the Pontos Group, each with a stake of 38.46 percent. 23.08 percent is held by the Chinese Contemporary Amperes Technology Limited (CATL), the world’s leading manufacturer of batteries and battery cells for electric vehicles.
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