Övriga plattformar som snart lanseras skall tydligen vara 800v från start.
https://www.electrive.com/2023/08/21/me ... lt-system/Mercedes-Benz will reportedly upgrade its EQE and EQS electric models to an 800-volt electrical system from 2025, allowing for charging capacities over 200 kW. According to media reports, the switch to 800-volt system voltage is part of a larger upgrade of the EVA2 platform, which will then be called EVA2M.
The EVA2 is known to be the 400-volt platform on which the EQE and EQS series are based, i.e. both the sedans and the corresponding SUV models (including the Maybach offshoot of the EQS SUV). According to the German automotive blog JESMB, the EVA2 will receive a comprehensive upgrade under the name EVA2M – the ‘M’ stands for “Mopf”, the Mercedes-internal abbreviation for model updates.
In the process, the previous e-motors from Valeo will be replaced by the eATS 2.0 drive developed by Mercedes-Benz itself, which operates with an 800-volt electrical system. Since the eATS 2.0 is apparently only designed for 800 volts, the voltage position for the drive must also be changed for the EVA2. In principle, the eATS 2.0 unit is also to be installed in the future platforms MMA (CLA, as well as the next generation of the EQA and EQB) and the MB.EA-M (C-Class and GLC). According to JESMB, the MB-EA-L for the large E-vehicles from 2028 will receive a drive unit called EDU3.0, EDU stands for Electric Drive Unit.
The EVA2M will also use new SiC power electronics and a new type of battery cell. The SiC power electronics alone, instead of semiconductors made of pure silicon, are supposed to increase the range by five per cent due to lower heat losses, according to “JESMB”. All that is said about the new cell type is that it is “identical to the MMA platform”. Whether it is a different cell chemistry or a change in cell format is not mentioned.
