Home Car Brands Mercedes-Benz 2022 Mercedes-Benz EQS – Electric powertrain and battery details

2022 Mercedes-Benz EQS – Electric powertrain and battery details

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2022 Mercedes-Benz EQS – Electric powertrain and battery details. We’ve learned some mechanical details about the electric sport sedan that will be unveiled on April 15th

Today we received most if not all of the details of the mechanical underpinnings of the performance sedan (apart from the North American full-charge range figure). But we still don’t have any idea what the exterior of the four-door ‘coupe’ looks like, as the full vehicle won’t be released until April 15th during its official world premiere.

So we’ll have to leave that up to our imagination, in part fuelled by the VISION EQS concept (pictured above) that the production model is based on and some recently released EQ-brand camo-exteriors. This is what we have learned:

The EQS will be one slippery customer, with Mercedes reporting a drag coefficient value of .020, which would set a new benchmark in aerodynamics for a production vehicle. It will also be one road-trip friendly all-electric customer, with a reported WLTP range of 770 kilometres (take this with a grain of salt, WLTP estimates are usually well off North American range estimates and real-world results), and an output of up to 385 kW (516 horsepower). Charging from 10 per cent to 80 per cent utilizing DC fast-charging is said to take 31 minutes. The EQS can be charged up to 200 kW on a DC charger, and with the on-board charger up to 22 kW with an AC outlet.

Rear-wheel-drive and 4Matic all-wheel-drive versions will be produced, but at launch the sole version available in Canada will be the EQS 580 4Matic. The combined electrical consumption for that model is 20.0 kWh/100 km in city driving and 16.9 on the highway. The electric motors on the front and rear axle are permanently excited synchronous motors, with the rear axle getting a more powerful output thanks to a six-phase operation. The 4Matic model features a torque shift function that continuously distributes power between the front and rear axles, with the electric drivetrain (eATS) responding, according to Mercedes, much faster than a mechanical all-wheel-drive system. Maximum torque for the 580 4Matic is reported to be 855 Nm (630 lb-ft).

Unlike some other automakers, Mercedes has brought all its battery-cell and battery-management-system production in house, and the EQS is the first vehicle to feature this new generation of higher density lithium-ion batteries. The modular platform holds two battery packs utilizing a 400-volt architecture, with the larger of the two featuring a usable energy of 107.8 kWh. Mercedes also reports that the new cell chemistry has seen a 10 per cent reduction of the required cobalt, resulting in a nickel, cobalt and manganese ratio of 8:1:1.

The battery management system is also designed to allow for over-the-air (OTA) updates, and the advanced thermal management can preheat or cool the battery while driving. This is a benefit when pulling up to a fast-charging station, as quicker charging times can be realized when the battery pack is at an optimal temperature. That’s part and parcel of what Mercedes calls ‘Electric Intelligence,’ which also includes integration into the navigation system that plans the quickest route based on a number of factors, such as topography, ambient temperature, speed, and heating and cooling demands. It also takes into consideration real-time traffic congestion and charging station location, cost and availability.

That’s it for now, but tune in in two weeks’ time and we’ll know even more about this next-generation Mercedes electric vehicle — and more importantly, what it actually looks like.

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