Mercedes-AMG EQS sedan with all-electric drive system unveiled



(September 7, 2021) The new AMG EQS serves as a proof point as Mercedes-AMG embarks on the all-electric future of Driving Performance. The first battery-electric AMG production model is based on the Mercedes EQ architecture for luxury and executive-class vehicles, fitting seamlessly into the overall electric strategy. The luxury sedan with an output of up to 649 horsepower and a boost function that provides up to 751 horsepower has been newly developed and refined in Affalterbach for all performance-related areas.

               

It impresses with brand- specific features to enhance the overall customer experience — from the technology to the exterior/interior design and the emotive vehicle sound.

"The AMG EQS is the first all-electric ambassador in the performance segment, made in Affalterbach. It is tailor-made for car enthusiasts who are looking for a combination of innovative electric mobility in a luxurious ambience, coupled with sportiness and agile driving dynamics," said  Philipp Schiemer, chairman of the Board of Management of Mercedes-AMG GmbH.

"With our first all-electric AMG vehicle, we will undoubtedly appeal to and win over a new clientele for Mercedes-AMG. In addition, the AMG EQS is further proof that Mercedes-Benz is consistently driving electrification forward with its sub-brands as well. Further all-electric AMG models will follow in the not too distant future, also on our AMG.EA platform developed entirely in-house."

"Also with electrification, we ensure that our models based on the EVA2 group platform will deliver on our AMG brand promise. Our customers can also look forward to a dynamic and emotional driving experience in this area. We ensure this with AMG-specific solutions, particularly when it comes to the drive system, suspension, brakes and, above all, sound," Jochen Hermann, Chief Technical Officer of Mercedes-AMG GmbH.

At the heart of the new Mercedes-AMG EQS is its performance-oriented drive concept with two motors. The powerful electric powertrain with one motor each at the front and rear axles has fully-variable AMG Performance 4MATIC+ all-wheel drive, which optimally transmits the drive power to the asphalt in all driving conditions. The basic version achieves a maximum total output of 649 horsepower, with a maximum motor torque of 700 lb-ft.

Further, the standard AMG DYNAMIC PLUS package briefly increases maximum output to up to 751 horsepower while using RACE START mode with boost function. The maximum motor torque also increases up to 752 lb-ft.

Mercedes-AMG says the sedan can accomplish 0-to-62 mph in just 3.4 seconds with a top speed of 155 mph.

Mercedes-AMG models have always stood for emotionality. The vehicle sound has always been an important part of the hallmark AMG driving experience. This will continue to be the case in the future. The AMG EQS brings a new, powerfully sonorous sound to electric driving. Its sound system uses special loudspeakers, subwoofers and a sound generator to create a special sound experience in two versions: "Authentic" or "Performance." This exclusive AMG SOUND EXPERIENCE is generated inside and out with a tonality and intensity to match the current driving status, the selected driving mode or the driver's preference.



The AMG-specific electric motors at the front and rear axles are permanently excited synchronous motors (PSM). The decided emphasis on performance is readily evident in the output and torque values. In addition, the Mercedes-AMG electric motors are characterized by an optimum balance of enhanced power, efficiency and noise comfort. Among other things, this is ensured by new windings, stronger currents and new actuation via inverters with specially developed software. This allows higher rotational speeds and thus more power, setting standards in regards to acceleration and top speed.

The electric motor at the rear axle of the AMG EQS is particularly powerful. A major reason for this is the six- phase design based on two windings with three phases each. The stators with move-in winding ensure a particularly powerful magnetic field.

Added to this is the highly resilient thermal concept, which allows for repeated acceleration maneuvers with consistently high performance. The centerpiece of the sophisticated design is the water lance in the shaft of the rotor, which cools it. Other AMG-specific cooling elements in the cooling circuit are special ribs on the stator and the needle-shaped pin-fin structure on the inverter, which is made of high-performance ceramics. In addition, there is the additional transmission oil cooler which helps to increases efficiency when driving in colder temperatures, as it warms the transmission oil as needed.

The new Mercedes AMG EQS is equipped with a powerful 400-volt battery manufactured using the latest lithium-ion technology. A major advancement in sustainability has been achieved in the cell chemistry: the cobalt content is reduced to ten percent, the optimized active material consists of nickel, cobalt and manganese in a ratio of 8:1:1.

The high-voltage battery has a usable energy content of 107.8 kWh. One special technical feature is the AMG-specific wiring, which is adapted to the high performance capacity. The battery management system is also configured specifically for AMG. In the Sport and Sport+ driving modes the focus is on performance, while Comfort mode focuses on operating range. The new generation of batteries is characterized by a significantly higher energy density compared to previous developments, this also comes with a higher charging capacity. Another new feature is the option to install updates for the battery management system over the air (OTA).

Another advantage of the new battery generation is the significantly shorter charging times. As with its sister model from Mercedes-EQ, the battery can be charged with up to 200 kW at quick-charging stations with direct current. In this case, power for up to another 186 miles (WLTP) can be "topped off" after just 19 minutes. Thanks to the onboard AC charger, the electrified AMG can be conveniently charged at home or at public charging stations. In addition, there are intelligent charging programs that can be activated automatically depending on the location. Functions such as battery-friendly charging make charging even more efficient.

The efficient thermal management also plays a part in shortening charging times. If the intelligent navigation with Electric Intelligence is activated, the battery is preheated or cooled as needed while driving, in order to reach the optimum temperature for fast charging at the charging point. The desired temperature range of the battery is achieved with the aid of the cooling circuit and a PTC (Positive Temperature Coefficient) booster heater integrated into it.

The battery design aims to ensure the optimum battery operating temperature under all operating conditions. The aluminum extrusions of the battery frame have defined cavities throughout which allows the coolant to flow. Overall, the intelligent temperature and charging management ensures that high charging currents can be maintained for a long time.

Pricing has not been announced.