During the workshop “The Future of Driving Performance”, AMG gives a taste of what to expect from the future sports models of Mercedes. They made the distinction between, on the one hand, the plug-in hybrid powertrain which debuts in the restyled Mercedes-AMG GT 4-door and which will be declined in the successor to the C63 in 2022 and, on the other hand, the Fully electric powertrain that will be found for the first time in the AMG version of the Mercedes EQS.
The development was carried out in close collaboration with the technical teams of the Formula 1 team. The centerpiece of this new electric strategy will be the Mercedes-AMG Project One, the hybrid hypercar powered by an F1 engine.
1. Mercedes-AMG GT 73 Coupe 4-door E Performance
The name is unofficial, but it is confirmed that the expected 2021 facelift of the Mercedes-AMG GT 4-door coupe will welcome a new top version. And that top version is hidden under the new E Performance tote, which involves a plug-in hybrid twin-turbo V8. The introduction of an electric motor allows AMG to find additional power, without any negative effect on fuel consumption or emissions. Quite the contrary, since standard consumption and CO2 emissions would be considerably reduced.
The twin-turbo V8 is assisted by the Electric Drive Unit (EDU) located on the rear axle, which combines a synchronous electric motor with a two-speed transmission and an electronically controlled rear differential. The high performance 400 V battery weighs 89 kg, has a capacity of 6.1 kWh and a continuous power of 70 kW, but for about ten seconds the battery pack can generate up to 150 kW. A special cooling system ensures a constant temperature, allowing the energy storage unit to maintain its high performance. As in Formula 1.
Depending on the application (i.e. the considered model), the electric motor can reach 150 kW and 320 Nm, so the plug-in hybrid drivetrain promises a combined maximum power of 815 hp and system torque of up to 1000 Nm. The Mercedes-AMG GT 73 E Performance is supposed to go from 0 to 100 km / h in less than 3 seconds. The EDU’s two-speed drivetrain delivers plenty of torque during starts and continuous performance at higher speeds. The electric motor drives the rear axle directly and therefore operates independently of the 4Matic all-wheel drive and the nine-speed Speedshift automatic transmission.
2. Mercedes-AMG C 63 E Performance.
The electric powertrain and high-performance battery work just as well with a 2.0-liter four-cylinder engine. Not just any four-cylinder, but the most powerful currently available in series. This supercharged M139 block is found in the AMG 45 variants of the Class A, CLA and GLA. Under the name E Power, this power source will be incorporated into the AMG 2022 version of the all-new Mercedes C-Class.
The greatest innovation is the electric gas turbocharger’exhaust, which is used for the first time on a production model. This technology comes directly from Formula 1 and is called MGU-H (Motor Generator Unit Heat). The same system is used in the Mercedes-AMG Project One and therefore also in the F1 car of seven-time world champion Lewis Hamilton. A electric motor is integrated directly on the’gas turbocharger shaft d’exhaust and provides immediate response without turbo lag and improves response time throughout the rev range.
Thanks to plug-in hybrid propulsion technology, the successor to the Mercedes-AMG C63 should be at least as powerful as its predecessor, which transmits its power from 476 to 510 hp (for the S version) to the rear wheels. The EDU, electric turbocharger and high-performance battery add around 200kg, but since the four-cylinder is much lighter than the V8 in the outgoing AMG model, the weight gain would be limited. The new C63 (or C73, for that matter) will come standard with 4Matic all-wheel drive. No manual gearbox will be offered, not even as an option.
3. Mercedes-AMG EQS
Stuttgart is also working on 100% electric AMG variants based on the new EVA platform, the electric vehicle architecture that will debut with the Mercedes EQS on April 15, 2021. Significant changes to the powertrain, chassis and design, among other things, should make them real AMG models. The drive system uses two synchronous electric motors, which provide fully variable all-wheel drive with modular torque distribution. The 400 V lithium-ion battery has its own wiring harness, suitable for the higher performance of AMG versions.
According to Mercedes, the electric powertrain may have specifications comparable to the more powerful versions of the twin-turbo 4-liter currently in use for the majority of AMG models. In the Mercedes-AMG GT Black Series, the V8 develops 730 hp and 800 Nm. The electric motors of the fastest EQS reach a top speed of 18,000 rpm and allow a top speed of 250 km / h. The 0-100 km / h sprint should take no more than 4 s.