Mercedes-Benz has announced advancements in its drivetrain technologies, emphasizing efficiency in its upcoming electric and hybrid models. The newly developed systems highlight the company’s ongoing commitment to sustainability and innovation. These technologies include a modular electric drive system, high-performance battery developments, and updated hybrid options.
Modular electric drive system
The first vehicles based on the Mercedes-Benz Modular Architecture (MMA) will feature a new electric drivetrain. The Electric Drive Unit (EDU 2.0) incorporates an 800-volt architecture, a two-speed gearbox, and a silicon carbide inverter to enhance efficiency and performance. The main drive, developed entirely in-house, is positioned on the rear axle and delivers 200 kW of power. For all-wheel-drive models, an additional 80 kW unit is included on the front axle.
The system achieves 93% efficiency on long-distance drives, offering a projected range of over 466 miles (750 kilometers) under WLTP standards. The drivetrain supports ultra-fast charging, adding up to 186 miles (300 kilometers) of range in just 10 minutes with DC fast charging at 320 kW.
Battery technology
Mercedes-Benz’s new battery design emphasizes energy density, sustainability, and safety. The premium battery, available in the U.S. at launch, has a usable energy content of 85 kWh. It incorporates anodes with silicon oxide, increasing gravimetric energy density by 20% compared to previous designs. The volumetric energy density of the cell chemistry reaches 680 watt-hours per liter. The system also includes measures to reduce cobalt usage and enhance thermal safety.
The battery housing integrates into the vehicle’s structure, meeting Mercedes-Benz’s strict crash safety standards. Advanced thermal management systems ensure optimal performance in varying climates.
Hybrid drivetrains
The MMA platform also introduces a new 48-volt hybrid drivetrain. The hybrid system includes a four-cylinder engine and an electrified eight-speed dual-clutch transmission. An integrated 20 kW electric motor provides support during low-speed driving and allows for short periods of all-electric operation in urban settings. The hybrid drivetrain is designed to improve fuel efficiency and reduce emissions.
Research and development initiatives
Mercedes-Benz continues to refine its technology through facilities such as the Electric Software Hub (ESH) in Sindelfingen. Opened in 2022, the ESH integrates hardware and software development, ensuring seamless interaction between components. This facility has been instrumental in the development of the MMA platform.
The company has also established the eCampus in Stuttgart-Untertürkheim, focusing on high-performance battery cell research and production optimization. These efforts aim to reduce battery costs by 30% in the coming years.
Endurance testing
In a 24-hour test at the Nardò track in Italy, a prototype based on the MMA platform achieved a distance of 2,309 miles (3,717 kilometers). This test highlighted the system’s time efficiency, with 40 charging stops averaging 10 minutes each. The vehicle maintained an average speed of 96.2 mph (154.9 km/h), demonstrating its capability for long-distance travel.
Future applications
Mercedes-Benz plans to introduce bidirectional charging in future models, enabling vehicles to act as energy storage systems. This functionality supports vehicle-to-home (V2H) and vehicle-to-grid (V2G) applications, contributing to broader energy solutions.
The advancements outlined reaffirm Mercedes-Benz’s leadership in drivetrain technology and its commitment to a sustainable future.
