The Plug-in Hybrid Powertrain for Compact Cars from Mercedes-Benz
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The A-class is the sixth Mercedes-Benz model to be offered with a plug-in hybrid powertrain. The overall concept combines everyday all-electric driving with high performance and the long-distance comfort of conventional drives. The vehicle offers an electric range of around 70 km along with a combined system output of 160 kW. This article classifies and describes the powertrain and addresses the hybrid-specific functions.
Positioning in the product portfolio
Mercedes-Benz offers plug-in hybrid powertrains in the C, E and S-class as well as in the SUVs GLC and GLE. At the core of their modular hybrid system is a traction head arranged between the internal combustion engine and the nine-speed automatic transmission (9G-Tronic). The hybrid traction head incorporates a torque converter, a separating clutch and a powerful electric motor in a compact package. The electric motor outputs 90 kW power and 400 Nm of torque, and is supplied by a 13.5-kWh battery in the current generation of...
The authors wish to thank Dr. Matthias Maisch, Stefan Wenkeler, Markus Knab and Evan Cole (Daimler AG) for their support in creating this article.