The PLUG-IN HYBRID technology combines an internal combustion engine with an electric drive featuring a lithium-ion battery which can be charged at a mains socket. In town, the vehicle can be driven in purely electric driving mode, whilst longer journeys benefit from the impressive range of the internal combustion engine.
Depending on the situation, the electric drive can be used to either replace or supplement the combustion engine. Furthermore, it allows energy to be recuperated during overrun phases and whilst braking. The result is greater dynamism and improved efficiency.
The emission-free future.
More detailed information
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The PLUG-IN HYBRID system is a key technology on the road to locally emission-free motoring of the future. Energy recuperation is a technology which has particularly great potential.
The intelligent operating strategy of the PLUG-IN HYBRID uses a pre-emptive combination of both drive systems in order to automatically ensure as efficient a battery charging and discharging process as possible. In the process, the system takes into consideration both the charge level of the battery and the route calculated by the navigation system as part of the route-based operating strategy. The control strategy aims, for example, to empty the battery in time for the end of a mountainous climb in order to charge it again on the descent. What's more, the system aims to charge the battery completely before reaching towns and cities.
The PLUG-IN HYBRID offers four operating modes: the standard HYBRID setting makes consumption-optimised use of all hybrid functions, depending on the driving situation and planned route. E-MODE is used only for purely electric driving, for example in towns. In the E-SAVE mode, the battery charge is "saved up" in order to be used later for purely electric driving. The CHARGE mode ensures that the battery is charged by the internal combustion engine during driving.
In certain model series, the haptic accelerator pedal uses a double impulse to inform the driver that they must release the accelerator pedal in order to use gliding and recuperation. When driving electrically in E-MODE, the driver feels a pressure point before the internal combustion engine is switched on. If desired, the energy flow can be displayed in the instrument cluster and on the central display in all driving situations.
The hybrid transmissions are based on the ground-breaking automatic transmissions from Mercedes-Benz. An additional clutch is integrated between the internal combustion engine and the electric motor. For purely electric driving, it uncouples the internal combustion engine from the drive train. It also allows dynamic pulling away using the internal combustion engine instead of the electric drive alone. The interaction of both drive systems is adjusted to suit the driving situation. When the vehicle is as a standstill, the ECO start/stop function automatically switches off the internal combustion engine. Pulling away then subsequently occurs purely electrically. This is known as Silent Start. During acceleration, the boost function offers additional power by temporarily coupling the electric motor with the internal combustion engine.
To store the electrical energy, the vehicle has a water-cooled lithium-ion battery which can be charged using wallbox charging stations, public charging stations or household mains sockets. Depending on the vehicle model and charging type, the charge time varies between two and three hours. In purely electric mode, depending on the model series, the range of the PLUG-IN HYBRID is 30 km or more. The vehicle is also capable of driving at speeds up to 120 km/h.