Mercedes-Benz Urban eTruck World Premiere. The latest proof of this development is provided by the world premiere of the Mercedes-Benz Urban eTruck, which shows the way to emission-free mobility in short-radius distribution with heavy-duty trucks. Technically, the Mercedes-Benz Urban eTruck is based on a heavy-duty three-axle short-radius distribution truck from Mercedes-Benz. Apart from that, however, the developers at Daimler Trucks have totally revised the drive concept, the entire conventional drivetrain being replaced by an electrically driven rear axle with electric motors directly adjacent to the wheel hubs. Their maximum output is 2 x 125 kW, while the peak torque is 2 x 500 Nm. In combination with the gearing, the torque at the wheel reaches 11 000 Nm.
The power is supplied by a battery pack consisting of three modules of lithium-ion batteries with a total capacity of 212 kWh. This results in a range of up to 200 km – normally enough for a typical day’s delivery round. Depending on the desired range, the modular battery pack can be customised by adding or removing batteries. The Urban eTruck is connected to the charging station using the Europe-wide standardised Combined Charging System (CCS) Type 2 connector. With a charging power of 100 kW, the fully discharged batteries are charged to 100 percent in two to three hours.
As the EU Commission is in favour of increasing the permissible gross vehicle weight of trucks with alternative drives by up to one tonne, this will more or less cancel out the weight disadvantage of the electric drive. This will raise the permissible gross vehicle weight of the three-axle rigid truck from 25 to 26 tonnes, which will bring the original extra weight down to 700 kg compared with a directly comparable IC-engined truck.
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