Daimler Truck: Gross total weight of 40 tons: the battery-powered eActros now on the road in the northern Black Forest with a trailer

New eTruck test phase launched as part of longstanding practice at Schmitt Logistik

Mercedes-Benz Trucks has launched a new phase of field testing for the eActros at Logistik Schmitt in the northern Black Forest: the battery-electric eActros is now approved as a truck-trailer combination with a total weight of 40 tons. The combination has been handed over to Logistik Schmitt for endurance testing. The vehicle is already available to order for customers in this configuration. Since the start of testing in 2019, the eActros has covered more than 70,000 kilometers on more than 7,000 journeys. As part of this process, it will continue to transport transmission housings and axle components to Daimler Truck’s plants in Rastatt and Gaggenau as part of a three-shift operation, covering up to 300 km per day.

Steffen Maier, Head of Customer Testing, Mercedes-Benz Trucks: “Starting an intensive exchange with customers at an early stage is an integral part of the development of our vehicles. That is why our team has been supporting the practical phase of the eActros test at Logistik Schmitt since 2019. After the successful series production launch in October last year, we are now gradually expanding the scope of the eActros. We look forward to intensive tests with the battery-electric truck-trailer combination in the Northern Black Forest.”

Rainer Schmitt, Managing Partner at Logistik Schmitt: “The eActros as a truck-trailer combination is ideal for our purposes. In combination with the trailer, the electric truck now offers not only a higher total weight, but also significantly more transport volume. This allows us to transport twice as many load carriers on the same journeys.”

Trailer control for the battery-powered eActros

In order to be able to tow trailers of more than 10 tons, tractors of heavy truck-trailer combinations must have a continuous braking system according to the legislation. In the eActros, this continuous braking system is provided by a trailer brake (High Power Brake Resistor or HPR for short) for battery-electric vehicles. At Logistik Schmitt, the eActros 300 (6×2), designed for use with a trailer, is equipped with a center axle Rockinger trailer coupling. The corresponding trailer is a center axle trailer with Junge curtainsider construction. With an internal length of 7280 mm, it has a permissible total weight of 18 tons.

Mercedes-Benz eActros in series production since October 2021

The batteries of the eActros consist of three (eActros 300) or four battery packs (eActros 400), each providing an installed power of 112 kWh[1] and a usable capacity of approximately 97 kWh[2]. With four battery packs, the eActros 400 has a range of up to 400 kilometers[3]. The technological centerpiece is the drive unit – an electric rigid axle with two integrated electric motors and a two-speed transmission. Both liquid-cooled engines generate a continuous power of 330 kW and a peak power of 400 kW. In addition, foresighted driving allows electrical energy to be recovered through recuperation. The energy gained during braking is fed back to the batteries of the eActros and is then available for driving again. The eActros can be charged with up to 160 kW: three battery packs take just over an hour to charge from 20 to 80 percent at a standard DC fast charging station with a charging current of 400 A[4].

Daimler Truckt relies on a flexible and locally CO2-neutral transmission.

Daimler Truck is also planning a comparison of concepts across the region, with the all-battery-electric eActros, in use at Logistik Schmitt, competing against the overhead line trucks from the “eWayBW” project – Daimler Truck has no plans for overhead line trucks itself, as the company’s strategy focuses on both battery and hydrogen-powered vehicles: flexible propulsion technologies that are locally CO2-neutral. As a result, Daimler Truck can cover all of its customers’ applications and offer full flexibility in terms of routes.

[1] The nominal capacity of a new battery, based on internally defined boundary conditions, may vary depending on the usage situation and environmental conditions.
[2] Energy available for normal truck use with new batteries. Based on internally defined boundary conditions, may vary depending on usage and environmental conditions.
[3] The range has been determined internally under optimal conditions, including 4 battery packs after preconditioning in partially loaded distribution traffic without a trailer at 20 °C outside temperature.
[4] Based on internally determined empirical values ​​under optimal conditions, including an ambient temperature of 20°C.

SOURCE: Daimler truck

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