Mercedes-Benz GenH2 Truck on the test track, Mercedes hydrogen Truck first look

Mercedes hydrogen Truck first look, Mercedes Benz GenH2 Truck on the test track,
Daimler Trucks is focusing on hydrogen-powered fuel-cells for the electrification of its vehicles for flexible and demanding long-haul transport. It aims to achieve ranges of up to 1,000 kilometres and more without any stops for refuelling. In late April, the truck manufacturer began to conduct rigorous tests of the first new enhanced prototype of its Mercedes-Benz GenH2 Truck, which was unveiled in 2020. This marks an important milestone on the path to series production. During these tests, the developers at Daimler Trucks are putting the fuel-cell vehicle through its paces. The extensive series of tests is very demanding for the vehicle and its components, and focusses, among other things, on continuous operation, different weather and road conditions, and various driving manoeuvers.
Demanding tests for 1.2 million kilometres of operating performance

The development engineers at Daimler Trucks are designing the GenH2 Truck so that the vehicle and its components meet the same durability requirements as a comparable conventional Mercedes-Benz Actros. This means 1.2 million kilometres on the road over a period of ten years and a total of 25,000 hours of operation. That’s why the GenH2 Truck has to complete extremely demanding tests — just like every other new Actros generation. During the first few weeks of testing, the vehicle has already covered hundreds of kilometres under continuous load on a road-to-rig test stand and gone through many extreme situations that are based on real-life operating conditions. Examples include emergency braking and kerbstone drives along the test track.

Completely new vehicle concept and new components

The GenH2 Truck has been newly designed from the ground up. It features completely new components, which the developers are particularly focusing on during the tests. These components include the fuel-cell system, the all-electric powertrain, and all of the associated systems such as the special cooling unit. In addition, the new components’ specific weight and position in the vehicle affect the truck’s handling properties.

Liquid hydrogen offers many advantages

Daimler Trucks prefers to use liquid hydrogen because in this state, the energy carrier has a far higher energy density in relation to volume than gaseous hydrogen. As a result, the tanks of a fuel-cell truck using liquid hydrogen are much smaller and, due to the lower pressure, significantly lighter. This gives the trucks more cargo space and a higher payload. At the same time, more hydrogen can be carried, which significantly increases the trucks’ range. This makes the series GenH2 Truck, like conventional diesel trucks, suitable for multi-day, difficult-to-plan long-haul transport and where the daily energy throughput is high.

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