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08.09.2020 Press Release
Fuel Cells for Heavy-Duty Trucks
The 40-ton heavy-duty trucks are the titans of the highways. Thanks to their large loading volume, they enjoy great popularity among freight carriers. While state-of-the-art technologies have been implemented in this weight class in recent years to improve environmental performance, safety and efficiency, overall fuel consumption and vehicle emissions still remain a challenge. This is true particularly within the European Union, where trucks account for 25 percent of the entire CO2 emissions in the transportation sector.
While battery-electric vehicles can be used efficiently and in an eco-friendly way in urban areas, fuel cell technology offers the optimal approach when it comes to emission-free logistics over long distances and with higher payloads. Electric commercial vehicles that are powered solely by batteries are not suited for everyday operations, partly because of longer charging cycles and limited range. During stop-and-go traffic or traffic jams, the battery loses significant power. An additional, time-consuming refueling stop is economically inefficient. A battery-powered electric drive may also require concessions in terms of payload.
An alternative to the 40-ton truck with diesel drive
Freudenberg Sealing Technologies’ fuel cell expertise is focused on making emission-free, economically viable heavy-duty transportation a reality. In the past year, the company has launched successful development projects for buses and cruise ships with partners such as FlixBus and Meyer Werft in Germany. With the cooperation of Quantron AG, a specialist in retrofitting existing commercial vehicles with electric powertrains and batteries, Freudenberg has now turned its attention to truck solutions in the 40-ton weight class to create a low-emission alternative to standard commercial heavy-duty trucks powered by diesel drivetrains. The goal is to test the fuel cell systems for performance, durability and range under continuous commercial driving conditions. The project is funded by the Energy Research Program of the Bavarian State Ministry of Economic Affairs, Regional Development and Energy and is one of the first initiatives that explicitly supports the development of a fuel cell for use in heavy-duty trucks. A first test vehicle with the new drive technology is expected to be rolling across Bavarian roads in mid-2021. The vehicle named Energon was presented to the public in early August this year.
“Fuel cell trucks are the only economical, emission-free alternative that permits large payloads as well as significant ranges and fast refueling cycles,” said Dr. Manfred Stefener, Vice President Fuel Cell Systems at Freudenberg Sealing Technologies. “That's why we are looking forward to working with Quantron AG to create fuel cell applications that are explicitly designed for the maximum load and operating points of trucks.”
Clear focus on heavy-duty trucks
Fuel cells for trucks must cover completely different load and operating profiles than those for passenger cars: On average, a passenger car drives for a maximum of one hour per day and stands still for the remaining 23 hours. This is why passenger car systems are designed for only 5,000 to 8,000 operating hours. Truck systems, in contrast, require a service life of at least 35,000 hours. This is because commercial vehicles earn money exclusively through reliable, continuous operation.
As it focuses on heavy-duty trucks, the current project offers additional innovations. These include, for example, the consistent use of material combinations that optimize the service life as well as the development of special interfaces for space-optimized application in a commercial vehicle. This makes it possible to perform maintenance, repair and replacement tasks with a minimal effort at any time and, thanks to the standardization, to operate a maximum range of vehicles. Existing fuel cell systems were originally developed for passenger cars. For heavy-duty applications, however, all essential design aspects of the system have to be optimized for a long service life.
“The goal is to develop fuel cells that can manage a long service life and real heavy-duty profiles to outshine the diesel when it comes to total cost of ownership,” Dr. Stefener said. “We intend to launch a sustainable, emission-free alternative for heavy-duty traffic on the market.”
For decades, Freudenberg Sealing Technologies has been supporting automotive and commercial vehicle manufacturers in reducing the fuel consumption and emissions of their internal combustion engines with innovative sealing technology. In the mid-1990s, the Freudenberg Group, began conducting research into alternative drive concepts and started developing technically-sophisticated components for fuel cells and batteries. Among other things, the company has developed gas diffusion layers (GDL), humidifiers, filter solutions and seals for fuel cell stacks that are ready for series production.
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