Ultra-lightweight foam core runabout squeezes mileage from small fuel cells

Cleaner, Zero Emission Fuel Cells-Electric powertrains are one way to reduce the impact of a vehicle, except how to reduce the weight of the vehicle so that the powertrain can push the vehicle further up. In addition, the weight reduction allows the powertrain to be reduced, further reducing weight. This is the cycle in which the German Aerospace Center (DLR) operates on the Safe Light Regional Vehicle (SLRV). The eye-catching prototype uses a small fuel cell / battery-based electric powertrain and ultra-lightweight metal foam construction to serve as a competent mobility solution in the city and beyond. And it looks much cooler than the average green car.

The brief explanation behind the 12.5 ft (3.8 m) SLRV was to create a lightweight, safe and affordable vehicle. This is a trio of adjectives like the “two choice” scenario. The foam metal construction acts as the backbone of the design, with front and rear crushable zones that protect important vehicle components, and a structural ring that wraps a pod-like two-seater passenger seat cell for energy absorption and shock protection. Is equipped with. The overall weight of this foam sandwich structure is only 199 lbs (90 kg), and the gross vehicle weight is 992 lbs (450 kg), which contributes significantly to less than four digits.

The lift-up canopy provides entrances to the two seats inside, providing a clearer, more uninterrupted view of the surroundings of the vehicle.


DLR continues its efforts to reduce weight with a powertrain that combines a small fuel cell, a small battery and a dual motor rear electric drive. According to the agency, fuel cell / battery setups are lighter than traditional batteries. Using hydrogen from a 39L (3.5 lbs at 700 bar) pressurized tank between the seats, the fuel cell outputs a continuous 8.5 kW and the battery adds up to 25 kW of system power to increase acceleration. To supply. This combination provides a range of up to 249 miles (400 km) and speeds of up to 75 mph (120 km / h). On the other hand, the waste heat from the fuel cell is reused as cabin heating, and is insulated in cold weather by the efficient heat insulation of the sandwich structure.

3,990 lbs (1,810 kg) for comparison Hyundai NexoWith a combined fuel cell and battery output of 135 kW, it powers vehicles up to an estimated 380 miles (612 km) per 156 L (700 bar at 13.8 pounds) hydrogen tank.

The SLRV meets European standards as an L7e heavy quadricicle, and we believe the DLR has been found to be used as a private car, a shuttle between transportation hubs, and a car-sharing solution. The agency named it because it believes that the rapid refueling capacity of the hydrogen system is ideal for traveling in the area between the city and the suburbs. The project team estimates that the car will retail for only € 15,000 and have a lifespan of about 186,000 miles (300,000 km), making it an affordable and efficient mobility solution.

DLR shows SLRV and U-Shift working prototypes in IAA Mobility 2021
DLR shows SLRV and U-Shift working prototypes in IAA Mobility 2021


DLR unveiled its first practical SLRV prototype about a year ago and re-exhibited it with its box-shaped product at the IAA Mobility Event in Munich last week. U-Shift Modular Urban Transporter.. SLRV functions as part of a government agency’s Next Generation Vehicle (NGC) project aimed at identifying and developing technologies that support the future of urban and intercity transport and optimize related manufacturing technologies. To do. The DLR is not sure if the SLRV will be marketed as a full vehicle, but expects some of the project’s technology to be adopted in next-generation vehicles.

sauce: DLR Ultra-lightweight foam core runabout squeezes mileage from small fuel cells

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