Japanese auto giant
While many major automakers are focusing on electric vehicles to achieve carbon neutral targets, Toyota has also invested in developing a range of technologies, including hydrogen-powered automobiles, which produce almost no carbon dioxide when operating.
For carmakers, the pressure is on to provide sustainable replacements for gasoline-powered vehicles, which the Japanese government aims to eliminate from new car sales by 2035 as part of its push for a carbon neutral society by 2050.
By subjecting the liquid hydrogen car to endurance races, Toyota intends to improve the nascent technology's functionality and address some of its challenges, including how to keep hydrogen liquid at minus 253 C.
Using hydrogen in liquid form instead of its gaseous state would double a car's mileage and allow for smaller hydrogen fueling stations. Liquid hydrogen engines must burn the element as gas after converting it from a liquid.
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"We've made a small move from testing the technology toward a product that can be mass-produced," said
Toyota is not limiting its development efforts solely to onboard liquid hydrogen fuel and is opting instead to search for a number of different uses, including potentially using large tanks for gaseous hydrogen in commercial vehicles and liquid hydrogen for passenger cars.
This is partly because liquid fuel would enable vehicles' tanks to be more flexible in shape and lighter than those for gaseous hydrogen, which are filled under high pressure in cylindrical tanks.
Toyota has already been using endurance races to accelerate hydrogen's viability by fielding a car equipped with a hydrogen-powered combustion engine into competitions, with its debut coming at the 24-hour race at
At its maiden appearance, the specially adapted Toyota Corolla fueled by gaseous hydrogen was piloted by a number of drivers, including Toyota President
In an endurance race last November, Toyota said it had improved the engine's output by 24 percent and its driving range by around 30 percent. It also managed to reduce cases of fire-causing abnormal combustion in the engine, with instances down more than half compared with last March.
The carmaker's liquid hydrogen car began test runs at the end of October.
==Kyodo
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