The world's first production hydrogen-powered saloon is a development of the Toyota FCV Concept that made its international debut at the 2013 Tokyo motor show. While remaining faithful to the avant garde styling of the concept, the Fuel Cell Sedan features a number of detail changes that make it practical for everyday driving, including adjustments to the radiator grille, headlamps, rear lights, aerial, roof and fuel filler flap. Unsurprisingly, the concept's rear-view cameras have been replaced by conventional mirrors.
The Toyota Fuel Cell Sedan will be launched in Japan, the USA and in Europe during the course of 2015.
The Toyota Fuel Cell Sedan is designed to be practical for motorists' everyday needs, being a front-wheel drive, four-door, four-seat saloon. Performance and cruising range are like that of a petrol engine vehicle and filling the fuel tank takes roughly three minutes.
To maximise cabin space and lower the car's centre of gravity, the fuel cell, battery and fuel tanks are installed under the floor. The two tanks store hydrogen at pressures up to 700bar.
The front compartment houses the electric motor, electronic control system and boost converter. The converter increases the voltage produced by the fuel cell, so has allowed for the size of the motor and number of cells to be reduced, cutting costs and increasing performance.
The technology has advanced considerably since 2002 when Toyota began renting Highlander SUV-based fuel cell vehicles to customers in Japan and North America. A key difference in the new generation of fuel cells is that there is no humidifier; the humidity the fuel cell needs is taken directly from the water produced in the chemical reaction between the hydrogen and oxygen. This means the structure of the fuel cell has been made simpler, more compact, more reliable, lighter and cheaper to produce.
The Fuel Cell Sedan will go on sale in Japan before April 2015 and preparations are under way for launches in the USA and European markets in the summer.
Toyota's commitment to developing vehicles that are kinder to the environment is based on three principles: embracing diverse energy sources; securing low vehicle emissions; and driving positive environmental change by making these vehicles popular with customers.
Hydrogen has great potential as an alternative fuel. It can be produced from a wide variety of primary energy sources, including solar and wind power; it is easy to store and transport; and when compressed, it has a higher energy density than batteries. It could also be used in a much wider range of applications beyond automotive and domestic use, including large-scale power generation.
Fuel cell vehicles contribute to the diversification of vehicle fuels. They emit no carbon dioxide or substances harmful to the environment when driven, but offer the convenience associated with petrol-powered vehicles. Toyota believes the technology has great potential in the development of vehicles that are kinder to the environment and ideal for helping deliver sustainable mobility.
The HyFive project
The aim of the HyFive (Hydrogen for Innovative Vehicles) project is to speed up the introduction hydrogen-powered cars in Europe. The group is a partnership of 15 vehicle manufacturing and energy providing businesses who are joining forces to help ensure a co-ordinated deployment of fuel cell vehicles, in conjunction with establishment of the refuelling and fuel supply infrastructure they will require.
The vehicles deployed by Toyota from the effective launch of the programme at the end of 2015 will be fitted with a continuous data logging system. This will operate throughout the three-year project, providing engineers with detailed, day-to-day feedback on the cars' use and performance, information that will be essential for further development of the fuel cell technology.