The fuel-cell bus
[Click to enlarge image]

Toyota Motor Corp announced Oct 21, 2016, that it will release a fuel-cell bus under the brand of Toyota in early 2017.

The company will sell two units of the bus, and they will be used by the Bureau of Transportation, Tokyo Metropolitan Government, as fixed-route buses.

Toyota is planning to sell 100 or more fuel-cell buses for use mainly in Tokyo in view of the 2020 Tokyo Olympic/Paralympic Games. And the release announced this time will be the first round.

The fuel-cell bus of the Toyota brand was developed by Toyota based on the knowhow that it has built up through the joint development of fuel-cell buses with Hino Motors Ltd. For the bus, Toyota employed the fuel-cell (FC) system of the Mirai fuel-cell vehicle (FCV). To increase the output of the bus, Toyota used two FC stacks, two motors and 10 high-pressure hydrogen tanks.

The output of the FC stacks is 228kW (114kW x 2). The maximum output of the motors is 226kW (113kW x 2). And the maximum torque is 670N·m (335N·m x 2). The nominal working pressure of the high-pressure hydrogen tank is 70MPa. The capacity of the tank is 600L per unit.

The fuel-cell bus can supply up to 9kW of electricity (235kWh) to external equipment, and it can be used as a power source for a shelter, residential house, etc during a power failure caused by a disaster, etc. It measures 10,525 (L) x 2,490 (W) x 3,340mm (H) and has a capacity for 77 people.