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Toyota Launches Production Model “Sora” Fuel Cell Bus

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Posted March 28, 2018

Toyota City, Japan, March 28, 2018―Toyota Motor Corporation (Toyota) announces that sales began on March 7 of the “Sora*1,” the first fuel cell bus (FC bus) to receive vehicle type certification in Japan.

Image: Toyota

Toyota expects to introduce over 100 fuel cell buses, mainly within the Tokyo metropolitan area, ahead of the Olympic and Paralympic Games Tokyo 2020. As the number of FC buses in operation within the metropolitan area increases, Toyota anticipates greater awareness of the vehicle among the general public.

Last year, Toyota launched the “Start Your Impossible” global corporate initiative to transform the company from an automobile company to a mobility service company. This was guided by the company’s desire to contribute to the improvement and enhancement of customers’ lives and society as a whole through support of the creation of a more inclusive and sustainable society in which everyone feels inspired to challenge his or her impossible. In developing the Sora, Toyota has sought to design buses that provide customers with freedom of mobility and become enduring town icons.

Toyota aims to create a bus that works for and supports society, so the Toyota Fuel Cell System (TFCS) has been leveraged in the Sora for its environmental friendliness and ability to serve as a power source in the event of a disaster. The Sora features human-centric universal design and functions, reflecting Toyota’s desire that when riding the Sora, mobility no longer presents an impediment to customers challenging the impossible, which helps enable them to achieve their dreams.

The Sora offers the following specific features

High environmental performance and the joy that is derived from FC technology

The Toyota Fuel Cell System (TFCS), which was developed for the Mirai fuel cell electric vehicle (FCEV), has been leveraged to realize high environmental performance with no CO2 emissions or Substances of Concern (SoC) emitted when in operation, as well as quiet comfort with minimal vibration.

The Sora is equipped with a high-capacity external power output device, which can provide high output and a large capacity of electricity supply (9 kW maximum output, and electricity supply of 235 kWh*2) and has potential use as an emergency power source following disasters.

Image: Toyota

Universal design and function that provides everyone with greater freedom of movement

Horizontal seats with an automatic storage mechanism (first in Japan*3)The Sora’s seats are automatically stored when not in use, improving comfort and convenience for passengers with strollers and wheelchairs as well as other passengers.

Image: Toyota

Field of vision support camera system (bus peripheral monitoring function) (first in Japan*3Eight high-definition cameras fitted inside and outside the vehicle detect pedestrians and bicyclists around the bus providing a field of vision support camera system. When at bus stops, the system warns the driver of surrounding pedestrians and bicyclists through sound notifications and images thereby improving safety.

Image: Toyota

Acceleration control function delivers improved safety (first in Japan*3)The acceleration control function suppresses sudden acceleration and enables smooth acceleration from complete stops in consideration of the safety of standing passengers. Also, as the bus is not motor operated, there is no gear shifting, resulting in minimal lurching.

Design

The design pursues stereoscopic shaping that significantly differs from the hexahedron (box shape) of conventional buses. It also uses LED technology for the front and rear lights. Such design features make the FC bus instantly recognizable.

Image: Toyota

Main specifications

Vehicle Name Sora
Length / width / height 10,525 / 2,490 / 3,350 mm
Capacity (seated, standing, and driver) 79 (22+56+1)
FC stack Name (type) Toyota FC Stack (solid polymer electrolyte)
Maximum output 114 kW × 2 (155PS × 2)
Motor Type AC synchronous
Maximum output 113 kW × 2 (154PS × 2)
Maximum torque 335 N・m × 2 (34.2 kgf・m × 2)
High-pressure hydrogen tank Number of tanks (nominal working pressure) 10 (70 MPa)
Tank internal volume 600 liters
Drive battery Type Nickel-metal hydride
External power supply system*2 Maximum output / power supply amount 9 kW / 235 kWh

Footnotes:

*1Sora an acronym for Sky, Ocean, River, Air, representing the earth’s water cycle.

*2The power that can be supplied and the power amount may differ, depending on the performance of the power supply unit, amount of hydrogen remaining, and power consumption. External power output device sold separately.

*3As of March 28 (according to Toyota Motor Corporation).

Source: Toyota

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