Toyota nnounced today that it has developed a fuel cell
hybrid vehicle equipped with the newly designed high-performance Toyota
FC Stack. The "TOYOTA FCHV-adv"*1 acquired vehicle-type certification from Japan's Ministry of Land, Infrastructure and Transport (MLIT) on June 3.
During development, TMC analyzed results and data from various
utilization studies by the Japan Hydrogen & Fuel Cell Demonstration
Project organized by Japan's Ministry of Economy, Trade and Industry,
tests conducted by the California Fuel Cell Partnership in the United
States and cold-weather tests in Timmins, Canada. TMC also repeatedly
carried out basic research to get to the core of technical problems as
they arose. Based on the results gained from these studies, the TOYOTA
FCHV-adv's fuel cell system was enhanced to further improve cruising
distance and low-temperature starts, which had presented obstacles to
widespread fuel cell vehicle use.
The building block of the Toyota FC Stack is the Membrane Electrode
Assembly (MEA), where engineers focused on the basic problem of
internally produced water interfering with electrical generation within
the MEA at low temperatures. Fundamental research, such as internal
visualization tests, was carried out to understand the behavior and
amount of water generated in the fuel cell, allowing engineers to
optimize the MEA design to improve low-temperature startup. As a
result, the TOYOTA FCHV-adv can start and operate in cold regions at
temperatures as low as -30 degrees Celsius, meaning the vehicle can be
used in a wider variety of conditions and climates.
In addition, fuel efficiency was improved by 25% through improving fuel
cell unit performance, enhancing the regenerative brake system and
reducing energy consumed by the auxiliary system. Further changes
include incorporating degradation control for the electrode catalyst
and improving fuel cell durability. Furthermore, equipping the vehicle
with TMC-developed 70Mpa high-pressure hydrogen tanks makes it possible
to travel approximately 830km*2 on a single fueling—performance that more than doubles that of the TOYOTA FCHV-adv's predecessor, the TOYOTA FCHV.
While steadily conducting research and development to resolve issues
such as how to improve the durability and reduce costs of the Toyota FC
Stack, TMC is working with government, energy companies and other
concerned parties to actively bring about widespread fuel cell vehicle
use.
A Toyota FCHV-adv is to be provided as a test-ride vehicle at
the Environmental Showcase within the International Media Center during
the July 7-9 Hokkaido Toyako Summit.
 |
| TOYOTA FCHV-adv |
*1 Fuel cell hybrid vehicle-advanced
*2 10-15 test cycle, TMC calculations
Vehicle Specifications
| Vehicle |
TOYOTA FCHV-adv |
TOYOTA FCHV |
| Overall length/width/height (mm) |
4,735/1,815/1,685 |
4,735/1,815/1,685 |
| Weight (kg) |
1,880 |
1,880 |
| Seating capacity |
5 |
5 |
Maximum cruising range (km)*
10-15 test cycle/JC08 test cycle
|
Approx. 830/Approx. 760 |
Approx. 330/ - |
| Maximum speed (km/h) |
155 |
155 |
| Fuel cell |
Name |
Toyota FC Stack |
Toyota FC Stack |
| Type |
Polymer electrolyte |
Polymer electrolyte |
| Output (kW) |
90 |
90 |
| Motor |
Type |
Permanent magnet |
Permanent magnet |
Maximum output
in kW (ps) |
90 (122) |
90 (122) |
Maximum torque
in N-m (kg-m) |
260 (26.5) |
260 (26.5) |
| Fuel |
Hydrogen |
Hydrogen |
| Storage system |
High-pressure storage tanks |
High-pressure storage tanks |
| Maximum storage pressure (MPa) |
70 |
35 |
| Tank capacity (L) |
156 |
148 |
| Battery |
Nickel-metal hydride |
Nickel-metal hydride |
*As based on TMC calculations
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