Toyota and Kenworth to build 10 fuel-cell semis for LA port duty Page 2

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Kenworth T680 powered by Toyota hydrogen fuel-cell powertrain, at 2019 Consumer Electronics Sh

Kenworth T680 powered by Toyota hydrogen fuel-cell powertrain, at 2019 Consumer Electronics Sh

Kenworth T680 powered by Toyota hydrogen fuel-cell powertrain, at 2019 Consumer Electronics Sh

Kenworth T680 powered by Toyota hydrogen fuel-cell powertrain, at 2019 Consumer Electronics Sh

Kenworth T680 powered by Toyota hydrogen fuel-cell powertrain, at 2019 Consumer Electronics Sh

Kenworth T680 powered by Toyota hydrogen fuel-cell powertrain, at 2019 Consumer Electronics Sh

The trucks themselves will be powered by an electric motor mounted roughly amidships in the chassis, fed by a pair of 114-kilowatt (153-horsepower) Toyota Mirai fuel-cell stacks and a 12-kwh Toshiba lithium-ion battery pack to store energy for use when maximum power is required.

Together, those components can deliver maximum power of 500 kw (670 hp) to the drive motor, rated at up to 1,325 lb-ft of torque. Power is delivered to the axle through a four-speed automated manual transmission.

Ancillary components, including power steering, brake air compressors, and cabin heating and cooling, are provided electrically.

DON'T MISS: Toyota 'Project Portal' hydrogen fuel-cell heavy-duty semi tractor (Apr 2017)

The prototype truck on display at CES used a total of six hydrogen tanks mounted vertically in a rack behind the cab, storing 60 kg of hydrogen compressed at 10,000 psi.

Other tank configurations might be considered for later vehicles, said Brian Lindgren, the director of R&D for Kenworth, located in Renton, Washington.

Lindgren also noted the 10 test trucks to be built this year and next would use shorter "day cabs" without a sleeper area behind the seats, which isn't necessary for drayage duties in which drivers go home each night.

Kenworth T680 powered by Toyota hydrogen fuel-cell powertrain, at 2019 Consumer Electronics Sh

Kenworth T680 powered by Toyota hydrogen fuel-cell powertrain, at 2019 Consumer Electronics Sh

With the elimination of a large, heavy diesel engine from in front of the driver, he acknowledged, Kenworth might be able to design future semi tractors with shorter noses and potentially better aerodynamics.

Such trucks might conceivably resemble an earlier design study, known as the Kenworth Aero X, Lindgren suggested, though the 10 prototypes will package the components of their zero-emission powertrains in standard T680 shapes.

And, he underscored, Kenworth doesn't see hydrogen fuel-cell powertrains as the sole alternative for zero-emission trucking of the future. Battery-electric power will likely also play a role, he said.

"It's not an either-or," he concluded. "It's an and-both."

Toyota provided some travel and accommodation to enable Internet Brands Automotive to cover its various announcements at the Consumer Electronics Show.


 
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