The Unfortunate Truth About Toyota's Hydrogen V8 Engine
2,127,295
Published 2022-10-28
How Toyota's Hydrogen Engine Works - • Toyota's Developing A Hydrogen Combus...
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Toyota partnered with Yamaha to develop a hydrogen powered V8 engine, derived from the 5.0L V8 used on the Lexus RC F. The engine produces 450 horsepower by burning hydrogen, and thus has no direct carbon emissions. Unfortunately, there's a big problem with hydrogen combustion vehicles, as this video will demonstrate.
From the Yamaha Press Release:
"In November last year, the five companies of Kawasaki Heavy Industries, Subaru Corporation, Toyota Motor Corporation, Mazda Motor Corporation, and Yamaha Motor jointly announced they would begin discussions for conducting collaborative research into possible avenues for expanding the range of fuel options for internal combustion engines in the quest for carbon neutrality. And at the announcement venue, the V8 hydrogen engine shown above, which was developed by Yamaha for Toyota, was unveiled to the public. The unit is based on the 5.0-liter engine in the Lexus RC F luxury sport coupe, with modifications made to the injectors, cylinder heads, intake manifold, and more, and delivers up to 450 hp at 6,800 rpm and a maximum 540 Nm of torque of at 3,600 rpm."
References:
Yamaha - www.yamaha-motor.eu/cy/en/news/tapping-the-potenti…
Hydrogen Storage - www.energy.gov/sites/prod/files/2017/03/f34/fcto-h…
Toyota Mirai - toyota-cms-media.s3.amazonaws.com/wp-content/uploa…
Hydrogen Combustion Review - www.mdpi.com/1996-1073/14/19/6209/htm
Hydrogen Combustion Eff. - www.tandfonline.com/doi/full/10.1080/15435075.2019….
AFDC Fuel Properties - afdc.energy.gov/files/u/publication/fuel_compariso…
Hydrogen Prices - www.motortrend.com/reviews/2021-toyota-mirai-fcev-…
BMW Hydrogen 7 Road Test - www.hydrogen.energy.gov/pdfs/hydrogen-program-plan…
DOE Hydrogen - www.hydrogen.energy.gov/pdfs/hydrogen-program-plan…
Hydrogen Storage - doi.org/10.1016/j.ijhydene.2019.03.063
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All Comments (21)
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I love how Jason gave me hope at the beginning of the video, then ripped my heart out and kept destroying it meticulously into little pieces as the video went along. Very informative though! 😂
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i have a solution which is both perfect for safety and storage space: instead of storing the hydrogen inside the body of the vehicle, you pump it into a giant baloon which you then attach to the car by hose, that way as you drive around the baloon just floats above your car and in case of car crash it just detaches and flies away perfect
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Thank-you for these insights. I have seen at least one other concurring analysis. It’s not very practical for passenger automobiles. What about semis, buses, and heavy construction equipment? Would love to see your take on that. Stay safe.
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Awesome job! I watched another video and couldn’t conceive the efficiency issue until you explained it. Thank you
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The fact that they developed it even though it doesn't make much sense, gives me hope. Putting the work, effort and money into an idea that doesn't guarantee profit is something we don't see often these days.
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I love that Yamaha is always creating new engines. 🙌💯
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Always great watching your videos giving pros and cons on new development, thanks.
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You are very very good at the job of fully explaining this issue with NO CONFUSION! Kudos! to you, sir. Thank you so much. Please keep up the great work. It is very appreciated.
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I actually rode in one of those hydrogen 7 Series at the Frankfur motor show. Because the hydrogen eats up oil, the engine more or less ran unlunbricated. therefore it made a horrible rattling sound and had to be rebuilt constantly. Not to mention the fact that all the weight from the colossal hydrogen tanks made it the slowest V12 car on the planet...
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An old boss had a track record at Riverside (now defunct) in an alt-fuel class. He ran a Fiat on hydrogen with water 'injection'. He said hydrogen doesn't knock, so he ran a 16:1 compression.
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You keep dashing my dreams of driving a combustion engine 20 years from now
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Keep up the good work. I was using the video as entertainment AND information so I did not take notes. I think you provide an essential service.
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I agree with your conclusion. My only comment would be that the hatchback in the visual bucket display has a 14-15 gallon gas tank underneath, so approx three of the buckets would take up that space, and not be in the hatch area.
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When I was a kid in my High School engineering class (circa 1985), we watched videos about plastic engine parts in Pintos and Hydrogen ICE, and I thought for sure it was the future. I always wondered why it never came true until I found EE years ago. I still love learning about energy technology, and Jason never lets me down with his channel, making fun videos that explain the math behind what he is talking about.
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I don’t doubt your point about Hydrogen being impractical as a fuel for a V8 sports car, but I noticed that when you talked about liquid Hydrogen and the 75% reduced space requirement, you went from 21 five gallon buckets, to 12 five gallon buckets. 12 is not 25% of 21??? If I heard you wrong and you meant a 25% reduction of space, then the math still doesn’t equal 12 buckets, from 21 originally used.
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insane info and presentation thank you, very very intresting
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I really like Jason, he explains things in a way that is understandable. He also throws in some humor so the material is not dry. Thanks Jason.
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I would be interested to see the storage needs for a 4 cylinder turbo engine. Presumably, on a vehicle which a 4 cylinder would adequately power, there would be less fuel needed for the same driving range. We shouldn't despair that there's not a perfect hydrogen option yet. We're making progress.
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Thanks for the illustration of how many problems would have to be resolved before it could be used.😮
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As with EVs and ICEs, what emissions are required to build the HV? High-pressure holding tanks are difficult to construct and require high-grade steel or similar materials. Has a comparative study been made for HVs?
