Hydrogen Vehicles
Hydrogen V8 ICE
Exciting news for internal combustion engine (ICE) lovers: Toyota, Mazda, Subaru and Kawasaki are wanting to collaborate on the attempt to keep the combustion engine alive while meeting all the global clean air targets. Not only that, but Toyota and long-time Japanese engineering partner Yamaha are at work developing a special new hydrogen-powered 5.0-litre V8 engine. Unlike a hydrogen fuel-cell car, which combines hydrogen and oxygen atoms to create electricity to drive a motor, this new hydrogen V8 internal combustion engine is a conventional piston-driven engine that has been tuned to burn hydrogen instead of petrol.
While this newly developed V8 engine isn’t completely new, the way it’s fuelled is. It’s a 5.0-litre naturally aspirated V8 that is based off the engine that has been used in the Lexus RC F coupe. Yamaha says that it produces around 335 kW of power at 6800 rpm and 540 Nm of torque at 3600 rpm. Having modified the injectors, the head, the intake manifolds and other engine components, this work has added up to make the engine environmentally friendly. The hydrogen-fed ICE has become less powerful than the petrol-fed V8 that the hydrogen engine is based on. In the Lexus RC F coupe, the petrol V8 puts out 472 kW and 536 Nm of torque, so while torque has increased a little, power has dropped considerably. That said, 331 kW is still a stonking amount of power to enjoy, and more often than not it is the torque that you really want in the real world conditions. You also still get the sound of a burbling V8, and what’s not to like about that!
Yamaha engineer, Takeshi Yamada, said that the engine has a different character to a conventional petrol motor. He stated that hydrogen engines provide a friendlier feel, making them easier to use even without having utilize other electronic aids for the drive.
Toyota is clearly committed to the project of providing ICE powerplants that use hydrogen as the fuel. Given that Toyota has run a hydrogen-powered Toyota Corolla in Japan’s Super Taikyu race series as well as showcasing a hydrogen-powered Toyota Yaris GR prototype with the same hydrogen engine technology, it is obvious that they want to continue with this new breed of ICE.
One of the beauties about burning hydrogen instead of petrol is that the hydrogen powerplant does not produce carbon dioxide, which is considered to be one of the primary contributors to global warming. There would also be no significant nitrogen oxides emissions from an ICE designed to burn hydrogen, thanks to the selective catalytic reduction technology used in the aftertreatment of the combustion gases.
“Hydrogen engines house the potential to be carbon-neutral while keeping our passion for the internal combustion engine alive at the same time,” Yamaha Motor president Yoshihiro Hidaka said. He also added that: “I started to see that engines using only hydrogen for fuel actually had very fun, easy-to-use performance characteristics”.
While hydrogen is plentiful in the universe, it must be separated from other compounds to be used as fuel. Up to the year 2020, most hydrogen was produced from fossil fuels, resulting in CO2 emissions. Hydrogen obtained from fossil fuels is often referred to as grey hydrogen, when emissions are released into the atmosphere. Blue hydrogen is the hydrogen produced from fossil fuels when emissions are captured through carbon capture and storage (CCS).
Hydrogen that is produced from fossil fuels using the newer non-polluting technology called methane pyrolysis is often called turquoise hydrogen.
You can also generate hydrogen from renewable energy sources, and this hydrogen is often referred to as green hydrogen. There are two practical ways of producing green hydrogen. One of the ways is to use electric power for producing hydrogen from the electrolysis of water. The other way of producing green hydrogen is to use landfill gas to produce the green hydrogen in a steam reformer. Hydrogen fuel, when it is produced by using renewable sources of energy like wind or solar power, is a renewable fuel.
Hydrogen can also be created from another renewable energy source called nuclear energy via electrolysis, and this is sometimes seen as a subset of green hydrogen, but it can also be referred to as being pink hydrogen.
Obviously, when a car can be designed to run on hydrogen that has been produced from renewable energy sources, then this is a good thing. Toyota and Yamaha remain adamant that this is great technology which could carve out a niche for itself in the new EV automotive landscape.
Toyota has also recently revealed a fleet of 12 zero tailpipe-emission concept vehicles, many of which will reach production in the coming years.
This is all good news stuff, especially for those of us who love the sound of an ICE instead of a silent EV. The noisy farts always get the best round of laughter!
An FCEV for Our Environment
With the rising concerns over greenhouse gas emissions, the development of ammonia fuelled vehicles as environmentally friendly cars would have to look rather promising. A car running on NH3 – now what’s not to like about that?
Many scientists believe that it is urgent to reduce CO2 emissions because of the global warming effect that the gas has on the climate around the globe. Despite CO2 in the atmosphere being great for plant growth (some of the edges of the earth’s deserts are greening up again with increased CO2 in the atmosphere), and the earth’s water cycle playing a pivotal role in governing the earth’s temperature, the drive to create taxing emission standards and expensive alternatives continues to drive government policy worldwide. What if we gradually changed over to another source of energy so that everyone in the world could afford the switch, allowing people to maintain a higher standard of living?
Using CO2–free fuels to reduce the level of CO2 emissions could be a viable option in the current climate. So, what about ammonia?
An internal combustion engine (ICE) burns a fuel. Basically, you can convert an engine to run on any fuel such as fossil-fuels, hydrogen and ammonia, and there are many ways to do so. ICE engines are very good in combination with battery and hybrid systems. It would be a perfect solution to make a hydrogen-fuelled vehicle with hydrogen that has been cracked out of ammonia and stored in the vehicle. The ammonia would then be used to drive the electric propulsion system because an electric propulsion system is highly efficient. That would be a perfect vehicle.
The battery system in this model would not need to be anywhere near the size of a pure EV and anywhere near the weight. For instance, in a Tesla, the whole EV platform under the car is a battery pack that is massively heavy. A clean-burning ICE producing heat-waste from the combustion process could use this heat-waste to warm up the cabin’s interior on a cold day, cool the cabin down via a heat exchanger, and could also be used to cool and heat the battery accordingly for optimum battery operating temperatures.
You can store accessible hydrogen in the form of ammonia (NH3). Unlike hydrogen gas, which requires very low (cryogenic) temperatures to liquefy, ammonia becomes a liquid at –34°C. Ammonia also does so at room temperature and at 9 atmospheric pressures, making it much more convenient to use as a transportation fuel. Ammonia is comparatively inexpensive to produce, and the hydrogen can be separated out using catalysts without undue losses.
Essentially, you have a car with a combustion engine that is burning the hydrogen that is cracked out of the stored ammonia onboard the car to produce electricity. The engine would have an alternator as an electric motor that would power the drivetrain with electricity at close to 99% efficiency. This set-up is known as a Fuel Cell Electric Vehicle (FCEV).
The FCEV above uses stored ammonia that’s cracked onboard the car to produce hydrogen to run the electric drive train – only emitting water vapour and warm air as exhaust, and is considered a zero-emission vehicle. Now that sounds pretty smart, efficient and green to me!
Hyundai and Hydrogen
I’m showing my age a bit when I say that I can remember some of the earlier Hyundai cars – the Hyundai Pony and Hyundai Excel come to mind. Back in the 80s and early 90s, Hyundai cars were light, comfortable, and not really up to the same safety standards as the cars that were produced in other parts of the world. Nowadays, however, the story is completely different, and the South Korean automaker often tops crash safety tests with their vehicles, the vehicles are still comfortable, and the style and technology has won many awards. Hyundai has been always improving to the point where they are now a premium brand, very desirable, and leading the world on many fronts. Key new innovations from the Hyundai Motor Company (HMC) team are exciting and are part of Hyundai’s vision for building a cleaner, greener world that includes vehicles that no longer rely on fossil fuels.
Because of the past couple of years, where covid has taken the world’s centre stage, there has been a big shortage of semiconductors in the auto industry, to the point that some auto manufacturers have had to shut down. Semiconductors are used in the manufacture of electronic devices, including diodes, transistors, and integrated circuits. These devices have a wide application in anything electronic, including laptops, computers, appliances, and, of course, the modern automobile.
Like all vehicle manufacturers, HMC has been affected by the shortage and have had to temporarily suspend some of their factories. Despite the shortage, however, along with Toyota and Tesla, Hyundai is among a handful of automakers that actually increased their global sales despite the chip shortage.
However, Hyundai now plans to develop and build its own semiconductors so that they are not so reliant on chipmakers from other corners of the globe. Hyundai wants to make sure it has a steady supply of semiconductors for their projects on-and-into the future by making its own. It will be the parts and service arm for Hyundai, Kia and Genesis who would play a key role in the in-house development. Stockpiling the electronic chips would be important for Hyundai, so that when other global crisis occur, they will then be in a better position to weather the storm. Toyota and Tesla have already had stockpile contingency plans in place for some time, which has ensured that they fared well during covid.
Hyundai and Hydrogen
Hyundai are part of the Hydrogen Heavy Duty Vehicle Industry Group – comprised of hydrogen industry leaders Air Liquide, Hyundai, Nel Hydrogen, Nikola Corporation, Shell and Toyota. This Group has signed agreements with Tatsuno Corporation and Transfer Oil S.p.A. to industrialize globally-standard 70 MPa hydrogen heavy-duty vehicle high-flow (H70HF) fuelling hardware componentry. But, also, in Incheon, which is just west of Seoul, and in Ulsan, production plants will begin producing the hardware in the 2nd half of 2023 with an annual capacity of 100,000 hydrogen fuel cell systems.
South Korea’s influence on core Hydrogen components will see it as the world’s largest fuel cell production capacity, which will also help the HMC to diversify their business and tap into construction machinery and logistics equipment.
EVs might be the big talking point for some, but it is hydrogen that is the dark horse in the clean-green race. These two new fuel cell plants in Korea will accelerate the hydrogen economy and secure broader global market dominance. I reckon that Australia could be a hub for Hydrogen in the Pacific, don’t you think?
Hyundai’s wide-ranging hydrogen revolution accelerates with the showing of their 500 kW Vision FK sports car prototype and the e-Bogie autonomous commercial transport vehicles. HMG recently announced that it will launch next-generation hydrogen fuel-cell power units in 2023 that will double the power output, halve the cost, and reduce package size by 30%, when compared to current systems. Hyundai has a plan to offer “hydrogen for all” by 2040.
Hyundai’s Hydrogen Timeframe
In case you were not already aware, HMG is the parent of Hyundai, Kia and Genesis. By 2028, HMG says it will have applied fuel-cell systems to all of its heavy commercial vehicle models, including large trucks, significantly reducing transport-related CO2 emissions.
By 2030, Fuel-Cell Electric Vehicles (FCEV) will have achieved price parity with Battery Electric Vehicles (BEV), HMG says. And by 2040, HMG expects hydrogen to be available for everyone, for all vehicle types, and globally, triggering a lifestyle revolution.
Models for the Future
The Vision FK sports car is a 500 kW, hydrogen-powered high-performance prototype coupe that is capable of accelerating from 0-100 km/h in less than 4 seconds, while still offering a range of 600 km between top ups. The Vision FK’s fuel cell unit carries N Performance branding, suggesting that it would be a future Hyundai N model rather than a luxury-focused Genesis. HMG’s head of R&D, Albert Biermann, would not be drawn on when the Vision FK would go from prototype to production, but he did confirm that the next-generation Nexo fuel-cell SUV will launch “in the second half of 2023 followed by a Staria” The Staria is a people mover recently launched in Australia. “We are also working, of course, on fuel-cell cars for Kia and Genesis. That will take a little longer time. After 2025 you can expect further fuel cell applications.”
The e-Bogie commercial application is a fuel-cell-powered autonomous trailer that could revolutionise commercial transportation. Biermann also stated, “We are working full throttle on commercial [first] because that is the most effective way to avoid CO2. We are putting a lot of focus on fuel cells, not only for passenger cars but also for commercial vehicles.”
HMG’s Chairman, Euisun Chung, is even more emphatic about the significance of hydrogen fuel cell applications toward a sustainable future. “This may be the last train to a Hydrogen Society, and time is running out. Hydrogen is the most powerful and pragmatic solution to overcoming environmental challenges. Hydrogen mobility will accelerate human progress.”
He went on to say that Australia may have a role to play. “We know Australia is a country with vast and abundant renewable energy. We are exploring business opportunities in Australia with our partners. Our goal is to build a sustainable ecosystem for [a] global hydrogen society.”
He also said that, “We will not immediately phase out internal combustion engines (ICE) commercial vehicles, but we are not starting any new developments of ICE. No new models and no new platforms. Everything will go forward with BEVs and FCEVs.”
Interestingly, according to Hyundai’s head of fuel cell development, Mr Saehoon Kim, FCEV technology has one huge advantage over BEVs: “The main problem with [a] BEV is the scalability of batteries. For a small EV it’s okay, but for commercial large scale [operation] the question immediately is …. How are we going to stack all these batteries with the heavy weight, and who is going to be happy with the low range? So, in this case fuel cell fits perfectly.”
Hyundai’s heavy commercial fuel cell program is already well advanced. In mid-2020, 45 Hyundai Xcient fuel cell trucks began commercial operation in Switzerland. Biermann stated that the trucks covered 210,000 kilometres per month and have saved 130 tonnes of CO2 emissions every month in operation.
The key to Hyundai’s commercial strategy is its third-generation fuel-cell system, which is in the final stages of development. Hyundai expects to launch two units in 2023, one producing 100 kW for passenger vehicles and SUVs (including the next Nexo and Staria FCEVs), and a 200 kW unit for commercial applications. It has been said that by using two fuel-cell systems for trucks Hyundai can provide around 350 kW, which is equivalent to the power of current diesel engines used in trucking logistics.
This is all very exciting news and one that I have welcomed hearing. I’m a fan of the new hydrogen fuel-celled vehicle technology moving forward. This is Hyundai at its best, and we can only continue to watch this space.
Current Hyundai achievements:
The current ICE Hyundai i20 N has been crowned champion of Top Gear’s Speed Week. The 26 fastest cars in the world participated in Top Gear’s Speed Week 2021. It was the Hyundai· i20 N’s sharp handling and everyday usability that stood out to those in the Top Gear team.
BMW Brilliance
BMW has always been a favourite standout brand of mine, and BMW is forging new models and technology even as we speak. It has been a bit of a gruelling year-or-two with the covid shenanigans, and car manufactures are only one small segment of the global economic pie to have taken a sizable hit. The shortage of semiconductors has been, and still is, a problem because cars rely on these items for controlling anything from your electric windows to all the fancy driving assistance aids. However, the winds are changing, and the rebound is occurring. Luxury car marques like BMW seem to be doing very well, and even with the electronic chip shortages being a bit of an issue it seems that BMW will get through this period in fairly good shape. There is always a talking point re this special car marque; sometimes the designs might look great to some and not so flash for others, but there is always a gem being turned out from this great team of motoring designers and manufacturers. BMW cars are more often than not great to drive, good looking, practical and advanced cars.
In this covid recovery period, various chief financial officers recently mentioned that, for now, luxury marques like BMW would consciously undersupply demand levels, which seems a prudent, sensible path to take, as BMW new car prices are holding up very well – quite bullish in fact. The increased pricing power has already trickled down to the bottom lines for BMW and Daimler. Mercedes achieved a 12.2% return on sales in the last reported quarter, which was up from 8.4% in the same period in 2018 (2018 being of a period not affected by the pandemic or diesel emissions litigation costs). BMW achieved a 16% return on sales, which was up from 8.6% in 2018. BMW also reported a $5.7 billion net profit in the second quarter of this year, suggesting global auto markets are continuing to recover from the pandemic — particularly when it comes to luxury cars like BMW and Mercedes.
This is great news for BMW and car lovers in general, but what’s new in BMW’s box of tricks? A very cool thing that BMW revealed at the recent Munich Motorshow (early September 2021) was to be found in the BMW M4 corner, where this manic machine, with its impetuous acceleration, showed a jaw-dropping minty green sheen to its beautiful, sexy exterior. The M4 Competition wore a Mint Green paint job and sat upon gorgeous bronze 20-inch rims. Both of these options are available as part of the brand’s expanded BMW Individual customization line, which you can find on BMW’s online configurator, where more than 130 other paint options and eight different wheel options are available. This latest BMW M4 Competition also had a new fibre front splitter, a restyled rear bumper, a rear wing, and some unique side skirts that were all made with carbon fibre. Carbon fibre interior seating surfaces and trim pieces are also part of the online configurator. So, try before you buy!
The Munich motor show also allowed the public to preview a hydrogen-electric BMW X5 that is due to enter very-limited production in 2022. This is an exciting moment because the vehicle was first previewed in 2019 as the i Hydrogen Next concept. It’s currently in the prototype stage, and early this month it was confirmed with the go ahead, going by the name of BMW iX5 Hydrogen.
A hydrogen-electric vehicle is like a battery-electric vehicle, but instead of drawing power from electricity out of the charged battery the hydrogen-electric vehicle relies on a hydrogen fuel-cell stack to produce electricity power. BMW’s iX5 Hydrogen has the hydrogen fuel-cell positioned up front where it draws hydrogen from 2 tanks, one in the X5’s transmission tunnel and another under the rear seats. The tanks are made from carbon-fibre-reinforced-plastic and can hold about 5.9 kg of hydrogen at more than 10,000 psi. Tank filling takes only a few minutes. The hydrogen fuel-cell combines hydrogen with oxygen from the air to create electricity. This process only has water (H2O) as a by-product – Wow! The electricity primarily powers a single motor at the rear axle but is also used to charge a small battery that steps in from time-to-time to deliver extra grunt to the motor during high-load situations.
The BMW iX5 Hydrogen will have a total system power output of 275 kW. The hydrogen fuel cell, on its own, generates about 125 kW. The vehicle’s aerodynamically shaped 22-inch wheels are wrapped in a new Pirelli tyre that is made from natural rubber and a wood-based synthetic fibre known as rayon. These two materials replace much of the petroleum-based synthetic rubbers used in modern tyres.
The extensive field testing has already started in earnest within Europe. Particular focus points have had the engineers examining how effectively the CO2-free drivetrain works in real-life conditions. Also, they are measuring metrics which include reliability, safety, and efficiency during everyday conditions to ensure that the new model is perfect for mass production. Hydrogen fuel cell technology has the potential to supplement internal combustion engines, plug-in hybrid systems, and battery-electric vehicles. The BMW iX5 Hydrogen has hydrogen tanks that can be filled quickly in only 3–4 minutes.
BMW states that the small batch of iX5 Hydrogen models that are destined to be built in 2022 will only be used for demonstration and testing purposes. BMW doesn’t expect to have any hydrogen-electric vehicles at dealerships until 2025 at the earliest and depending on the direction that the automotive markets take.
Newest off the showroom floor is the all-new BMW iX3 with its refreshed exterior design. The new BMW iX3 has a sexier appearance and introduces the M Sport Package as standard. BMW has achieved an impressive CO2 emission assessment for this next-generation iX3, and the vehicle boasts an exceptionally efficient drive system. Extensive use of secondary raw materials in the manufacture of aluminium castings and thermoplastics combines with the new iX3 boasting an absence of rare earth materials and the use of more green electricity in its production.
The BMW iX3 has a kidney grille that is larger still, and it has a single-piece frame that comes in Pearl-effect Chrome with blue accents to match with the BMW i styling cues. Its headlights have been made slimmer. It also boasts 19-inch black aerodynamic wheels, an automatic tailgate, adaptive suspension, a heated steering wheel, a panoramic sunroof, and Smartphone integration with Apple CarPlay and Android Auto.
BMW is a bit of a landmark in the automotive world, a benchmark, the perfect blend of performance, luxury and practicality. In the future, BMW wants to be ready to supply customers with their powertrain of choice, whether it be gasoline, diesel, battery or hydrogen. In the case of hydrogen, BMW sees it as an opportunity for customers that favour long-distance driving or who happen to live in regions without adequate battery recharging infrastructure.
I have so many favourite BMWs and other cars, including the 4.0-litre Falcons, which have rolled our roads over the last few decades of motoring, but let’s not be nincompoops and let’s embrace new ways of automotive power; let’s embrace the new BMW i technology.