IEEE Spectrum‘s transportation protection drew slightly below half 1,000,000 guests in 2024. Readers got here to be taught the newest information about advances in electric vehicles and battery know-how, sustainable vitality alternate options, transit infrastructure and logistics, and AI and rising dangers. One in every of our extra common articles reported on a problem on the intersection of know-how and athletics. Learn on to see our round-up of our most generally learn transportation articles of 2024.
ZF Friedrichshafen
Engineers at ZF Friedrichshafen AG, one of many world’s main suppliers of automotive elements, found out tips on how to make a compact, powerful electric motor that has excessive energy density abut doesn’t have rare-earth everlasting magnets. The upshot: The innovation might neutralize China’s market place, which relies on the truth that 95 p.c of the worldwide provide of uncommon earths are mined there. Issues over the problem of constant to decarbonize transportation if China have been to resolve that nobody else could have uncommon earths might evaporate if ZF’s motor goes mainstream.
Brightline West
A brand new rail enterprise goals to ferry passengers between Las Vegas and the suburbs of Los Angeles sooner, extra effectively, and with much less environmental influence than making these journeys by automobile. The brand new hall, which its creator says needs to be prepared in time for the 2028 Summer Olympic Games in Los Angeles, will turn into solely the third rail line in the US whose trains ever attain the 200-kilometer-per-hour mark—the unofficial minimal pace at which a practice is taken into account to be high-speed rail. Within the U.S., even trains constructed for pace are slowed to a relative crawl as a result of they need to yield the precise of option to slower freight trains on shared rail infrastructure. However maybe Brightline West, the purpose-built L.A.-to-Las Vegas line might be a bellwether for extra efforts to get People off the roadways and onto railways.
iStock
Nuclear power may be suitable for the behemoths that carry the burden of worldwide commerce on their decks, and it needs to be a welcome different to the diesel gasoline that at the moment retains their engines working. Now that the International Maritime Organization has set a net-zero emissions objective that the delivery trade should attain by 2050, diesel must be phased out. Some trade gamers need to ammonia, batteries, and hydrogen, amongst different choices for powering ships. However there’s a rising refrain of voices pushing for nuclear power, a zero-emissions know-how that already plows the oceans. The advantages: Nuclear-powered ships can go years with out refueling; they don’t want large gasoline tanks, which opens up extra space for cargo and passengers; and the reactors themselves have gotten safer and easier to function with every new era.
QuantumScape
Strong-sate batteries are anticipated to convey severe efficiency enhancements as soon as they’re commercialized and ultimately exchange as we speak’s lithium-ion batteries. However the development cycle for such innovations normally features a prolonged interval throughout which progress hits a plateau, and hopes for a fast transition from lab to business manufacturing are dashed. A quote that sums it up got here from Bob Galyen, proprietor of Galyen Vitality and former chief know-how officer for the Chinese language battery large Modern Amperex Know-how Ltd. (CATL), the world’s largest battery producer. “Strong-state is a good know-how. However it’s going to be similar to lithium-ion was by way of the size of time it would take to hit the market. And lithium-ion took a very long time to get there.”
Joe DelNero/NREL
A consortium of U.S. federal businesses pooled their funds and big selection of experience to reinvent the emergency vehicle. The hybrid electrical field truck they’ve provide you with is carbon impartial. And within the aftermath of a pure catastrophe like a twister or wildfire, the automobile, known as H2Rescue, can provide electrical energy and potable water to survivors whereas appearing as a temperature-controlled command heart for rescue personnel.
Michal Cerveny/AP
It’s no shocker that know-how’s attain extends to athletic competitors. Officers on the world’s premier biking occasions, fearing that racers in search of any benefit they will acquire over their rivals will go overboard in enhancing their our bodies or their bikes, at the moment are looking out for two-wheelers with cleverly concealed electric motors. The illicit tactic, known as “motor doping,” is threatening to taint the game’s legitimacy as a lot as performance-enhancing drug scandals have. On the Paris Olympics this previous summer season, officers deployed electromagnetic scanners and X-ray imaging to fight it. The cleverly hid motors will be laborious to identify—they should generate solely about 30 watts of additional energy to illegitimately propel a rider onto the medal stand.
iStock
After weighing the professionals and cons of a number of several types of EV battery cells—lithium-ion, these with ilicon of their anodes resembling silicon-polyacrylonitrile (SiCPAN) and silicon nanowire (SiNW) cells, strong state cells, and lithium-sulfur cells—researchers on the Polytechnic College of Turin, in Italy, discovered that lithium-sulfur cells would possible have the least environmental influence if scaled as much as industrial ranges.
ZF
A trio of specialists from the Oak Ridge National Laboratory in Tennessee wrote for IEEE Spectrum aboutan interconnected web of dilemmas looming over EVs. Combating climate change calls for that humanity kick its dependancy to fossil fuels. Attaining that can require a close to complete shift from inside combustion motors to electrical traction motors for transportation. However as a result of almost all such motors depend on magnets that include uncommon earth components—90 p.c of which come from China—automakers outdoors of China are staring down the barrel of provide chain instability. What will be finished to sidestep that vulnerability? The authors decide up there, describing huge efforts underway geared toward designing and testing superior electric-vehicle (EV) motors that don’t use uncommon earth components (or use comparatively little of them).
Qilai Shen/Bloomberg/Getty Photos
BYD, the Chinese language battery large and new entrant into the ranks of automakers, is making moves as a way to strike its rivals on the highest and lowest ends of the market, the place they’re most susceptible. BYD’s new electrical supercar, the $236,000 U9, boasts efficiency rivaling hypercars such because the Bugatti Rimac Nevera, although the Bugatti’s sticker value is an order of magnitude larger. BYD’s elegant, money-saving use of lithium iron phosphate battery cells makes the 947-kilowatt (1,287-horsepower) U9’s value level doable and in addition permits the corporate to promote a plug-in hybrid that undercuts the costs of stalwarts on the financial system finish of the market together with the Toyota Corolla. What’s extra, a commuter within the $11,000 Qin Plus DM-i can drive for 55 kilometers on battery energy alone earlier than the automobile switches to gasoline propulsion.
Alecsandra Drǎgoi/DSIT
On this trade evaluation piece, Azeem Azhar, founding father of the analysis group Exponential View, pulls no punches. He says “I’ve lengthy argued that self-driving cars are metaphorically miles away from being a actuality. For years, I’ve tried to supply a tonic to the rah-rah hype that carmakers have been foisting upon us by way of advertising. He recollects having written, in an article printed in MIT Know-how Evaluation, that, “KITT, the automobile from [the TV show] Knight Rider, will stay the gold commonplace for autonomous vehicles. Autonomous automobile pilots will turn into more and more formidable, however the real-world hurdles will nonetheless take time to navigate, even with pleasant metropolis regulators. None will ship to the general public in 2018.”
However the pessimist has been transformed. Azhar now says, “That was then, and that is now…I’m altering my thoughts about self-driving automobiles. Removed from being a “pointless distraction,” they’re almost prepared for prime time. And robotaxis are main the cost.” And he proceeds to again up this new assertion with strong statistical evaluation.
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