Mazda Announces Breakthrough In Long-Coveted Engine Technology (reuters.com)
An anonymous reader quotes a report from Reuters: Mazda Motor Corp said it would become the world's first automaker to commercialize a much more efficient petrol engine using technology that deep-pocketed rivals have been trying to engineer for decades, a twist in an industry increasingly going electric. The new compression ignition engine is 20 percent to 30 percent more fuel efficient than the Japanese automaker's current engines and uses a technology that has eluded the likes of Daimler AG and General Motors Co. Mazda, with a research and development (R&D) budget a fraction of those of major peers, said it plans to sell cars with the new engine from 2019. A homogeneous charge compression ignition (HCCI) engine ignites petrol through compression, eliminating spark plugs. Its fuel economy potentially matches that of a diesel engine without high emissions of nitrogen oxides or sooty particulates. Mazda's engine employs spark plugs under certain conditions, such as at low temperatures, to overcome technical hurdles that have hampered commercialization of the technology.
But the link is for Tesla's junk bonds.
Somebody please fix.
Mimetics Inc. Twitter
Read the draft form of the climate change report Trump is trying to bury.
All those floods, storms, heat waves, and other events are being caused by humans, using fossil fuels.
This is dead tech. Fossil fuel vehicles are phased out in three years worldwide, no matter where you go. Just run your current gas car into the ground, and then buy a cheaper all-electric car to replace it.
No amount of tech will change that.
-- Tigger warning: This post may contain tiggers! --
Sounds similar to diesel, and I'd wondered for a long if or when anyone would ever use compression ignition with gasoline. This is fantastic news.
It appears that the editor *actually read* the article, causing Reuters to scroll to the next story and change the URL. Will wonders never cease.
Hey everybody, look at this sweet technology we've got...we'll call it mini-disc!
~Sony (right before the ipod destroyed it)
And Slashdot brings me news I read on Reuters this morning. Yay!
I'll be astonished if Mazda have created a HCCI engine, commercialise it and make it reliable. Petrol is simply too volatile a fuel to control this with.
Colour me cynical but with the long term future of automotive propulsion increasingly looking as if it lies in various kinds of electric car, isn't pouring lots of resources into a 30% more efficient petrol engine in 2017 somewhat akin to inventing 'a better buggy whip' in 1888 (the year Mrs. Benz made her famous 106 km 'automobil' journey in case you slept through history class)?
Now that we know how difficult it is to cut the emissions on diesel engines during start up and some driving conditions, it is probably a good thing. But it is not going to slow the long march towards hybrid and electric cars. It is more along the lines of streamlining steam locomotives.
sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
Electric cars are just more convenient. Once their range is close enough to gas no one will want to buy a new fossil fuel car. A few years after that gas stations will start disappearing. Once the stations and infrastructure start to die out the end of gasoline cars will be fairly quick. The one area where the internal combustion engine has a huge advantage is winter driving. Heating a car with an electric battery kills your distance and there aren't many good solutions. Insulation only gets you so far because you also have to dry the air in the car out or else the moisture will condense on the windows (try driving a car on a -20C morning with 3 kids in the back)
The never-ending single page is the worst trend in webdesign today, or perhaps ever. I was trying to reach the footer of some website the other day to get to info like "about", "contact us", or whatever, and it was absolutely impossible.
Now gasolinegate. Because of course gasoline engines don't fake on emissions testing results, or do they?
Only a RX7 fan would go this route.
Mazda new wankel engine patent (Mar 16)
http://pdfaiw.uspto.gov/.aiw?P...
Story on patent
http://blog.caranddriver.com/n...
Animation of Wankel engine
https://www.youtube.com/watch?...
Bicycles are great. Traffic is so shitty where I live though I stopped riding mine.
I've lost track of all of the breakthrough technologies and game changers that have been announced in the news and here on Slashdot that I've never seen come to fruition. IBM made a major announcement re:quantum computing just before sharing that their profits were down and their stock took a plunge. Does anyone remember the story about a guy who came up with a new way to make steel stronger and lighter (no, not the MIT story from earlier this year or the nanotech one from a couple of years back)? Six years later and we are still talking about possibilities.
I hope this new perpetual motion invention makes it to retail soon. OTOH, I'm really more interested in the hydrogen powered car anyway.
So... dinosaurs have announced one one of them has figured out how to be 20 to 30% more efficient?
What a lovely historical footnote that will make.
The transition to electric vehicles is at a classic inflection point. Anyone with half a brain knew this was coming, it was all a matter when batteries would get cheap enough to trigger it, and we're just about there. The Bolt, the Tesla 3, and the Leaf 2 will all be far more appealing to mainstream consumers than were earlier vehicles. (I've been driving a Leaf for over 4 years, and I love it. But I plan to replace it with a Leaf 2 next Spring.)
The advantages of EVs (vastly lower fueling and maintenance costs, quiet, great driving experience, no stops at smelly gas stations, etc.) will overwhelm liquid fueled vehicles as soon as people can buy one for roughly the same price that carries no fear (rational or otherwise) related to range and recharging time.
Dateline Alabama, August 2017:
This reporter is delighted to deliver the scoop that finally, buggy whips will now be available with carbon fiber handles and artificial spider-silk lashes. Order early to be sure to get yours in time for school!
I've fallen off your lawn, and I can't get up.
There was a tale about how an inventor claimed that he could get higher fuel mileage by premixing and heating the fuel with oxygen in the carburretor at high pressure then injecting it into the pistons. But he was bought out by the oil companies.
Yeah, actually the absolute pollution levels for these are quite far apart, and getting further apart every day. That's without even counting systems specifically designed to supply short-ride vehicles locally via solar. The efficiency of power production for vehicle charging at a fossil-fuel power plant, even after transmission losses to the charging point, is far better than an ICE can do on a per-vehicle basis. But don't let the facts stop you from spreading your fud. It seems to be the new normal anyway.
I've fallen off your lawn, and I can't get up.
Seriously, if you drive mostly shorter trips and have occasional need for a long-range vehicle, it may very well make more sense to rent it than drive it all the time.
Personally I drive a smallish car and own an a covered cargo trailer. The odd time that I need a minivan or pickup truck I rent one.
The much "coveted" technology, if it works, would bring diesel engine efficiency to gasoline engines. That is all.
Mazda's presentation also had an example output curve for their SkyActiv-X engine, apparently it also produces diesel-like torque as well. It also does quite well with low-octane gasoline, as octane rating is irrelevant to a compression-ignition engine.
Depending on how frequently you need to make long trips it may make sense to buy a gas car. It may also make sense to buy an electric car for local trips and rent a gas car for longer trips.
The tradeoff between the two depends on the relative prices of the cars and their "fuel", as well as how frequently you make long trips.
The current Americas Cup boats are dual-hull hydrofoil boats with semi-rigid sails. Depending on what direction they're travelling relative to the wind they can reach speeds of 3-4x the wind speed.
I get to have a jake brake on my car?!?! :(
Maybe I just don't understand engines well enough
I tend to rant.
Wait, like my Diesel car? Yes, compression ignition engines are more efficient. I get upwards of 50MPG in my 2003 Passat TDI.
30 years ago.
1, Wankel Rotary
2. Miller cycle
3. Compression
Imagine a single drive train hybrid using this tech as the charging engine, running only at its most efficient speed. This could be the low-cost transition to electric that the industry has been waiting for.
From Engineering Explained https://www.youtube.com/watch?...
Did you know 80 to 90% of the moderators on slashdot wouldn't recognize a troll even if one dragged them under a bridge.
You just invented the Diesel engine!
HCCI engines really like constant load. Skyactiv-X might well be best employed in a car that also has a battery. If they run it in a car without a battery, they might have more success going camshaftless, like the engine Koenigsegg is building for Qoros. That way a computer could instantly compensate for the changing conditions.
I noticed it doesn't say 20-30% better MPG, just more efficient than current engines. But what does that mean for actual MPG? I have a 2010 Mazda 3, it gets 23mpg around town (ie, daily traffic).
"I stop to eat at roadside inns which are likely never to have charging points,"
It's much easier for a business to put in a charging point connected to their existing electric lines than to install a gas pump and underground gas tanks. So why would a roadside inn not install charge points to increase (or maintain) business?
With EVs, any roadside business can now be a gas station -- but without dealing with the costs or regulations.
A 21st century issue: the irony of technologies of abundance in the hands of those still thinking in terms of scarcity.
Oil isn't created by dead trees, this fact is well known in some scientific communities.
We know this because we've drilled deep into area of earth that we know never had any plants or animals, and there were large amount of oil.
Oil is created deep within the planet then oozed towards the crust.
I have been waiting for this to happen, but I expected it later and then in some kind of rotational motor (not Wankel) where knock doesn't really exist and you can boost compression until self ignition.
When more cars are EV, parking lots in shopping malls or at workplaces will be outfitted with Universal Chargers which will charge a vehicle as it sits while the driver is off doing whatever...
Your straw man objection is sopping wet, like your besotted lack of imagination.
PlaynBass
Thank you for your calculations. They are very informative and show us where we need some new ideas to match the new technologies.
Just on the face of it, rather than use the same electric tractor for the entire trip, a cargo company could set up the equivalent of Pony Express stations and merely swap out a fully charged tractor for the depleted tractor. Probably could be done in the time the driver would need for a bathroom break or to grab some lunch.
There might even be third-party companies that do nothing but recharge the EV tractor units for a number of cargo haulers. Or this would be accomplished by vertical integrating a network of service yards at convenient distances apart. Or some combination of the logistical models, some of which have not even been thought of yet.
I shouldn't be so surprised at the reactionary lack of imagination of so many commenters on /.
I blame their lack of imagination on the planned destruction of our once excellent public school system by reactionary and self-serving Luddites in business and government, who consistently sabotage progressive ideas in order to protect their own sinecured policies of paternalistic and privileged tradition.
PlaynBass