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.

Comments

Re:I wanted to RFTA

[Scarred Intellect]

https://www.reuters.com/article/us-mazda-strategy-idUSKBN1AO0E7

Or use the link in the title of the article

Link to the actual article

[denbesten]

https://www.reuters.com/article/us-mazda-strategy-idUSKBN1AO0E7

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.

Re:Too little, too late

[Jack9]

> Fossil fuel vehicles are phased out in three years worldwide, no matter where you go

What do you mean by phased out? How much do you want to bet that fossil fuel vehicles will not only still be produced, but used more than electric in 3 years worldwide? I will be happy to escrow a few thousand dollars on my prediction (that's all I can spare and I will use the winnings for financing an electric vehicle). We can use active US car registrations as a measure, if you really want to go forward.

How many US families (from a very wealthy nation) do you think have the economic capacity to buy new electric vehicles, much less 2 year depreciated ones? How many of those will there be? Where's the infrastructure to power these vehicles? I know where many electric stations are from San Diego, CA to the Oregon border but you drive right by a Tesla facility who made that happen. In the rest of the northwest US, not so much. India? Hah.

I don't think your statement is well considered. Perhaps you have a skewed idea of what humans will tolerate to maintain an illusion of normalcy (spoiler: almost anything short-term to avoid committing to change).

Re:Too little, too late

[rickb928]

"Fossil fuel vehicles are phased out in three years worldwide,"

Um, no. The used car market makes that unlikely.

And when my 80 mile a day commute doesn't require fast charging at work to make it home with a 5-10% margin, most likely impacted by unpredictable traffic, I'm in. Or, do the other, mch harder thing - make my work, job stability, and income possible closer to home. I'll fix the 'problem' with more efficient cars over the next 10-12 ears, then 'retire'. Maybe.

Or, alternatively, start using honest, accurate data to judge climate change and influences. Go where the honest data leads you.

Re:A better buggy whip?

[ickleberry]

Even before 1888 buggy whips were known to be pretty much useless; people had long figured out it was more effective to whip the horse rather than the buggy

Worst trend in webdesign

[Optic7]

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.

Re:Too little, too late

[WillAffleckUW]

Not in the West.

If you live in the West, 40 percent of your contribution to climate change is from transportation.

Which is one of the reasons why we lead in electric and hybrid purchases.

Re:IC engine efficiency is hardly 20%

[Strider-]

The issue is that the NOx pollution from the Diesels is due to its thermal efficiency. In a properly running diesel, the flame in the cylinder is so hot that it causes the N2 from the atmosphere to momentarily disassociate, which in turn combines with the left over oxygen, producing oxides of nitrogen. By definition, diesels run extremely lean, so there's plenty of oxygen for this to happen, and 80% of the charge is nitrogen. Anyhow, the net result is that diesels tend to produce the most NOx at the most efficient point, which is right around their torque curve.

Gasoline engines, on the other hand, ideally operate at the stochiometric ratio; the oxygen in the charge air is completely consumed by the combustion. It sounds like Mazda has achieved diesel-like efficiency while maintaining the gasoline ratios, meaning that there is no left over oxygen to produce NOx. It'll be interesting to see if it works out and is reliable.

Re:I'll Be Amazed

[Strider-]

The bigger problem I would expect, is getting it to pass emissions. I would guess that it'll do great on CO2, but it'll blow NOX worse than a Diesel.

If they get their fuel/air mix right, there won't be a NOx issue as there won't be enough left over oxygen to produce NOx in significant quantities. Modern diesels produce it due to the high flame temperatures, and because by definition they run extremely lean. If they're running it like a gasoline engine, where the goal is to completely consume the oxygen in the charge air, then the NOx issues should be relatively well controlled.

Oh please

[fyngyrz]

the overall cost of producing the electricity, in terms of pollution aren't that far apart [for fossil fuel ICEV and charging current for EV].

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.

Re:IC engine efficiency is hardly 20%

[drinkypoo]

Gasoline engines don't run ideally. They run rich-lean-rich-lean. Then the catalyst averages it out, more or less.

Re:Too little, too late

[Rei]

90 minutes? What year is this, 2005? Supercharging is half an hour to 80%. And herp, derp, humans have to eat at some point.

And I love how much you're willing to damn an EV for even the slightest increase in long-distance trip time (most people taking 500 mile trips rather rarely), but are perfectly content to need to at random intervals in your normal everyday life have to divert from your schedule and go out of your way to a gas station, stand outside in whatever weather there is and pump gasoline (which gives off carcinogenic fumes) in a "shithole". And FYI, gas stations are much more likely to be "shitholes" than superchargers. Here's a random list of supercharger photo pictures (flickr, so it should be by and large just random people's snapshots). How much of a "shithole" do they look like to you?

Re:Convenience of electric - except in winter

[AmiMoJo]

AC is better for keeping windows mist free than heat. My Leaf has a heat pump and AC system, so I normally blast both for maybe 20 seconds to fully de-mist the car when setting off (often automatically on a timer while it's still plugged in, so doesn't even touch the battery) and then just keep heat and AC on the minimum setting to maintain.

It ends up reducing range by 5-10%, depending on conditions and driving style.