VW Faces $17B Fine for Emissions Scam

Since normal driving cycles of the Volt use 35+ miles of EV operation, the car would likely achieve SULEV, on the road, without the device. A cold start spike of CO isn't a a hard thing to average out.

 

What changed to make it qualify for HOV eligibility?

 

F8L posted what GM did to give it HOV rights some time ago but I can't remember where.
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It was as simple as that. Just pump more air into the exhaust. Has that been tested and verified to be working in the real-world?

Chevrolet engineers modified the Volt’s engine and exhaust components—specifically the catalytic converter—by adding a secondary air-injection pump that streams ambient air into the exhaust stream to increase its ability to remove pollutants. The additional oxygen helps the catalytic converter remove even more pollutants.​

Green Car Congress: Chevy Volt gets a Low Emissions Package for California; HOV lanes access

 

Well that explains a lot of why they get crappy gas mileage. They are not running a lean enough cycle to generate NOx to purge the hydrocarbons. . . . dummies!

Bob Wilson

 

Volkswagen's Excess Emissions Will Kill 59 Americans: Study


Porsche ‘Surprised’ Cayenne Diesel Uses Defeat Device And Stops All Sales
Executives at Porsche say they had no idea the Cayenne Diesel used a defeat device, and have announced that they are discontinuing all sales immediately. “Late this morning, Porsche Cars North America, Inc. received a notice of violation from the United States Environmental Protection Agency (EPA) regarding the 2015 Porsche Cayenne Diesel,” the company said […]

 

The study: http://iopscience.iop.org/article/10.1088/1748-9326/10/11/114005/pdf

. . . Excess emissions from 2016 onward are calculated as the difference between the estimated real driving emissions and the EPA Tier 2 Bin 5 standard of 0.043 g km−1 (40 C.F.R. §86.1811–17), representing the difference inNOx emissions that could be expected if these vehicles were brought into regulatory compliance. . . .​

Close enough to the 44 mg/km I'd calculated earlier.

Bob Wilson

ps. So one of the TDI advocates asked 'How many additional people die ... due to mining rare earths ..." and I replied:

Well you are in luck as this article shows how Prius owners are counting deaths today.​

 

The Prius is the more aerodynamic car, not the Jetta.

I would still say that diesels are the most efficient of *engines*. Not the most efficient of *cars*, but the engines are relatively efficient. Your chart is mainly comparing cars, not engines.

XT1097 ?

 

Great ... glad that efficiency thing is working for you. You'll save a lot, on your way to the hospital
Big polluters: one massive container ship equals 50 million cars

 

A better coefficient of drag but also need the crossection area. It is easier to check the 'roll down' coefficients in the EPA/CARB data.

	model	A (lbf)	B (lbf/mph)	C (lbf/mph**2)
1	Prius	19.917	.13911	.016365
2	Jetta	33	.290	.0171

Source: Test Car List Data Files | Cars and Light Trucks | US EPA

Bob Wilson

 

Vehicle Coefficient of Drag List - EcoModder

XT1097 ?

 

Yes but when comparing diesel and petrol you are comparing apples and oranges, diesel has more energy per gallon (~12%) and emits more CO2 per gallon. One gallon of distilled fuel is not simply one gallon of crude, yes distilling efficiency may be better (or not) but again this is calculated based on energy content not volume.

 

What does the high-sulfur bunker fuel commonly used in ships in open water have to do with his car, which uses far lower sulfur fuel?

 

Did you look at the replies yet?

 

Some news, re VW exaggerating mpg ratings:

Volkswagen shares tumble again after company admits understating fuel consumption - Business - CBC News

I kinda wish the EPA guys could take a breather, and cast an eye at 3rd gen Prius and the clogging EGR reports. That effectively hamstrings a pollution control device. It triggers a code though.

 

I wonder what @GrumpyCabbie is seeing about the EU Commission raising the NOx levels?

Bob Wilson

 

The morning will be soon enough. Then suggest something about glass houses and rock tossing.

Bob Wilson

 

first, I'm not saying VW's cheat isn't a travesty - but just like raising EPA ratings on SUVs - it's equally - if not more important to remember to take care of the "big fish". If one cargo ship (& there are tens of thousands) is the same amount of pollution as 50 million cars - it doesn't take high school math to see which just as important if not more crucial to slowing pollution related deaths. Sorry I didn't set that point out more clearly. What with Europe looking like they're going to give a sort of free pollution pass to VW - it just reminds me of much of the maritime industry's free pass ... which is even larger. No better time than now for VW to cry foul. Volkswagen could easily claim that, "After all, cargo ships are way worse" .
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Yea but you forgot to include the dying nickel miners in Sudbury; fleets shipping nickel foam to Europe; fleets transporting nickel to China where slave labor assembles Prius batteries in coal powered factories; shipped in more fleets to Japan, and; fleets shipping the Prius to the USA. That should be 90% of all shipping in the world supporting Prius.

Bob Wilson

 

Ohhhh ok - i was trying to keep the fuel oil dovetail strictly linked to that .... oil based fuel toxins ... but i'll yield to your point

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