FTA: "That legal assessment of the defeat device scandal seems to have held up as the researchers analyzed the cars’ code. The VWs and Audis in question checked for a number of parameters at startup, and if a lab test was a possibility, the car would start with that assumption, enabling full emissions controls. The code permitted the car “to operate... as if two distinct personalities took turns controlling the vehicle,” the paper’s authors wrote."
https://arstechnica.com/cars/2017/05/volkswagen-bosch-fiat-diesel-emissions-cheats-cracked-open-in-new-research/
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LEGO Americana Roadshow: Building Across America I just checked out this traveling exhibition from LEGO and was quite impressed. The scale ... -
Merry Christmas, everyone!
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When we let politics trump science, people are needlessly put in harm's way. http://arstechnica.com/science/2017/01/self-censoring-fears...
You'd think that "clean diesel", like "clean coal", should have triggered a cacophony of alarms; it's a contradiction in terms.
ReplyDeleteSeems like there's an inherent problem with standardized test environments that are easily distinguishable from real-world environments. And the temptation to cheat becomes irresistible when there are huge rewards and a perception of impunity. Lab tests need to be corroborated by real-world testing.
arstechnica.com - Google deprecates Octane JavaScript benchmark, because everyone is basically cheating
I've been surprised that the emissions tests don't also test various power and torque parameters too (i.e. in conjunction with the emissions tests), since it should be obvious to anyone who's watched any heavy equipment work that the worst emissions happen under the heaviest loads. I suspect, but have less visible evidence for, gasoline engines suffering similar issues too.
ReplyDeleteIf I'm not mistaken this would have caught the cheaters with their pants down, so to speak, since the reason for cheating has been to gain better power and torque.
Jim Douglas As part of the PR , they elaborately explained Europe had much higher standards for Diesel Fuel contaminants. There were lots of articles blaming lax oil company loving America, for missing out on the clean Diesel revolution.
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