The scandal over VW cheating pollution emissions tests in the US is casting a cloud over the whole car industry. By Russell Hotten Business reporter, BBC News VW has had a major push to sell diesel cars in the US, backed by a huge.
The chief executive has quit after the firm admitted diesel cars were designed to cheat in tests. How did the 'defeat device' work and what..
Business interactive volkswagen emissions scandal explained diesel cars -- expeditionIt has known security flaws and may not display all features of this and other websites. The trucks would slowly emit more and more NOx as they traveled longer distances at constant speed, something that labs couldn't catch. These are external links and will open in a new window. Which Cars Are Affected? The chief executive has quit after the firm admitted diesel cars were designed to cheat in tests. At the same time, diesel technology has been gradually getting cleaner through a combination of lower-sulfur fuel, advanced engines, and new emission-control technology. VW licensed the technology—but then chose not to use it, possibly because of changes at the top.
Because this process is predictable, it's easier to game. We found the best stock brokers vineland horse farriers online trading. Police have searched the group's head office in Germany, in a bid to secure documents that could shed light on which employees were responsible for cheating the pollution tests. The software was modified to adjust components such as catalytic converters or valves used to recycle some of the exhaust gasses. These cars were emitting much more pollution than they had in the labs. But the evidence suggests, at minimum, that some were alerted to possible cheating well before it became public. European cars had different emissions-reduction hardware than U. The company has a history of scandals and episodes in which it skirted the law.
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- Illustrations by Derek Watkins Source: Environmental Protection Agency. Full details of how it worked are sketchy, although the EPA has said that the engines had computer software that could sense test scenarios by monitoring speed, engine operation, air pressure and even the position of the steering wheel. GRAMS OF NITROGEN OXIDES.
- The German car giant has since admitted cheating emissions tests in the US.
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Five Things on the Volkswagen Emissions Scandal
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