VW electronics cheating the EPA

Discussion in 'Diesel Engines' started by powerabout, Sep 24, 2015.

  1. powerabout
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    powerabout Senior Member

    and you can buy weed legally now so some things have improved
     
  2. cor
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    cor Senior Member

    VW didn't cheat. The EPA made a test and said that to get certified your engine must pass this test. The VW engines passed.

    They may have skirted the intent of the law, but they met the letter of the law. The troubles with the EPA will probably be settled out of court, but if it went to trial I think that it would be found that VW did not break any laws.

    C.O.
     
  3. whitepointer23

    whitepointer23 Previous Member

    Good one.:D
     
  4. DCockey
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    DCockey Senior Member

    VW intentionally violated the law in order to pass the test. In other words they cheated. The law clearly says the test has to be passed with the engine, transmission and emission systems functionally as they do for normal driving, and can not be rigged to function differently during the EPA test than during normal driving. VW has admitted deliberately using engine control software which detected the test conditions and made the systems function differently than during normal driving.
     
  5. whitepointer23

    whitepointer23 Previous Member

    And they did not expect to get found out by a group of engineering students doing an assignment.
     
  6. powerabout
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    powerabout Senior Member

    this is going to bigger than The Deep Water Horizon which happen in one place
    this has happened all over the world
     
  7. waikikin
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    waikikin Senior Member

    AAARRoop....And would have gotten away with it too, if it hadn’t been for these meddling kids & their stoopid dog!
     
  8. powerabout
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    powerabout Senior Member

    the uni was actually doing a project for the EPA
     
  9. philSweet
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    philSweet Senior Member

  10. powerabout
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    powerabout Senior Member

    I dont get it,
    quote " it will be harder to fix the cars in the USA"?
     
  11. FAST FRED
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    FAST FRED Senior Member

    "it will be harder to fix the cars in the USA"?"

    Not really VW did the testing with the emission reducing program on , which was simply bypassed for the owners.

    Bypassed it gives better fuel mileage and better performance.

    A simple computer software fix can reduce the performance and reduce the fuel mileage to the std set by the buroRats.

    The challenge for VW will be how to get the owners to bring their cars in for the "fix".
     
  12. powerabout
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    powerabout Senior Member

    yes but that doesnt explain why VW are saying it will be a harder fix than in Europe
    PS the owner doesnt get better mileage they get less as they have more power
     
  13. Joakim
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    Joakim Senior Member

    The limits for NOx are tougher in the USA. In EU they got away with a software change for some models and an addiotional small hardware change for others.

    The owner got both better mileage and more power compared to "test mode". In EU it seems they are able to find a good enough compromise with software (+ small change). This will likely have too high emissions for USA and clearly higher than the "test mode", but will not make too much difference in the mileage and power.

    http://www.autoexpress.co.uk/volksw...compensation-is-your-car-affected-latest-news
     
  14. powerabout
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    powerabout Senior Member

    NOx not mentioned in that article but along with 18 billion fine they have to fit SCR on all US and at least Australian cars I guess, thats not going to be cheap
    Not to mention the growing scandal with MAN diesels and fake data
     

  15. Alumination
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    Alumination Junior Member

    It's my understanding that in clean mode the engine uses more fuel for a hotter running engine/exhaust. Remember this is a diesel, lean runs cooler, rich runs hotter.
    The hotter engine/exhaust works better at creating the right ratio of emissions. Not sure if there are less emissions or if just the NOX to other emissions ratio is in the EPA acceptable range.

    Depending on how the EPA worded the rules, VW might be within the letter of the law.

    Years ago I knew a guy who roadraced motorcycles in amateur CCS and/or WERA.
    His team built the engine in their bike which won. They had to tear it down to verify it was legal. The tech inspectors found that the crank had been lightened and knife edged as well as some other go fast mods. The rule book clearly stated "no material can be removed from the engine". The team then pulled a small metal box out of the lower case area which contained metal shavings. No material had been "removed" from the engine, it had been carried "in side" the engine the whole time.
    You can probably imagine the uproar. Some laughed, some raised hell. I do believe the team kept the win but the rule book was changed immediately.

    Suggesting folks should keep within the "spirit" of the rules or law also suggests that an opinion should be considered. Laws are rules which should be written perfectly and require no interpretation, otherwise who's interpretation will be acceptable?
     
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