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  (Source: Warner Brothers)

Could cosmic rays be blame for unintended acceleration in Toyota vehicles and crashes? The National Highway Traffic Safety Administration is investigating the possibility, which was raised by an industry tipster.  (Source: SuperChevy.com)
Could outer space be endangering Toyota's drivers?

Whether individual reports of runaway Priuses are true or not, the sheer number of complaints and accidents would indicate that many vehicles in Toyota's lineup may have deep underlying issues. These issues are exacerbated by the fact that many American drivers are unaware of all the means at their disposal to stop their vehicles.

The feds are now examining a rather wild theory -- that cosmic radiation may be causing some of Toyota's electrical issues.  The feds received an anonymous tip from an industry source that Toyota's microprocessors, memory chips and software may be more sensitive to cosmic rays than its competitors, causing increased incidences of malfunctions.  Such problems are commonplace with airplanes or spaceships, raising the need for extremely robust electronic designs.

Sung Chung, who runs a California testing firm, says he believes the tipster may be correct.  He states, "I think it could be a real issue with Toyota.  [But] nobody wants to come out and say we have issues and we need to test."

Electrical interference could help to explain the unintended acceleration afflicting 13 models across Toyota's lineup, or about 5.6 million vehicles in total.  While software and hardware can compensate, to an extent for cosmic interference, cosmic rays can potentially cause the kind of unrepeatable "single event upsets" that could add up to many of the 3,000 complaints against Toyota received by the National Highway Traffic Safety Administration since 2000.

William Price, who worked at a jet propulsion laboratory studying extraterrestrial electromagnetic interference (EMI) for 20 years, comments, "[It] occurs virtually anywhere.  It doesn't happen in a certain locale like you would expect in an electromagnetic problem from a radio tower or something else."

A Toyota spokesperson in a brief comment to 
Freep.com said that Toyota's protections against extraterrestrial EMI were "robust against this type of interference" and that its vehicles featured "absolute reliability".

Toyota may not be the only one susceptible to cosmic EMI, though.  Other manufacturers likely would have similar occurrences even in more reliable designs, albeit less frequently.

Cosmic EMI may turn out to be of little concern, or it may turn out to be a major problem with the increased use of in car electronics.  The auto industry used to use mechanical links, but now uses electrical throttle controls to save weight and space, and make other technologies possible, such as stability control.  Those benefits could come at a cost, though.

Update:

There's a lot of confusion about what "cosmic interference" or "cosmic EMI" is.  "Cosmic interference" or "cosmic radiation" can mean one of two things:
First, disruption due to cosmic rays, which are primarily composed of protons (hydrogen ions), helium nuclei (alpha particles), and high energy electrons.  Secondly, cosmic bodies like the sun can transmit self-propagating electromagnetic waves through the vacuum.  These waves can be referred to as "cosmic EMI".  Cosmic particles can also cause damage, but aren't referred to as EMI.  This article is referring to both cosmic rays and cosmic electromagnetic radiation.



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RE: Sheeze Louise...
By Arc177 on 3/17/2010 10:02:03 AM , Rating: 2
ROFLs
Yes Jason Mick should take down whatever science degree he has and send it back to his alma mater with an apology.
Also agree as you pointed out elsewhere the SEU effect would be discernible by separating data by elevation. If nothing jumps out at you then this is likely a red herring from the owners of GM (Government Motors).
Beyond that take a representative sample of these control modules and stick the things in a proton beam at IU's cyclotron facility and determine their susceptibility. Then goto Texas A&M and do heavy ion testing just to be thorough.

Of course if we have to start Rad testing all of our cars expect the price to go up, having to test every lot of semiconductors the way it is done for mil-spec rad hard parts would probably add a large expense onto vehicle cost. I am SURE Toyota does not want to open this Pandora's box. I can see douche queen Barbara Boxer or some other libturd asking:
"Why didn't you test for this?..."
To which the answer is that it isn't a plausible mode of failure. But scientifically illiterate morons make it seem like it is.

My personal take is that this is all a wild goose chase.
While it is possible it just isn't plausible. There are multiple layers of metal between the ECU and the incoming Cosmic Rays, it just doesn't seem likely even on the sample sizes of millions of Toyotas. The actual failure rates don't seem to support it either.


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