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Old 02-17-2010, 03:03 AM   #1
AVANTI R5
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Default Study shows there is nothing wrong with the electronics of Toyota and Lexus cars




Quote:
The Wall Street Journal reported that a study made by Exponent and funded by Toyota Motor Corp. states that there is nothing wrong with the electronics of Toyota and Lexus cars. The WSJ was able to obtain a copy of the study conducted by the Menlo Park, California-based engineering firm. The Feb. 4 preliminary report stated that despite rigorous efforts, Exponent has not been able to find that electrical disturbances to the system could either lead to unintended acceleration or behavior that might be a precursor to such an event.

Toyota’s reputation is at stake due to numerous cases of safety lapses. Toyota had previously stated that the complaints came as a result of floor mats trapping gas pedals or pedals sticking. Detractors have come out, saying that electronic failures could be the cause.

Yoshi Inaba, president of Toyota North America, and U.S. sales chief Jim Lentz, are set to brief senior executives in Japan in advance of U.S. congressional hearings scheduled for later this month, according to Don Esmond, senior vice president of Toyota Motor Sales U.S.A. Inc.

Speaking on the sidelines of the National Automobile Dealers Associations convention in Orlando, Fla., Esmond said that he was “absolutely” confident that repairing accelerator pedals or replacing loose floor mats would address the risk of unintended acceleration. He also attested that Toyota’s electronics system had been “thoroughly tested.”


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Old 02-17-2010, 08:16 AM   #2
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Do you realize how experiments work? (You put the thread title up). You don't show there is nothing wrong. You don't find anything wrong and thus your theory that nothing is wrong is still possibly correct. In other words this is not proof, and having the senior vice president of sales say everything is peachy doesn't make it so either.

Studies fail to find bugs in software all the time. Yet the bugs still exist. Hopefully the software here is simple enough that it is more difficult for bugs to hide, but it certainly isn't proof of their absence.


"Study fails to find bugs in electronics of Toyota and Lexus vehicles related to acceleration" is a correct reading. Afterall Toyota is recalling the Prius b/c of bugs in the software at this moment, so I imagine they found some problems in the electronics...
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Old 02-17-2010, 10:47 AM   #3
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"thoroughly tested" huh? I bet I could find some bugs..
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Old 02-17-2010, 10:51 AM   #4
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This guy tested everything.



"It's completely operational and all it's circuits are functioning perfectly."
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Old 02-17-2010, 10:52 AM   #5
sgilson
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sxotty, you are spot on. I fix medical equipment. When I get a complaint about something from the operator, I verify the complaint, then test the equipment against the OEM verifiers. I can test it against the specs and get good results. The equipment might be buggy because the humidity is slightly too high, or low. There might be air blowing across a sensor....Thousands of variables come into play. A few years back, I noticed that that we started having problems with a particular model of ventilators at around 40,000 hours run time. The OEM trucked 3 of these vents away for tests and found nothing wrong with them, but we continued to have intermittent failures on the fleet we maintained with over 40,000 hours. The company was confident nothing was wrong, but the hospital was convinced that it was time to purchase a new fleet of ventilators before someone got hurt or killed and it wasn't from the company who said nothing was wrong.
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Old 02-17-2010, 11:46 AM   #6
JuggernautTCW
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Quote:
Originally Posted by sgilson View Post
sxotty, you are spot on. I fix medical equipment. When I get a complaint about something from the operator, I verify the complaint, then test the equipment against the OEM verifiers. I can test it against the specs and get good results. The equipment might be buggy because the humidity is slightly too high, or low. There might be air blowing across a sensor....Thousands of variables come into play. A few years back, I noticed that that we started having problems with a particular model of ventilators at around 40,000 hours run time. The OEM trucked 3 of these vents away for tests and found nothing wrong with them, but we continued to have intermittent failures on the fleet we maintained with over 40,000 hours. The company was confident nothing was wrong, but the hospital was convinced that it was time to purchase a new fleet of ventilators before someone got hurt or killed and it wasn't from the company who said nothing was wrong.
so what happened at the end?... did they find the problem or hospital bought more ventilators?
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Old 02-17-2010, 11:50 AM   #7
Lboogie
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yeah, the problem is mechanical, not electronic.
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Old 02-17-2010, 02:50 PM   #8
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even with mechanical issues, sometimes problems just dont show up in testing...

I still think there is something buggy about the DBW setup.
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