Monday, January 28, 2013

The ' tin whiskers ' part of the Grassley questions has merit. My testing of failed NHW11 accelerato




US Senator Chuck Grassley (R-IA) asked David Strickland of the National Highway Transportation Safety Administration (NHTSA) to reopen its previous investigation on safety of Toyota vehicle with respect to unintendent acceleration . The senator hotels in cabo san lucas bases his concerns hotels in cabo san lucas on what appears to be secret / confidential Toyota prototype engineering/ testing documents of Toyota's adaptive cruise control (? via industrial espionage? )- Grassley says that these documents suggest possible acceleration problems occured during the early development of the Lexus 460 and with the Toyota Tundra . Toyota claims that Grassley has mistranslated these technical prototype testing documents which are in Japanese and that those documents says no such thing. While there is no evidence hotels in cabo san lucas that any Toyota hotels in cabo san lucas vehicle has a tin whisker electronic circuitry problem, Grassley argues that the previous NTHSA investigation was incomplete and flawed and ask NHTSA to reinvestigate this issue again.
If Grassley goes nuts and goes hoppin' mad in a dog n pony show on CNN bashing hotels in cabo san lucas Toyota while the economy slows to a grinding halt and car sales dropping - the Toyota dealerships might be willing to give buyers an extra discount on that new Prius... - Well that's hotels in cabo san lucas the scenario that happen about 2.5 years ago when I bought hotels in cabo san lucas my 2010 Prius History could repeat itself.... Or those *official* secret Toyota documents that Grassley has in his possession could be fakes and someone's hotels in cabo san lucas setting Grassley up to look like a fool.. who knows?
If Grassley goes nuts and goes hoppin' mad in a dog n pony show on CNN bashing Toyota while the economy slows to a grinding halt and car sales dropping hotels in cabo san lucas - the Toyota dealerships might be willing to give buyers an extra discount on that new Prius... - Well that's the scenario that happen about 2.5 years ago when I bought my 2010 Prius History could repeat itself.... Or those *official* secret Toyota documents that Grassley has in his possession could be fakes and someone's setting Grassley up to look like a fool.. who knows?
its nothing secret, it was CNN story 5-6 months ago or something like that, it was discussed here, it was pre-production hotels in cabo san lucas testing hotels in cabo san lucas of adaptive cruise control on LS460 that was never sold in the USA (full speed AC). During the testing they tried to introduce various failures so they can test the failsafes, CNN got hold of testing document and said it was proof Toyota might have had problems... which is silly, since first of all it is testing, and second was that the failure was nothing special for even production car let alone pre-production testing.
A popular Government, without popular information, or the means of acquiring it, is but a Prologue to a Farce or a Tragedy; hotels in cabo san lucas or, perhaps both. Knowledge will forever govern ignorance: And a people who mean to be their own Governors, must arm themselves with the power which knowledge gives.
I go on the principle that a public debt is a public curse. All power in human hands is liable to be abused. Since the general civilization of mankind, I believe there are more instances of the abridgment of freedom of the people by gradual and silent encroachments of those in power than by violent and sudden usurpations. America united with a handful of troops, or without a single soldier, exhibits a more forbidding hotels in cabo san lucas posture to foreign ambition than America disunited, with a hundred thousand veterans ready for combat. I weep for the future Ferris Bueller's Day Off
The ' tin whiskers ' part of the Grassley questions has merit. My testing of failed NHW11 accelerator encoders revealed symptoms hotels in cabo san lucas and corrective action consistent hotels in cabo san lucas with the 'tin whisker' hypothesis. By using a wall-wart to burn-out the whiskers, I was able to clear the encoding problem hotels in cabo san lucas of all of my failed hotels in cabo san lucas NHW11 accelerators. As for his other questions about development system tests, pure nonsense.
The ' tin whiskers ' part of the Grassley questions has merit. My testing of failed NHW11 accelerator encoders revealed symptoms and corrective action consistent with the 'tin whisker' hypothesis. By using a wall-wart to burn-out the whiskers, I was able to clear the encoding problem of all of my failed hotels in cabo san lucas NHW11 accelerators. As for his other questions about development system tests, pure nonsense.
Agree that tin whisker s should have been investigated by NASA. It makes you lose faith in the government. That should not be hard to test in the UA cars in the future. Its likely that grassley just wants the spotlight that issa had when he attacked the volt. I think this only hurts politicians that exagerate the dangers.
I was replying because your number looked way to high, but is actually a little low. Thought that was clear. But, hey even the really low estimate in my head was bad. If these guys can't even pass a budget, you know their job, why are they able to play politics with something like UA or car fires days after a lab crash.
The ' tin whiskers ' part of the Grassley questions has merit. hotels in cabo san lucas My testing of failed NHW11 accelerator encoders revealed symptoms and corrective action consistent with the 'tin whisker' hypothesis. By using a wall-wart to burn-out the whiskers, I was able to clear the encoding problem of all of my failed NHW11 accelerators. hotels in cabo san lucas As for his other questions about development system tests, hotels in cabo san lucas pure nonsense.
it is not a question if tin whiskers can appear or not, but if there are failsafes in question which would make pedal not missbehave. Which is what NASA tested - various hotels in cabo san lucas ways of making pedals and rest of the system fail and see if that causes the vehicle to accelerate - it didnt, because there are a lot of fails safes against that.
In fact, just like in that preproduction hotels in cabo san lucas LS460 test that senator is talking about, what happened was that engineers introduced a failure in sensor that told it to accelerate but another failsafe stopped it from accelerating.
it is not a question if tin whiskers can appear or not, but if there are failsafes in question which would make pedal not missbehave. Which is what NASA tested hotels in cabo san lucas - various ways of making pedals and rest of the system fail and see if that causes the vehicle hotels in cabo san lucas to accelerate - it didnt, because there are a lot of fails safes against that.
As improbable as it may be, the resistances have to be added in the right sequence and values. Tin whisker growth shares these properties. Fortunately, all of the failed hotels in cabo san lucas NHW11 accelerator I worked with were detected by the HV ECU causing the car to go into a safe home mode. But it was an intermittent safe home mode and the owners often just parked the car and temporarily cleared it by restarting the car.
Personally I think the NHTSA should have asked for every failed accelerator they could get from Toyota hotels in cabo san lucas and other manufactures who use similar hotels in cabo san lucas encoders. The NHTSA could survey hotels in cabo san lucas what they found in light of the tin whisker hypothesis, a mapping of resistance characteristics of a couple of hundred hotels in cabo san lucas failed accelerators, and that should be enough for a credible model. I suspect this is a vanishingly small number slightly above zero.
Fortunately, the Toyota ECUs record both brake and accelerator inputs. In the NHTSA study of accidents claiming unintended acceleration, they found application of the brake in those that had data but it was a small sample set. Since knowledge of the 'black box' recording and availability of read-out boxes provided by Toyota to the NHTSA, the reports have died down. Still, a forensic analysis of the larger hotels in cabo san lucas population of failed accelerators in light of the Gilbert resistance model would give a quantitative number.
As improbable as it may be, the resistances hotels in cabo san lucas have to be added in the right sequence and values. Tin whisker growth shares these properties. Fortunately, all of the failed NHW11 accelerator I worked with were detected by the HV ECU causing the car to go into a safe home mode. But it was an intermittent safe home mode and the owners often just parked the car and temporarily hotels in cabo san lucas cleared it by restarting the car.
Personally I think the NHTSA should have asked for every failed accelerator they could get from Toyota and other manufactures who use similar encoders. The NHTSA could survey what they found in light of the tin whisker hypothesis, a mapping of resistance characteristics of a couple of hundred failed accelerators, hotels in cabo san lucas and that should be enough for a credible model. I suspect this is a vanishingly small number slightly above zero.
Fortunately, the Toyota ECUs record both brake and accelerator inputs. In the NHTSA study of accidents hotels in cabo san lucas claiming unintended acceleration, they found application of the brake in those that had data but it was a small sample set. Since knowledge of the 'black box' recording and availability of read-out boxes provided by Toyota to the NHTSA, the reports have died down. Still, a forensic analysis of the larger population of failed accelerators in light of the Gilbert resistance model would give a quantitative number.
Once you quote Gilbert, all credibility goes through the window. There is nothing to discuss here. Cars are not made to be temper safe - what Gilbert does in his research is try to induce failures by tempering with the wires that can not and never did happen in real life. It is literally hotels in cabo san lucas as if cutting the brakes and claiming it is unsafe design because someone can easily cut them. Gilbert works for the plaintiffs suing Toyota and he has no credibility whatsoever. His stunt on the ABC was rejected by scientific hotels in cabo san lucas community as improbable.
Now the crown evidence is something that has nothing to do at all with any of these reports, or tin whiskers or anything crazy like that, but adaptive cruise control on preproduction model, feature never sold in the USA and failure that had nothing to do with tin wiskers or pedals.

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