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#91 | |
barely disguised asshole, keeper of all that is holy.
Join Date: Nov 2007
Posts: 23,401
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Honda adds 437,000 cars to global air bag recall
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"like strapping a pillow on a bull in a china shop" Bullitt |
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#92 |
Read? I only know how to write.
Join Date: Jan 2001
Posts: 11,933
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New technology is to replace mechanical controls with electronics. Now understand the problem. Every digital logic circuit is logic One when above a certain voltage. And logic Zero when below. Between those two levels is an undefined reason (because everything in the world is ternary). So that noise does not cause confusion, any signal in 'no man's land' means logic stays at its old value. Then noise does not cause failure.
Well, sort of. All noise is statistical. Therefore all noise will eventually cross that 'no man's land' threshold. We calculate the probability. So that your PC is reliable, that noise threshold might be achieved once every (maybe) 1000 or 10,000 years. No problem for you. A major problem for Toyota with so many millions of cars. Described earlier is one method to avert disaster - see watchdog timer discussed earlier. And a problem. There really is no way to test for proper implementation of that watchdog timer. Quality (as taught by W E Deming) says quality must occur at the design level. That means top management must implement, enforce, and understand how that can be accomplished OR if it is being accomplished. Mechanical designers did not have to be so careful. Now that brakes, accelerator pedals, windows, power steering, etc are all partially or fully electronically controlled, then software interfacing with hardware means everything Deming taught is even more important. Means that understanding even that above statistical fact is essential to reliable design. How does one test for a failure that happen almost never - such as the throttle pedal? That is what every automaker has confronted. Every automaker has suffered the same problems in other variations before Toyota. But this time the problem was bigger news - probably because one event was so newsworthy. Ford's problem with Firestone (now Bridgestone - they changed the name so that you would forget how many they killed) was so trivial and obvious compared to Toyota's. Ford eventually discovered Firestone knew they were killing people, lied about fixing the tires, and then denied the problem existed. In that case the problem and its solution was trivial simple. Well, Toyota's problem has a similar story line. Toyota knew the problem (and some others) existed. But top management stayed in denial mode. We are now seeing new Toyota management trying to deal with a problem that existed maybe in 2003. And have only been at trying to eliminate it (and other problems such as the Prius braking software) for a year. Trying to identify the transistor among millions that might be too susceptible to statistical noise failure when it only happens to a few of millions of vehicles. And the failure leaves no electrical history of the failure. Toyota has a major challenge. If I understand the problem from details in so many stories, I believe the accelerator pedal will not be (or may be only one minor) reason for failure. Appreciate why bad management means a statistically rare problem can make the solution almost impossible to find. And why missions (such as Apollo) did not have such problems because management understood what the engineers were saying. Therefore could avert problems before death resulted (ie Apollo 13). Engineering and management techniques once good enough for mechanical brakes or Bridgestone tires is no longer sufficient in today's world of Deming quality, six Sigma, millions of transistors in each car (every car currently has about 50 motors), and world wide news. |
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#93 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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Excellent explanation, tw. I knew you had it in ya.
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The descent of man ~ Nixon, Friedman, Reagan, Trump. |
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#94 |
I can hear my ears
Join Date: Oct 2003
Posts: 25,571
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This body holding me reminds me of my own mortality Embrace this moment, remember We are eternal, all this pain is an illusion ~MJKeenan |
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#95 |
barely disguised asshole, keeper of all that is holy.
Join Date: Nov 2007
Posts: 23,401
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Nope - they are probably too worried about the Corolla's power steering issues and another possible recall.
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"like strapping a pillow on a bull in a china shop" Bullitt |
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#96 |
changed his status to single
Join Date: Apr 2004
Location: Right behind you. No, the other side.
Posts: 10,308
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everybody who has ever had a problem with a Toyota raise your hand.
I'll wait.
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Getting knocked down is no sin, it's not getting back up that's the sin |
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#97 |
“Hypocrisy: prejudice with a halo”
Join Date: Mar 2007
Location: Savannah, Georgia
Posts: 21,393
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No problems here. We are on our third in this family. Granted my dau's first one did get wrecked with 6k on it and now she has 2010, but still. My truck is three years old, not a single issue. Not even a rattle.
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#98 |
Are you knock-kneed?
Join Date: Jul 2008
Location: Middle Hoosierland
Posts: 3,549
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*hand raised*
...but it was kinda my fault. I let the tank go to nearly empty too many times and clogged the fuel filter inside it, which caused a problem somehow and it wouldn't drive. Had to get a whole new something-or-other which cost $500 or so. This was way back in the 80's when I was driving the '76 Corona. Back then, the Jap cars didnt get a lot of respect, though. |
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#99 |
Gone and done
Join Date: Sep 2001
Posts: 4,808
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Pico, I think the statute of limitation's run out on that one.
![]() If I were going to buy a car right now, I would give serious consideration to a Toyota. Some pretty good deals out there, I bet.
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per·son \ˈpər-sən\ (noun) - an ephemeral collection of small, irrational decisions The fun thing about evolution (and science in general) is that it happens whether you believe in it or not. |
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#100 | |
Read? I only know how to write.
Join Date: Jan 2001
Posts: 11,933
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Quote:
View Toyota stock sales during the recall notices. The spike is massive. Paniced investors were selling. So when is the best time to buy? You must determine at what point all the bad news is out. For example, the accelerator pedal may cost $70 per vehicles to replace. That is a $billion write off that has not yet appeared on spread sheets (because spread sheets report events long after it really happens). Dealers may be desperate to make the sale. But I doubt it. Right now, they are fully employed by Toyota just upgrading existing new and already sold models. And the supply was cut off on some models as it took tiime to manufacturer new pedals. But investment possibliities are good. Too many invest on silly emotion rather than appreciate the real value of that company. Maybe 10% or 20% are so pathetically foolish as to react to the news. That is a buying opportunity. However the buying opportunity is so obvious as to not be as profitable as it might be. Those are the judgements that only you can put numbers to. |
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#101 | |
Read? I only know how to write.
Join Date: Jan 2001
Posts: 11,933
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Written by The Economist (10 Dec 2009) about five months after Akio Toyoda took control of Toyota.
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#102 |
I can hear my ears
Join Date: Oct 2003
Posts: 25,571
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meanwhile, in the batcave.......
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This body holding me reminds me of my own mortality Embrace this moment, remember We are eternal, all this pain is an illusion ~MJKeenan |
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#103 | |
barely disguised asshole, keeper of all that is holy.
Join Date: Nov 2007
Posts: 23,401
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Gov't still hearing complaints about fixed Toyotas
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"like strapping a pillow on a bull in a china shop" Bullitt |
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#104 | |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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Quote:
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The descent of man ~ Nixon, Friedman, Reagan, Trump. |
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#105 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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__________________
The descent of man ~ Nixon, Friedman, Reagan, Trump. |
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