That timeline is sickening. I can't believe it had to resort to an officer and his family dying before anyone came forward.Jesda wrote:
That timeline is sickening. I can't believe it had to resort to an officer and his family dying before anyone came forward.Jesda wrote:
Likening a desktop computer to a car's ECM is a little off. The desktop has to deal with a GUI, Operating system, hardrive reads, you name it. The only thing the ECM deals with is inputs and outputs compared to ROM data. It doesn't have any room to "freak-out"...only a bad sensor would cause it to misinterpret data and actuate the throttle differently.Again...this all comes down to a software issue...the devices themselves are rock solid that I've seen.PapaSmurf2k3 wrote:Sorry guys, I gotta agree with MOD here. Mechanical throttles FTW. I've heard tons of horror stories ever since these electronic beasts came out. How many times has your electronic/computer device freaked the f*** out on you and done something completely crazy/uncalled for?
Well, the same s*** can happen in a vehicle.
That's why when I open a program on a computer it takes seconds to open up, or when you type sometimes it takes a few seconds for the letters to appear... yeah, it shouldn't happen, but it does. Programs end unexpectedly, shoot... even sometimes when you hit ctrl+alt+del, nothing happens. Sorry, but I don't want a computer controlling something as important as my throttle, steering, or brakes.
Hah! You should see how often Chrysler passenger car ECMs freak out and require discard/replacement. You'd think it was a simple device, as would I...ScorchedNX2K wrote:
Likening a desktop computer to a car's ECM is a little off. The desktop has to deal with a GUI, Operating system, hardrive reads, you name it. The only thing the ECM deals with is inputs and outputs compared to ROM data. It doesn't have any room to "freak-out"...only a bad sensor would cause it to misinterpret data and actuate the throttle differently.Again...this all comes down to a software issue...the devices themselves are rock solid that I've seen.
But its likely that engineers are going to try and build it in such a way that a failure would cause the least dangerous result possible. Basically, if a part fails in this case, the car would be dead or limited in what it can do. Redudant pedal sensors are likely. A feedback from the throttle that checks to see if the throttle is positioned where it should is likely. If these basic things aren't in place or there they engineered it in such a way that it can allow the Electronic throttle to stick in case of failure, then I would blame the engineering, not the technology. Frankly, the same could be said of mechanical throttles. I've investigated a number of accidents that involved sticking throttles. Some were mechanical. And only 2 were electronic and implemented in the same vehicle (85 Mercedes; can't recall the model off the top of my head; NHTSA also recorded a high number of similar incidents reported with said vehicle). Both have possibilities of failures with potentially catastrophic results. How much probably has more to do with implementation.Jesda wrote:
Hah! You should see how often Chrysler passenger car ECMs freak out and require discard/replacement. You'd think it was a simple device, as would I...
Still waiting to see WHAT this one is.Jesda wrote:And now an issue with the new Prius.http://news.yahoo.com/s/ap/201...prius
This is a bad year to be a Toyota shareholder.
Sticky throttle.RCA wrote:Sure a sticky throttle is bad...
But which one is worse, a sticky throttle or brakes that can take up to a second before they brake?
Hmm, so the non working brakes take a second to fix? I know when I am driving and any thing get stuck, I unstick it. I put my foot under the pedal and lift it myself (did it with my S14s clutch). But now imagine pressing down and nothing happens.Red coupe wrote:Sticky throttle.
Not only does it take longer then a second to fix, but instead of just not slowing down you are actually speeding up.
eh, I work with PLCs at work all the time too. They too exhibit funkyness from time to time.ScorchedNX2K wrote:
Likening a desktop computer to a car's ECM is a little off. The desktop has to deal with a GUI, Operating system, hardrive reads, you name it. The only thing the ECM deals with is inputs and outputs compared to ROM data. It doesn't have any room to "freak-out"...only a bad sensor would cause it to misinterpret data and actuate the throttle differently.Again...this all comes down to a software issue...the devices themselves are rock solid that I've seen.
From what you said they are not non-working brakes. They are brakes that take up to a second to work.In that case brakes that take up to a second to work take a second to work... or even less.RCA wrote:Hmm, so the non working brakes take a second to fix? I know when I am driving and any thing get stuck, I unstick it. I put my foot under the pedal and lift it myself (did it with my S14s clutch). But now imagine pressing down and nothing happens.