:::RHMT::: Real Home Made Turbo
General Category => General Discussion => Topic started by: weirtech on November 19, 2009, 01:58:33 AM
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http://video-cdn.abcnews.com/091103_ntl_story_toyota.flv (http://video-cdn.abcnews.com/091103_ntl_story_toyota.flv)
not cool.
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Heard about this a few days ago, there's a TON of models/years being recalled.
I never liked electronic throttle ever since I tried to put a boost controller on my father's Saab, it just closes the throttle plate to compensate and lower the boost. Ass!
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guy that died was a cop, called 911, talked for a few moments ect ect
cant put it into neutral and let it bounce of limiter? or is the electric motor no effected by throwing it into neutral
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scary shit. I'm so glad my accord has minimal computer fucking with.
What was so wrong with a normal cable linking the accelerator to the throttle?
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wireless throttle may have to do with power limiting or government control.
most throttle by wire systems close any time there is an error in the system and run reduced power or idle only
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scary shit. I'm so glad my accord has minimal computer fucking with.
What was so wrong with a normal cable linking the accelerator to the throttle?
more efficiency possible with wire
while cruising the TB blade is actualy fully open to allow better flow of air/less restriction in the intake tract
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What was so wrong with a normal cable linking the accelerator to the throttle?
That's what I'm saying. Drive by wire sucks cock, and it seems Toyota is in for the ass suing of a lifetime until they come clean.
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Can't just put it in neutral and turn off the key?
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While I very much dislike DBW, the major problem is that the average driver does not know enough about cars to react properly in a situation like that.
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Can't just put it in neutral and turn off the key?
thats what i was thinking.
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Can't just put it in neutral and turn off the key?
thats what i was thinking.
all these problems are in the hybrids and the cars that dont actually have keys. they just got transponder tags and push button starts.
remember if your in one the way to shut it off is hold the 'start' button for 3 seconds and it will kill the motor.
all these people dont know how to shut their cars off. also most new cars willl not shift the tranny to neutral if your on the gas.
i never understood why we need steppermotor throttles, shit scares me. some new bikes have them, thats scary.
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I don't get it. I was a passenger in a 85 Stanza when the cruise control throttle cable was stuck, the car wanted to stay at 70mph while trying to stop. The driver and myself both reached for the key at the same time.
Last year I was moving a newer CRV and stabbed the throttle. It stuck WOT and my instant reaction was to throw it in park.
WTF is going on in peoples heads when this happens? Panic reaction? Lets see, brakes no, park/neutral maybe?
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haha Id pay extra if it would stick WOT :noel: People just dont know how to drive :?:
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I don't get it. I was a passenger in a 85 Stanza when the cruise control throttle cable was stuck, the car wanted to stay at 70mph while trying to stop. The driver and myself both reached for the key at the same time.
Last year I was moving a newer CRV and stabbed the throttle. It stuck WOT and my instant reaction was to throw it in park.
WTF is going on in peoples heads when this happens? Panic reaction? Lets see, brakes no, park/neutral maybe?
I'm going to have to test if my girlfriend's highlander can be put into neutral with the pedal floored.
LMAO, throwing it into park at high speeds could be exciting. If it doesn't completely eat the trans, it would definitely break the parking pawl. I almost died when my last girlfriend put my car into park going like 5mph. It was enough to lock up the front wheels.
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I don't get it. I was a passenger in a 85 Stanza when the cruise control throttle cable was stuck, the car wanted to stay at 70mph while trying to stop. The driver and myself both reached for the key at the same time.
Last year I was moving a newer CRV and stabbed the throttle. It stuck WOT and my instant reaction was to throw it in park.
WTF is going on in peoples heads when this happens? Panic reaction? Lets see, brakes no, park/neutral maybe?
yea because that would just shear the parking gear. You have any idea how thin a parking ring is? If you ever actually see one, you'll set your e-brake EVERYTIME you leave your car.
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If you can't turn a key off, you are retarded. No servo error could cause that. The best thing to hope for is a same throttle % increase, not a run-away.
No ghost in the machine
Some accidents can be explained
Right around the time when American car makes are getting their asses handed to them
No brakes? Brakes are still hydraulic bitches!
This all seem a little fishy. Like selective reporting plus big guy targeting. No other countries other than America? That report has holes in it bigger than jagojon3's mothers vaginey.
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darwin
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this is what happens when jeremy drinks at work
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If you can't turn a key off, you are retarded. No servo error could cause that. The best thing to hope for is a same throttle % increase, not a run-away.
No ghost in the machine
Some accidents can be explained
Right around the time when American car makes are getting their asses handed to them
No brakes? Brakes are still hydraulic bitches!
This all seem a little fishy. Like selective reporting plus big guy targeting. No other countries other than America? That report has holes in it bigger than jagojon3's mothers vaginey.
You sir are 100% right, i work for Toyota, the car has to be driven by a mentally challenged 5 year old to get to the point and act like these reports suggest, i say this is just a campaing to damage the name of the make.
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I never liked electronic throttle ever since I tried to put a boost controller on my father's Saab, it just closes the throttle plate to compensate and lower the boost. Ass!
Saab Trionic Suite is a free download, dick nips.
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If you can't turn a key off, you are retarded. No servo error could cause that. The best thing to hope for is a same throttle % increase, not a run-away.
No ghost in the machine
Some accidents can be explained
Right around the time when American car makes are getting their asses handed to them
No brakes? Brakes are still hydraulic bitches!
This all seem a little fishy. Like selective reporting plus big guy targeting. No other countries other than America? That report has holes in it bigger than jagojon3's mothers vaginey.
You sir are 100% right, i work for Toyota, the car has to be driven by a mentally challenged 5 year old to get to the point and act like these reports suggest, i say this is just a campaing to damage the name of the make.
i say you're a fucking shitbag. another french canadian. i can deal with francis, he's smart. you on the other hand... no.
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this shit happened to a bmw on the autobahn years ago. the dumb ass tried to "maintain" the speed limit? Ended up brakes went out and he ran out of road and flipped it like end over end..... :?:
Wtf is wrong with people. turn key off, neutral, e brake, ditch, etc. Idk about you but run that pos in the ditch with the ebrake locked, it's not going to do no 100 mph and burst into flames.....
Prime example of how people never pushing there limits while driving. they have no idea how to react to an emergency situation. I don't care if it was a fault in the drive by wire the guy is a fucking idiot.
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If you can't turn a key off, you are retarded. No servo error could cause that. The best thing to hope for is a same throttle % increase, not a run-away.
No ghost in the machine
Some accidents can be explained
Right around the time when American car makes are getting their asses handed to them
No brakes? Brakes are still hydraulic bitches!
This all seem a little fishy. Like selective reporting plus big guy targeting. No other countries other than America? That report has holes in it bigger than jagojon3's mothers vaginey.
You sir are 100% right, i work for Toyota, the car has to be driven by a mentally challenged 5 year old to get to the point and act like these reports suggest, i say this is just a campaing to damage the name of the make.
i say you're a fucking shitbag. another french canadian. i can deal with francis, he's smart. you on the other hand... no.
Who was that directed towards, and who is Francis?
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i have never been on that road but from the report that shows what its like to go that fast down that road it looks like there is a guard rail to the right. he could have tried to scrape on that to slow down. then again maybe not
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toyota = worst cars in the world. yeap i said it. something was wrong with some of them.
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If you can't turn a key off, you are retarded. No servo error could cause that. The best thing to hope for is a same throttle % increase, not a run-away.
No ghost in the machine
Some accidents can be explained
Right around the time when American car makes are getting their asses handed to them
No brakes? Brakes are still hydraulic bitches!
This all seem a little fishy. Like selective reporting plus big guy targeting. No other countries other than America? That report has holes in it bigger than jagojon3's mothers vaginey.
You sir are 100% right, i work for Toyota, the car has to be driven by a mentally challenged 5 year old to get to the point and act like these reports suggest, i say this is just a campaing to damage the name of the make.
oh ya, people dying is a perfect campaign. fucking dick licker
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If I was driving that fucking car and that happend my first reaction would have been to turn the key, but if there was no key to turn It would have been thown in park so fucking fast.....lol Like bdvt said Darwinism...
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Don't be a pussy and Jam it in Park or Reverse.
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Don't be a pussy and Jam it in Park or Reverse.
Destroying the transmission tends to put cars in neutral permanently. Ask me how I know.
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ya at least something might break and kill the engine
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I hated the drive by wire throttle in my O7 SI. That shit would lag for .25-.5 seconds when i stomped on it sometimes. Once i was pulling out of a parking lot, (took off traction control) and eased out onto the road, then i stomped on it, and the fucking car just sat there, it finally went, scared the shit out of me because there was a big as truck coming.
I hated it to death, glad it never did anything stupid to that extent....
This is why automatics are gay, if those people drove a stick shifts none of this would happen.
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Right, which is what I said long ago.
The thing is your average soccer mom isn't going to know to do this. Hell, my gf gets upset when I'm driving her auto Saturn and downshift it into 3rd or 2nd coming down a mountain. She freaks out and says "I don't like this. You're going to break something." Yeah whatever. The thing is they're scared to do something like that and the sound of a free revving redlined engine also scares your layman office worker that knows nothing about the car they paid $40k for. She's been driving before and I've put it in neutral and she freaks out like we're going to crash and die. When you have cars that basically drive themselves you get people that don't know how to drive. I'll stick to my manual transmissions, throttle cables, and lack of cruise control.
Exactly.
The average driver knows jack shit about the very basics of how a car works, and that needs to change IMO.
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The guy is going at high speed and do nothing to stop the car before an intersection. Did he expect a miracle to happen?
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Exactly.
The average driver knows jack shit about the very basics of how a car works, and that needs to change IMO.
When you don't know what's going on to make your car go, and you never know what it feels like to be near limits (yours or the car's), you are screwed not if, but when something does happen. Like last winter, my mom lost the tail of her camry in the snow, and spun it into a ditch. She had snow tires on all corners, and all that would have been needed to save it was a little countersteer and some more throttle. A basic understanding of vehicle dynamics could put the towing companies out of business in the winter around here. They make a killing on winchouts.
The guy is going at high speed and do nothing to stop the car before an intersection. Did he expect a miracle to happen?
They did say "pray" on the phone recording.
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LOL Another reason why religions are bad.
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LOL Another reason why religions are bad.
I think it was more of a figure of speech in that case. I say God help those who don't help themselves :?:
I had a retarded floormat get my accelerator in my civic. I went to slow down and turn at an intersection and my car decided it wasnt slowing down. First thing I did was throw the bitch in neutral and started to pull on my ebrake a little bit. Looked down and saw my floormat, kicked it back stuck it in drive and continued driving. I guess some people just wouldn't have the sense to do that
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I have a drive by wire, but I also have a clutch. :noel:
LOL Another reason why religions are bad.
Never underestimate the stupidity of religious people. Religious people pray, athiests put it in neutral.
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whitney's religion is government
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whitney's religion is government
Glen Beck is your lord and savior
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Religious people pray, athiests put it in neutral.
What do the agnostics do? ???
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Religious people pray, athiests put it in neutral.
What do the agnostics do? ???
fist their own asses
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whitney's religion is government
Glen Beck is your lord and savior
who is glen beck?
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whitney's religion is government
Glen Beck is your lord and savior
who is glen beck?
Right-wing republican douche i.e. your lord and savior.
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Damn, yeah that's definitely not cool.
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If you can't turn a key off, you are retarded. No servo error could cause that. The best thing to hope for is a same throttle % increase, not a run-away.
No ghost in the machine
Some accidents can be explained
Right around the time when American car makes are getting their asses handed to them
No brakes? Brakes are still hydraulic bitches!
This all seem a little fishy. Like selective reporting plus big guy targeting. No other countries other than America? That report has holes in it bigger than jagojon3's mothers vaginey.
You sir are 100% right, i work for Toyota, the car has to be driven by a mentally challenged 5 year old to get to the point and act like these reports suggest, i say this is just a campaing to damage the name of the make.
i say you're a fucking shitbag. another french canadian. i can deal with francis, he's smart. you on the other hand... no.
Who was that directed towards, and who is Francis?
It was directed at the guy he was quoting, and Francis is an honorary American citizen when posting in the EM forum.
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LOL Another reason why religions are bad.
Never underestimate the stupidity of religious people. Religious people pray, athiests put it in neutral.
Sig material right there. God didn't do a whole lot to save them, now did he?
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what a stupid fuck why didnt he turn the car off? or take it out of gear??
natural selection.
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what a stupid fuck why didnt he turn the car off? or take it out of gear??
natural selection.
becuase it was in a car that uses transponder tags and a push button start
he did not know that in order to shut it off you have to hold the 'start' button for 3 seconds.
many new cars will not shift to neutral or park under power
many hybrids dont have gears, they have forward and reverse-that is it.
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While I very much dislike DBW, the major problem is that the average driver does not know enough about cars to react properly in a situation like that.
took the words right out of my mouth.
throw the damn car in neutral. even if they just let the engine blow up. better than dieing.
i bet there are plenty of cases where thats exactly what the people did and they were safe and since nothing super bad
happened they never reported it.
in other words HOW MANY CASES GO UNREPORTED
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what a stupid fuck why didnt he turn the car off? or take it out of gear??
natural selection.
becuase it was in a car that uses transponder tags and a push button start
he did not know that in order to shut it off you have to hold the 'start' button for 3 seconds.
many new cars will not shift to neutral or park under power
many hybrids dont have gears, they have forward and reverse-that is it.
even more of a reason NOT to have an automatic.
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Guys?
Remember the whole concept of removing the warning tags from everything and letting the problem take care of itself? We need to actively prevent how to stop modern vehicles from getting into the hands of the consumers - it's in the owner's manual, if they can't fucking RTFM let them die.
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Guys?
Remember the whole concept of removing the warning tags from everything and letting the problem take care of itself? We need to actively prevent how to stop modern vehicles from getting into the hands of the consumers - it's in the owner's manual, if they can't fucking RTFM let them die.
Very true. Replace all warnings with something absolving anyone of legal responsibility. Let's start with lawnmowers, SUV's (rollover warnings), and cigarettes. Also might as well make a lot of drugs legal again, since people would be held accountable for their own actions.
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
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I know of a 2009-2010 Mustang that wrecked due to drive by wire failure.
Or that is the excuse they are using.
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
you cant expect a little stepper motor to work perfectly all the time in 200F heat/oil ect
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
you cant expect a little stepper motor to work perfectly all the time in 200F heat/oil ect
Right but the way the system is designed, if there is a failure, the sevro is supposed to close not go WOT.
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the challenger was dbw too
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fhbmortgageoracle.files.wordpress.com%2F2009%2F02%2Fchallenger-explosion.jpg&hash=77ab77d40c1ded53626aa03ec87e96c7e16ebedb)
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
you cant expect a little stepper motor to work perfectly all the time in 200F heat/oil ect
Right but the way the system is designed, if there is a failure, the sevro is supposed to close not go WOT.
Depends on whether the failure is the ECU holding the throttle WOT, now isn't it?
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
skynet
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What is the point of dbw? Does it make cruise control more user friendly or something?
No expert on it, but I would imagine it 'could' improve drive-ability if tuned well, as the ECU can now control the throttle itself, so instead of trying to measure airflow and guess when airflow is fixing to increase or decrease, it's in complete control.
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
skynet
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What is the point of dbw? Does it make cruise control more user friendly or something?
No expert on it, but I would imagine it 'could' improve drive-ability if tuned well, as the ECU can now control the throttle itself, so instead of trying to measure airflow and guess when airflow is fixing to increase or decrease, it's in complete control.
dbw is a bitch to drive. You have no control on the sensibility of the pedal. You press little it's not enough to start, you press little more, are are like at WOT. Can I please have something between little gas and WOT? I hate my gf's Yaris for that.
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i wonder if it goes to WOT if you can put the gas to the floor and it resets the signal or something and stops hitting rev limit.
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Its for keeping warranty claims down as the OE can now stop you from wide open dumping the throttle etc and limit throttle between shifts bla bla bla. : >:(
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Any rhoestatic resistor/snsor can do that. That has been implemented on Truimphs, Ducatis, and Arilias for years. I have shown Triumph a 400 miles excessive rev limit bounce on a new bike and they warrantied it anyway. They stand behind their shit.
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
you cant expect a little stepper motor to work perfectly all the time in 200F heat/oil ect
Right but the way the system is designed, if there is a failure, the sevro is supposed to close not go WOT.
you got to remember many new engines run at 100% throttle when cruising, they regulate the rpms with valve lift/mixture/timing/egr ect
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This thread needs some random tits
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I like it how the drivers they featured were A)stupid foreigners B)moronic woman who chose a river vs ignition or transmission options & C)gook loving pig (+family) that has earned his special place in hell for all the speeding tickets that he wrote to the rest of the populous. Back in the 70s my parents had a throttle butterfly stick open, I think my mom said she chose the ruin the transmission option vs ignition. Either way smart people know how to drive.
This is purely a form of natural selection for the tree hugging yuppie scum to weed themselves out of existence. My DD may be a fuel guzzling v8 powered 4x4, but at least I know that if my throttle malfunctions I will surely live due to the sheer GVW/chassis design.. can't say the same for the hybrid driver I mow over in the process. Thank you Toyota for bringing the plains of the Serengeti to my freeway. I will thoroughly enjoy watching the Thomson's Gazelles finding their demise with a poorly designed over priced new car.
"Don't turn off the car" - WTF is that shit? In a moment of panic I think that any logical option of stopping would work for the untrained driver. The brakes will still work without vacuum diaphragm assist, steering wheel may lock on the car but the shit hitting the fan going a lesser speed will still be better than WOT and speed climbing to infinity (err governor). The icing on the cake is that the bulk of the modern Toyo's come with severely underpowered brakes which I'm sure turn to fade within seconds of the driver soiling themselves (can you say Scion).
I shall keep laughing until the drive by wire vehicles become banned. My bitter ass is out.
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the challenger was dbw too
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fhbmortgageoracle.files.wordpress.com%2F2009%2F02%2Fchallenger-explosion.jpg&hash=77ab77d40c1ded53626aa03ec87e96c7e16ebedb)
nobody?
ZING!
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
you cant expect a little stepper motor to work perfectly all the time in 200F heat/oil ect
Right but the way the system is designed, if there is a failure, the sevro is supposed to close not go WOT.
Depends on whether the failure is the ECU holding the throttle WOT, now isn't it?
Big Brother offing people, many newer cars especially GM have remote control abilities, usually to shut them down, but who knows...
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So what do you guys think the cause of these accidents are? I'm saying the technology is not to blame. There has to be some under-lying cause here.
Theories?
you cant expect a little stepper motor to work perfectly all the time in 200F heat/oil ect
Right but the way the system is designed, if there is a failure, the sevro is supposed to close not go WOT.
Depends on whether the failure is the ECU holding the throttle WOT, now isn't it?
Big Brother offing people, many newer cars especially GM have remote control abilities, usually to shut them down, but who knows...
now that is just too much interference. Why in the fuck would I want someone in a fucking computer room to have full access to my vehicle while I 'm driving it, or trying to run from the cops? Fuck that shit. Cars are oriented to the lazy, wealthy, stupid and incompetent people that will ALWAYS use the DEALERS service department, those fucking highway pirates. Case in point, A friend of mine's (who is gone to basic training) mother actually paid the stealership $40 to install WIPER BLADES. WTF??
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I asked to 4 people how they would stop the car if something happen and they all say "hand brake" which is the the best answer...
If you have a Yaris, maybe you will be able to stop de 100hp engine with brakes, but on a 200+hp car, I really doubt it.
Neutral should be the first idea, then when you see the car still rev up like a motherfucker you shut it down.
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you got to remember many new engines run at 100% throttle when cruising, they regulate the rpms with valve lift/mixture/timing/egr ect
What the fuck are you talking about?
They only run at 66% throttle.
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Nicely played, Sir.
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This thread needs some random tits
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MOAR!
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someone needs to figure out if throttle position is read solely off the pedal position or the actual throttle angle.
judging from these incidents it reads off the actual throttle position. that means you could, in theory, rig a cable to the throttle and modify the e-throttle to accept the pulley.
now you have WOT shifts
problem solved
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someone needs to figure out if throttle position is read solely off the pedal position or the actual throttle angle.
judging from these incidents it reads off the actual throttle position. that means you could, in theory, rig a cable to the throttle and modify the e-throttle to accept the pulley.
now you have WOT shifts
problem solved
Typically the pedal position switch sends a request to the PCM, then the PCM commands the stepper motor in the TB which also has position feedback to let the PCM know know where the throttle plate actually is.
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someone needs to figure out if throttle position is read solely off the pedal position or the actual throttle angle.
judging from these incidents it reads off the actual throttle position. that means you could, in theory, rig a cable to the throttle and modify the e-throttle to accept the pulley.
now you have WOT shifts
problem solved
Typically the pedal position switch sends a request to the PCM, then the PCM commands the stepper motor in the TB which also has position feedback to let the PCM know know where the throttle plate actually is.
Every implementation I've seen had a TPS vs RPM table that translated to a requested torque value. Then there is a 2D throttle angle vs requested torque table that dictates how far the throttle is cracked open. Pretty interesting stuff, really.
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Every implementation I've seen had a TPS vs RPM table that translated to a requested torque value. Then there is a 2D throttle angle vs requested torque table that dictates how far the throttle is cracked open. Pretty interesting stuff, really.
I haven't has the chance to dig that far into it.
Sounds pretty neat.
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What was so wrong with a normal cable linking the accelerator to the throttle?
That's what I'm saying. Drive by wire sucks cock, and it seems Toyota is in for the ass suing of a lifetime until they come clean.
Lets all look for the silver lining.
A) Toyota will swap to a triple-redundant system once they get reamed.
B) Dealers won't be able to GIVE them away
C) Cable-driven cars may be coming back.
My favorite is a+b. I wouldn't mind driving a now-fixed run-away car for free, since I seem to be one of the few idiots in this nation that knows about taking the car out of gear. They make that painfully clear at the end of that vid - put in neutral, hold the start button for a few seconds. What is sad/crazy is the 911 dispatcher even told the dude in the Lexus to turn it off. All the guy had for a response is PRAY...fuck your god, learn how a fucking 3-ton deathsled works. They could probably quote 2/3 of their bible, but couldn't remember how to turn a car off. FAIL.
AFAIK, DBW does not control the tranny linkage. That would be one hell of a glitch to keep a fully-electronic shift mechanism (if there are any) to keep it in gear too, and about as random as being killed by radiation from an alien anal probe. Anyways, this just re-affirms my hatred for DBW and autotragic cars.
ALL of those lives would have been saved if there was a clutch pedal....
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Guys?
Remember the whole concept of removing the warning tags from everything and letting the problem take care of itself? We need to actively prevent how to stop modern vehicles from getting into the hands of the consumers - it's in the owner's manual, if they can't fucking RTFM let them die.
I'm all for this, but it has to be an all-or-nothing campaign.
BTW the way stepper motors and servo motors work, they will remain at whatever position they are at if they loose power, stall/bind, or if the sensing pot (servo) takes a shit. It actually could be somethign as simple as that, a pot that reads zero resistance at WOT and gets shorted out. ECU keeps adding throttle thinking it's not moving (DBW cracks the butterfly to idle, IACV is gone).
I also know some cars throws an engine code, even kill the car, when airflow is much greater than it should be with a given throttle angle. My bro's old POS Hyundai would randomly die on the freeway, and gave 3 engine codes because a post-MAF nipple was leaking air past the MAF on his DBW motor. FUnny how a Hyundai of all cars is safer than a Lexus....
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they do incorperate a return spring to close the throttle if power is lost to the motor
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they do incorperate a return spring to close the throttle if power is lost to the motor
and if the throttle pot doesn't loose power and remains at WOT?????
What is the rating on the servo control? A little 200 oz (13 lb) servo makes you think.
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they do incorperate a return spring to close the throttle if power is lost to the motor
and if the throttle pot doesn't loose power and remains at WOT?????
What is the rating on the servo control? A little 200 oz (13 lb) servo makes you think.
You know, you'd think car manufacturers would have enough sense to build it fail-safe in every situtation imaginable. Like if the TB is wide open and power to the servo goes off, it fails back closed. And also the ecu sees the problem and kills the fuel and spark too. Or if for any reason the throttle is open or engine is not at idle and the driver touches the brake pedal, fuel cut. I'm really surprised that the engineers that designed the system didn't build this tripple-safe. So that even if 1/2 the fail safe shit failed, it was still safe.
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You know, you'd think car manufacturers would have enough sense to build it fail-safe in every situtation imaginable. Like if the TB is wide open and power to the servo goes off, it fails back closed. And also the ecu sees the problem and kills the fuel and spark too. Or if for any reason the throttle is open or engine is not at idle and the driver touches the brake pedal, fuel cut. I'm really surprised that the engineers that designed the system didn't build this tripple-safe. So that even if 1/2 the fail safe shit failed, it was still safe.
But I think that's the problem - the ecu DOESN'T think it's failed. A stepper motor may return with a very stiff spring, but may also cause enough feedback to fry something. A servo motor usually takes a lot of force to move backwards unpowered.
What's so ironic is how the first batches of DBW planes took headers into mountains, runways, fields, and sometimes residential areas too. Shit would break or glitch, and no mechanical back-up meant the pilot had zero control. There really should be an emergency kill that will serarate the stepper motor from the shaft and return to zero throttle. Then again, this is Toyota.
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You know, you'd think car manufacturers would have enough sense to build it fail-safe in every situtation imaginable. Like if the TB is wide open and power to the servo goes off, it fails back closed. And also the ecu sees the problem and kills the fuel and spark too. Or if for any reason the throttle is open or engine is not at idle and the driver touches the brake pedal, fuel cut. I'm really surprised that the engineers that designed the system didn't build this tripple-safe. So that even if 1/2 the fail safe shit failed, it was still safe.
But I think that's the problem - the ecu DOESN'T think it's failed. A stepper motor may return with a very stiff spring, but may also cause enough feedback to fry something. A servo motor usually takes a lot of force to move backwards unpowered.
What's so ironic is how the first batches of DBW planes took headers into mountains, runways, fields, and sometimes residential areas too. Shit would break or glitch, and no mechanical back-up meant the pilot had zero control. There really should be an emergency kill that will serarate the stepper motor from the shaft and return to zero throttle. Then again, this is Toyota.
Yeah, it's obvious they didn't build it that way. I was just saying you'd think they would. I guess I'm saying it's surprising/sad they skimped. But on a plus note, like you said, if they can't give them away a couple years from now I may have me a new DBW lexus. :)
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http://news.yahoo.com/s/ap/us_toyota_floor_mats (http://news.yahoo.com/s/ap/us_toyota_floor_mats)
how much you wanna bet the 'pedal replacement' is actually replacing the pedal position sensor that fails wide open?
To fix the problem, Toyota and the government said dealers will shorten the length of the accelerator pedal on the recalled vehicles and in some cases remove foam from beneath the carpeting near the pedal to increase the space between the pedal and the floor. They said owners of the ES350, Camry and Avalon would be the first to receive notification because the vehicles are believed to have the highest risk for pedal entrapment.
Toyota also plans to install a brake override system on the Camry, Avalon and Lexus ES350, IS350 and IS250 models, Toyota and NHTSA said. The brake override system will ensure the vehicle will stop if the brake and the accelerator pedals are applied at the same time.
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Here's something to think about.
You get in your car and do the daily drive to work.
After reaching the highway and crossing the speed of, oh lets say 50mph the car goes WOT.
You shift in to neutral, push the start button. Nothing car keeps accelerating.
Then you remember your Mistresses husband is a comp/electronic genus. *or you pissed off the wrong government officials*
:evil:
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Everyone knows a imporvised timed/motion sensing anti-personal explosive is way better. Death is usually more painful, and surviving is far worse. Shaped charges FTW.
http://news.yahoo.com/s/ap/us_toyota_floor_mats (http://news.yahoo.com/s/ap/us_toyota_floor_mats)
how much you wanna bet the 'pedal replacement' is actually replacing the pedal position sensor that fails wide open?
To fix the problem, Toyota and the government said dealers will shorten the length of the accelerator pedal on the recalled vehicles and in some cases remove foam from beneath the carpeting near the pedal to increase the space between the pedal and the floor. They said owners of the ES350, Camry and Avalon would be the first to receive notification because the vehicles are believed to have the highest risk for pedal entrapment.
Toyota also plans to install a brake override system on the Camry, Avalon and Lexus ES350, IS350 and IS250 models, Toyota and NHTSA said. The brake override system will ensure the vehicle will stop if the brake and the accelerator pedals are applied at the same time.
I'd bet the odds are 100/1, and only beacuse you can't divide by zero :P
They already proved that cars not equiped with the all-season mats, or nothing at all, are still playing Bonniville Highspeed Record. I think it's just damage control for a situation they allowed to spiral out of control.
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Everyone knows a imporvised timed/motion sensing anti-personal explosive is way better. Death is usually more painful, and surviving is far worse. Shaped charges FTW.
yes but that raises questions in the wrong direction.