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#16
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Re: This could be very dangerous: throttle cable
Sorry, forgot the back!
Keith |
#17
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Re: This could be very dangerous: throttle cable
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#18
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Re: This could be very dangerous: throttle cable
You selfishly waste space, like no other person posting. Give us a break.
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
#19
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Re: This could be very dangerous: throttle cable
Quote:
The throttle valve itself also has two potentiometers and the same principle applies. The only real possibility of trouble comes if the pedal becomes mechanically stuck - the problem Toyota are having. The DBW system has big advantages on turbo-charged cars. The ECU can regulate the boost pressure using both the throttle and the wastegate. As I understand it, at 50% accelerator, it is more efficient for the ECU to open the throttle 100% and regulate the airflow using the wastegate solenoid than it is to have the turbo blowing hard into a half-open throttle. All things considered, DBW is much better than the old cable system.
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Subaru ECU and TCU Website 1992 Alcyone SVX Version L 1992 Alcyone SVX Version L 1994 Alcyone SVX S40-II 2004 Subaru Legacy 2.5 SE Sports Tourer 1996 Subaru Legacy 2.2 GX Wagon 1988 Subaru Justy J12 SL-II |
#20
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Re: This could be very dangerous: throttle cable
Thank you Phil,
I suggested interlocking and limit switches which was decried. I have just read the following within a news item:- Dennis Virag, president of the Automotive Consulting Group, said Toyota has erred in not adopting a brake override system for all its cars - one that shuts off the fuel supply to the engine if the brakes are engaged and the accelerator is down. In my area of expertise, when safety is involved, interlocking is a basic requirement. It has always been clear to me that those designing automotive electrical systems, are negligent in many, many areas, hence my scepticism.
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
#21
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Re: This could be very dangerous: throttle cable
speaking of wasted space...
Keith |
#22
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Re: This could be very dangerous: throttle cable
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The problem with the pedals is the return spring not returning the pedal to idle when released, not sticking wide open (That is what happens when they hang up on the floor mats, but what causes that is people stacking mats, etc) The "Fix" is adding a shim to the pedal to increase the spring tension.
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1992 SVX LS-L #1222 Pearl White 1987 GL Turbo wagon, 5 lug conversion, D/R 5 speed (Rice killer) 1992 Dodge Ram 4x4 diesel (car hauler) 1968 Dodge Polara convertible (Camaro killer) 1990 Toyota Corolla FWD auto (330,000 mile grocery getter) 1986 VW Jetta |
#23
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Re: This could be very dangerous: throttle cable
Rattle your dags Keith.
Kia ora Hondasucks, Worthwhile information and very interesting. The automotive lot are relying on fitting two of a kind, presuming that both will not fail. This would not be unacceptable within my field. An interlocking arrangement is much more secure, on many counts. Cheers, Trevor. To waste more space, --- another great grandson has just arrived.
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
#24
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Re: This could be very dangerous: throttle cable
If one negative is good, then two must surely be better.
Congratulations on the new baby. Hope everything went well.
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Subaru ECU and TCU Website 1992 Alcyone SVX Version L 1992 Alcyone SVX Version L 1994 Alcyone SVX S40-II 2004 Subaru Legacy 2.5 SE Sports Tourer 1996 Subaru Legacy 2.2 GX Wagon 1988 Subaru Justy J12 SL-II |
#25
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Re: This could be very dangerous: throttle cable
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Back to reality! And in Japan on Wednesday, authorities told Toyota to investigate reports of faulty brakes on its high-profile Prius hybrid car as federal safety regulators in the U.S. began a broader investigation into Toyota's electronic systems. The Prius also came under scrutiny this week after Apple co-founder Steve Wozniak claimed that he had been experiencing sudden acceleration in his 2010 Prius because of an alleged "software" glitch. Wozniak's claim, valid or not, underscores questions about Toyota's electronic systems raised by less-famous consumers. In a well-documented case detailed in a petition to the National Highway Transportation Safety Administration (NHTSA), Jordan Ziprin claims that, in 2005, when backing out of a driveway near his home in Phoenix, his 2002 Toyota Camry XLE suddenly accelerated and slammed into a utility box. He did not have his foot on the gas pedal and the car accelerated under its own accord, Ziprin claims. This appears to be an electronic glitch: an issue very different from the mechanical defects cited in the accelerator pedal cases that Toyota is trying to address now with its recall. Hello??? Keith |
#26
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Re: This could be very dangerous: throttle cable
Pay attention... They aren't messing with the software because they don't have anything else to do.
Keith |
#27
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Re: This could be very dangerous: throttle cable
I have heard about a case where a driver, after an accident, claimed that his car had suddenly accelerated of it's own accord.
But the vehicle manufacturer was able to produce a detailed telemetry log from a hidden black box recorder on the car that showed the driver had been driving excessively fast for the whole journey. Some manufacturers are fitting "black boxes" to high-performance cars so they can rebut warranty claims when the car has been tuned or abused. Some people adjust the ECU boost maps to get more power. If the engine blows up as a result, they reflash it back to stock and try to claim on the warranty.
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Subaru ECU and TCU Website 1992 Alcyone SVX Version L 1992 Alcyone SVX Version L 1994 Alcyone SVX S40-II 2004 Subaru Legacy 2.5 SE Sports Tourer 1996 Subaru Legacy 2.2 GX Wagon 1988 Subaru Justy J12 SL-II |
#28
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Re: This could be very dangerous: throttle cable
Quote:
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#29
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Re: This could be very dangerous: throttle cable
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__________________
1992 SVX LS-L #1222 Pearl White 1987 GL Turbo wagon, 5 lug conversion, D/R 5 speed (Rice killer) 1992 Dodge Ram 4x4 diesel (car hauler) 1968 Dodge Polara convertible (Camaro killer) 1990 Toyota Corolla FWD auto (330,000 mile grocery getter) 1986 VW Jetta |
#30
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Re: This could be very dangerous: throttle cable
There is only one company that makes a tool/reader that is able to read it and believe me, they aren't cheap since they have a monopoly on it since they were the ones who wrote the code and designed this feature. A dealership would have no reason to invest in the reader for this. Only law enforcement or insurance companies would have use for this.
There was a special on MSNBC I think and it was about how much all technology can be tracing what you do, whether it be something as obvious as GPS, or your printers, digital cameras, etc all have a form of tracking exactly which camera a picture was taken on or exactly which computer a piece of paper was printed from or exactly which disc drive a cd/dvd was burned from all tracked by putting the model number and serial number embedded in some way. And one of the segments was about the Airbag computer is literally a black box on cars and it dates back to ANY vehicle ever equipped with an airbag computer. Kinda scary because they could easily write the program to store the data for even longer and then insurance companies could use that info to see how you drive and what your rates should be. old article but has some info on the system... if you want to find out more, just "airbag black box" http://www.consumeraffairs.com/news0...es_states.html here's a better one.... http://www.theairbagblog.com/how-air...ata-recording/ Last edited by 1986nate; 02-11-2010 at 11:04 AM. |
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