electronic throttle
in [Technical]
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From: David Skelton on 9 Mar 2010 13:45 > some??? damned few dude - that's why we have abs. I thought the main reason for ABS is to maintain steering control when the brakes were pressed too hard, so hazards could be avoided. But, ABS does not work so well in the very wet or icy conditions. I remember that Audis of the early nineties had a switch to turn off the ABS function. Also, quite a few cars nowadays have 'brake assist' that increases the pressure in the brake lines if the 'car' decides the brake pedal was not pressed hard enough. This pressure is not boosted by the servo system though. Best regards David --- news://freenews.netfront.net/ - complaints: news(a)netfront.net ---
From: Grumpy AuContraire on 9 Mar 2010 16:22 clare(a)snyder.on.ca wrote: > On Mon, 08 Mar 2010 15:12:54 -0600, Grumpy AuContraire > <GrumpyOne(a)GrumpyvilleNOT.com> wrote: > >> clare(a)snyder.on.ca wrote: >>> On Sun, 07 Mar 2010 18:05:07 -0500, News <News(a)Groups.Name> wrote: >>> >>>> clare(a)snyder.on.ca wrote: >>>>> On Sun, 7 Mar 2010 11:10:20 -0800, "theref" <theref(a)seanet.com> wrote: >>>>> >>>>>> "Grumpy AuContraire" <GrumpyOne(a)GrumpyvilleNOT.com> wrote in message >>>>>> news:99adnZJAetdSdQ7WnZ2dnUVZ_qidnZ2d(a)giganews.com... >>>>>>> bjn wrote: >>>>>>>> On Sat, 06 Mar 2010 10:38:19 -0500, Bill Putney <bptn(a)kinez.net> wrote: >>>>>>>> >>>>>>>>> jim beam wrote: >>>>>>>>>> if you buy all this fear-mongering idiocy that electronic throttle is a >>>>>>>>>> problem, and that brakes, transmissions and ignition kill switches can >>>>>>>>>> all simultaneously fail causing a driver to lose control, it might be >>>>>>>>>> worth auto manufacturers of all stripes to adopt a slightly different >>>>>>>>>> implementation of electronic throttle [e.t.] - if not for mechanical >>>>>>>>>> reasons, but to shut the idiots up... >>>>>>>>> The lawyers, politicians, and news media can convince the public of the >>>>>>>>> impossible (failure even a totally fail safe system) any time they >>>>>>>>> decide to do it depending on political or monetary motivation. IOW - >>>>>>>>> the people and companies who do a good job of designing are going to get >>>>>>>>> punished anyway (unless they know how to play the game in a corrupt >>>>>>>>> system). There are people in our society whose life goal is to make >>>>>>>>> sure that that happens. >>>>>>>> The problem is that now lawyers, politicians and news media are driving >>>>>>>> (no >>>>>>>> pun intended) solution. The way I see them talking, cars will wind up >>>>>>>> with >>>>>>>> a fail-safe throttle that is more fail-safe than the controls of a jumbo >>>>>>>> passenger jet. >>>>>>>> >>>>>>> I'm not sure about this but for sure... The causes you cite certainly >>>>>>> contributed in getting to where we're at! >>>>>>> >>>>>>> Oh, don't forget that little incident when a B-777's engines went to idle >>>>>>> about a minute before touch down at Heathrow about a year ago. Aircraft >>>>>>> was totaled but there were no major injuries. >>>>>>> >>>>>>> Cause has been assessed to software/computer glitch. >>>>>>> >>>>>>> JT >>>>>> I believe that was traced to icing in the fuel system. SOP now is to cycle >>>>>> fuel after prolonged low temp at altitude. >>>>> Icing on a JET????????? >>>>> Don't think so. >>>> Absolutely. Determined to be cause of BA 777 landing short at Heathrow. >>> >>> OK - I looked it up. Technically this was fuel jelling - common with >>> diesel fuel in arctic conditions. In the case of the Rolls turbines, >>> it was a design fault in the fuel pre-heater unit which resulted in a >>> mandatory replacement with a redesigned heat exchanger. >>> >>> Different than the carb icing on a prop plane. >> >> Good point. >> >> I like to read the whole technical report as opposed to what was >> published in a paper. >> >> JT >> >> (Who remembers years ago a VW beetle icing up - A little "dry" gas took >> care of the problem quickly) > > > I had my 49 beetle vapour lock and ice up on the same one-day trip > with weather in the high 80's F ( and roughly 100% humidity) Day-yam... You must be older than me... '49 beetle??? <groan> JT
From: Grumpy AuContraire on 9 Mar 2010 16:24 Bill Putney wrote: > clare(a)snyder.on.ca wrote: >> On Mon, 08 Mar 2010 15:12:54 -0600, Grumpy AuContraire >> <GrumpyOne(a)GrumpyvilleNOT.com> wrote: > >>> (Who remembers years ago a VW beetle icing up - A little "dry" gas >>> took care of the problem quickly) > >> I had my 49 beetle vapour lock and ice up on the same one-day trip >> with weather in the high 80's F ( and roughly 100% humidity) > > Different situation, but I had a car overheat in what is called a winter > hurricane in CO in sub-freezing whether one time - the snow blew so hard > that it clogged the radiator fins, and the engine overheated. Reminded > me of "Oh Suzanna" - "The sun so hot I froze to death", except the > opposite. > Occasionally people would skimp on the anti-freeze/water ratio and the coolant would become slushy. Just a little moisture on the exterior of the radiator in motion would drive the temperature down and bingo! No circulation and an overheated engine! Ah... The good ol' days.. JT
From: Bill Putney on 9 Mar 2010 18:28 C. E. White wrote: > "Dave" <hairy411(a)hotmail.com> wrote in message > news:7vj8brFrhvU1(a)mid.individual.net... > ("stored vaccum" is sort of a backwards concept to me, but you can > think of it in that manner)... Understood - but what terminology would you suggest that is better? I laugh when people challenge a person for saying the intake pulls air into the throttle body - they'll say "No - it's the outside air pushing inward". Well - duh. But some things are best expressed with language that may not be anally accurate but the inaccuracy is understood by the participants. Kind of like people who take an arbitrary rule and think they understand it - like "Never split an infinitive" - which the experts now thankfully say is acceptable. Or "Never use a double negative". Hogwash! There are situations where it is exactly what's needed to fully convey the thought. "Never use 'whose' to refer to an object". B.S. "Don't end a sentence with a preposition", etc., etc., etc. Arbitrary rules should not cause language to get in the way of communicating ideas and information. -- Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x')
From: clare on 9 Mar 2010 18:59
On Tue, 09 Mar 2010 15:22:07 -0600, Grumpy AuContraire <GrumpyOne(a)GrumpyvilleNOT.com> wrote: >clare(a)snyder.on.ca wrote: >> On Mon, 08 Mar 2010 15:12:54 -0600, Grumpy AuContraire >> <GrumpyOne(a)GrumpyvilleNOT.com> wrote: >> >>> clare(a)snyder.on.ca wrote: >>>> On Sun, 07 Mar 2010 18:05:07 -0500, News <News(a)Groups.Name> wrote: >>>> >>>>> clare(a)snyder.on.ca wrote: >>>>>> On Sun, 7 Mar 2010 11:10:20 -0800, "theref" <theref(a)seanet.com> wrote: >>>>>> >>>>>>> "Grumpy AuContraire" <GrumpyOne(a)GrumpyvilleNOT.com> wrote in message >>>>>>> news:99adnZJAetdSdQ7WnZ2dnUVZ_qidnZ2d(a)giganews.com... >>>>>>>> bjn wrote: >>>>>>>>> On Sat, 06 Mar 2010 10:38:19 -0500, Bill Putney <bptn(a)kinez.net> wrote: >>>>>>>>> >>>>>>>>>> jim beam wrote: >>>>>>>>>>> if you buy all this fear-mongering idiocy that electronic throttle is a >>>>>>>>>>> problem, and that brakes, transmissions and ignition kill switches can >>>>>>>>>>> all simultaneously fail causing a driver to lose control, it might be >>>>>>>>>>> worth auto manufacturers of all stripes to adopt a slightly different >>>>>>>>>>> implementation of electronic throttle [e.t.] - if not for mechanical >>>>>>>>>>> reasons, but to shut the idiots up... >>>>>>>>>> The lawyers, politicians, and news media can convince the public of the >>>>>>>>>> impossible (failure even a totally fail safe system) any time they >>>>>>>>>> decide to do it depending on political or monetary motivation. IOW - >>>>>>>>>> the people and companies who do a good job of designing are going to get >>>>>>>>>> punished anyway (unless they know how to play the game in a corrupt >>>>>>>>>> system). There are people in our society whose life goal is to make >>>>>>>>>> sure that that happens. >>>>>>>>> The problem is that now lawyers, politicians and news media are driving >>>>>>>>> (no >>>>>>>>> pun intended) solution. The way I see them talking, cars will wind up >>>>>>>>> with >>>>>>>>> a fail-safe throttle that is more fail-safe than the controls of a jumbo >>>>>>>>> passenger jet. >>>>>>>>> >>>>>>>> I'm not sure about this but for sure... The causes you cite certainly >>>>>>>> contributed in getting to where we're at! >>>>>>>> >>>>>>>> Oh, don't forget that little incident when a B-777's engines went to idle >>>>>>>> about a minute before touch down at Heathrow about a year ago. Aircraft >>>>>>>> was totaled but there were no major injuries. >>>>>>>> >>>>>>>> Cause has been assessed to software/computer glitch. >>>>>>>> >>>>>>>> JT >>>>>>> I believe that was traced to icing in the fuel system. SOP now is to cycle >>>>>>> fuel after prolonged low temp at altitude. >>>>>> Icing on a JET????????? >>>>>> Don't think so. >>>>> Absolutely. Determined to be cause of BA 777 landing short at Heathrow. >>>> >>>> OK - I looked it up. Technically this was fuel jelling - common with >>>> diesel fuel in arctic conditions. In the case of the Rolls turbines, >>>> it was a design fault in the fuel pre-heater unit which resulted in a >>>> mandatory replacement with a redesigned heat exchanger. >>>> >>>> Different than the carb icing on a prop plane. >>> >>> Good point. >>> >>> I like to read the whole technical report as opposed to what was >>> published in a paper. >>> >>> JT >>> >>> (Who remembers years ago a VW beetle icing up - A little "dry" gas took >>> care of the problem quickly) >> >> >> I had my 49 beetle vapour lock and ice up on the same one-day trip >> with weather in the high 80's F ( and roughly 100% humidity) > > >Day-yam... You must be older than me... '49 beetle??? > ><groan> > >JT > I was 21 when I bougt it, and it was 24. Now you know how old I am. |