electronic throttle
in [Technical]
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From: Ed Pawlowski on 11 Mar 2010 05:56 "jim beam" <me(a)privacy.net> wrote > not always dude. stopping distances with abs can be considerably longer, > especially in conditions like snow. It allows for better steering control though, especially for the driver that does not know how to deal with those conditions.
From: Tom on 11 Mar 2010 07:15 "Ed Pawlowski" <esp(a)snetnospam.net> wrote in message news:jIGdnQ8vRK7fUQXWnZ2dnUVZ_h2dnZ2d(a)giganews.com... > > > "jim beam" <me(a)privacy.net> wrote >> not always dude. stopping distances with abs can be considerably longer, >> especially in conditions like snow. > > It allows for better steering control though, especially for the driver > that does not know how to deal with those conditions. in snow ABS enables you to steer in a straight line as much as possible brakes only results in a 180 or 360 turn or slide into a ditch. I doubt if not having ABS will stop as soon as with. I drive on snow covered hills a lot this year more than others ABS is better and yes I have been in cars without for years and have managed but not as good as with ABS. Have had a drivers license for 56 years.
From: jim beam on 11 Mar 2010 09:23 On 03/10/2010 10:45 PM, DC wrote: > "jim beam"<me(a)privacy.net> wrote in message > news:IeudnWYmUdD27AXWnZ2dnUVZ_tmdnZ2d(a)speakeasy.net... >> On 03/09/2010 10:15 PM, Rodan wrote: >>> clare(a)snyder.on.ca wrote: >>> >>> Toyota throttle has 2 hall effect sensors. The output of one tracks the >>> other but is offset. In other words, one starts at say, 0 volts, and >>> the >>> other at, say 1 volt - and they increase in step with each other. >> >> how can that be true??? >> >> http://en.wikipedia.org/wiki/Hall_effect >> >> hall effect sensors are used for gross position detection, not small scale >> linear deflections. they can be used for "wot" detection, but their >> ability to work over a wide positioning range is limited. that's why >> they're used in timing for things like crank position [rotational] sensors >> where you're counting pulse rates, not graduation functions. >> > > These linear Hall effect sensors do indeed exist - and being non contact are > arguably highly reliable > http://www.potentiometers.com/select_hall.cfm > > Dave > > interesting. but at >10x the price of a simple potentiometer solution, which is afterall, also known to be highly reliable, would an auto manufacturer really use one? -- nomina rutrum rutrum
From: DAS on 11 Mar 2010 09:51 You should both appear on the UK TV programme Grumpy Old Men (I kid you not) as Grand Seniors... DAS To reply directly replace 'nospam' with 'schmetterling' -- <clare(a)snyder.on.ca> wrote in message news:76odp5hignd4i13lccrblb8u9rrvt276gp(a)4ax.com... > 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.
From: cuhulin on 11 Mar 2010 11:25
Cars are getting fancier and fancier all the time.It's like driving a PC on wheels. cuhulin |