electronic throttle
in [Technical]
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From: Jeff Strickland on 6 Mar 2010 15:43 "jim beam" <me(a)privacy.net> wrote in message news:uqOdnfZrX4eWKQ_WnZ2dnUVZ_qIAAAAA(a)speakeasy.net... > On 03/06/2010 09:03 AM, Jeff Strickland wrote: >> "jim beam"<me(a)privacy.net> wrote in message >> news:fvudnV-hwr-Z6A_WnZ2dnUVZ_rednZ2d(a)speakeasy.net... >>> 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. >>> >>> first, lets understand e.t. functionality: >>> >>> 1. open the throttle when demanded >>> 2. close throttle when demanded >>> 3. allow "demand" to account for additional requirements like >>> a. de-throttle on shifting for automatics, >>> b. throttle appropriate to load at high demand [eg. full throttle at low >>> rpms can choke an engine and significantly reduce output - thus >>> de-throttle until revs support full open] >> >> >> The functionality is even easier than that -- open the throttle plate >> when >> the gas pedal is pressed and close the throttle plate when the gas pedal >> is >> released. You can get bogged down in semantics if you want, but the >> functiionality is really that simple Go when the pedal is pressed and >> stop >> going when the pedal is released. At the end of the day, anything else is >> a >> variation on pushing the pedal down or releasing the pedal so that it >> comes >> back up. > > yeah, that meets conditions 3.a & 3.b. oh, wait, no it doesn't. > This is the most important part? It's nonsense! The gas pedal does two things, opens the throttle plate and closes the throttle plate. Period. You should ride the bus.
From: jim beam on 6 Mar 2010 16:19 On 03/06/2010 12:43 PM, Jeff Strickland wrote: > "jim beam"<me(a)privacy.net> wrote in message > news:uqOdnfZrX4eWKQ_WnZ2dnUVZ_qIAAAAA(a)speakeasy.net... >> On 03/06/2010 09:03 AM, Jeff Strickland wrote: >>> "jim beam"<me(a)privacy.net> wrote in message >>> news:fvudnV-hwr-Z6A_WnZ2dnUVZ_rednZ2d(a)speakeasy.net... >>>> 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. >>>> >>>> first, lets understand e.t. functionality: >>>> >>>> 1. open the throttle when demanded >>>> 2. close throttle when demanded >>>> 3. allow "demand" to account for additional requirements like >>>> a. de-throttle on shifting for automatics, >>>> b. throttle appropriate to load at high demand [eg. full throttle at low >>>> rpms can choke an engine and significantly reduce output - thus >>>> de-throttle until revs support full open] >>> >>> >>> The functionality is even easier than that -- open the throttle plate >>> when >>> the gas pedal is pressed and close the throttle plate when the gas pedal >>> is >>> released. You can get bogged down in semantics if you want, but the >>> functiionality is really that simple Go when the pedal is pressed and >>> stop >>> going when the pedal is released. At the end of the day, anything else is >>> a >>> variation on pushing the pedal down or releasing the pedal so that it >>> comes >>> back up. >> >> yeah, that meets conditions 3.a& 3.b. oh, wait, no it doesn't. >> > > > This is the most important part? oh jeff... > > It's nonsense! logical disconnect. comprehension failure != system failure. > The gas pedal does two things, opens the throttle plate and > closes the throttle plate. Period. you've never bothered to look at this stuff apparently. with electronic throttle, there is no connection between throttle and pedal. the whole point of electronic throttle is that any throttle opening process is controlled to give the desired engine output functionality. > > You should ride the bus. you should stick to watching tv. -- nomina rutrum rutrum
From: Bob Cooper on 6 Mar 2010 16:30 In article <hmuep4$qd2$1(a)news.eternal-september.org>, crwlrjeff(a)yahoo.com says... > > > This is the most important part? > > It's nonsense! The gas pedal does two things, opens the throttle plate and > closes the throttle plate. Period. > > You should ride the bus. Nonsense? Where have I heard that before? This is what you get if you're foolish enough to to let somebody who names himself after a whiskey, whose logic is limited to the HTML programming he's done for a Toyota fanboy website, and thinks EPS uses a pump - design automobile throttling. Don't worry, nobody in charge of such things is that foolish. Well, maybe Toyota was. And look where it got them.
From: Ed Pawlowski on 6 Mar 2010 17:02 "jim beam" <me(a)privacy.net> wrote >> Drive by wire is certainly a natural progression. What failed is two >> things. One is the Toyota system (whatever that was), > > really? has that been demonstrated yet? i see lots of speculation from > idiots that don't know what the heck they're talking about, and loads of > astroturf from people with a stake in forcing a negative outcome, but i've > yet to see any real evidence of this. You read the papers and watch the news. Regardless of the reason, something failed or it would not have made the news to the degree is has. Faulty design? Faulty electronics? Faulty mechanics? Even if it is proved to be 100% driver error, something failed or that many drivers would not have had the problem. Just as the Audi was shown to be pedal location and driver error, it was a failure to get the job done properly.
From: DAS on 6 Mar 2010 17:25
Jim Beam. do you read the FT, or do you just like calling a spade a spade? DAS To reply directly replace 'nospam' with 'schmetterling' -- "jim beam" <me(a)privacy.net> wrote in message news:uNednTwiCNl9Ww_WnZ2dnUVZ_tidnZ2d(a)speakeasy.net... [...] > nomina rutrum rutrum |