electronic throttle
in [Technical]
|
From: Bill Putney on 15 Mar 2010 17:32 clare(a)snyder.on.ca wrote: > On Mon, 15 Mar 2010 06:22:41 -0400, Bill Putney <bptn(a)kinez.net> > wrote: > >> Rodan wrote: >>> This electronic throttle thing is great. If you believe everything that >>> could be invented has already been been invented, do this: Replace >>> something already invented with something else already invented >>> and call it a new invention. >>> >>> This has been successfully done in automobiles by throwing away the >>> familiar throttle cable and replacing it with a whole new system of >>> electromechanical parts;... >> Is it not true that the drive-by-wire systems have a cable connecting >> the accelerator pedal to the first electronic part? If so, a chain is >> only as strong as its weakest link - literally in this case. If that's >> the case, they'd be foolish to say that one benefit of the hi-tech >> solution is the elimination of the cable. I can believe some of the >> claims of better control of engines systems for power and emissions and >> possibly enhanced safety if it's done right, but they should leave out >> the part about eliminating the mechanical linkage. > > > None that I've seen have the cable you mention. Really? SO you're saying there is some position sensor (potentiometer or whatever) built right into the accelerator pedal (shaft, pivot, whatever)? -- Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x')
From: clare on 15 Mar 2010 17:47 On Mon, 15 Mar 2010 17:32:37 -0400, Bill Putney <bptn(a)kinez.net> wrote: >clare(a)snyder.on.ca wrote: >> On Mon, 15 Mar 2010 06:22:41 -0400, Bill Putney <bptn(a)kinez.net> >> wrote: >> >>> Rodan wrote: >>>> This electronic throttle thing is great. If you believe everything that >>>> could be invented has already been been invented, do this: Replace >>>> something already invented with something else already invented >>>> and call it a new invention. >>>> >>>> This has been successfully done in automobiles by throwing away the >>>> familiar throttle cable and replacing it with a whole new system of >>>> electromechanical parts;... >>> Is it not true that the drive-by-wire systems have a cable connecting >>> the accelerator pedal to the first electronic part? If so, a chain is >>> only as strong as its weakest link - literally in this case. If that's >>> the case, they'd be foolish to say that one benefit of the hi-tech >>> solution is the elimination of the cable. I can believe some of the >>> claims of better control of engines systems for power and emissions and >>> possibly enhanced safety if it's done right, but they should leave out >>> the part about eliminating the mechanical linkage. >> >> >> None that I've seen have the cable you mention. > >Really? SO you're saying there is some position sensor (potentiometer >or whatever) built right into the accelerator pedal (shaft, pivot, >whatever)? Absolutely. on the VAST majority.. I've seen an aftermarket unit that connected to a standard throttle-body years ago, but I've not seen an OEM system done that way.
From: Bill Putney on 15 Mar 2010 17:52 clare(a)snyder.on.ca wrote: > On Mon, 15 Mar 2010 17:32:37 -0400, Bill Putney <bptn(a)kinez.net> > wrote: > >> clare(a)snyder.on.ca wrote: >>> On Mon, 15 Mar 2010 06:22:41 -0400, Bill Putney <bptn(a)kinez.net> >>>> Is it not true that the drive-by-wire systems have a cable connecting >>>> the accelerator pedal to the first electronic part?... >>> None that I've seen have the cable you mention. >> Really? SO you're saying there is some position sensor (potentiometer >> or whatever) built right into the accelerator pedal (shaft, pivot, >> whatever)? > Absolutely. on the VAST majority.. I've seen an aftermarket unit > that connected to a standard throttle-body years ago, but I've not > seen an OEM system done that way. OK - you just schooled me. Thanks. -- Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x')
From: Steve Austin on 15 Mar 2010 18:10 Bill Putney wrote: > clare(a)snyder.on.ca wrote: >> On Mon, 15 Mar 2010 06:22:41 -0400, Bill Putney <bptn(a)kinez.net> >> wrote: >> >>> Rodan wrote: >>>> This electronic throttle thing is great. If you believe >>>> everything that >>>> could be invented has already been been invented, do this: Replace >>>> something already invented with something else already invented >>>> and call it a new invention. >>>> >>>> This has been successfully done in automobiles by throwing away the >>>> familiar throttle cable and replacing it with a whole new system of >>>> electromechanical parts;... >>> Is it not true that the drive-by-wire systems have a cable connecting >>> the accelerator pedal to the first electronic part? If so, a chain >>> is only as strong as its weakest link - literally in this case. If >>> that's the case, they'd be foolish to say that one benefit of the >>> hi-tech solution is the elimination of the cable. I can believe some >>> of the claims of better control of engines systems for power and >>> emissions and possibly enhanced safety if it's done right, but they >>> should leave out the part about eliminating the mechanical linkage. >> >> >> None that I've seen have the cable you mention. > > Really? SO you're saying there is some position sensor (potentiometer > or whatever) built right into the accelerator pedal (shaft, pivot, > whatever)? > The pedal position sensor on a GM comes with the pedal and hanger.
From: Bill Putney on 15 Mar 2010 18:36
Steve Austin wrote: > Bill Putney wrote: >> clare(a)snyder.on.ca wrote: >>> On Mon, 15 Mar 2010 06:22:41 -0400, Bill Putney <bptn(a)kinez.net> >>>> Is it not true that the drive-by-wire systems have a cable >>>> connecting the accelerator pedal to the first electronic part?... >>> None that I've seen have the cable you mention. >> Really? SO you're saying there is some position sensor (potentiometer >> or whatever) built right into the accelerator pedal (shaft, pivot, >> whatever)? > The pedal position sensor on a GM comes with the pedal and hanger. Yeah - that's what I'm hearing. -- Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x') |