Quattro not working as advertised - Anyone else experienced this?
#31
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
> BTW, I have never seen any advertisements that claim that one side or
> the other of the car will get power if the other slips. Quattro is a
> front/rear thing, not a side/side thing.
>
http://www.audi.com.tw/glossary/e/edl.htm
Quote:
The electronic differential lock (EDL) permits smooth, comfortable starts on
road surfaces that do not have a uniform coefficient of friction. If a wheel
starts to spin, EDL brakes it as necessary so that power is transmitted to
the wheel with the better traction. EDL reduces tire wear and works up to
about. 40 km/h (quattroŽ: up to about 80 km/h). EDL is part of the
electronic stabilization program (ESP) and the traction control (ASR).
This is the advert. Notice the piece "If a wheel starts to spin, EDL brakes
it AS NECESSARY so that power is transmitted to the wheel with THE BETTER
TRACTION". This is totally false as in my scenario, the two wheels with the
better traction where the ones that did even get any power at all, least of
all the NECESSARY amount transferred from the brake actuation.
#32
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
Notice this quote from Audiworld too:
http://www.audiworld.com/tech/wheel6.shtml
Electronic Differential Lock (EDL/EDS) AudiWorld 1996
Electronic differential lock, or EDS (german acronym for same), is not a
differential lock as per usual. It uses the ABS sensors at driven wheels
(i.e. left/right front on FWD, left/right front and left/right rear on
quattro), to determine if one of the two wheels is spinning faster than the
other. At some speed differential (approximately 25 mph / 40 km/h), the
highly sophisticated fifth-generation ABS/EBV actually pulsates the brake
momentarily at the spinning wheel, effectively transferring the torque
through the open differential to the wheel with more traction. This system
is effective, but due to the stress that it would create on the braking
system, it is only used up to speeds of about 25 mph / 40km/h.
> BTW, I have never seen any advertisements that claim that one side or
> the other of the car will get power if the other slips. Quattro is a
> front/rear thing, not a side/side thing.
>
http://www.audiworld.com/tech/wheel6.shtml
Electronic Differential Lock (EDL/EDS) AudiWorld 1996
Electronic differential lock, or EDS (german acronym for same), is not a
differential lock as per usual. It uses the ABS sensors at driven wheels
(i.e. left/right front on FWD, left/right front and left/right rear on
quattro), to determine if one of the two wheels is spinning faster than the
other. At some speed differential (approximately 25 mph / 40 km/h), the
highly sophisticated fifth-generation ABS/EBV actually pulsates the brake
momentarily at the spinning wheel, effectively transferring the torque
through the open differential to the wheel with more traction. This system
is effective, but due to the stress that it would create on the braking
system, it is only used up to speeds of about 25 mph / 40km/h.
> BTW, I have never seen any advertisements that claim that one side or
> the other of the car will get power if the other slips. Quattro is a
> front/rear thing, not a side/side thing.
>
#33
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
Notice this quote from Audiworld too:
http://www.audiworld.com/tech/wheel6.shtml
Electronic Differential Lock (EDL/EDS) AudiWorld 1996
Electronic differential lock, or EDS (german acronym for same), is not a
differential lock as per usual. It uses the ABS sensors at driven wheels
(i.e. left/right front on FWD, left/right front and left/right rear on
quattro), to determine if one of the two wheels is spinning faster than the
other. At some speed differential (approximately 25 mph / 40 km/h), the
highly sophisticated fifth-generation ABS/EBV actually pulsates the brake
momentarily at the spinning wheel, effectively transferring the torque
through the open differential to the wheel with more traction. This system
is effective, but due to the stress that it would create on the braking
system, it is only used up to speeds of about 25 mph / 40km/h.
> BTW, I have never seen any advertisements that claim that one side or
> the other of the car will get power if the other slips. Quattro is a
> front/rear thing, not a side/side thing.
>
http://www.audiworld.com/tech/wheel6.shtml
Electronic Differential Lock (EDL/EDS) AudiWorld 1996
Electronic differential lock, or EDS (german acronym for same), is not a
differential lock as per usual. It uses the ABS sensors at driven wheels
(i.e. left/right front on FWD, left/right front and left/right rear on
quattro), to determine if one of the two wheels is spinning faster than the
other. At some speed differential (approximately 25 mph / 40 km/h), the
highly sophisticated fifth-generation ABS/EBV actually pulsates the brake
momentarily at the spinning wheel, effectively transferring the torque
through the open differential to the wheel with more traction. This system
is effective, but due to the stress that it would create on the braking
system, it is only used up to speeds of about 25 mph / 40km/h.
> BTW, I have never seen any advertisements that claim that one side or
> the other of the car will get power if the other slips. Quattro is a
> front/rear thing, not a side/side thing.
>
#34
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
Notice this quote from Audiworld too:
http://www.audiworld.com/tech/wheel6.shtml
Electronic Differential Lock (EDL/EDS) AudiWorld 1996
Electronic differential lock, or EDS (german acronym for same), is not a
differential lock as per usual. It uses the ABS sensors at driven wheels
(i.e. left/right front on FWD, left/right front and left/right rear on
quattro), to determine if one of the two wheels is spinning faster than the
other. At some speed differential (approximately 25 mph / 40 km/h), the
highly sophisticated fifth-generation ABS/EBV actually pulsates the brake
momentarily at the spinning wheel, effectively transferring the torque
through the open differential to the wheel with more traction. This system
is effective, but due to the stress that it would create on the braking
system, it is only used up to speeds of about 25 mph / 40km/h.
> BTW, I have never seen any advertisements that claim that one side or
> the other of the car will get power if the other slips. Quattro is a
> front/rear thing, not a side/side thing.
>
http://www.audiworld.com/tech/wheel6.shtml
Electronic Differential Lock (EDL/EDS) AudiWorld 1996
Electronic differential lock, or EDS (german acronym for same), is not a
differential lock as per usual. It uses the ABS sensors at driven wheels
(i.e. left/right front on FWD, left/right front and left/right rear on
quattro), to determine if one of the two wheels is spinning faster than the
other. At some speed differential (approximately 25 mph / 40 km/h), the
highly sophisticated fifth-generation ABS/EBV actually pulsates the brake
momentarily at the spinning wheel, effectively transferring the torque
through the open differential to the wheel with more traction. This system
is effective, but due to the stress that it would create on the braking
system, it is only used up to speeds of about 25 mph / 40km/h.
> BTW, I have never seen any advertisements that claim that one side or
> the other of the car will get power if the other slips. Quattro is a
> front/rear thing, not a side/side thing.
>
#35
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
"JP Roberts"
>
> This is the advert. Notice the piece "If a wheel starts to spin, "
Yeah, but they didn't say anything about "If two wheels start to spin..."
like it was in your case.
Pete
PS: I know it sucks. The system isn't perfect. It's getting old and there
are now more advanced AWD systems out there.
#36
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
"JP Roberts"
>
> This is the advert. Notice the piece "If a wheel starts to spin, "
Yeah, but they didn't say anything about "If two wheels start to spin..."
like it was in your case.
Pete
PS: I know it sucks. The system isn't perfect. It's getting old and there
are now more advanced AWD systems out there.
#37
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
"JP Roberts"
>
> This is the advert. Notice the piece "If a wheel starts to spin, "
Yeah, but they didn't say anything about "If two wheels start to spin..."
like it was in your case.
Pete
PS: I know it sucks. The system isn't perfect. It's getting old and there
are now more advanced AWD systems out there.
#38
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
gcmschemist@gmail.com wrote:
or a switch like the 4000/5000 series. (urQuattro too, right?)
>
> E.P.
>
Well I don't have a switch. But I have never been stuck, so I'm happy.
#39
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
gcmschemist@gmail.com wrote:
or a switch like the 4000/5000 series. (urQuattro too, right?)
>
> E.P.
>
Well I don't have a switch. But I have never been stuck, so I'm happy.
#40
Guest
Posts: n/a
Re: Quattro not working as advertised - Anyone else experienced this?
gcmschemist@gmail.com wrote:
or a switch like the 4000/5000 series. (urQuattro too, right?)
>
> E.P.
>
Well I don't have a switch. But I have never been stuck, so I'm happy.