Traction control in an AWD when all 4 wheels loose traction

#1 27th-September-2006, 17:01

Hi everbody!

How does traction control in an AWD detect if all 4 wheels lost
traction at the same time? Like on ice or sand for example? (In my
situation there is *no* center diff. in the AWD)

Thanks,

Chris.

#2 9th-November-2006, 01:09

[posted and mailed]

"chris" <chrissmith2k2@hotmail.com> wrote in news:1159369272.628183.321060
@i3g2000cwc.googlegroups.com:

> Hi everbody!
>
> How does traction control in an AWD detect if all 4 wheels lost
> traction at the same time? Like on ice or sand for example? (In my
> situation there is *no* center diff. in the AWD)
>
> Thanks,
>
> Chris.
>
>

The chance of really loosing all grip instantly & equally is nil, even on
ice....*some* wheel is bound to spin sooner than the others.

Btw, here a nice analysis why brake-operated traction control means wasting
half the power and half the torque, simply because of a how a diff works:

http://www.a1.nl/phomepag/markerink/tad_elec.htm

--
Bye,

Willem-Jan Markerink

The desire to understand
is sometimes far less intelligent than
the inability to understand

<w.j.markerink@a1.nl>
[note: 'a-one' & 'en-el'!]