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Car Forum / Driving, Maintenance, Tuning / Driving / September 2006Traction control in an AWD when all 4 wheels loose traction
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. > Hi everbody! > [quoted text clipped - 5 lines] > > Chris. The ABS kicks in usually. > 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) If it happens fast enough (almost instantaneously), it can't. Traction control actuation is premised on detecting differences in wheel speed. If you suddenly lose traction while turning on water, for instance, you could hit the brakes and lock up all four without actuating the ABS. I only know this because I've seen it happen. A system that also has yaw sensors may be harder to fool and it will be actuating the ABS to counter the yaw. -- C.R. Krieger (Been there; done that) |
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