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how traction control works

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Old 04-06-2004, 08:30 AM
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does anyone know where i can find a write up on how traction control works? not only on our cars but on like GM's and Ford's? its for a presentation in my motorsports class
Old 04-06-2004, 08:30 AM
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Have not found a whole lot on it, just bits here & there.
Here is what happens on the F-body:

1) wheelspin detected on acceleration
2) spark retard - wheelspin stop? If no...
3) throttle relax - wheelspin stop? If no...
4) ABS apply - wheelspin stop? If no...
5) Give up, set ASR OFF light.

Now, a -smart- traction control for a Torsen car
that was about performance, not safety for yer
grandma, would forget about (2) and (3) and just
apply ABS to the spinning rear wheel until -rear-
tire speeds were within some %. But these cars
want to keep the rear from spinning relative to
the fronts (which means you're hosed if you run
bigs-n-littles too).

But I bet your report would get a better grade if
you didn't just write "TCS licks *****, the end"
so don't use me as your only reference. Here are
some relevant "eye candy" illustrations you can
sprinkle on, anyway.
Attached Thumbnails how traction control works-schematic_abs_sensors.gif   how traction control works-schematic_asm.gif   how traction control works-schematic_indicators.gif   how traction control works-schematic_tcs_switch.gif   how traction control works-accelerator-servo-module.gif  

Old 04-06-2004, 09:07 AM
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Those schematics help a lot, thanks for posting...
Old 04-06-2004, 10:12 AM
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thanks for the info, jimmyblue
Old 04-06-2004, 08:36 PM
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thanks




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