Focus Fanatics - View Single Post - Think I figured out the shuddering when starting from a stop...can't believe it
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Old 10-04-2012, 11:17 AM   #83
pozi240
Focus Enthusiast
 
Join Date: Feb 2012
Fan#: 94835
Location: Halifax, NS, Canada
What I Drive: 2012 Focus 5 door SEL Kona Blue

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Quote:
Originally Posted by dan50 View Post
I thought traction control systems compared the rotational speed of the drive wheels, not torque, to identify slippage.
This was true of TCS systems from years ago, they would only use the ABS wheel speed sensors and even "piggy back" off of the ABS controller to give you a rudimentary TCS system. Nowadays, especially with the advent of Drive-by-Wire throttles, they are much more sophisticated, and use torque parameters, and even vehicle "pitch and yaw" in some cases. My current track bike, an 08 Kawasaki ZX10R Ninja has a TCS system (Kawi calls it "KIMS", or Kawasaki Ignition Management System), and it does not employ ABS or any wheel speed sensors at all, but, rather torque outputs and engine speed alone, and it works rather well (as I found out when on slippery surfaces, LOL). My point is, modern TCS is a LOT deeper involved than just wheel speed inputs.
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2012 Focus SEL 5 door 303a w/Lux pkg in KonaBlue
2012 Escape Limited w/park assist
2010 F150 Supercrew XTR 5.4 4x4
2008 Kawasaki Concours 14 (street)
2008 Kawasaki ZX10R (track only)
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