How Does It Work - DAVIS CT Series Manual

How Does It Work?

Spinning the tires not only makes the car harder to
drive, but it also causes higher tire temps and
excessive tire wear. Lifting off the throttle or
counter steering to correct for this 5% mistake, not
only upsets the rhythm, it slows the car down!
Typically, if a driver makes a 5% mistake with the
throttle, he/she has to correct 20-25% to fix it. But if
the tire slip is detected within one cylinder worth of
crank rotation, as the Davis Technologies systems
do, then a small reduction in power can reduce or
stop the tire slip.
Our Non-Self-Learning systems, such as our CT-1,
periodically compare the rate of acceleration of the
crankshaft to an Adjustable Fixed Rate (AFR), known
as Threshold. If the Engine RPM rate of change is in
excess of that Threshold, then a correction is made;
therefore, reducing the slip.
A comparison is made every cylinder (1/4 of a turn of
the crank shaft).
Basically, this system looks for spikes in
Patented
RPM that are caused by wheel slip. If these spikes
are large enough, then a correction is made,
reducing the slip.
By adjusting the Threshold, the driver can tune the
system to the desired "feel" Self-Learning systems,
such as our CT2-SL, CT3-Sl, CT4-SL or the tiny CT5-
SL compare the rate of acceleration of the
crankshaft to a calculated threshold value that is
constantly updated based on the average of the
previous measurements.
This update occurs on every crankshaft revolution.
7
CT Series Traction Control
www.moretraction.com