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How Does It Work ?



The Non Self-Learning systems, like our Sportsman series, periodically compares the rate of acceleration of the crankshaft (or driveshaft) to an Adjustable Fixed Rate (AFR), known as Threshold.  If the shaft RPM rate of change is in excess of that Threshold, then a correction is made.  The comparison is made every cylinder, or1/8 of a turn of the driveshaft.

Basically, this Patented system looks for spikes in shaft 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 user can tune the system to correct larger slips, while not reacting to smaller, harmless, slips.

Self-Learning systems, such as our Lite and Pro series, compare the rate of acceleration of the shaft to a calculated threshold value that is constantly updated based on the average of the previous measurements. This update occurs on every shaft revolution. So, if the last 1/4 turn of the crank shaft (1/8 of a turn of the drive shaft) is faster than the average of the last full revolution, then a slip is detected. Through this very advanced Patented process, the system constantly accounts for track conditions, tire condition, etc. to constantly update the internal settings. These settings are updated as many as 800 times a second to keep the unit calibrated to exactly the right settings regardless of changing conditions.

Basically, the system learns the average rate of acceleration of the shaft, and if there is a sudden spike in RPM above that learned rate, then a correction is made.   With the Self-Learning feature, the user doesn’t have to try to figure out the shaft RPM rate of change and set a “Threshold”, the system does it for you, every shaft revolution!

The user does have an adjustment referred to as “Mode” that sets the overall sensitivity of the system to make a correction based the extent of the tire slip. By adjusting the Mode, the user can tune the system to correct larger slips, while not reacting to smaller, harmless, slips.

By reacting to tire slip so quickly, only a small correction is needed to re-establish grip.  The system can cut a preset amount of power each time a slip is detected, as opposed to try to back off the throttle the right amount without going too far.  It is also impossible to work the throttle hundreds of times a second, even if you could detect the slip quickly enough.

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