Originally Posted by
tomato coupe
You have to look at how errors accumulate. The errors for a speed sensor accumulate differently than the errors for GPS, and this gives GPS the advantage for long distances.
The effect of curviness gets worse for GPS over longer distance.
And the error for a wheel sensor is much less (centimeters versus feet for GPS).
The weakness of the wheel sensor is the need for an accurate circumference and for the circumference to be stable.
Originally Posted by
tomato coupe
That's a bit like saying there are more opportunities for your sensor magnet to fall off over longer distances..
No. Losing reception is fairly common (it's a normal issue).
Losing the magnet isn't normal. It's rare that that happens. It's more like losing the GPS.
Originally Posted by
tomato coupe
They use it mainly because it offers better speed measurements.
No. Because they don't have to use it for distance when they are using it for speed.