Autel MaxiTrip TP100 - Speed

λ Variations in vehicle sensors due to temperature and
time;
λ Pump accuracy limits.
2.8 Speed
A. To Do Speed Correction
Speed and distance adjustments are used to compensate for
changes in tire size, gears, tire wear, etc...
There are several means of speed correction:
A. For tire changes, use the formula below to compute an
approximate percentage.
Approximate percentage=
14
( -1) x 100%
Diameter of
Ori
g
inal Tire
Di
a
m
e
t
e
r
o
f
New
tir
e
For example, if the diameter of the of original tire is 30 inches, and
that of the new tire is 40 inches, the percentage should be
( -1) x 100% =33%
40
30
So setting the value to 33% will compensate for the tire change.
B. For gear changes, use the formula below to compute an
approximate percentage.
Approximate percentage =
(1- ) x 100%
Old ratio
New ratio
For example, if the old ratio is 2.75, the new one is 3.25, the
percentage should be
(1- ) x 100%= -18%
3.25
2.75
So setting the value to -18% will compensate for the gear change.