Innovate Motorsports LogWorks 3 - Manual (Page 92)

LogWorks3_Manual_1.01.doc - 92 -
Clicking on one of the four rectangular handles allows you to drag that marker position. While the
mouse button is down the exact value of that marker position is shown.
The ellipse quadrants are focused at the origin of the x-y coordinate system, which is the center
point of the polar coordinate view.
8.8.2 Interpretation example of Polar View
The above example shows all the side-force and acceleration/braking data points of a 42-minute
road course session recorded with an LC-1 and DL-32.
The marker lines are adjusted in this case to approximate the traction limit of the car and it’s tires.
On the upper half of the graph the data shows that the driver did a good job when accelerating
out of turns. The measured force points are close to the traction limit of the car. The plot indicates
less force as the acceleration approaches straight ahead because the car can turn with more
force than it has power to accelerate and the straight-line acceleration is in the higher gears on
that particular track.
On the lower half of the graph the data shows he did not take full advantage of the available
traction on turn entry while braking. The plot has a marked peak toward the bottom (braking in a
straight line), but he did not stay at the traction limit when turning into the corners, particularly to
the left (shown in the lower left quadrant), as there is rarely any combined force of braking and
sideforce at the traction limit in the lower right and left quadrants. This is evident by the un-filled
area between the traction limit indicated by the perimeter marker lines and the actual data plot.
After seeing this data and getting some “consultation” from his crew and friends/competitors, this
driver improved his lap times over two seconds in a two-minute lap.