PROFESSIONAL MOTORSPORT

SIMULATION SOFTWARE

Changing the tire grip global and local

The grip menu allows the user to alter the grip of the track, globally as well as locally.

The specified grip factor is multiplier for the standard tire characteristics. We personally do not favour the use of local grip factors unless it is clear that in that area there is a different surface.

Helpful for selecting an area

Screenshot of the LapSim GUI, showing a listbox with all the grip areas of the driving line

In the listbox, an overview of all the grip areas with starting and end point is given as well as the amount of grip. The listbox can be used to select an area in order to edit it.

In addition there is the option to change the overall grip of the track as can be seen in figure below.

Screenshot of the LapSim GUI, showing the grip graph, amount of grip as a function the track position

Grip graph

There is a grip graph, showing you the resulting grip line which is used in the simulation run.

The start and end of each area is slightly filtered in order to give smooth transitions.

Manually change the parameters of an area

Screenshot of the LapSim GUI, showing a selected corner of the zoomed in track

Once an area is selected, the edit boxes show the details of the area, which can be adjusted.

Furthermore the button above the edit boxes enables you to delete this area.

Drag and drop in the figure by the left mouse button

Screenshot of the LapSim GUI, showing part of the track with the starting point of a new grip area

In order to add a new area in the graph, just do a left mouse click on the starting point on the circuit graph.

This will be the starting point of the newly created area.

Screenshot of the LapSim GUI, showing the new area being created by pulling the mouse along the track

Subsequently move the mouse with the left button engaged, to create an area, with the endpoint one wants to have.

Screenshot of the LapSim GUI, where the mouse is released and the newly created grip area is shown

Releasing the button will update the list of grip areas with this new created the area.

In the edit boxes you see the details of the area you have created, which can be used to fine-tune this area and edit the right grip value.

Drag and drop towards start of the area

Screenshot of the LapSim GUI, showing the mouse being clicked in a grip area

In order to change the start point of an area in the graph, it is important to move towards or past the starting point.

So one clicks with the left mouse button in the area and keep the left mouse button engaged, moving in the direction of the starting point.

Screenshot of the LapSim GUI, showing the mouse being moved past the start point of the area

Subsequently, by moving the mouse, one creates the 'adjusted' area with the start point one wants to have.

In this example, we enlarge the total area.

Screenshot of the LapSim GUI, after the mouse has been released, showing the adjusted grip area

Releasing the button will create the adjusted area.

The edit boxes are immediately updated, so can use them to fine-tune, should you wish

Drag and drop towards the end of the area

Screenshot of the LapSim GUI, showing the mouse being clicked in a grip area

In a similar manner one changes the end point of an area in the graph.

To do so one should move towards or past the end point, after one clicks with the left mouse button in the area and keep the left mouse button engaged.

Screenshot of the LapSim GUI, showing the mouse being moved towards the end point of the area

Subsequently, by moving the mouse, one creates the 'new' area with the endpoint one wants to have.

In this example, we shorten the total area.

Screenshot of the LapSim GUI, after the mouse has been released, showing the adjusted grip area

Releasing the button will create the adjusted area.

The edit boxes are immediately updated, so you can use them to fine-tune.

Drag and drop past the next area

Screenshot of the LapSim GUI, showing the track with two grip areas, whereas the mouse is clicked in one of them

If you enlarge an area beyond or close to the end point of another area, they will be combined.

In the example we start in the last area.

Screenshot of the LapSim GUI, showing the mouse being moved from one area past the other area

Pull the mouse beyond the previous area....

Screenshot of the LapSim GUI, after the mouse has been released, showing that the two previous areas are combined

...and release it.

LapSim combines the two areas to one.