Sometimes, you may wish the maximum of the two speeds to be the reference speed. The reason for this is to avoid errors in data caused by lock ups under braking, and shock speeds over kerbs

This reference speed is important for drawing track maps, and comparing data in the Plot vs. Distance window.

Please refer to the datasheet called Math Channels to see how to create the maximum speed.

If you have ticked the “Use it as speed reference (if inserted)” check box when creating the Max_Speed math channel you may get a flat line of data when you view the Plot vs. Distance, and all values in the measure window will be nonsense

DO NOT tick this box

To make the maximum speed your reference speed, you have to manually select it. From the toolbar click

Modify -> Reference Speed

In the test you are interested in, double click on the name of the channel that you want as your reference speed

This name should appear in the box below the file name

Click on the OK button