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Fortunately, we can edit the lap markers and remove the ones we do not need. In the time trace, point with the mouse over the blue box that corresponds to the marker you want to remove. A box should appear displaying the marker name. Right click on the blue box and select the “delete marker” option.
Delete all the markers which are not needed. Once you are done, you will be left with the log file which has been split up into the all the laps run during that log session. The fastest lap will always be highlighted in green.
If you click on the “Lap 1, Lap 2,..etc” on the task bar, you’ll notice that the data trace will zoom into the data for just that lap – a very useful feature.
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Tip Box #9 The math feature on AEMData is a great way to input custom equations for sensor readouts and to look at rates of change for different parameters. |
Install Tip 6 discussed the option of calibrating a sensor in the AQ1 Data Acquisition software or just logging raw voltages and applying a calibration curve in AEMData. This tip goes over how you can enter in a custom calibration curve in the AEMData. To recall, we decided to log the raw voltage output of our suspension potentiometers rather than applying a calibration curve in the AQ1 Data Acquisition System software. Our reasoning was that we could use the voltage output from the suspension potentiometers, and apply different equations to get different data traces. Equation 3.1.A is an equation we came up with that relates the voltage output of our suspension potentiometers to suspension compression. Equation 3.1.B is an equation that relates voltage output to wheel rate. We can then use these two equations in Equation 3.1.C to estimate total load on a tire. We can input these into the AEMData program and get three different data channels from one logged source (note these equations are unique to the setup you run and will give meaningless data if copied on a different setup).
LF Shock Compression = 4.367 – -0.2998*(voltage output)^2 – 1.1036*(voltage output) + 5.6059
LF Wheel Rate = – 6.7566*(voltage output)^2 + 35.76*(voltage output) + 386.15
LF Tire Load = LF Wheel Rate * LF Shock Compression
To enter Equation 3.1.A into AEMData we did the following steps.
1. Starting from your home screen or a template that you have already started click “Data”, then click “Edit Maths”.
