tTool Realtime Batch Tests

Realtime tTool Batch Tester V0.20 - Brabham BT44B Rears.ods


The ‘unmarked’ sheets (such as ‘2 RollingResistance’) are the “test” sheets, theoretically made from the same template, just with different entries pre-filled to provide you with the most relevant tests.

“Res” sheets are short for results. This is where you paste .csv data generated by tTool.

“Ana” sheets are short for analysis. These can be rather useful once you have provided the necessary data in the 'Res' sheets.

Where applicable, read the comments!! :)

Not everything strictly adheres to the “Key”, some cell references to other pages are left as ‘editable entries’, because replacing them is perfectly legitimate. So it might be wise to double check that the cell doesn’t contain a “=” cell reference.

For coloured (“Linked”) keys, if you simply change the left most value, the others will be updated automatically.

“Linked” cells are fine to edit individually too. It’s just that for each sheet, and their intended purpose, that we automatically copy the cell values to the relevant cells. If you change the test slightly, you may want to alter values individually, but normally there is little need.

Quick Guide / Procedure:

1. A) While on the General sheet, fill out information on the top left. Then select “Export 0”. Alternatively, to do it manually, copy by clicking the button that says “Copy” (on ‘0 InitialTests’ Sheet). Paste this into your custom_realtime.ini file, in your pTool\ folder (create it if it doesn't exist).

    B) Next, open up tTool (launch rFactor 2 Dev Mode, along with the command line parameter +tTool). Load your .TGM file.

    C) Still in tTool, after loading your TGM file, change the custom realtime batch test filename to match your batch test.ini name. Then click the “Run Custom Tests (Realtime)” button. After a few seconds, tTool will have completed the tests.

    D) Open the .CSV file created by tTool. It will have created a folder with the TGM filename followed by a time stamp (it will look something like FISI2012_2016_02_28_11_56_51).

    E) Once opened, copy & paste the entire .CSV contents into “0 Res” (short for results).

2. A) Once you have done this, you may perform other tests with better accuracy. Go to the ‘1 Deflection’ sheet, export those batch tests, as before.

    B) In tTool, correct the batch test name by changing the last number to correspond with the sheets name (e.g. custom_realtimeBT44R-1.ini). Again. run some quick vertical deflection tests by clicking “Run Custom Tests (Realtime)”. Doing so allows us to determine some basic vertical stiffness information which may come in handy.

    C) Copy the relevant lines from the “CustomRealtimeTable.csv” file, and paste into the “2 Res” sheet.

    D) Analyse the results in 2 Ana, if you need to.

3. A) Proceed to “2 RollingResistance”, which should probably be adjusted prior to running other tests, as changes may have a slight influence on the tyre.

    B) Tweak and repeat these tests to adjust your tyre until the rolling resistance matches your data (or at least looks plausible for the type of tyre). “Hysteresis” adds more to low speed resistance. The latest build (1110) localised patch accelerations allows us to increase hysteretic damping, and reduce vertical damping (which is generally considered more accurate).

4. A) “3 Sweep”, this is a sweep test designed to measure the grip at incremental slip angles.

    B) A .tbc style lookup table is provided here, in cell AE2, if you would like to correlate the TBC model to be somewhat similar to the TGM. Of course, proper correlation is more complex, as changing test conditions slightly will change results significantly. Although not important for the AI, temperature and pressure can also effect the TBC physics.

5. “4 LateralPeaks” is very similar to the prior. Except it does not have the range of slip angles available in the full sweep test. However, it is useful in analysing load sensitivity or peak slip angle changes as it allows multiple tests under differing conditions.

6. “5 Longitudinal” is similar to sweep test, however, for longitudinal slip. To correctly offset the tyre slip ratio you need to run a short test in ‘5 PreTest’.

7. “7 CombinedCurves” for different combinations of lat & long slip.