data) {
+ return Math.sqrt(variance(data));
+ }
+
}
diff --git a/src/com/vgi/mafscaling/closed_loop.properties b/src/com/vgi/mafscaling/closed_loop.properties
index 180ce57..ce0cd54 100644
--- a/src/com/vgi/mafscaling/closed_loop.properties
+++ b/src/com/vgi/mafscaling/closed_loop.properties
@@ -9,6 +9,7 @@ The usage guide is based on wrxsti-l's post. Big thanks to all who have been act
The Total Correction % is then calculated for each cell as average of mean and mode of Correction Error values.
\
The correction will only be applied to cells where count of corrections is more than 30.
\
The corrected g/sec is calculated from the Total Correction % and the current g/sec as current_gsec * ((tot_corr% / 100) + 1).
\
+
Also, please note that collected data and correction applied may be greater than the full MAF scaling voltage and thus several of the first table cell would be uncorrected. In this case the first calculated Total Correction % value is applied to all cells prior to it except the first cell.\
\
Usage:
\
You won't nail the calibration in one shot, so rinse and repeat until you're happy with the scaling. Also, it is VERY important that you collect data at a constant temperature. If you collect data at 30F one day and then 60F next week, it will totally screw up the process.
\
@@ -33,13 +34,13 @@ The usage guide is based on wrxsti-l's post. Big thanks to all who have been act
Open your tune in RomRaider.\
Expand "Fueling - Primary Open Loop" tables group and copy "Primary Open Loop Fueling" table by clicking "Edit"->"Copy Table" into the first cell of "Primary Open Loop Fueling" table on the tool.\
Click "Validate" button to make sure all is fine (validation is done on setting the table as default and saving it or on submitting the table so it's not required).\
- Most likely the Primary Open Loop Fueling table will stay the same, so for autoloading next time you can click on "Set Default" and save this table in a new file. If you do have another tune with a different Primary Open Loop Fueling table, you can click on "Clear" to clear out table, then paste data from second Primary Open Loop Fueling table, click on "Set Default" and save this table in a new file. To switch between different Primary Open Loop Fueling tables saved in files click on "Clear" to clear table, then click on "Load" to load data from file, then click on "Set Default" so that next time it will be loaded automatically.\
+ Most likely the Primary Open Loop Fueling table will stay the same, so for auto-loading next time you can click on "Set Default" and save this table in a new file. If you do have another tune with a different Primary Open Loop Fueling table, you can click on "Clear" to clear out table, then paste data from second Primary Open Loop Fueling table, click on "Set Default" and save this table in a new file. To switch between different Primary Open Loop Fueling tables saved in files click on "Clear" to clear table, then click on "Load" to load data from file, then click on "Set Default" so that next time it will be loaded automatically.\
\
Now you have three ways to proceed:
\
\
- If you have used external tools (eg some spreadsheet) and have filtered Closed Loop data you can simply copy/paste that data into corresponding columns' first cell.
\
- If you have saved data from previous run and would like to see the graphs or modify some data manually you can load that run using "Load" button.
\
- - If you just ecu log file(s) then click on "Load Log" button, select your log file, select asked columns from log file AND set desired filters values when prompted. Please pay attention to filters on some columns to filter out noisy data. Once the log file is processed you should see closed loop data populated in the table. Repeat this procedure to load more log files - the data will be appended to the table.
\
+ - If you just log file(s) then click on "Load Log" button, select your log file, select asked columns from log file AND set desired filters values when prompted. Please pay attention to filters on some columns to filter out noisy data. Once the log file is processed you should see closed loop data populated in the table. Repeat this procedure to load more log files - the data will be appended to the table.
\
\
\
At this point you can save all the input data for future reference or re-scaling by clicking on "Save" button at the top bar.\
@@ -67,17 +68,20 @@ The usage guide is based on wrxsti-l's post. Big thanks to all who have been act
\
- quick - straight values copy
\
\
- - Simply copy the newly generated "Airflow (g/s)" values from results table into the "MAF Sensor Scaling" table in your tuning tool (eg RommRaider).
\
+ - Simply copy the newly generated "Airflow (g/s)" values from results table into the "MAF Sensor Scaling" table in your tuning tool (eg RomRaider).
\
\
\
- - slow - apply smoothing or manual changes. To apply smoothing to the Corrected Maf Scaling curve or to make manual changes (only for people who really know what they are doing!!!) click on "Smoothing" checkbox. The chart view will display smoothed MAF curve together with current MAF curve slope and the smoothed MAF curve slope. At the bottom of the screen there is resulting MAF scaling table with controls that allow making changes to the table (and thus the MAF curve). Row 1 of the result table corresponds to "MAF Sensor (volts)" and row 2 of the "Smoothing" tab corresponds to "Airflow (g/s)".
\
+ - slow (optional) - apply smoothing or manual changes. To apply smoothing to the Corrected Maf Scaling curve or to make manual changes (only for people who really know what they are doing!!!) click on "Smoothing" checkbox. The chart view will display Smoothed Maf curve(blue) together with Current MAF curve slope line(red) and the Smoothed MAF curve slope line(green). At the bottom of the screen there is resulting MAF scaling table with controls that allow making changes to the table (and thus the MAF curve). Row 1 of the result table corresponds to "MAF Sensor (volts)" and row 2 of the "Smoothing" tab corresponds to "Airflow (g/s)".\
+
Slope line is a line of MAF Curve slope values. Slope value is a number which is used to indicate the steepness of a curve at a particular point. Slope value for MAF Curve is calculated between each 2 points of the curve as: \
+
Code:
slope = (y2 - y1) / (x2 - x1)
\
- All smoothing changes are immediate and can be seen on the smoothing graph.
\
- If you have overdone smoothing, simply click on "Reset" button to set the smoothed curve back to corrected curve.
\
- You can apply smoothing by selecting the cells in MAF scaling table and the smoothing degree and then clicking "Apply" button. Smoothing degree is simply a moving window size where 3 - uses 1 cell to left and right, 5 - uses 2 cells to left and right, and 7 - uses 3 cells to left and right.
\
- Please note that due to how smoothing algorithm works one, two, or three (depending on smoothing degree you chose) the first cells and last cell will not get modified. You can raise/lower those manually if needed by the same value the cell after or cell before was modified.
\
- BE CAREFULL not to smooth too much or you will end up making your MAF scaling worse. General suggestion is to apply either degree "3" or "5" once.
\
- - In addition, you can manually smoothen values by either dragging the smoothed curve's point or by applying +/-0.10 to the highlighted cells using buttons on the left from the result table. Keep in mind that selection all cells will raise or lower the whole curve. Thus you can raise certain parts of the curve by selecting appropriate cells.
\
+ - In addition, you can manually smooth values by either dragging the smoothed curve slope line's point or by applying custom +/- value to the highlighted cells using buttons on the left from the result table. Keep in mind that selection of all cells will raise or lower the whole curve. Thus you can raise certain parts of the curve by selecting appropriate cells.
\
+ - Finally, there is a compare screen. You copy original MAF scaling and the new MAF scaling and see change % difference. You can also manually alter change % difference if you feel it's needed and it will modify you new MAF scaling.
\
- Once you have smoothed the data to your liking, copy the data to your "MAF Sensor Scaling" table.
\
\
\
diff --git a/src/com/vgi/mafscaling/logstats.properties b/src/com/vgi/mafscaling/logstats.properties
new file mode 100644
index 0000000..52e1810
--- /dev/null
+++ b/src/com/vgi/mafscaling/logstats.properties
@@ -0,0 +1,21 @@
+usage=\
+\
+Credits:
\
+This tool is similar to BrzEdit Log Viewer.\
+Logic:
\
+The tool is supposed to help in analyzing the \
+log data and visualizing data distribution by applying different statistics methods and filters.\
+
Usage:
\
+\
+- Select log file to be analyzed.
\
+- Select X-Axis column from available columns in log file (eg Engine Load).
\
+- Select Y-Axis column from available columns in log file (eg Engine Speed).
\
+- Select Data column to be analyzed from available columns in log file (eg AFR).
\
+- Set X-Axis rounding - 'step' (eg 0.1 for Engine Load) or set the fixed scaling values for X-Axis column (please note that setting step takes priority over fixed scale values).
\
+- Set Y-Axis rounding - 'step' (eg 200 for Engine Speed) or set the fixed scaling values for Y-Axis column (please note that setting step takes priority over fixed scale values).
\
+- Select statistics method for analyzes (eg Mean).
\
+- Optionally set the filter comparison method and value to be compared against the Data column values (eg AFR < 16). Please note that for equality the Data column values are rounded \
+to the same number of decimal points as the filter input value.
\
+- Click on 'GO' button.
\
+
\
+\
diff --git a/src/com/vgi/mafscaling/open_loop.properties b/src/com/vgi/mafscaling/open_loop.properties
index 4c5c6c2..fad78ef 100644
--- a/src/com/vgi/mafscaling/open_loop.properties
+++ b/src/com/vgi/mafscaling/open_loop.properties
@@ -5,7 +5,7 @@ This tool is originally based on BadNoodle's spreadsheet, however changes were m
The usage guide is based on wrxsti-l's post. Big thanks to all who have been active in MAF scaling discussions and providing methodology - williaty, Rene2.5RS, and others.
A special 'thank you' to Td-d and Kodename47 for providing feedback.
\
Logic:
\
Logged MAF voltage and AFR % error are fitted to your current MAF scaling and new scaling is suggested.
\
-
The raw AFR is calculated as wideband AFR / ((100 - (LTFT + STFT)) / 100). The AFR % error is calculated as (raw AFR - interpolated AFR) / interpolated AFR * 100), where interpolated AFR is interpolated from "Primary Open Loop Fueling" table or (raw AFR - commanded AFR) / commanded AFR * 100) if you log "Commanded Afr" and don't set "Primary Open Loop Fueling" table in the program.
\
+
The raw AFR is calculated as wideband AFR / ((100 - (LTFT + STFT)) / 100). The AFR % error is calculated as (raw AFR - interpolated AFR) / interpolated AFR * 100), where interpolated AFR is interpolated from "Primary Open Loop Fueling" table or (raw AFR - commanded AFR) / commanded AFR * 100) if you log "Commanded Afr" and set the column in settings.
\
The 'advantage' is that since a lot of the data points are between cells, it distributes the % error between cells based on how far your data point is from the cell value.
\
Say your maf was scaled like:
\
\
@@ -20,6 +20,7 @@ The idea is by distribution the data between cells you get a smoother scaling.
Code:
MAFv: 0 1 2 3 4 5
g/s: 0 2.5 7.5 0 0 0
\
\
+Also, please note that collected data and correction applied may be less than the full MAF scaling voltage. In this case error correction is also applied to those table cells after the one corrected. The % error for those correction is calculated as average of 10 highest correction for the last cell. \
\
Usage:
\
You really need to nail CL portion of your MAF scaling first!
\
@@ -38,15 +39,15 @@ The idea is by distribution the data between cells you get a smoother scaling.Open your tune in RomRaider.\
Expand "Fueling - Primary Open Loop" tables group and copy "Primary Open Loop Fueling" table by clicking "Edit"->"Copy Table" into the first cell of "Primary Open Loop Fueling" table on the tool.\
Click "Validate" button to make sure all is fine (validation is done on setting the table as default and saving it or on submitting the table so it's not required).\
- Most likely the "Primary Open Loop Fueling" table will stay the same, so for autoloading next time you can click on "Set Default" and save this table in a new file. If you do have another tune with a different "Primary Open Loop Fueling" table, you can click on "Clear" to clear out table, then paste data from second "Primary Open Loop Fueling" table, click on "Set Default" and save this table in a new file. To switch between different Primary Open Loop Fueling tables saved in files click on "Clear" to clear table, then click on "Load" to load data from file, then click on "Set Default" so that next time it will be loaded automatically.\
+ Most likely the "Primary Open Loop Fueling" table will stay the same, so for auto-loading next time you can click on "Set Default" and save this table in a new file. If you do have another tune with a different "Primary Open Loop Fueling" table, you can click on "Clear" to clear out table, then paste data from second "Primary Open Loop Fueling" table, click on "Set Default" and save this table in a new file. To switch between different Primary Open Loop Fueling tables saved in files click on "Clear" to clear table, then click on "Load" to load data from file, then click on "Set Default" so that next time it will be loaded automatically.\
\
\
-\If you did log "Commanded Afr" then you must clear "Primary Open Loop Fueling" table by clicking "POL Fueling" button and making sure that the table is empty. If it is not empty and can click on "Clear" button, and then on "OK" button. If you are logging "Commanded Afr" then also make sure that you don't have a default file set. Otherwise the "Primary Open Loop Fueling" table and interpolated values are used by default.\
+\If you did log "Commanded Afr" then you must set the column name in settings screen while loading log file. If that column is empty then "Primary Open Loop Fueling" table is used and values are interpolated from table (much slower).\
Now you have three ways to proceed:
\
\
- If you have WOT "MAF voltage" and "AFR Error %" from Airboy's spreadsheet then simply copy/paste "MAF voltage" and "AFR Error %" data into corresponding columns' first cell. You can go up to 12 WOT pulls.
\
- If you have saved data from previous run and would like to see the graphs or modify some data manually you can load that run using "Load" button.
\
- - If you just have ecu log file(s) with WOT pulls, then click on "Load Log" button, select your log file with WOT runs, select asked columns from log file AND set desired filters values when prompted. Please pay attention to filters on some columns to filter out noisy data. Once the log file is processed you should see WOT pull tables on the tool populated with data. If you have more log files just repeat this procedure until all 12 tables are loaded.
\
+ - If you just have log file(s) with WOT pulls, then click on "Load Log" button, select your log file with WOT runs, select asked columns from log file AND set desired filters values when prompted. Please pay attention to filters on some columns to filter out noisy data. Once the log file is processed you should see WOT pull tables on the tool populated with data. If you have more log files just repeat this procedure until all 12 tables are loaded.
\
\
\
At this point you can save all the input data for future reference or re-scaling by clicking on "Save" button at the top bar.\
@@ -70,17 +71,20 @@ The idea is by distribution the data between cells you get a smoother scaling.\
quick - straight values copy
\
\
- - Simply copy the newly generated "Airflow (g/s)" values from results table into the "MAF Sensor Scaling" table in your tuning tool (eg RommRaider).
\
+ - Simply copy the newly generated "Airflow (g/s)" values from results table into the "MAF Sensor Scaling" table in your tuning tool (eg RomRaider).
\
\
\
- slow - apply smoothing or manual changes. To apply smoothing to the Corrected Maf Scaling curve or to make manual changes (only for people who really know what they are doing!!!) click on "Smoothing" checkbox. The chart view will display Smoothed Maf curve together with current MAF curve slope versus the smoothed MAF curve slope. At the bottom of the screen there is resulting MAF scaling table with controls that allow making changes to the table (and thus the MAF curve). Row 1 of the result table corresponds to "MAF Sensor (volts)" and row 2 of the "Smoothing" tab corresponds to "Airflow (g/s)".
\
+ slow (optional) - apply smoothing or manual changes. To apply smoothing to the Corrected Maf Scaling curve or to make manual changes (only for people who really know what they are doing!!!) click on "Smoothing" checkbox. The chart view will display Smoothed Maf curve(blue) together with Current MAF curve slope line(red) and the Smoothed MAF curve slope line(green). At the bottom of the screen there is resulting MAF scaling table with controls that allow making changes to the table (and thus the MAF curve). Row 1 of the result table corresponds to "MAF Sensor (volts)" and row 2 of the "Smoothing" tab corresponds to "Airflow (g/s)".
\
+ Slope line is a line of MAF Curve slope values. Slope value is a number which is used to indicate the steepness of a curve at a particular point. Slope value for MAF Curve is calculated between each 2 points of the curve as: \
+
Code:
slope = (y2 - y1) / (x2 - x1)
\
- All smoothing changes are immediate and can be seen on the smoothing graph.
\
- If you have overdone smoothing, simply click on "Reset" button to set the smoothed curve back to corrected curve.
\
- You can apply smoothing by selecting the cells in MAF scaling table and the smoothing degree and then clicking "Apply" button. Smoothing degree is simply a moving window size where 3 - uses 1 cell to left and right, 5 - uses 2 cells to left and right, and 7 - uses 3 cells to left and right.
\
- Please note that due to how smoothing algorithm works one, two, or three (depending on smoothing degree you chose) the first cells and last cell will not get modified. You can raise/lower those manually if needed by the same value the cell after or cell before was modified.
\
- BE CAREFULL not to smooth too much or you will end up making your MAF scaling worse. General suggestion is to apply either degree "3" or "5" once.
\
- - In addition, you can manually smoothen values by either dragging the smoothed curve's point or by applying +/-0.10 to the highlighted cells using buttons on the left from the result table. Keep in mind that selection all cells will raise or lower the whole curve. Thus you can raise certain parts of the curve by selecting appropriate cells.
\
+ - In addition, you can manually smooth values by either dragging the smoothed curve slope line's point or by applying custom +/- value to the highlighted cells using buttons on the left from the result table. Keep in mind that selection of all cells will raise or lower the whole curve. Thus you can raise certain parts of the curve by selecting appropriate cells.
\
+ - Finally, there is a compare screen. You copy original MAF scaling and the new MAF scaling and see change % difference. You can also manually alter change % difference if you feel it's needed and it will modify you new MAF scaling.
\
- Once you have smoothed the data to your liking, copy the data to your "MAF Sensor Scaling" table.
\
\
\
diff --git a/src/com/vgi/mafscaling/rescale.properties b/src/com/vgi/mafscaling/rescale.properties
new file mode 100644
index 0000000..5c4c362
--- /dev/null
+++ b/src/com/vgi/mafscaling/rescale.properties
@@ -0,0 +1,32 @@
+usage=\
+\
+Credits:
\
+This tool development has been driven by Kodename47.\
+Logic:
\
+The tool is about changing the MAF scale but keeping the curve the same. As with all mapping it's a resolution trade off. \
+The larger the scale, the less accurate that it is. If you're NA, the likelihood that the maximum voltage you are logging \
+at max RPM is little over 4.1/4.2v. Therefore the scale going all the way to 5v is a waste of potentially better resolution. \
+The same applies to several points at the start of the curve. You can only use the same amount of data points so by closing \
+the gaps, you're improving the accuracy due the way the ECU interpolates the cells. So by lowering maximum V value and removing \
+some unused V down low the new scale increases resolution for those cell where difference between points starts increasing and \
+therefore much more accurate.\
+
The logic is as follow:
\
+
First the point grater or equal to Min V is found and mid point is calculated between that point and the first point - reference point. \
+This is done in case your MAFv drops into the low range of the MAF scaling, the three points should provide a fair resolution.\
+
Mode of spacing between points is calculated and Max Unchanged value determined as the point after which spacing starts increasing from Mode. \
+The Max Unchanged value though can be reset from suggested by the user.\
+
Once the original MAF scale is pasted the new MAF voltage scale is calculated where first point is unchanged, second point is the mid point between first and third point, \
+third point is point greater or equal to Min V, then original values are copied until Max Unchanged point, and finally rescaled points calculated based on original \
+scaling % increase between sections of two points.\
+
After the new MAF Voltage values are calculated, for each MAF Voltage cell a new GS value is interpolated from the original curve for the new MafV using linear interpolation.\
+
Usage:
\
+\
+- Put the new maximum desired voltage into the text box.
\
+- Put the new minimum voltage into the text box.
\
+- Paste original MAF scale into the top table.
\
+- Modify Unchanged MaxV if desired or paste different MafV values into new MAF scaling or modify manually to adjust the curve if needed.
\
+- Copy the data to your "MAF Sensor Scaling" table.
\
+- Once you have copied your new MAF scaling values from the result table to your ROM, save a new ROM with the changes made.
\
+- Flash the modified ROM to your ECU.
\
+
\
+\