This version reinstates the pkp_smoothing_range and pkp_smoothing_resolution parameters whose functionality had been lost.

pkp_smoothing_range specifies the crank angle range for a rolling average used to generate the PRAVG channel. This is used to calculate the knocking pressure.
pkp_smoothing_resolution specifies the crank angle resolution to use in the rolling average.

Typical values are:

pkp_smoothing_range = 2.0 - this performs a rolling average of +/- 2.0 degrees
pkp_smoothing_resolution = 0.2 - this performs the rolling average at a resolution of 0.2 degrees. Raw data is interpolated if necessary to achieve this resolution.

Enjoy!

UPDATE: pthreadGC2.dll file included in catool-0.9.7.1-win32.zip file, hence MD5 change. (17.07.2010)

Downloads:

• Source code: To follow
• Windows 32-bit binary: catool-0.9.7.1-win32.zip MD5: 00eece44c50aec58098a0906152d6a4b
• Documentation: catool_User_Guide_v1.pdf
• Example: rover_v8_csv.ccf - Load CSV, Analyse, Save as IFile
• Example: rover_v8_avl.ccf - Load IFile, Analyse, Save as CSV, IFile, MATLAB
• Example: avl_matlab.ccf - Load IFile, Save as MATLAB

Brown, B. R., "Combustion Data Acquisition and Analysis," M.Eng. Automotive Engineering Thesis, Loughborough University, 2001. [1.21MB]

Converting AVL IFile data to MATLAB
catool can be used to convert raw combustion data in AVL IFile format for later analysis in The MathWorks' MATLAB.

The following configuration file will load an AVL IFile (avl_ifile.001) and output a MATLAB file (avl_ifile.mat).

catool can perform the relative to absolute pressure correction using the polytropic indices and crank angle range specified in the AVL IFile. To do this uncomment the three lines (channel-offset, analyse and run-analysis).

input-file-type AVL_IFILE

input-file avl_ifile.001
load-channels all

load-file

The website is slowly making its way back online.

If you are looking to download catool, the open source combustion analysis software you can do so here.

Support is available from support@xarin.com