cosin software 2021-2 release notes

cosin

1. new save location of temporary files implemented, based on process id of calling cosin application, reducing risk of interference between several application instances running in parallel
2. havsin function evaluation in arithmetic expressions fixed

cosin GUI

1. occasionally annoying command window resizing and moving suppressed in Windows
2. added ‚cancel‘ selection to file selection’s preferred location menu
3. ‚recently opened files of searched type‘ added to preferred locations menu in case of ‚define existing file for open‘
4. checks added to file selection GUI if or if not new files/folders can be generated
5. DOE slider display improved in all cosin application GUIs

FTire/core

1. fix: pre-processing of incompletely defined cross section spline data, did not work in certain rare cases
2. rim torsional stiffness activated in simplified flexible rim model
3. numerics in case of bottoming cases with extremely large contact forces made more robust
4. making sure geometry item ‚belt layer thickness‘, if given, is taken into account even with higher speed modes
5. writing data item ‚emulated version‘ instead of ‚compatibility date‘ to tire data files (does not affect validity of older data files)
6. geo file output improved (still downward compatible upon request in output selection menu)

FTire/fit

1. optional PI controller for drum velocity during cleat tests introduced
2. improved type-specific activation/deactivation of measurements in GUI

FTire/sim

1. default FTire/sim output file prefix changed to _last_run
2. new button in FTire/sim GUI to select search folder for sim script / tire / road / qc data files simultaneously
3. brush-up FTire/sim GUI

cosin/road

1. fix: potential round-off error-caused array bound violation in standard rgr evaluation
2. made sure rgr roads with center-line but without grid data undergo fastest possible evaluation in RT mode

cosin/tools

1. new feature ‚ysep‘ introduced in cosin/ip, to separate nearly equal curves for better visibility
2. made sure rec-file reader can handle certain faulty rec-files without crashing

cosin/tools for tires

1. buttons polish.. und discard.. moved to icon line
2. characteristics plot type ‚torsion‘ fixed
3. made sure all linked files are transferred to database folder when creating the database structure

cosin/tools for roads

1. improved crg -> rgr export:
   • check if crg file contains modifiers
   • new selection to save w/o modifiers applied, with modifiers applied, or both
   • rgr file name marked with postfix denoting if or if not modifiers had been applied
   • improved and more intuitive selection of center-line section bounds (if any) to be exported
   • made sure correct crg/rgr comparison is performed after rgr export
2. added new function which reformats any rgr-equivalent road data file(s) into a single binary rgr file
3. made sure center-line is included when writing rgr-file if input-file contained one
4. make sure rgr center-line banking is taken into account in CAD file generation
5. new rgr creation feature including center-line on basis of driven course as saved in a plot file implemented

cosin/tools for Matlab

1. Matlab scripts for cfo-file postprocessing added

CTI (cosin tire interface)

1. fix: plot output of local step size in case of step-size control in CTI
2. made FTire data files in cosin/io format accepted by Adams and vi-CarRealTime
3. cti file wrapper implemented, to enable usage of cti files rather than tir files in Adams, vi-CarRealTime, and Simpack

Documentation

1. new FTire/rim User Guide