cosin software 2025-1 release notes

General cosin software aspects

1. fix: automatic frequency band computation in cosin/ip
2. improved and extended signal properties and event computation made available in arithmetic expressions
3. improved jpg->png export by adding an optional color coarsening parameter which helps to reduce noise

cosin graphical user interface (GUI)

1. placement of about window improved
2. made sure error messages are always correctly formatted in Windows GUIs
3. pdf reader selection updated with correct Adobe Reader name

FTire/core

1. fix: Tydex-W-axis forces and moments in case of (rarely used) full 3D evaluation of triangulated roads might have been computed in an inaccurate or even wrong coordinate system
2. fix: computation of reaction forces on moving contact bodies in standard speed mode
3. automatic and optional air mass adjustment introduced, to make sure initially heated tire starts with prescribed inflation pressure anyway
4. made length unit in geometry output selectable
5. made sure the basic volume gradient value is used in simplified volume/cross section computation rather than the internally approximated volume characteristic, provided it is given a non-zero value in the tire data file
6. new optional air cavity model parameter ‚time_const_cross_section_area‘ introducded, taking more precisely into account delayed effective flow-relevant cross section area changes
7. new plot signals (if air cavity is activated): probe segment cross section area and probe segment volume
8. new Tydex signal #77: simulation time

FTire/sim

1. new plot signals: road longitudinal and lateral inclination angle

FTire/fit

1. fix: potential issue in force computation during cleat test
2. made footprint image processing and boundary recognition in FTire/fit footprint check-in procedure more robust
3. made sure FTire/fit can check in all png-Files even if original format is not recognized by Tcl/Tk
4. nicer cover images

FTire/link

1. fix: ‚open tire file‘ button made work in FTire/link models

cosin/tools

1. fix: plot signal list display in cosimulation pane did not always work properly
2. fix: added info to start cosin/tools if no ini file is found and environmental variable COSIN_PREFIX is not set
3. activation of plot signal for value display improved in case of simultaneously multiple signals and multiple files
4. added ‚clean‘ button to remove temporary variables
5. adding Octave button (if available) to postprocessing pane
6. made F3 key (grab single image) work again in animation window

cosin/tools for roads

1. fix: potential crash if PSD of perfectly flat road is plotted
2. fix: read of triangulation data in TO-rdf format if comment line is missing made work
3. made rgr evaluation mode (std/fast) selectable in 1D evaluation check
4. made sure in road visualisation road height for negative local y value shows road as seen by right tires, positive y values as seen by left tires
5. plot zoom selection in automatic road visualiser improved

cosin/tools for tires

1. fix: refresh of property values in cosin/tools for tires, if higher speed mode ist set in tire data file
2. fix: made sure right pp button click (‚forced pre-processing‘) works as intended
3. brake caliper CAD model integration in animation settings GUI
4. made sure cornering stiffness plots in fingerprint are shown in case of comparison to a reference file
5. made sure operating conditions can be specified in imperial units if this is set in preferences
6. made sure passenger car rim is not used for trucks in cover sheet image
7. made sure optional rim CAD file is used in cover sheet image
8. made unit system selectable for operating conditions
9. new user-friendly display of general tire properties in cosin/tools for tires
10. new selection of LI load percentages in info output
11. new user-friendly display of general tire properties in cosin/tools for tires
12. info output in other than SI units added
13. readability of info data improved
14. specification of brake caliper CAD file in animation settings GUI completed
15. repeated display of tire properties with same operating conditions accelerated

CTI (cosin tire interface)

1. fix: specification of rgu-file creation in Adams if no cosin ini file exists
2. made sure user-defined extra Tydex signals are always available even if ctiGetTydexSignals and ctiComputeForces are called asynchronously

Documentation

1. cti docu proof-read and erroneous formatting fixed
2. new tire vibration modes image added tpo FTire/model docu
3. added recommendation for RT run time level selection to FTire/hilac chapter