cosin software 2019-2 release notes

cosin

1. new function in arithmetic expressions: splic() = spline with constant end values

cosin GUI

1. reorganization of cosin logo and ‚about‘ window display in cosin GUI
2. compatibility date specification moved from cosin launchpad header to cosimulation tab

FTire

1. fix: potential sign error in slip angle computation at very low speed
2. bottom/front/side view with orthogonal projection made selectable by single click in FTire animation window
3. standard view selection homogenized for all animation environments
4. new FTire parameter: actual tire section width
5. rim data file can be replaced several times now, even inside simulation time loop
6. error message if rim data file is loaded before tire data file
7. animation window improved: footprint location and color palette made selectable on the fly
8. condition check to repeat pre-processing refined
9. statics and steady-state animation made selectable in animation settings GUI
10. made sure pure changes in animation settings do not trigger pre-processing update
11. animation road grid sizes in all example files unified
12. manufacturer, brand, and ETRTO string added to animation window
13. made sure calls to FTire parameter input with old compatibility date do not permanently alter compatibility date saved in file
14. removed filtering of ground pressure output values if tread pattern is specified; this will avoid non-zero ground pressure is shown in grooves and other tread pattern void
15. wheel envelope visualization improved: maximum number of CAD nodes increased
16. accuracy of gpo output data improved when using a tread pattern
17. new data item ‚residual_radial_stiff_perc‘ introduced, to more accurately simulate run flat scenarios
18. avoiding incomplete plot file generation in case of premature simulation abort
19. tir data file name in P array made ‘not relevant’ for necessity of preprocessing
20. deferred loading of flex-rim data enabled

FTire/hil

1. new real-time standalone version of FTire on Concurrent platforms
2. added real-time demo, running on Simulation Workbench for easy-to-use real-time evaluation tests

FTire/fit

1. new ground pressure distribution identification in FTire/fit implemented
2. full support of gray scale footprints in static and steady-state analysis
3. wheel controller in footprint identification and evaluation made more robust
4. initial wheel load controller gain in footprint identification and evaluation made accessible via settings
5. speed mode treatment in FTire/fit fixed
6. new button ’show history of parameter changes‘ in FTire/fit history pane

FTire/sim

1. added output file specification to some important example sim files
2. fast selection of flat road added to GUI
3. readability improvements in GUI
4. simplified selection and editing of output settings

FTire/link

1. consolidation: oldest supported Matlab/Simulink version changed to R2015a
2. new moving road signals introduced in Simulink block-set
3. Simulink models brushed up:
   • block name extensions changed from mdl to slx
   • new icons
   • new connectors for single and multiple tire blocks to provide and make controllable important operating conditions: pressure, tread depth, ambient temperature
   • new block-set layout

cosin/road

1. fix: thread-safe loading of extremely large poly-line roads
2. updated cosin/io road types ‚plank‘ and ‚cleat‘ to reflect correct ‚bevel_edge_length‘ and ‚edge_rounded‘ input variable

cosin/mbs

1. new parameter ’side‘ in cosin/mbs TI element

cosin/tools

1. display of file names added to cosin/ip
2. several cosin/ip usability improvements
3. improved PSD computation in cosin/ip

cosin/tools for tires

1. generation of FTire/fit-compatible footprints from animation window in statics and steady-state analysis
2. made sure changes in output settings are immediately effective if autosave is active
3. new functionality and GUI ‚tire database analysis‘ implemented
4. user tire database selection added to GUI
5. parameter search function and parameter classes added to database inspection GUI
6. handling data added to tire database contents
7. new ‚data file similarity‘ measure introduced in tire database GUI, based on RMS distance of tire key data differences
8. arithmetic expressions made available in main stiffness window
9. new shortcut function: ‘show tire in animation window’ added to GUI
10. tread depth added to FTire/estimate GUI
11. made sure message window is always shown in cti/replay

cosin/tools for roads

1. fix: road encryption radio buttons made work again

cosin/tools for Matlab

1. two new Matlab post-processors ‘air1.m’ and ‘air2.m’ for visualizing air cavity model result data added
2. gpo file analysis scripts improved

CTI (cosin tire interface)

1. consolidation: support for libctimsg.so -> ctiMessage() handling discontinued
2. new CTI function ctiGetOuputSignalLabel() to get output signal full label from number as obtained by ctiFindOutputSignalNumber()
3. added new demo ctiRimDataDemo.c to show how to use the ctiRimDataDemo() API function
4. new simulation control signals in cti files:
   • rtf (current real-time factor) (in)
   • recording (out)
   • suppress_output (out)
5. replay recording made thread-safe under all circumstances
6. made sure all changes in road transformation appear in the record file, even if recording temporarily was switched off
7. save old output file backups with date and time in name, if overwriting is not allowed
8. selection of low-pass filter time constant for forces added to cti files
9. made sure log-file is backed up if file overwrite is deactivated
10. made sure inconsistent CTI input signals are recognized even in first simulation steps
11. loading of rim data file and rim model made consistent and better documented
12. message formatting in 3rd-party CTI applications in warning and error case improved

CRI (cosin road interface)

1. new CRI function criGetInstallationInfo() to get details of cosin installation

Documentation

1. completed CTI documentation of ctiLoadControlData()
2. documentation of road type ‚function‘ completed
3. added FTire/hil documentation for FTire real-time simulations
4. documentation of new CTI function added