cosin software 2017-4 release notes

cosin

1. prevent escape sequence output in 3rd-party messaging on Linux
2. output of command line options only at end of program, to be able to mark unused options

cosin GUI

1. quick visual check of animation settings added to GUI
2. fix: prevent tcl from crashing if FTire/fit or cosin/mbs window is closed after deleting project folder manually
3. placement of message window outside screen prevented
4. made sure all GUIs are completely visible when opened
5. fix: crash in tcl when checking selected editor
6. cosin/ip GUI improved, new functions: predefined plot sizes for fast selection
7. search item list added to cosin/ip GUI
8. log-file browser now allows expanding of single output blocks
9. cosin/ip GUI redesigned: simplified loading/unloading of plot files
10. cosin/ip window placement improved
11. less flicker when changing plot window size in cosin/ip

FTire

1. new compatibility date 2017-07-31: automatically disregarding hysteresis during linearization
2. multiple & different tread pattern bitmap files make work simultaneously
3. cleat contact phase added as new column in cfo output file
4. controlled temperature without activated thermo model implemented
5. consistent distinction between R, D, and B tires
6. new realistic tread pattern example images added to package
7. users are asked now if additional data files (tread pattern, rim data, rim CAD file), when specified, are to be copied into FTire data file directory
8. new function to mark first cleat contact in a tread pattern image
9. default numeric settings for pre-processing made more robust
10. fix: potential crash during loaded tire linearization
11. FTire example data file consolidation; new example files for tire sizes:
    • (1) 195/65 R 15 91T
    • (2) 205/55 R 16 91V
    • (3) 225/45 R 17 91V
    • (4) 235/45 R 17 94W
    • (5) 245/40 R 18 97Y
    • (6) 295/35 R 20 105Y
12. made sure version of CTI and FTire state array input from file is compatible with actually used cosin version
13. fix: smooth simulation resume using state save/retrieve function
14. head line with signal numbers added to mtl files
15. more precise and simplified surface node position output
16. fix: linearization in case of activated flexrim model
17. angle input in linearized LTI system made selectable: Bryant angles (default) or rotation about inertial x/y/z axis

FETire

1. operating conditions and pressure output in FETire made work
2. FETire cross section output added to cosin/tools

FTire animation

1. animation suppressing made selectable even in case of ogl request
2. animation window control made work even if no .cosin-file is available
3. quick visual check of animation settings added to GUI
4. lighting can be switched off now even if settings source is a tir-file
5. scopes are shown in GUI even if settings source is a tir-file
6. new deformed and colored rim CAD model
7. extremely deformed side-walls shown more realistically
8. simulation time made better readable
9. placement of objects in animation window improved
10. auto-scaled time interval in scopes fixed
11. color palette selection in FTire animation introduced
12. new color palette ‚reduced thermo‘, to avoid color white (= background color) in footprint
13. homogenization of color legend display in all applications

FTire/fit

1. made sure single FTire deflection frame is added to report in case of FE tests
2. added new selection ‚open FTire/fit project in‘ to launchpad menu
3. dynamic stiffening identification improved
4. reference plots made work even in percental comparisons
5. new button ‚reload simulation scripts‘
6. report formatting improved
7. sim-scripts brushed up
8. new simscripts made 100% downward compatible, not requiring simscript update
9. tir-file prevented from forced preprocessing for cleat test validation
10. better on-cleat-phase visualization in report
11. FTire/fit by default opens last project now
12. initial project selection fixed
13. fix: wrong image sorting in report generation on Linux
14. description of cleat geometry added to cleat test captions in report
15. captions output and step forward/backward buttons added to validation image browser
16. stepping through validation images now works even if a group is only partially validated
17. measurement type recognition revised
18. more detailed ‚what if‘ info display in measurement list
19. user may propose measurement type now (right click in measurement list or check-in button)
20. simplification and unification of check-in procedure
21. made sure CTORS test case with high steering angle rate is recognised as statics
22. more friction cases recognized
23. numeric settings optimization improved
24. new analysis button in tread pattern image specification: show longitudinal and lateral net-to-gross distribution
25. footprint boundary approximation fixed for models with tread pattern

FTire/link

1. help call in all Simulink models fixed
2. new Matlab scripts and functions for mtl- and gpo-file postprocessing
3. mp4 generation added to gpo postprocessor

FTire/sim

1. all simscripts from FTire/fingerprint made work within FTire/sim GUI without any modification
2. time-dependent road friction modification factor introduced in FTire/sim, controllable via new sources & sinks signal ‚road_friction_mod_factor‘
3. fix: solid tire simulation made run again in FTire/sim and FTire/fingerprint
4. new checkbuttons ‚tag‘ introduced in FTire/sim GUI, to fully automatically tag output file names by actual parameter values
5. initial wheel rotation angle introduced
6. optional modified tread pattern file added

cosin/tools

1. slip angle made controllable in interactive analysis
2. wheel load control in FTire/fingerprint made work even for ‚exotic‘ tires
3. new ’shaded curves‘ with general RGBA color in cosin/ip
4. cosin/ip cursor (if active) vanishes outside diagram bounds
5. more accurate placement of left/right-aligned text in cosin/ip postscript and png output
6. friction modification added to steady-state and interactive analysis
7. analysis function for rim data files added to cosin/tools
8. flexrim data file generation completed with approximations for simplified approach
9. output of Green’s functions added to flexrim analysis
10. flexrim Matlab scripts added to installation package
11. fix: carcass/tread spline editing function made work
12. rim rotation angle added to linearization menu as new input value
13. new two-phase self-tuning wheel load controller introduced in steady-state computation

cosin/road

1. 2D road type time-variant function made work even if friction factor is set
2. fix: cosin_3d_step.rdf road made work
3. fix: cosin_3d_dummy_rgr.rdf road made work
4. RGR output selection made work in old STI interface called by Adams
5. made sure full 3d road evaluation works for all tire instances if using the same triangulated road data file
6. fix: huge rgr data file loading with more than 500000 center-line points
7. new optional rgr road data file licensing
8. rgr file generation for simple obstacles made more user-friendly

CTI

1. activation of rgu-file output adapted to new Adams logics (using function cfinit rather than environment variables)
2. added demo program for ctiLinearize
3. homogenized cti demo programs
4. restart demo program slightly extended
5. fix: bitwise exact CTI restart in case of step-size-control and potential going backward in time
6. fix: individual record files might not have been cleanly closed with repeated call of ctiInit / ctiClose
7. enhanced output modes for ctiWriteAdditionalOutput
8. improved error handling for ctiReadStates and ctiWriteStates

Documentation

1. cti documentation revised and completed with all new functions