Simulation ERROR (loadCTITireData) while running older full vehicle model in new version.

Question

Hello everyone,

I am trying to run older model (2010) into newer version of Adams (2017.1) and getting following error message related to ftire (cosin 2017.1).

I have tried running with PAC tire and it works fine. So, looking for your help on what could possibly be wrong here. Adams/Cosin version ? or something else.

---- START: ERROR ----

loadCTITireData: Could read FTire tire property file front_ftire.tir for tire: 2

---- END: ERROR ----

---- START: ERROR ----

Adams Solver (C++) run terminating due to STOP requested by user.

---- END: ERROR ----

Termination status=-995

Terminating Adams Car usersubs...

Micha · Accepted Answer

you can make a newer cosin version behave like an older one (neglecting all fixes and improvements added later):

open your tir-file in cosin (newest version available in your site: 2023-1?), 
 then click 'emulated cosin version', select the 2017-1 version and 
 save the tir-file.

Then, run your Adams model with cosin 2023-1 and you will the get same results as with cosin 2017-1.

VERY IMPORTANT: do *not* try to edit the tir-file in an ascii editor and do the changes 'manually'. This might not work well.

In order to make sure cosin 2017-1 has not had any issues with your tir-file, try to pre-process it in the cosin menu (button 'pp' in upper right corner), and see if it is successful. Once again: 2017-1 ist seven years old and the tir-file might not work well in this outdated version. But you will see this as result of the preprocessing run. If PP is successful, it is likely that the FTire model also runs fine together with your Adams model.