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Simulation of a sudden tire inflation pressure loss in a full vehicle context as a validation scenario for CAE based ESC development

 
: Bäcker, M.; Gallrein, A.; Calabrese, F.; Mansvelders, R.

:

Warrendale/Pa.: SAE International, 2016, 9 pp.
SAE Technical Paper, 2016-01-0447; ITWM-Berichte
Society of Automotive Engineers (SAE World Congress) <2016, Detroit/Mich.>
English
Report
Fraunhofer ITWM ()

Abstract
Sudden pressure loss can lead to vehicle instability and - without aid of systems such as e.g. Electronic Stability Control (ESC) - to an emergency situation, possibly resulting in an accident. But also with an ESC system such a situation is an unusual (unstandardized) application case, because the vehicle system (car+tires) properties change very rapidly during the sudden pressure loss, which leads to a very high dynamic response in the system and moreover to a very fuzzy and unclear description of the vehicle system. From this point of view, a proper validation and verification of an ESC system for such an application seems to have a high safety relevancy. The authors have set up a simulation case to simulate a sudden tire inflation pressure loss and its consequences to the car stability. Using this simulation setup enables a CAE engineer to pre-develop ESC systems and/or to validate and test these for a realistic and relevant use case.

: http://publica.fraunhofer.de/documents/N-428871.html