Influence of freeplay and friction in steering system on double lane change manoeuvre - modelling and simulation studies

• Autorzy: Więckowski D. , Żardecki D.
• Języki publikacji: EN

Abstrakty

EN

Modelling and simulation investigations of a car non-linear dynamics with regard to freeplay (backlash in steering gear) and friction (kinetic and static friction in king-pins) is always a challenge for researchers. Fortunately, by special luz(...) and tar(...) projections and their mathematical apparatus the elaborated models and simulation procedures of stick-slip phenomena in a steering system are managed in efficient forms (without any entangle constraints) even for optimization and sensitivity studies. Exactly, the presented studies deal with problems of sensitivity of optimized maneuvers for vehicle models considering freeplay / friction effects. Double lane change maneuvers (overtaking and avoiding) are discussed. A criterion function refers to several evaluations (precision of maneuver, calm steering, feeling of comfortable travel). The optimization of steering wheel angle signal is done on a reference model with "nominal" freeplay and friction parameters. Such input signal is applied to a "real" vehicle having "real" freeplay and friction parameters. The differences of output signals as well as differences between criterion function values are a subject of sensitivity analysis. The sensitivity of reference models on a variation of freeplay and friction parameters appears as important from theoretical as well as practical points of view. The paper takes up the problems of sensitivity analysis of steering system model applied for synthesis steering algorithms for a double lane change maneuver.

Słowa kluczowe

EN

vehicle dynamics; steering system; freeplay; friction; mathematical models; luz(...) and tar(...) projections; simulation studies; sensitivity analysis; optimization of maneuver; double lane change maneuver

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 2
• Strony: 483--492
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Więckowski D.

autor

Żardecki D.

• Automotive Industry Institute (PIMOT) Jagiellońska Street 55, 03-301Warszawa, Poland phone: [phone], fax: [phone],

Bibliografia

• [1] Lozia, Z, Więckowski D., Żardecki D., Wpływ luzu i tarcia w układzie kierowniczym na kierowalność samochodu, Zeszyty Naukowe Politechniki Świętokrzyskiej. Mechanika, Nr 8, pp. 89-120 (in Polish), 2008.
• [2] Stańczyk, T., Więckowski D., Ocena poprawności wykonania typowych manewrów w ruchu samochodu, Zeszyty Naukowe Politechniki Świętokrzyskiej, Mechanika 84, pp. 293-304 (in Polish), 2006.
• [3] Więckowski, D., Optymalizacja wymuszenia działającego na kierownicę ze względu na kryterium poprawności wykonywania typowych manewrów w ruchu samochodu, Rozprawa doktorska, Politechnika Świętokrzyska, Kielce 2006 (Dissertation in Polish).
• [4] Więckowski, D., Żardecki, D., Simulation Studies of Optimized Manoeuvres for Steering System Freeplay and Friction Sensitivity Analysis, Proc. of IAVSD’09, Sztokholm 2009.
• [5] Więckowski, D., Żardecki, D., Badania wrażliwości optymalizowanego manewru wyprzedzania z uwagi na luz i tarcie w układzie kierowniczym, Zeszyty Naukowe Instytutu Pojazdów (Politechnika Warszawska, Wydział SIMR), Nr 1(77), pp. 359-369 (in Polish), 2010.
• [6] Żardecki, D., Structural Sensitivity Analysis of Non-Smooth Systems, Proceedings of 9th DSTA Conference on Dynamical Systems - Theory and Applications, Vol. 1, pp. 489-496, Łódź 2007.
• [7] Żardecki, D., Piecewise Linear luz(...) and tar(...) Projections. Part 1 – Theoretical Background. Part 2 – Application in Modelling of Dynamic Systems with Freeplay and Friction, Journal of Theoretical and Applied Mechanics, Vol. 44, No. 1, pp. 163-202, 2006.
• [8] Żardecki, D., Modelowanie luzu i tarcia oparte na odwzorowaniach luz(…) i tar(…) – podstawy teoretyczne i zastosowanie w symulacji drgań nieliniowych w układach kierowniczych samochodów, (Rozprawa habilitacyjna), Wyd. WAT, Warszawa 2007 (habilitation monograph in Polish).
• [9] Żardecki, D., Sensitivity Analysis of Steering System Model, Journal of KONES Powertrain and Transport, Vol. 16, No. 1, pp. 571-581, 2009.