Research of the car braking process

• Autorzy: Mitunevicius V. , Nagurnas S. , Pikunas A.
• Języki publikacji: EN

Abstrakty

EN

This paper describes analysis of a car braking process - the peculiarities of car wheel-to-road adhesion, the influence of distribution of braking forces on car stability between front and rear axles. Structural designs of braking systems are analyzed with respect to their meeting the EU standards. Experimental measurements of braking force coefficients for some models of cars are presented with the analysis how these coefficients meet the EU standards. Two kinds of stability (trajectory and course)in the paper has been analyzed. The first one characterizes the car ability of copying a presettled curvilinear trajectory of motion and the second characterizes the ability to retain the straight-line motion. Diagrams of braking process dependence between braking forces of front and rear axles are presented. Breaking diagrams for several cars are presented. Average braking force coefficient was expressed by the dependence upon the deceleration coefficient for the front axle and the rear axle.

Słowa kluczowe

EN

transport; vehicles; safety; braking system; braking force coefficients

• 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: 2006
• Tom: Vol. 13, No. 1
• Strony: 37--45
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Mitunevicius V.

autor

Nagurnas S.

autor

Pikunas A.

• Transport Engineering Faculty, Vilnius Gediminas Technical University Basanaviciaus 28, Vilnius, LT-10223 Lithuania,

Bibliografia

• [1] Council Directive 71/320/EEC on the approximation of the laws of the Member States relating to the braking devices of certain categories of motor vehicles and their trailers, Brussel, 1998.
• [2] Ilarionov, V. A., Morin, M. M., Sergeyev, N. M., Theory and design of automobiles (Teorija i konstrukcija avtomobilja). Mashinostroyeniye. Moscow, 1985. 368 p (in Russian).
• [3] Mitschke, M., Dynamics of motorvechicles (Dynamik der Kraftfahrzeuge). Band A.: Drive and Braking (Antrieb und Bremsung). Springer-Verlag, 1982. 182 s. (in German).
• [4] Mitunevičius, V., Foundations of automobile dynamics: concepts, determinations and first principles of application. Textbook (Automobilių dinamikos pagrindai: sąvokos, apibrėžimai ir bendrieji taikymo principai. Mokomoji knyga). Technika. Vilnius, 1999. 76 p. (in Lithuania).
• [5] Regulation No. 13. Uniform provisions concerning the approval of vehicles of categories M, N, O with regard to braking. Geneva, 1995.