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Tittel: Method of calculating the design parameters of the modulator anti-lock braking system with a high flow of working fluid
Authors: Vovk, Yuriy
Zhilevich, Mikhail
Ermilov, Sergey
Kapski, Denis
Vovk, Iryna
Lyashuk, Oleg
Вовк, Юрій Ярославович
Вовк, Ірина Петрівна
Ляшук, Олег Леонтійович
Affiliation: Department of Hydropneumatic Automatics and Hydropneumatic Drive, Belarusian National Technical University
Department of Transport Systems and Technologies, Belarusian National Technical University
Department of Automobiles, Ternopil Ivan Puluj National Technical University
Bibliographic description (Ukraine): Zhilevich, M., Ermilov, S., Kapski, D., Vovk, Y., Lyashuk, O., Vovk, I. Method of calculating the design parameters of a modulator anti-lock braking system with a high flow of working fluid // Scientific Journal of Silesian University of Technology. Series Transport. 2021, 110, 199-210
Bibliographic description (International): Zhilevich, M., Ermilov, S., Kapski, D., Vovk, Y., Lyashuk, O., Vovk, I. Method of calculating the design parameters of a modulator anti-lock braking system with a high flow of working fluid. Scientific Journal of Silesian University of Technology. Series Transport. 2021, 110, 199-210. ISSN: 0209-3324. DOI: https://doi.org/10.20858/sjsutst.2021.110.16
Utgivelsesdato: jan-2021
Date of entry: 30-jan-2021
Forlag: Silesian University of Technology
Country (code): PL
DOI: 10.20858/sjsutst.2021.110.16
Emneord: anti-lock braking system
hydraulic brake system
modulator
method of calculating
dump truck
Page range: 199-210
Serie/Rapport nr.: 110;
Abstrakt: The design dimensions of the executive hydraulic cylinders of the brake system of heavy-duty mining dump trucks cause high fluid flow during the braking process. Therefore, dimensions of the anti-blocking system modulator spool pair require unique electromagnets or hydraulic amplifiers to control. These solutions do not allow required modulator performance. A modulator scheme with division of the flow of fluid from the source to the brake cylinders was developed. This scheme allows during emergency braking passing an additional amount of fluid to cylinders through the valve, installed parallel to the main valve upon pressure increase phase and controlled by the pressure difference. The task is to develop a method for calculating the main structural dimensions of a modulator. The calculation of the valve of the second cascade, installed in parallel to the main stage, is carry out for the emergency braking mode with the maximum flow rate to ensure required performance of braking system. The balance of fluid flows equations are compile at the key points. The flow rate of the fluid through each of the valves is determine by the Torricelli formula, and the pressure difference across the valves is assume equals. The obtained relations allows to build a family of Q-p curves, which can be used to select the diameter and stroke of the additional valve depending on the flow rate in the brake system.
URI: http://elartu.tntu.edu.ua/handle/lib/34158
References (International): 1. Miller J.I., D. Cebon. 2010. “A high performance pneumatic braking system for heavy vehicles”. Vehicle System Dynamics 48 (1): 373-392. DOI: https://doi.org/10.1080/00423111003774472 2. United Nations. “UN regulation No. 13-H”. Accessed: 25.08.2020. Available at: https://op.europa.eu/s/ocLe 3. Belaz. “Mining dump trucks with hydromechanical transmission”. Accessed: 25.08.2020. Available at: http://belaz.by/en/products/products-belaz/dumpers/ 4. Liebherr. “Mining trucks”. Accessed: 25.08.2020. Available at: https://www.liebherr.com/en/deu/products/mining-equipment/mining-trucks/mining-trucks.html 5. Caterpillar. “Mining trucks”. Accessed: 25.08.2020. Available at: https://www.cat.com/en_US/products/new/equipment/off-highway-trucks/mining-trucks.html 6. Kapustin V.V. 1977. “The study of the dynamics and justification of the parameters of the modulator of the anti-lock hydraulic brake drive of heavy vehicles”. PhD thesis, Minsk, Belarus. (in Russian). 7. Frumkin A.K. 1981. Regulators of braking forces and anti-lock braking systems. Moscow, USSR: MDTSI. 8. Pervyshin N.I. 1985. “Development of a methodology for selecting the circuit and parameters of modulators of anti-lock braking systems for vehicles with especially high carrying capacity”, PhD thesis, Minsk, Belarus. (in Russian). 9. RB patent, 60T 8/48 (2006.01), BY 19812 C1, 2016.0228, Zhilevich M.I., Ermilov S.V. Hydraulic modulator for the brake system of a vehicle. Applicant and Patent Holder National Intellectual Property Center - Official Gazette No. 12016.02.28.-89 p. (in Russian) 10. Zhilevich M.I., S.V. Ermilov, P.R. Bartosh, P.N. Kishkevich. 2016. “A modulator of a hydraulic brake actuator with a high flow rate of the working fluid”. Bulletin of the Kharkov National Automobile and Highway University 75, 83-88. (in Russian).
Content type: Article
Vises i samlingene:Наукові публікації працівників кафедри автомобілів

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