Method of calculating the design parameters of a modulator anti-lock braking system with a high flow of working fluid

• Autorzy: Zhilevich Mikhail , Ermilov Sergey , Kapski Denis , Vovk Yuriy , Lyashuk Oleg , Vovk Iryna

Identyfikatory

DOI

10.20858/sjsutst.2021.110.16

• Języki publikacji: EN

Abstrakty

EN

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 the required modulator performance. Thus, a modulator scheme with a 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 carried out for the emergency braking mode with the maximum flow rate to ensure the required performance of the braking system. The balance of fluid flows equations is compiled at the key points. The flow rate of the fluid through each of the valves is determined by the Torricelli formula, and the pressure difference across the valves is assuned equal. The obtained relations allows building 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.

Słowa kluczowe

EN

anti-lock braking system; hydraulic braking system; modulator; method of calculating; dump truck

PL

układ przeciwblokujący; hydrauliczny układ hamulcowy; modulator; metoda obliczania; wywrotka

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Zeszyty Naukowe. Transport / Politechnika Śląska
• Rocznik: 2021
• Tom: z. 110
• Strony: 199--210
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Zhilevich Mikhail

• Department of Hydropneumatic Automatics and Hydropneumatic Drive, Belarusian National Technical University, Nezavisimost Avenue 65, 220013 Minsk, Belarus

• https://orcid.org/0000-0002-5600-8250

autor

Ermilov Sergey

• Department of Hydropneumatic Automatics and Hydropneumatic Drive, Belarusian National Technical University, Nezavisimost Avenue 65, 220013 Minsk, Belarus

• https://orcid.org/0000-0003-0861-6478

autor

Kapski Denis

• Department of Transport Systems and Technologies, Belarusian National Technical University, Nezavisimost Avenue 65, 220013 Minsk, Belarus

• https://orcid.org/0000-0001-9300-3857

autor

Vovk Yuriy

• Department of Automobiles, Ternopil Ivan Puluj National Technical University, 56, Rus’ka Str., 46001 Ternopil, Ukraine

• https://orcid.org/0000-0001-8983-2580

autor

Lyashuk Oleg

• Department of Automobiles, Ternopil Ivan Puluj National Technical University, 56, Rus’ka Str., 46001 Ternopil, Ukraine

• https://orcid.org/0000-0003-4881-8568

autor

Vovk Iryna

• Department of Automobiles, Ternopil Ivan Puluj National Technical University, 56, Rus’ka Str., 46001 Ternopil, Ukraine

• https://orcid.org/0000-0002-4617-516X

Bibliografia

• 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”. Available at: https://op.europa.eu/s/ocLe.
• 3. Belaz. “Mining dump trucks with hydromechanical transmission”. Available at: http://belaz.by/en/products/products-belaz/dumpers/.
• 4. Liebherr. “Mining trucks”. Available at: https://www.liebherr.com/en/deu/products/mining-equipment/mining-trucks/mining-trucks.html.
• 5. Caterpillar. “Mining trucks”. 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.
• 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.
• 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.
• 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.