METHOD OF CALCULATING THE DESIGN PARAMETERS OF A MODULATOR ANTI-LOCK BRAKING SYSTEM WITH A HIGH FLOW OF WORKING FLUID
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. T...
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| Format: | Article |
| Language: | English |
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Silesian University of Technology
2021-03-01
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| Series: | Scientific Journal of Silesian University of Technology. Series Transport |
| Subjects: | |
| Online Access: | http://sjsutst.polsl.pl/archives/2021/vol110/199_SJSUTST110_2021_Zhilevich_Ermilov_Kapski_Vovk_Lyashuk_Vovk.pdf |
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| author | Mikhail ZHILEVICH Sergey ERMILOV Denis KAPSKI Yuriy VOVK Oleg LYASHUK Iryna VOVK |
| author_facet | Mikhail ZHILEVICH Sergey ERMILOV Denis KAPSKI Yuriy VOVK Oleg LYASHUK Iryna VOVK |
| author_sort | Mikhail ZHILEVICH |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-2ac0721bd62b4b7cb3c2eae5ab2325ef |
| institution | Kabale University |
| issn | 0209-3324 2450-1549 |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Silesian University of Technology |
| record_format | Article |
| series | Scientific Journal of Silesian University of Technology. Series Transport |
| spelling | doaj-art-2ac0721bd62b4b7cb3c2eae5ab2325ef2025-01-02T06:51:30ZengSilesian University of TechnologyScientific Journal of Silesian University of Technology. Series Transport0209-33242450-15492021-03-0111019921010.20858/sjsutst.2021.110.16METHOD OF CALCULATING THE DESIGN PARAMETERS OF A MODULATOR ANTI-LOCK BRAKING SYSTEM WITH A HIGH FLOW OF WORKING FLUIDMikhail ZHILEVICHSergey ERMILOVDenis KAPSKIYuriy VOVKOleg LYASHUKIryna VOVKThe 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.http://sjsutst.polsl.pl/archives/2021/vol110/199_SJSUTST110_2021_Zhilevich_Ermilov_Kapski_Vovk_Lyashuk_Vovk.pdfanti-lock braking systemhydraulic brake systemmodulatormethod of calculatingdump truck |
| spellingShingle | Mikhail ZHILEVICH Sergey ERMILOV Denis KAPSKI Yuriy VOVK Oleg LYASHUK Iryna VOVK 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 anti-lock braking system hydraulic brake system modulator method of calculating dump truck |
| title | METHOD OF CALCULATING THE DESIGN PARAMETERS OF A MODULATOR ANTI-LOCK BRAKING SYSTEM WITH A HIGH FLOW OF WORKING FLUID |
| title_full | METHOD OF CALCULATING THE DESIGN PARAMETERS OF A MODULATOR ANTI-LOCK BRAKING SYSTEM WITH A HIGH FLOW OF WORKING FLUID |
| title_fullStr | METHOD OF CALCULATING THE DESIGN PARAMETERS OF A MODULATOR ANTI-LOCK BRAKING SYSTEM WITH A HIGH FLOW OF WORKING FLUID |
| title_full_unstemmed | METHOD OF CALCULATING THE DESIGN PARAMETERS OF A MODULATOR ANTI-LOCK BRAKING SYSTEM WITH A HIGH FLOW OF WORKING FLUID |
| title_short | METHOD OF CALCULATING THE DESIGN PARAMETERS OF A MODULATOR ANTI-LOCK BRAKING SYSTEM WITH A HIGH FLOW OF WORKING FLUID |
| title_sort | method of calculating the design parameters of a modulator anti lock braking system with a high flow of working fluid |
| topic | anti-lock braking system hydraulic brake system modulator method of calculating dump truck |
| url | http://sjsutst.polsl.pl/archives/2021/vol110/199_SJSUTST110_2021_Zhilevich_Ermilov_Kapski_Vovk_Lyashuk_Vovk.pdf |
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