A Case Study of Open- and Closed-Loop Control of Hydrostatic Transmission with Proportional Valve Start-Up Process
This paper concerns the start-up process of a hydrostatic transmission with a fixed displacement pump, with particular emphasis on dynamic surplus pressure. A numerically controlled transmission using a proportional directional valve was analysed by simulation and experimental verification. The tran...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/5/1860 |
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| author | Paweł Bury Michał Stosiak Kamil Urbanowicz Apoloniusz Kodura Michał Kubrak Agnieszka Malesińska |
| author_facet | Paweł Bury Michał Stosiak Kamil Urbanowicz Apoloniusz Kodura Michał Kubrak Agnieszka Malesińska |
| author_sort | Paweł Bury |
| collection | DOAJ |
| description | This paper concerns the start-up process of a hydrostatic transmission with a fixed displacement pump, with particular emphasis on dynamic surplus pressure. A numerically controlled transmission using a proportional directional valve was analysed by simulation and experimental verification. The transmission is controlled by the throttle method, and the variable resistance is the throttling gap of the proportional spool valve. A mathematical description of the gear start-up process was obtained using a lumped-parameters model based on ordinary differential equations. The proportional spool valve was described using a modified model, which significantly improved the performance of the model in the closed-loop control process. After assuming the initial conditions and parameterization of the equation coefficients, a simulation of the transition start-up was performed in the MATLAB–Simulink environment. Simulations and experimental studies were carried out for control signals of various shapes and for various feedback from the hydraulic system. The pressure at the pump discharge port and the inlet port of the hydraulic motor, as well as the rotational speed of the hydraulic motor, were analysed in detail as functions of time. In the experimental verification, complete measuring lines for pressure, speed of the hydraulic motor, flow rate, and temperature of the working liquid were used. |
| first_indexed | 2024-03-09T20:40:30Z |
| format | Article |
| id | doaj.art-16af1392b6cc4242ad5528f8c420f9df |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T20:40:30Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-16af1392b6cc4242ad5528f8c420f9df2023-11-23T22:58:31ZengMDPI AGEnergies1996-10732022-03-01155186010.3390/en15051860A Case Study of Open- and Closed-Loop Control of Hydrostatic Transmission with Proportional Valve Start-Up ProcessPaweł Bury0Michał Stosiak1Kamil Urbanowicz2Apoloniusz Kodura3Michał Kubrak4Agnieszka Malesińska5Department of Technical Systems Operation and Maintenance, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, 50-371 Wrocław, PolandDepartment of Technical Systems Operation and Maintenance, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, 50-371 Wrocław, PolandFaculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 70-310 Szczecin, PolandFaculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, 00-653 Warsaw, PolandFaculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, 00-653 Warsaw, PolandFaculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, 00-653 Warsaw, PolandThis paper concerns the start-up process of a hydrostatic transmission with a fixed displacement pump, with particular emphasis on dynamic surplus pressure. A numerically controlled transmission using a proportional directional valve was analysed by simulation and experimental verification. The transmission is controlled by the throttle method, and the variable resistance is the throttling gap of the proportional spool valve. A mathematical description of the gear start-up process was obtained using a lumped-parameters model based on ordinary differential equations. The proportional spool valve was described using a modified model, which significantly improved the performance of the model in the closed-loop control process. After assuming the initial conditions and parameterization of the equation coefficients, a simulation of the transition start-up was performed in the MATLAB–Simulink environment. Simulations and experimental studies were carried out for control signals of various shapes and for various feedback from the hydraulic system. The pressure at the pump discharge port and the inlet port of the hydraulic motor, as well as the rotational speed of the hydraulic motor, were analysed in detail as functions of time. In the experimental verification, complete measuring lines for pressure, speed of the hydraulic motor, flow rate, and temperature of the working liquid were used.https://www.mdpi.com/1996-1073/15/5/1860hydrostatic transmissionhydrostatic transmission start uphydraulic drive |
| spellingShingle | Paweł Bury Michał Stosiak Kamil Urbanowicz Apoloniusz Kodura Michał Kubrak Agnieszka Malesińska A Case Study of Open- and Closed-Loop Control of Hydrostatic Transmission with Proportional Valve Start-Up Process Energies hydrostatic transmission hydrostatic transmission start up hydraulic drive |
| title | A Case Study of Open- and Closed-Loop Control of Hydrostatic Transmission with Proportional Valve Start-Up Process |
| title_full | A Case Study of Open- and Closed-Loop Control of Hydrostatic Transmission with Proportional Valve Start-Up Process |
| title_fullStr | A Case Study of Open- and Closed-Loop Control of Hydrostatic Transmission with Proportional Valve Start-Up Process |
| title_full_unstemmed | A Case Study of Open- and Closed-Loop Control of Hydrostatic Transmission with Proportional Valve Start-Up Process |
| title_short | A Case Study of Open- and Closed-Loop Control of Hydrostatic Transmission with Proportional Valve Start-Up Process |
| title_sort | case study of open and closed loop control of hydrostatic transmission with proportional valve start up process |
| topic | hydrostatic transmission hydrostatic transmission start up hydraulic drive |
| url | https://www.mdpi.com/1996-1073/15/5/1860 |
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