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Influence of Hydraulic Drivetrain Configuration on Kinematic Discrepancy and Energy Consumption during Obstacle Overcoming in a 6 × 6 All-Wheel Hydraulic Drive Vehicle

Author

Listed:
  • Mirosław Przybysz

    (Faculty of Mechanical Engineering, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland)

  • Marian Janusz Łopatka

    (Faculty of Mechanical Engineering, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland)

  • Arkadiusz Rubiec

    (Faculty of Mechanical Engineering, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland)

  • Piotr Krogul

    (Faculty of Mechanical Engineering, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland)

  • Karol Cieślik

    (Faculty of Mechanical Engineering, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland)

  • Marcin Małek

    (Faculty of Civil Engineering and Geodesy, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland)

Abstract

One of the problems limiting the off-road mobility of multi-axle-wheeled vehicles is a kinematic discrepancy, which increases the resistance to motion when negotiating obstacles. This paper presents the results of research on the possibility of reducing the kinematic discrepancy in vehicles with a hydrostatic drive for each wheel by the appropriate selection of hydraulic components—hydraulic motors and flow dividers. Four different configurations of the drivetrain were tested. They used slow-running hydraulic orbital motors and multi-piston radial motors, as well as gear and spool flow dividers. The tests were conducted with computer simulations based on tests that had already been performed to identify hydraulic parts. They allowed for the assessment of the influence of the characteristics of the components and the configuration of the drive system on the differentiation of the rotational speeds of individual wheels, slippage between the wheels and the ground, and the developed driving torques while overcoming obstacles. These values directly translate into the kinematic discrepancy of the system, the ability to overcome terrain obstacles, and energy consumption.

Suggested Citation

  • Mirosław Przybysz & Marian Janusz Łopatka & Arkadiusz Rubiec & Piotr Krogul & Karol Cieślik & Marcin Małek, 2022. "Influence of Hydraulic Drivetrain Configuration on Kinematic Discrepancy and Energy Consumption during Obstacle Overcoming in a 6 × 6 All-Wheel Hydraulic Drive Vehicle," Energies, MDPI, vol. 15(17), pages 1-21, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6397-:d:904182
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    References listed on IDEAS

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    1. Piotr Patrosz, 2021. "Influence of Properties of Hydraulic Fluid on Pressure Peaks in Axial Piston Pumps’ Chambers," Energies, MDPI, vol. 14(13), pages 1-23, June.
    2. Israa Azzam & Keith Pate & Jose Garcia-Bravo & Farid Breidi, 2022. "Energy Savings in Hydraulic Hybrid Transmissions through Digital Hydraulics Technology," Energies, MDPI, vol. 15(4), pages 1-24, February.
    3. Milos Vukovic & Roland Leifeld & Hubertus Murrenhoff, 2017. "Reducing Fuel Consumption in Hydraulic Excavators—A Comprehensive Analysis," Energies, MDPI, vol. 10(5), pages 1-25, May.
    4. Piotr Dudziński & Aleksander Skurjat, 2022. "Impact of Hydraulic System Stiffness on Its Energy Losses and Its Efficiency in Positioning Mechanical Systems," Energies, MDPI, vol. 15(1), pages 1-21, January.
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    1. Marian Janusz Łopatka & Karol Cieślik & Piotr Krogul & Tomasz Muszyński & Mirosław Przybysz & Arkadiusz Rubiec & Kacper Spadło, 2023. "Research on Terrain Mobility of UGV with Hydrostatic Wheel Drive and Slip Control Systems," Energies, MDPI, vol. 16(19), pages 1-22, October.

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