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Optimization of Shifting Quality for Hydrostatic Power-Split Transmission with Single Standard Planetary Gear Set

Author

Listed:
  • Zhaorui Xu

    (College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China
    These authors contributed equally to this work.)

  • Jiabo Wang

    (College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
    School of Mechanical and Electrical Engineering, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, China
    These authors contributed equally to this work.)

  • Yanqiang Yang

    (College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China
    These authors contributed equally to this work.)

  • Guangming Wang

    (College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China
    Shandong Provincial Key Laboratory of Horticultural Machineries and Equipment, Taian 271018, China)

  • Shenghui Fu

    (College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, China
    College of Engineering, China Agricultural University, Beijing 100083, China)

Abstract

To improve the driving comfort of continuously variable transmission (CVT) tractors, the shifting quality of hydrostatic power-split transmission with a standard planetary gear set was optimized. Firstly, the powertrain of the CVT and two shift strategies, direct-shift and bridge-shift, were introduced; then, a dynamic model of tractor shifting was constructed, and the models of key components such as wet clutches and proportional pressure valves were experimentally verified. Finally, the control parameters of the above two shifting strategies were optimized, and the acceleration impact and sliding energy loss caused by them were compared. The results showed the following: the minimum peak acceleration of the bridge-shift method was 0.385807 m/s 2 ; the energy consumption of the bridge-shift method was significantly lower than that of the direct-shift method; the sliding friction work of clutches decreased by 14.92% and 75.84%, respectively, while their power loss decreased by 22.82% and 74.48%, respectively.

Suggested Citation

  • Zhaorui Xu & Jiabo Wang & Yanqiang Yang & Guangming Wang & Shenghui Fu, 2023. "Optimization of Shifting Quality for Hydrostatic Power-Split Transmission with Single Standard Planetary Gear Set," Agriculture, MDPI, vol. 13(9), pages 1-18, August.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:9:p:1685-:d:1225710
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    References listed on IDEAS

    as
    1. Yusheng Xiang & Ruoyu Li & Christine Brach & Xiaole Liu & Marcus Geimer, 2022. "A Novel Algorithm for Hydrostatic-Mechanical Mobile Machines with a Dual-Clutch Transmission," Energies, MDPI, vol. 15(6), pages 1-15, March.
    2. Junyan Wang & Changgao Xia & Xin Fan & Junyu Cai, 2020. "Research on Transmission Characteristics of Hydromechanical Continuously Variable Transmission of Tractor," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-14, August.
    3. Yuan Chen & Yu Qian & Zhixiong Lu & Shuang Zhou & Maohua Xiao & Petr Bartos & Yeping Xiong & Guanghu Jin & Wei Zhang & Alina Gavrilu, 2021. "Dynamic Characteristic Analysis and Clutch Engagement Test of HMCVT in the High-Power Tractor," Complexity, Hindawi, vol. 2021, pages 1-8, January.
    Full references (including those not matched with items on IDEAS)

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