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Optimization Analysis on the Transmission Characteristics of Multipurpose Power Transmission Devices

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  • Zhen Zhu

    (The State key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China
    The State key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
    Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China)

  • Qinbo Zhang

    (The State key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China
    Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China)

  • Long Chen

    (Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China)

  • Xiang Tian

    (Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China)

  • Yingfeng Cai

    (Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China)

Abstract

Particularly crucial throughout the mode transition procedure is the transmission properties of hydro–mechanical composite transmission devices. This paper describes a multipurpose power transmission device that integrates hydrostatic, hydro-mechanical, and mechanical transmission and mainly discusses the transmission characteristic optimization problem from the perspective of speed regulation characteristics, shift strategy, and efficiency characteristics. The kinematic and dynamic analysis of the transmission system, the assembly scheme, and relevant parameters of the power transmission device are analyzed, and the speed regulation characteristic curve is obtained. The shift strategy of power transmission devices involving clutches and brakes during the whole speed regulation process and the best switch time of each component are found. The efficiency expression of the static pressure system is obtained from the efficiency model of the pump-control-motor system, and the efficiency of the multi-purpose power transmission device is obtained using the efficiency definition method. The fitting curves of hydrostatic system efficiency are determined using experimental data, and the efficiency of the hydro–mechanical composite power transmission system is obtained using the conversion mechanism method. The results show that the shift quality of power transmission devices can be improved greatly by controlling the switch sequence of clutches and brakes reasonably.

Suggested Citation

  • Zhen Zhu & Qinbo Zhang & Long Chen & Xiang Tian & Yingfeng Cai, 2023. "Optimization Analysis on the Transmission Characteristics of Multipurpose Power Transmission Devices," Energies, MDPI, vol. 16(19), pages 1-14, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:19:p:6989-:d:1255176
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    References listed on IDEAS

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    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.
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