Research on the Design Scheme of Multifunctional Power Transmission Device

被引：0
|
作者：
Zhu Z. [1 ]
Cai Y. [1 ]
Chen L. [1 ]
Xia C. [1 ]
Tian X. [1 ]
Shi D. [1 ]
机构：
[1] Automotive Engineering Research Institute, Jiangsu University, Zhenjiang
来源：
Qiche Gongcheng/Automotive Engineering | 2020年 / 42卷 / 10期
关键词：
Efficiency characteristic; Multifunctional power transmission device; Shifting strategy; Speed regulation characteristic; Transmission performances;
D O I：
10.19562/j.chinasae.qcgc.2020.10.012
中图分类号：
学科分类号：
摘要：
A multifunctional power transmission device integrating hydrostatic, hydro-mechanical and mechanical transmissions is designed in this paper. Hydrostatic transmission is mainly used in starting condition to meet the requirement of smooth start; hydro-mechanical compound transmission is mainly used in operation conditions for meeting the requirement of stepless speed regulation; and the mechanical transmission is mainly used in transportation operation with high transmission efficiency; while meeting transmission requirement, the power take off shaft can output power to drive other mechanisms. The transmission performance optimization of multi-mode switching power transmission device is studied from three aspects of speed regulation characteristic, shifting strategy and efficiency characteristic. According to the design requirements, the kinematics and kinetic analyses on the vehicle system is performed to obtain the assembly schemes and related parameters of power transmission device, with its speed regulation characteristic analyzed, and in the whole process of speed regulation, the shifting strategy of power transmission device, in which clutches and brakes are jointly involved, is studied, with the optimal switching moment for each element found out. The efficiency of hydraulic system is obtained by empirical formulas, and the efficiency of multifunctional power transmission device is calculated using efficiency definition method. The efficiency curves of hydraulic system are fitted based on test data, and the efficiency of hydro-mechanical compound transmission system is further determined by conversion mechanism method. The results show that the shifting quality of power transmission device can be greatly enhanced by properly selecting the switching sequence of shifting elements. Hydraulic system has better efficiency characteristic under the conditions of large displacement, medium-high speed and medium pressure, and can achieve smooth start; mechanical transmission has higher efficiency, but it also requests better road conditions; while hydro-mechanical compound transmission generally has relatively good efficiency characteristic in the range of whole displacement ratio and medium-high speeds. © 2020, Society of Automotive Engineers of China. All right reserved.
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页码：1378 / 1385and1403
相关论文
共 28 条
  • [1] BERTINI L, CARMIGNANI L, FRENDO F., Analytical model for the power losses in rubber V-belt continuously variable transmission (CVT), Mechanism and Machine Theory, 78, pp. 289-306, (2014)
  • [2] MACOR A, ROSSETTI A., Fuel consumption reduction in urban buses by using power split transmissions, Energy Conversion and Management, 71, pp. 159-171, (2013)
  • [3] BACKAS J, GHABCHELOO R, HUHTALA K., Gain scheduled state feedback velocity control of hydrostatic drive transmissions, Control Engineering Practice, 58, pp. 214-224, (2017)
  • [4] CIPEK M, PAVKOVIC D, PETRIC J., A control-oriented simulation model of a power-split hybrid electric vehicle, Applied Energy, 101, pp. 121-133, (2013)
  • [5] (2014)
  • [6] LINARES L, ME'NDEZ V, CATALA' N H., Design parameters for continuously variable power-split transmissions using planetaries with 3 active shafts, Journal of Terramechanics, 47, pp. 323-335, (2010)
  • [7] CAO J F, PENG J K, HE H W., Modeling and simulation research on power-split hybrid electric vehicle, Energy Procedia, 104, pp. 354-359, (2016)
  • [8] (2016)
  • [9] SHAMSHIRBAND S, PETKOVIC D, AMINI A, Et al., Support vector regression methodology for wind turbine reaction torque prediction with power-split hydrostatic continuous variable transmission, Energy, 67, pp. 623-630, (2014)
  • [10] GOMA AYATS J R, DIEGO-AYALA U, FENOLLOSA ARTES F., The singular point transition concept: a novel continuously variable transmission comprising planetary gear trains and a variator, Journal of Power Sources, 197, pp. 125-135, (2012)
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