Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (10): 2265-2277.doi: 10.13229/j.cnki.jdxbgxb20210256

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Configuration analysis of hydro⁃mechanical composite transmission devices

Zhen ZHU1,2,3(),Deng-feng WANG1,Xiao-dong SUN1,3(),Ling-xin ZENG3,Ying-feng CAI3,Long CHEN3   

  1. 1.State Key Laboratory of Automotive Simulation and Control，Jilin University，Changchun 130022，China
    2.State Key Laboratory of Power System of Tractor，Luoyang 471000，China
    3.Automobile Engineering Research;Institute，Jiangsu University，Zhenjiang 212013，China
  • Received:2021-04-01 Online:2022-10-01 Published:2022-11-11
  • Contact: Xiao-dong SUN E-mail:zhuzhenjs@126.com;xdsun@ujs.edu.cn

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Abstract:

According to the advantages and disadvantages of hydrostatic transmission mode and mechanical transmission mode， and the characteristics of power split mechanism and power confluence mechanism， the configuration analysis was carried out， and 5 typical hydro-mechanical composite transmission schemes was put forward. The structures of each transmission scheme were introduced according to mechanism kinematics， and the characteristics of different working modes were analyzed by combined with speed regulation characteristic curves of each transmission. Taking a typical transmission device as the research object， the simulation model based on Simulation X was built， the engaging sequence of clutches was set up， the speed changing curves of hydraulic system， confluence mechanism and output shaft in different gears were analyzed. The results show that， the actual speed regulation curves of variable speed transmission device are consistent with the theoretical speed regulation curves basically， a good continuous speed regulation function in a large range is realized， and the related research results of hydro-mechanical composite transmission can provide theoretical reference for the practical engineering application.

Key words: vehicle engineering, hydro-mechanical composite transmission, high efficiency stepless speed regulation, transmission schemes, speed regulation characteristics, Simulation X

CLC Number: 

  • U463.2

Fig.1

Structure principle of hydro-mechanical composite transmission devices"

Fig.2

Structure principle diagram of scheme 1"

Table 1

Switching elements state of scheme 1"

传动模式档 位切换元件
SBC1C2C3C4
液压传动F（H）

前进挡

▲△△△▲
机液传动（功率分流）FA（HM）△△▲▲△
机液传动（功率汇流）FB（HM）△▲△▲△
机械传动F（M）△▲▲△△
液压传动R（H）后退档▲△△△▲

Fig.3

Speed regulation characteristic curves of scheme 1"

Fig.4

Structure principle diagram of scheme 2"

Table 2

Switching elements state of scheme 2"

传动模式挡位切换元件
B1B2B3B4B5B6C1C2C3C4C5C6C7F1F2F3
液压传动F（H）△▲△△△△▲▲△▲△△▲△△△
R（H）△△△△△△▲▲▲△△△▲△△△

机液传动

（功率分流）

FA1（HM）△△△▲△△▲▲△△△▲▲△▲△
FA2（HM）△△△▲△△▲▲△▲△△▲△△△
FA3（HM）△△△△△△▲▲△▲▲△▲▲△△
FA4（HM）△▲△△△△▲▲△△△▲▲△▲△

机液传动

（功率汇流）

FB1（HM）△△△▲△△▲▲▲△△▲△△▲△
FB2（HM）△△△▲△△▲▲▲▲△△△△△△
FB3（HM）△△△△△△▲▲▲▲▲△△▲△△
FB4（HM）△▲△△△△▲▲▲△△▲△△▲△
机械传动F1（M）△△△△△△△△▲△△▲▲△▲▲
F2（M）△△△△▲△△△▲▲△△▲△△▲
F3（M）△△△△▲△△△▲▲▲△▲▲△▲
F4（M）△△▲△△△△△▲▲△△▲△▲△
R（M）△▲△△△△△△▲△△▲▲△▲△

Fig.5

Structure principle diagram of scheme 3"

Table 3

Switching elements state of scheme 3"

传动模式挡位切换元件
BC0C1C2C3C4C5C6C7C8C9C10
液压传动F（H）△▲▲▲△△△△△△△△
R（H）△▲▲▲△△△△△△△△
机液传动F1（HM）△▲▲△▲▲△△△△△△
F2（HM）△▲▲△△△△△▲▲△△
F3（HM）△▲▲△▲△▲△△△△△
F4（HM）△▲▲△△△△△▲△▲△
R1（HM）△▲▲△▲△△▲△△△△
R2（HM）△▲▲△△△△△▲△△▲
机械传动F1（M）▲△△△▲▲△△△△△△
F2（M）▲△△△△△△△▲▲△△
F3（M）▲△△△▲△▲△△△△△
F4（M）▲△△△△△△△▲△▲△
R1（M）▲△△△▲△△▲△△△△
R2（M）▲△△△△△△△▲△△▲

Fig.6

Speed regulation characteristic curves of scheme 3"

Fig.7

Structure principle diagram of scheme 4"

Table 4

Switching elements state of scheme 4"

传动模式挡位切换元件
B1B2C0C1C2C3C4C5C6C7
单流传动H△▲▲▲△△△▲△△
G△▲▲△△△▲▲△△
V△△▲△▲▲△△△△
双流传动GV△△▲△▲△▲△△△
HG△△▲▲△△▲△△△
HV△△▲▲▲△△△△△

能量管理

系统

传动系统制动能量回收▲▲△▲△△△▲△△
动力输出系统能量回收▲△△△△△△△△▲
能量管理系统驱动传动系统▲▲△▲△△△▲△△
能量管理系统驱动动力输出系统▲△△△△△△△△▲

Fig.8

Speed regulation characteristic curves of scheme 4"

Fig.9

Structure principle diagram of scheme 5"

Table 5

Switching elements state of scheme 5"

传动模式挡位切换元件
S1S2C1C2C3C4C5C6C7C8

机液传动

（正向）

F3N（HM）▲△▲△▲△△△▲△
F3P（HM）▲△△▲△▲△△▲△
F2N（HM）▲△▲△▲△△▲△△
F2P（HM）▲△△▲△▲△▲△△
F1N（HM）▲△▲△▲△▲△△△
F1P（HM）▲△△▲△▲▲△△△
液压传动F（H）▲△△△△△△△△▲
R（H）△▲△△△△△△△▲

机液传动

（负向）

R1P（HM）△▲△▲△▲△▲△△
R1N（HM）△▲▲△▲△△▲△△

Fig.10

Speed regulation characteristic curves of scheme 5"

Fig.11

Simulation model of scheme 5"

Fig.12

Comparative curves of theoretical calculation and simulation model"

Fig.13

Speed changing curves simulation results of scheme 5"

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