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Dynamic characteristic analysis and clutch engagement test of HMCVT in the high-power tractor

Dynamic characteristic analysis and clutch engagement test of HMCVT in the high-power tractor
Dynamic characteristic analysis and clutch engagement test of HMCVT in the high-power tractor
Hydromechanical continuously variable transmission (HMCVT) is capable of bearing large torque and has wide transmission range, which is suitable for high-power tractors. Dynamic characteristics could influence the tractor life, especially in a high-power tractor. Wet clutch is the crucial component in the HMCVT, which could smooth and soft power transmission. Therefore, it is important to study the dynamic characteristics and implement the wet clutch test of HMCVT. In this paper, AMESim is used to establish virtual models of gearbox, pump-controlled hydraulic motor system, and shifting hydraulic system. Then, a simulation study of tractor operation under working condition is carried out. The internal and external meshing forces of the planetary row are analyzed. Finally, the wet clutch engagement process of HMCVT in the high-power tractor is tested to verify the oil pressure. The simulation results show that the values of internal and external meshing force become larger as the throttle opening increases. At the moment of shifting change, the meshing forces of the planetary gear have great impact. The clutch test shows that the trend of the oil filling curve obtained from the bench test is similar to that obtained from the theoretical curve, which verifies the simulation results.
dynamic characteristics, Hydromechanical continuously variable transmission, high-power tractor, Gearbox dynamic model
1076-2787
1-8
Chen, Yuan
05bcc581-b03f-44a8-b0e0-f27f889ec994
Qian, Yu
edb8082b-c264-46e4-beae-8e35ceb3e035
Lu, Zhixiong
116b4fcd-8735-4fc8-99be-bbab32ad5969
Zhou, Shuang
77936abb-cc4a-4cfd-91be-f2312c86e8bb
Maohua, Xiao
152fa9ad-805e-4f8d-9562-f3f5b63447db
Bartos, Petr
7925551e-3875-4266-aa16-72abb71eef8e
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Jin, Guanghu
41ea35ee-7bb8-41d4-b1bb-a9a354edbcb3
Zhang, Wei
79a163a3-0c73-4769-88bc-deaa0a8957ce
Chen, Yuan
05bcc581-b03f-44a8-b0e0-f27f889ec994
Qian, Yu
edb8082b-c264-46e4-beae-8e35ceb3e035
Lu, Zhixiong
116b4fcd-8735-4fc8-99be-bbab32ad5969
Zhou, Shuang
77936abb-cc4a-4cfd-91be-f2312c86e8bb
Maohua, Xiao
152fa9ad-805e-4f8d-9562-f3f5b63447db
Bartos, Petr
7925551e-3875-4266-aa16-72abb71eef8e
Xiong, Yeping
51be8714-186e-4d2f-8e03-f44c428a4a49
Jin, Guanghu
41ea35ee-7bb8-41d4-b1bb-a9a354edbcb3
Zhang, Wei
79a163a3-0c73-4769-88bc-deaa0a8957ce

Chen, Yuan, Qian, Yu, Lu, Zhixiong, Zhou, Shuang, Maohua, Xiao, Bartos, Petr, Xiong, Yeping, Jin, Guanghu and Zhang, Wei (2021) Dynamic characteristic analysis and clutch engagement test of HMCVT in the high-power tractor. Complexity, 2021, 1-8, [8891127]. (doi:10.1155/2021/8891127).

Record type: Article

Abstract

Hydromechanical continuously variable transmission (HMCVT) is capable of bearing large torque and has wide transmission range, which is suitable for high-power tractors. Dynamic characteristics could influence the tractor life, especially in a high-power tractor. Wet clutch is the crucial component in the HMCVT, which could smooth and soft power transmission. Therefore, it is important to study the dynamic characteristics and implement the wet clutch test of HMCVT. In this paper, AMESim is used to establish virtual models of gearbox, pump-controlled hydraulic motor system, and shifting hydraulic system. Then, a simulation study of tractor operation under working condition is carried out. The internal and external meshing forces of the planetary row are analyzed. Finally, the wet clutch engagement process of HMCVT in the high-power tractor is tested to verify the oil pressure. The simulation results show that the values of internal and external meshing force become larger as the throttle opening increases. At the moment of shifting change, the meshing forces of the planetary gear have great impact. The clutch test shows that the trend of the oil filling curve obtained from the bench test is similar to that obtained from the theoretical curve, which verifies the simulation results.

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More information

Accepted/In Press date: 30 December 2020
e-pub ahead of print date: 13 January 2021
Keywords: dynamic characteristics, Hydromechanical continuously variable transmission, high-power tractor, Gearbox dynamic model

Identifiers

Local EPrints ID: 446183
URI: http://eprints.soton.ac.uk/id/eprint/446183
ISSN: 1076-2787
PURE UUID: 40cbf2e6-fffc-4b5b-8db2-ecec4bd299bf
ORCID for Yeping Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 26 Jan 2021 17:32
Last modified: 26 Nov 2021 02:44

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Contributors

Author: Yuan Chen
Author: Yu Qian
Author: Zhixiong Lu
Author: Shuang Zhou
Author: Xiao Maohua
Author: Petr Bartos
Author: Yeping Xiong ORCID iD
Author: Guanghu Jin
Author: Wei Zhang

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