Dynamic coordinated control method of gear shifting without clutch operation for hybrid electric vehicle

WANG Jun; WANG Qing-nian; WANG Peng-yu; CENG Xiao-hua

Volume 14 Issue 5

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WANG Jun, WANG Qing-nian, WANG Peng-yu, CENG Xiao-hua. Dynamic coordinated control method of gear shifting without clutch operation for hybrid electric vehicle[J]. Journal of Traffic and Transportation Engineering, 2014, 14(5): 51-58.

Citation:

WANG Jun, WANG Qing-nian, WANG Peng-yu, CENG Xiao-hua. Dynamic coordinated control method of gear shifting without clutch operation for hybrid electric vehicle[J]. Journal of Traffic and Transportation Engineering, 2014, 14(5): 51-58.

Citation:

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Dynamic coordinated control method of gear shifting without clutch operation for hybrid electric vehicle

State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, Jilin, China

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Author Bio:
WANG Jun(1985-), male, doctoral student, +86-431-85095227, wangjun9161029@163.com

WANG Qing-nian(1952-), male, professor, PhD, +86-431-85095227, wqn@jlu.edu.cn
Received Date: 2014-03-27
Publish Date: 2014-10-25

Abstract

Abstract

In order to decrease gear shifting impact, shorten gear shifting time and improve vehicle accelerating performance, a dynamic coordinated control method of gear shifting without clutch operation for hybrid electric vehicle was proposed based on dual-motor hybrid electric powertrain.The driven motor of automatic transmission input shaft was controlled to fast realize rotate speed synchronization in gear shifting process without clutch operation so as to shorten gear shifting time.The driven motor of automatic transmission output shaft was controlled to prevent clutch from over wearing because of frequent separation and combination, and the continuous torque output of driving system was achieved by using motor torque on the output shaft of transmission to reduce the impact degree in gear shifting.Test result shows that vehicle driving force keeps stable in gear shifting because of the dynamic coordinated control method.Compared with the traditional gear shifting method, clutch impact degree reduces by about 60%, and vehicle accelerating performances improve by 5.53% and 5.94% under 0-50 and 0-60 km·h^-1accelerating conditions, respectively.
- automotive engineering,
- hybrid electric vehicle,
- gear shifting,
- operation without clutch,
- rotate speed synchronization,
- dynamic coordinated control

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References(18)

References

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