考虑DCT车辆起步过程离合器接合稳定性的双质量飞轮参数优化

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Abstract In the starting process, the fluctuation of engine output torque leads to unstable clutch engagement and affects the ride comfort of the vehicle powertrain. Dual mass flywheel (DMF) can reduce the influence of engine torque fluctuation on clutch and vehicle powertrain. Aiming at the problem that clutch engagement instability affects vehicle ride comfort during the starting process, the influence of DMF stiffness, damping and inertia ratio of primary and secondary flywheel of DMF on clutch engagement stability of DCT vehicle during the starting process was studied by taking Dual clutch automatic transmission (DCT) vehicle as the research object. A multi-objective optimization model with clutch stick slip ratio and vehicle jerk as the objective function was established. The model was optimized by genetic algorithm. The optimal parameter combination of DMF which improves the clutch engagement stability and significantly reduces the vehicle impact was obtained.

Received: 25 May 2022 Published: 28 July 2023

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	Articles by authors
	GUO Zheng1
	QIN Datong1
	LI Shengwei2
	LIU Yonggang1

Cite this article:

GUO Zheng1,QIN Datong1,LI Shengwei2, et al. Parameter optimization of a dual mass flywheel considering clutch engagement stability during the starting of a DCT vehicle[J]. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(14): 162-169.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2023/V42/I14/162

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