功率分路混合动力传动系统建模及模式切换稳定性判据研究

Proceedings of 2014 International Conference on Modelling, Identification & Control Pub Date : 2014-12-01 DOI:10.1109/ICMIC.2014.7020756

Yue Ma, C. Xiang, Kun Huang, Hui Liu, Yu Li

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引用次数: 3

摘要

作为一种创新的混合动力汽车动力分流传动技术，多模动力缝隙混合动力变速器的动力学和稳定性控制是决定其模式切换特性的关键因素，在重载车辆上得到了广泛应用。基于带变速调速器的柴油机与带转矩控制的发电机之间的协同工作，建立了时变非线性系统的动态模型，并利用中心流形定理导出了动力系统模式切换的稳定性判据。仿真结果表明，发电机的负载转矩和转矩响应时间是影响模式切换稳定性的关键因素。此外，还验证了由制动器液压特性决定的模式切换质量。

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Modelling and mode switch stability criterion research of power-split hybrid transmission system

Dynamics and stability control are the key factors to determine mode switch characteristics of multi-mode power-slpit hybrid transmission which has been extensively applied in heavy-load vehicles as an innovative power-split transmission technology of hybrid electric vehicle. Based on cooperative work between the diesel engine with variable-speed governor and the generator with torque control, a dynamic model of time-varying nonlinear system is developed and stability criterion for mode switch of the powertrain system can be derived using center manifold theorem. The simulation results illustrate that both the load torque and torque response time of the generator are the critical factors affecting the stability properties of the mode switch. In addition, the mode switch quality determined by the hydraulic pressure characteristics of brake is also validated.

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Proceedings of 2014 International Conference on Modelling, Identification & Control

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