双行星排式混合动力传动系统非线性振动响应特性分析
Analysis of nonlinear vibration response characteristics of hybrid transmission system with dual-planetary gear sets
汪少华 1张启睿 2施德华 1殷春芳 3李春4
作者信息
- 1. 江苏大学 汽车工程研究院,江苏 镇江 212013;江苏省新能源汽车电驱动系统与智能控制工程研究中心,镇江 212013
- 2. 江苏大学 汽车工程研究院,江苏 镇江 212013
- 3. 江苏大学 电气信息工程学院,江苏 镇江 212013
- 4. 金龙联合汽车工业(苏州)有限公司,江苏 苏州 215026
- 折叠
摘要
针对一种双行星排混合动力传动系统,建立包含综合时变啮合刚度和啮合误差等内部激励以及不同动力源输出转矩和负载转矩等外部激励的纯轴向扭转非线性动力学模型.在此基础上,针对纯电动和混合动力驱动模式,采用四阶Runge-Kutta法研究系统在不同转矩激励下的非线性高频振动特性,获取不同动力源转矩分配对行星排各构件振动响应行为的影响.研究结果表明,在双电机联合驱动模式下,前行星排振动响应量大于后行星排,后行星排的振动响应波动范围大于前行星排,电机MG2应优先工作在转矩较大且较为恒定的工作区间;混合动力驱动模式下,前行星排受电机MG1影响较大,振动响应量及振动响应波动范围大于后行星排,电机MG1应保持在较为恒定的工作区间,电机MG2优先工作在较大的转矩区间.研究结果将为基于双行星排构型的功率分流式混合动力汽车系统动力学行为分析与转矩决策优化提供理论基础.
Abstract
Aiming at the hybrid transmission system with dual-planetary gear sets,the purely axial-torsional nonlinear dynamic model considering the internal excitations,including the comprehensive time-varying meshing stiffness and meshing error,and the external excitations,including the load torque and output torque of different power sources,is established.On this basis,the fourth-order Runge-Kutta method is applied to study the nonlinear high-frequency vibration characteristics of the system in the pure electric and hybrid driving modes with different torque excitations.The impacts of the torque allocation of different power sources on each component of the planetary gear sets are obtained.Research results demonstrate that in the pure electric driving mode with dual motors,the vibration response of the front planetary gear set is greater than that of the rear one,and the vibration fluctuation of the rear planetary row is greater than that of the front planetary row.The motor MG2 should preferentially work in the working range with large and constant torque;In the hybrid drive mode,the front planetary row is greatly affected by the motor MG1,and the vibration response amount and vibration response fluctuation range are larger than those of the rear planetary row.The motor MG1 should be kept in a relatively constant working range,and the motor MG2 should preferentially work in a larger torque range.The research results will provide a theoretical basis for the dynamic behavior analysis and torque allocation optimization of the power-split HEV based on the dual-planetary gear sets configuration.
关键词
车辆工程/双行星排/动力学模型/振动响应特性/转矩分配Key words
vehicle engineering/dual-planetary gear sets/dynamic model/vibration response characteristics/torque distribution引用本文复制引用
基金项目
国家自然科学基金(51905219)
江苏省自然科学基金(BK20190844)
镇江市重点研发计划(GY2020020)
出版年
2024
NETL
NSTL
万方数据