受迫振动下混合动力汽车传动冲击扭转振动控制  

Control of Transmission Impact Torsional Vibration in Hybrid Electric Vehicles Under Forced Vibration

作　　者：王金仙 王龙葛[2] WANG Jinxian;WANG Longge(Shanxi Vocational University of Engineering Science and Technology,Jinzhong Shanxi 030606 China;School of Software,Henan University,Kaifeng Henan 475000,China)

机构地区：[1]山西工程科技职业大学,山西晋中030606 [2]河南大学软件学院,河南开封475000

出　　处：《机械设计与研究》2024年第5期176-181,共6页Machine Design And Research

基　　金：河南省教育厅项目(222102210229)。

摘　　要：混合动力汽车环境错综复杂,电力推进轴系容易受到外部冲击载荷的作用,导致电力推进轴的主机中心线与轴系中心线之间存在巨大高低差变形值,会造成汽车的受迫振动。在受迫振动影响下形成了传动冲击扭转振动,为了控制这种振动,提出针对混合动力汽车传动系统的冲击性扭转振动控制方法。基于混合动力汽车传动系统扭转特性分析结果,获取传动系统在载荷作用下,受迫振动频率与电力推进轴的主机中心线与轴系中心线之间高低差变形值之间关系;以此为基础,确定扭转振动频率。建立冲击扭转振动的控制微分方程,构建状态空间内的传动系统运动平衡方程,完成控制算法设计;结合制定的控制算法,实现对混合动力汽车传动系统冲击扭转振动自适应控制。实验结果表明:使用该方法开展混合动力汽车传动系统冲击性扭转振动控制时,能够精准的检测出扭转振动频率,与实际扭转振动频率相似度高达98%;并且能够检测出在0.4 Hz~0.6 Hz期间产生的载荷冲击外部激励干扰值,在100 Hz~700 Hz的高频干扰响应控制中,虽然存在一定的波动,但是波动较小;扭转振动频率控制偏差小于1%。证实了所提控制方法具有较好的控制效果、控制性能较高。The environment of hybrid vehicles is complex and the electric propulsion shaft system is susceptible to external impact loads,resulting in significant height difference deformation between the centerline of the main engine and the centerline of the shaft system of the electric propulsion shaft,which can cause forced vibration of the vehicle.Under the influence of forced vibration,transmission impact torsional vibration is formed.In order to control this vibration,a control method for impact torsional vibration of hybrid electric vehicle transmission system is proposed.Based on the analysis of the torsional characteristics of the hybrid electric vehicle transmission system,the relation between the forced vibration frequency of the transmission system under load and the height difference deformation is obtained.The torsional vibration frequency is determined.The control differential equation for impact torsional vibration is established,the motion balance equation of the transmission system in the state space is constructed,and the control algorithm design is completed.By combining the developed control algorithm,adaptive control of impact torsional vibration in the transmission system of hybrid electric vehicles is achieved.The experimental results show that when using this method to control the impact torsional vibration of hybrid electric vehicle transmission systems,the torsional vibration frequency can be accurately detected,with a similarity of up to 98%to the actual torsional vibration frequency.And it can detect the external excitation interference generated during the load impact period of 0.4 Hz~DOI:10.13952/j.cnki.jofmdr.2024.02190.6 Hz.In the high-frequency interference response control of 100 Hz~700 Hz,although there is some fluctuation,the fluctuation is small.The deviation of torsional vibration frequency control is less than 1%.It has been confirmed that the proposed control method has good control performance.

关 键 词：混合动力汽车 传动系统 冲击性扭转振动 振动控制方法 控制模型设计 

分 类 号：U463[机械工程—车辆工程]