• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2023, Vol. 59 ›› Issue (4): 173-189.doi: 10.3901/JME.2023.04.173

• 运载工程 • 上一篇    下一篇

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行星耦合PHEV模式切换过程全频段瞬态扭振特性分析与主动抑制

王峰1, 张健1, 徐兴1, 王春海2, 阙红波3, 高扬3   

  1. 1. 江苏大学汽车工程研究院 镇江 212013;
    2. 南京金龙客车制造有限公司 南京 211215;
    3. 中车戚墅堰机车车辆工艺研究所有限公司 常州 213011
  • 收稿日期:2022-05-26 修回日期:2022-10-12 出版日期:2023-02-20 发布日期:2023-04-24
  • 通讯作者: 徐兴(通信作者),男,1979年出生,教授,博士研究生导师。主要研究方向为车辆系统动力学。E-mail:xuxinug@ujs.edu.cn
  • 作者简介:王峰,男,1986年出生,副教授,博士研究生导师。主要研究方向为智能机电传动系统分析控制、混合动力耦合传动系统动力学。E-mail:bewater@ujs.edu.cn;张健,男,1997年出生,硕士研究生。主要研究方向为混合动力车辆模式切换协调控制。E-mail:675818978@qq.com
  • 基金资助:
    国家自然科学基金(52172358)、江苏省重点研发计划(BE2019010)、江苏大学农业装备学部(NZXB20210103)、江苏省六大人才高峰(JXQC-036)和浙江省自然科学基金(LQ2OE050010)资助项目。

Transient Torsional Vibration Characteristic Analysis and Active Suppression of PHEV with Planetary Coupled Transmission System during Mode Transition Process

WANG Feng1, ZHANG Jian1, XU Xing1, WANG Chunhai2, QUE Hongbo3, GAO Yang3   

  1. 1. Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013;
    2. Nanjing Golden Dragon Bus Co., Ltd., Nanjing 211215;
    3. CRCC Qishuyan Institute Co., Ltd., Changzhou 213011
  • Received:2022-05-26 Revised:2022-10-12 Online:2023-02-20 Published:2023-04-24

摘要: 混合动力车辆模式切换过程中存在多源宽频段激励耦合,进而引发较大瞬态扭振,严重影响驾驶品质。以行星耦合PHEV为研究对象,建立考虑非线性啮合刚度、齿侧间隙以及离合器滑摩的混动系统瞬态扭振模型,选取混合动力车辆行车中启动发动机的典型工况,基于连续小波变换理论,展开各激励因素在全频段下对系统扭振影响特性分析,进一步设计考虑齿轮扭振特性的混杂模型预测控制器,进行宽频段瞬态扭振主动抑制。结果表明,齿轮间隙造成的脱齿-碰撞现象,加剧车辆模式切换过程中10~100 Hz低频扭振(整车层面纵向冲击),同时引发系统10~100 kHz高频扭振(耦合机构层面转矩振荡),而齿轮非线性刚度波动则主要集中在对系统高频扭振的影响。据此建立的考虑齿轮扭振特性的混杂模型预测控制器,将整车冲击度峰值降低47.8%、切换过程高频扭振方均根值降低33.2%,有效提升了驾驶舒适性和混合动力耦合装置使用寿命。

关键词: 混合动力车辆, 模式切换, 齿侧间隙, Morlet小波变换, 混杂模型预测控制

Abstract: The coupled multi-source and wide-band excitations exist in the process of mode transitions of planetary-coupled PHEV, and it may cause large transient torsional vibration and significantly deteriorate the driving quality. This research takes the planetary-coupled PHEV as the studied object, the transient torsional vibration model of hybrid powertrain is built, where the nonlinear meshing stiffness of gears, tooth-side clearance and sliding of clutch are taken into consideration; for the typical operation conditions with engine start, based on the continuous wavelet transformation, a full-band influence analysis of transient torsional vibration is carried out for various excitation factors, then a hybrid model predictive controller considering gear vibration characteristics is developed to actively suppress the transient torsional vibration. The result shows that the tooth drop-collision caused by tooth clearance would stimulate the low-frequency torsional vibration at 10-100 Hz (longitudinal impact in whole vehicle level) as well as lead to high-frequency torsional vibration at 10-100 kHz (torque fluctuation in coupling system level), whereas the nonlinear fluctuations of gear stiffness primarily influence the high-frequency torsional vibration. The proposed hybrid model predictive controller considering the characteristics of torsional vibration can reduce 47.8% of the peak value of vehicle impact and 33.2% of root mean square value of torsional acceleration, which indicate the considerable elevation of driving comforts and service life of power coupling device for hybrid powertrain.

Key words: hybrid electric vehicle, meshing stiffness, backlash, morlet wavelet transform, hybrid model predictive control

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