主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2026, Vol. 51 ›› Issue (15): 22-28.DOI: 10.16638/j.cnki.1671-7988.2026.015.004

• 新能源汽车 • 上一篇    下一篇

增程器热机怠速发电异响机理分析与协同优化

田汪庆，范习民*，李凯，王国刚   

  1. 安徽江淮汽车集团股份有限公司
  • 发布日期:2026-08-11
  • 通讯作者: 范习民
  • 作者简介:田汪庆（1985－），男，工程师，研究方向为汽车性能测试; 通信作者：范习民（1979－），男，硕士，高级工程师，研究方向为动力系统 NVH 开发

Mechanism analysis and collaborative optimization of abnormal noise for range extender during hot idle power generation

TIAN Wangqing, FAN Ximin* , LI Kai, WANG Guogang   

  1. Anhui Jianghuai Automobile Group Company Limited
  • Published:2026-08-11
  • Contact: FAN Ximin

PDF

摘要： 针对增程式电动汽车热机怠速补电工况下普遍存在的传动系统敲击异响难题，从机电 耦合特性出发，开展异响机理剖析、关键影响因素识别及多维度协同优化研究。不同于传统 单一维度优化思路，文章构建“机理建模－因素识别－协同调控”的系统性优化框架，核心 创新点在于揭示机电耦合作用下“发动机燃烧波动－传动系统扭振－异响辐射”的内在关联， 提出“燃烧稳定性调控+机电协同补偿+传动阻尼匹配”三位一体的优化策略：通过点火参数 精细化标定改善发动机燃烧均匀性，依托发电机控制器（GCU）自适应增益控制实现扭矩波 动主动抵消，结合双质量飞轮（DMF）阻尼特性匹配削弱波动传递。实车验证结果表明，该 多维度协同策略可使传动系统转速波动幅值降低 65%以上，扭矩波动控制在±1.5 Nm 以内， 敲击异响主观评价值从 4.2 级降至 1.8 级，完全达到整车噪声、振动与声振粗糙度（NVH）设 计标准。研究成果不仅解决了目标车型的异响问题，更建立了增程器机电耦合系统异响的通 用优化方法，为同类混动车型低速低负荷工况 NVH 性能提升提供了全新理论支撑与工程范 式。

关键词: 增程器；机电耦合；怠速补电；敲击异响；机理分析；多维度协同优化

Abstract: Aiming at the prevalent knocking abnormal noise issue of the transmission system under hot-idle charging condition of extended-range electric vehicles, this paper conducts researches on abnormal noise mechanism analysis, identification of key influencing factors and multi-dimensional collaborative optimization based on electromechanical coupling characteristics. Different from the traditional single-dimensional optimization idea, this paper constructs a systematic optimization framework of "mechanism modeling–factor identification–collaborative regulation". The core innovation lies in revealing the internal correlation of "engine combustion fluctuation–transmission system torsional vibration–noise radiation" under the action of electromechanical coupling, and proposing a three-in-one optimization strategy of "combustion stability regulation+electromechanical collaborative compensation+transmission damping matching": improving the uniformity of engine combustion through refined calibration of ignition parameters, realizing active offset of torque fluctuation by means of adaptive gain control of the generator control unit (GCU), and weakening fluctuation transmission by matching the damping characteristics of the dual mass flywheel (DMF). Vehicle test results show that the multi-dimensional collaborative strategy can reduce the amplitude of transmission system speed fluctuation by more than 65%, control the torque fluctuation within ±1.5 Nm, and reduce the subjective evaluation value of knocking noise from 4.2 to 1.8, which fully meets the vehicle noise, vibration, harshness (NVH) design standard. The research results not only solve the noise problem of the target vehicle, but also establish a general optimization method for the noise of the range extender electromechanical coupling system, providing a new theoretical support and engineering paradigm for the improvement of NVH performance of similar hybrid vehicles under low-speed and low-load conditions.

Key words: range extender; electromechanical coupling; idle power compensation; knocking noise; mechanism analysis; multi-dimensional collaborative optimization