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 (8): 76-79.DOI: 10.16638/j.cnki.1671-7988.2026.008.014

• 设计研究 • 上一篇    

轻型商用车加速抖动分析及优化

饶文明 1,2，罗轶超 1,2，刘剑 1,2，钟秤平 1,2，徐高新 1,2，罗文 1,2   

  1. 1.江铃汽车股份有限公司 产品技术开发中心； 2.智能网联汽车与动力系统江西省重点实验室，
  • 发布日期:2026-04-23
  • 通讯作者: 饶文明
  • 作者简介:饶文明（1985－），男，工程师，研究方向为汽车 NVH 性能
  • 基金资助:
    智能网联汽车与动力系统江西省重点实验室开放课题（JKLIP-KFKT-202509）

Analysis and Optimization of Acceleration Shaking in Light Commercial Vehicles

RAO Wenming1,2 , LUO Yichao1,2 , LIU Jian1,2, ZHONG Chengping1,2, XU Gaoxin1,2 , LUO Wen1,2   

  1. 1.Center of Product Technology Development, Jiangling Motors Company Limited; 2.Jiangxi Province Key Laboratory of Intelligent Connected Vehicles and Power Systems
  • Published:2026-04-23
  • Contact: RAO Wenming

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摘要： 针对某轻型商用车加速工况下方向盘剧烈抖动，伴随驾驶室低频压耳声问题，文章基 于共振机理研究、传递路径分析及模态识别与解耦技术，系统研究了故障产生的根本原因。 研究结果表明，方向盘抖动现象主要由传动轴垂向跳动模态与转向系统模态耦合引发共振所 致。据此，提出了工程可行的优化方案，并为后续同类车型的噪声、振动和声振粗糙度（NVH） 开发提供了重要实践参考。

关键词: 轻型商用车；传递路径；加速抖动；模态分离

Abstract: This study investigates the root cause of severe steering wheel vibration accompanied by low-frequency cabin boom in a light commercial vehicle during acceleration. Through resonance mechanism analysis, transfer path analysis, and modal identification/decoupling techniques, a systematic diagnosis is conducted. The results indicate that the steering wheel vibration primarily stems from resonance induced by coupling between the driveline bounce mode and the steering system mode. Based on these findings, engineering-feasible countermeasures are proposed, providing valuable practical insights for future noise, vibration, and harshness (NVH) development in similar vehicle models.

Key words: light commercial vehicle; transfer path; acceleration jitter; modal separation