摘要
随着汽车动力性能的提升以及底盘轻量化技术的广泛应用,对整车制动效能的功能设计要求越来越高,而市场用户又高度关注行车制动过程的舒适性。因此,如何全面考虑车辆使用的工况与环境条件,如何先期控制与充分验证各项制动性能属性,是困扰目前汽车制动设计的技术难题。以某紧凑型轿车后制动器颤鸣问题为研究对象,系统介绍低频颤鸣声识别和排查分析的过程,基于简化的后制动器动力学耦合模型,提出增加卡钳与后扭梁之间连接板部件厚度的改进方案,并通过实车试验验证方案的有效性,可为解决类似的汽车制动低频噪声问题提供借鉴与参考。
With the improvement of vehicle power performance and the application of chassis lightweight technology,the functional design requirements for vehicle braking efficiency are becoming higher and higher,and market customers are highly concerned with the comfort of braking process.Therefore,how to fully consider the design verification and attribute balance of vehicle braking performance under various environmental conditions is a technical dilemma.In this paper,the rear brake moan case of a compact car is studied.The process of low frequency moan noise recognition and investigation is systematically introduced.Based on the simplified dynamic coupling model of the rear brake,an improvement scheme to increase the thickness of the connecting plate between the clamp and the rear torsional beam is proposed.The effectiveness of the proposed scheme is verified.This study provides a reference for solving the similar problem of low-frequency brake noise.
作者
张军
张翰芳
张伦维
胡望岳
ZHANG Jun;ZHANG Hanfang;ZHANG Lunwei;HU Wangyue(Geely Automotive Research Institute(Ningbo)Co.,Ltd.,Ningbo 315336,Zhejiang,China)
出处
《噪声与振动控制》
CSCD
北大核心
2023年第3期276-281,共6页
Noise and Vibration Control
关键词
振动与波
盘式制动器
蠕行颤鸣
后扭梁
卡钳
摩擦系数
制动舒适性
vibration and wave
disc brake
creep moan
rear torsional beam
caliper
friction coefficient
braking comfort
