车用增压器同步噪声降低措施研究  

Study on the Measures of Reducing Synchronous Noise of Vehicle Supercharger

作　　者：王海耀[1] 杨瑞文[1] 齐斌 WANG Haiyao;YANG Ruiwen;QI Bin(Pan Asia Technical Automotive Center Co.,Ltd.,Shanghai,201201,China)

机构地区：[1]泛亚汽车技术中心有限公司,上海201201

出　　处：《小型内燃机与车辆技术》2022年第3期73-80,共8页Small Internal Combustion Engine and Vehicle Technique

摘　　要：基于增压器同步噪声产生机理,阐述了影响增压器同步噪声的主要因素,包括转子初始动平衡值、转子动平衡漂移、机油温度(机油粘度)、增压器负载。结合案例,重点分析了增压器低速同步噪声产生的原因,并提出了噪声降低措施。增压器低速同步噪声与低机油温度、大负载有较大关系,在小排量增压发动机匹配重载车辆冷车时易于产生。在处理此类噪声问题时,应优先考虑降低冷车时的增压器负载,同时调整转子初始动平衡值。Based on the generation mechanism of turbocharger synchronous noise, this paper elaborates the main factors of turbocharger synchronous noise, including rotor initial dynamic balance value, rotor dynamic balance drift, oil temperature(oil viscosity), and turbocharger load. Based on the case, the reasons and the reducing measures for the turbocharger low-speed synchronous noise are expatiated. The turbocharger low-speed synchronous noise has a great relationship with low oil temperature and heavy load.It is easy to happen when a small-displacement turbocharged engine is equipped with a heavy-duty vehicle during cold condition. In dealing with this type of noise issue, priority should be given to reduce the turbocharger load before the engine is warmed up, meanwhile, the adjustment of the rotor initial dynamic balance value should be considered as supplement for optimization.

关 键 词：增压器 同步噪声 转子动平衡 

分 类 号：U464.135[机械工程—车辆工程]