西华大学学报（自然科学版）2017，Vol.36Issue(6)：47-50,4.DOI:10.3969/j.issn.1673-159X.2017.06.008
汽车燃油泵怠速噪声问题优化
Study and Optimization on Idle Noise of Automobile Fuel Pump
摘要
Abstract
According to the NVH development process, under the air conditioner in idle condition, idle noise pressure level is high and the sound quality is poor.Diagnosis test indicates that the car idle noise is too large because the pump generates vibration and noise and they are transferred to the body.To reduce the vibration and noise of the fuel pump, the fuel pump steering gear and the oil plate were optimized.With such modifications, the test car reduces its interior noise by 4.9dB(A) in idling.At the same time, the subjective evaluation of the car comfort is significantly improved.关键词
车辆工程/怠速噪声/试验诊断/燃油泵/NVHKey words
vehicle engineering/idle noise/test for diagnosis/fuel pump/NVH引用本文复制引用
苏世荣,周伟,宛银生..汽车燃油泵怠速噪声问题优化[J].西华大学学报（自然科学版）,2017,36(6):47-50,4.基金项目
工业和信息化部国家重大科技专项资助项目(2014ZX04002041). （2014ZX04002041）
