某款车型车外加速噪声源分析报告

The Analysis Acceleration Noise Sourceson a Car Models

在研究团队前期的摸底试验中，测得的某款车型车外加速噪声值为79．43dB（A），远超过ECER51标准中对该车型的限制要求。为了改善该车型的车外加速噪声，在试验场对其主要噪声源进行了为期200天的识别试验，期间主要进行的工作如下：

Only diagnostic test in a test site in early models of the car of a noise source to accelerate has been analytically summarized.In today's growing environmental noise pollution,urban traffic environment and vehicles,vehicle noise is a major source of pollution.Only we can effectively identify major noise sources,then the vehicle noise will be effectively controlled.