降低乘用车仪表台异响DPU问题的技术方法

Technical method to reduce the abnormal sound DPU problem of passenger car instrument panel

为了解决客户对乘用车仪表台总成异响的抱怨,降低后期仪表台总成的保修成本,本文收集了异响相关数据,定位了异响产生的零件,并利用尺寸链分析表、模流分析等技术方法,从人机料法等层面分析了仪表台总成异响产生的原因,制定了相应的改善方法。文章以DPU为指标,考察了改善方法的有效性。结果表明,利用本文的技术方法,该车型DPU由0.11降至0.015,降幅为86%,证实了该方法的有效性,为后续其他车型仪表台异响提供有效解决思路。

In order to solve customers'complaints about abnormal sound of the dashboard in passenger cars and reduce the warranty cost of the dashboard,we collected the abnormal sound data.Then we analyzed the causes of abnormal sound of the dashboard in the aspects among man factor,machine factor law factor and material factor.Finally,we used the dimensional chain analysis table,mold fl ow analysis and other technical methods to fi nd the causes and developed corresponding improvement method.We take DPU as an indicator.The results show that the DPU of dashboard is reduced by 86%from 0.11 to 0.015 by using the technical method.This provides an eff ective solution to the abnormal sound of the dashboard in other models.