多媒体显示系统链路硬件性能探究及系统故障分析方法  

Research on Link Hardware Performance and System Failure Analysis Method of Multimedia Display System

作　　者：罗明 卢云 夏鸣春 石红伟 栾吉哲 闫朋 张乐 丁岗 LUO Ming;LU Yun;XIA Ming-chun;SHI Hong-wei;LUAN Ji-zhe;YAN Peng;ZHANG Le;DING Gang(Geely Automotive Research Institute(Ningbo)Co.,Ltd.,Cixi 315315,China)

机构地区：[1]吉利汽车研究院(宁波)有限公司,浙江慈溪315315

出　　处：《汽车电器》2022年第12期47-50,共4页Auto Electric Parts

摘　　要：此文主要介绍常规多媒体显示硬件链路组成、原理,基于硬件链路插入损耗、回波损耗等高频性能分析为出发点,模拟不同硬件异常与故障的关系,建立故障模型,介绍不同的排查方法,便于快速锁定多媒体显示故障。同时介绍某车型实际问题的排查过程,便于更好地理解运用。This article mainly introducesthe composition and principle of conventional multimedia display hardware links. Based on the analysis of high-frequency performance such as hardware link insertion loss and return loss as the starting point,it simulates the relationship between different hardware anomalies and faults, establishes fault models,and introduces different troubleshooting methods,so as to quickly lock the multimedia display faults.At the same time, the investigation process of the actual problems of a vehicle is introduced to facilitate better understanding and application.

关 键 词：Fakra HSD 高频特性 频率 插入损耗 显示系统 故障模型 

分 类 号：U463.6[机械工程—车辆工程]