车载通信终端静态电流分析

Quiescent Current Analysis of Telematics Box(T-Box)

随着汽车智能化、网联化的发展,车载通信终端(T-BOX)作为互联互通的通道是不可或缺的零部件。T-BOX在车辆上供电取自蓄电池,其静态电流消耗直接影响到蓄电池续航时间及车辆启动,因此需要对T-BOX的静态电流消耗严格管控。针对T-BOX的静态电流消耗,本文结合实际项目给出设计和分析方法,满足目标要求。

Nowadays vehicles are getting more intelligent and connected.Being the gateway of telecommunication,telematics box(T-Box)has become an essential in-vehicle component.T-Box is powered by vehicle's main battery,its quiescent current consumption has direct influence on the battery life and hence affects the engine starting.Therefore,it must be strictly limited.Based on a practical T-Box design project,this article provides the methods of design and analysis to achieve the targeted quiescent current consumption level.