车门 & 车镜控制模块解决方案—Ameya360电子元器件平台

Release time：2019-10-10
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source：Ameya360
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1、 前言

目前流行两款车门 ECU 方案，即集中式控制方案和分布式控制方案。其中，集中式控制是将电动车窗、后视镜、门锁等负载的控制集中由车身中央控制器完成，这样可降低整体成本，但增加了控制器的复杂性；而且控制过于集中、尺寸偏大，不利于安装、布线和散热。

车门 & 车镜控制模块解决方案—Ameya360电子元器件平台

而分布式控制方案为奥迪、大众等汽车公司所采用，每个车门内的负载由各自的 ECU 模块单独控制，也可由驾驶员侧 ECU 通过 CAN 总线控制。在这种方案中，两个前门 ECU 连接到 CAN 总线网络，后面两个车门的 ECU 可通过 CAN 总线或 LIN 总线方式相互通信，或直接由车身中央控制器模块驱动。分布式方案控制简单，但成本偏高。

2、 方案概述

Ameya360 车门 & 车镜控制模块解决方案是一种“总体分布，局部集中式”的控制方案，其框图如下图所示，即将左侧前后两个车门的控制作为一个 ECU 模块，右侧前后两个车门的控。制作为另一个 ECU 模块，两个模块之间以及模块与中央控制器之间均以 CAN 总线方式连接。


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