基于国产SOC的车载灭火控制器设计与实现

Design and Implementation of Vehicle Fire Extinguishing Controller Based on Domestic SOC

为满足自主可控器件国产化替代的需求,利用FPGA设计一种基于国产SOC(FPGA+MCU)M7A12N5L144为控制核心的车载灭火控制器。给出车载灭火控制器的总体设计思路,详细阐述其硬件电路,通过M7A12N5L144内部集成的AD口和I/O口采集各种火焰传感器的信号和灭火瓶的状态信号。结果表明:当条件满足火警工况时,控制器驱动灭火瓶喷出灭火剂,熄灭乘员舱、动力舱的火灾,同时将火情通过CAN通信总线传递给外部系统。该控制器开发简单,性能可靠,可用于整车的动力系统、乘员舱的灭火和安全保护。

In order to meet the demand of domestic replacement of self-control devices,a vehicle fire-fighting controller based on domestic SOC(FPGA+MCU)M7A12N5L144 is designed by using FPGA.The overall design idea of vehicle fire controller is given,and its hardware circuit is described in detail.The signals of various flame sensors and the status signals of fire extinguisher are collected through the AD port and IO port integrated in M7A12N5L144.The results show that when the conditions meet the fire conditions,the controller drives the fire extinguisher to spray out fire extinguishing agent to extinguish the fire in passenger compartment and power cabin,and at the same time,the situation is transmitted to the external system through can communication bus.The controller is simple to develop and reliable in performance,and can be used for fire fighting and safety protection of vehicle power system and passenger compartment.