基于嵌入式系统的汽车发动机冷却风扇控制器设计  

Design of Cooling Fan Controller for Automobile Engine based on Embedded System

作　　者：李敏[1,2,3] 陈付龙 胡飞 陶玉贵 LI Min;CHEN Fulong;HU Fei;TAO Yugui(School of Information and Artificial Intelligence,Wuhu Institute of Technology,Wuhu,Anhui,241006,China;School of Computer and Information,Anhui Normal University;Collaborative Innovation Center of Opto-Mechatronics Application Technology)

机构地区：[1]芜湖职业技术学院信息与人工智能学院,安徽芜湖241006 [2]安徽师范大学计算机与信息学院 [3]光机电一体化应用技术协同创新中

出　　处：《小型内燃机与车辆技术》2022年第4期49-55,共7页Small Internal Combustion Engine and Vehicle Technique

基　　金：2020年度安徽省高校自然科学研究重点项目-基于国产FPGA的智能网联汽车直流无刷电机驱动系统及IP软核技术的研究(KJ2020A0927);2020年度安徽省高校优秀青年骨干人才国内访学研修项目(gxgnfx2020142);安徽省高校质量工程重大教学研究项目-“双高”建设背景下高职院校社会服务能力提升路径研究(2020jyxm2171)。

摘　　要：为解决传统汽车发动机冷却风扇电机易损坏,难维护等问题,采用效率高、低噪声、电源污染小的BLDCM结合嵌入式处理器和先进控制策略设计控制器,以满足汽车发动机冷却要求。采用嵌入式芯片STSPIN32F0A作为核心处理器,通过BEMF过零检测、单电阻电流采样、直流母线电压检测、三相全桥逆变,PWM控制电路等构建BLDCM控制器的硬件系统,基于ST的六步换向算法函数库设计BLDCM的电流和速度双闭环PID调节器软件。通过给定40 Hz模拟MSG的PWM信号输入到控制模块,驱动发动机冷却风扇按照PWM信号占空比和转速既定关系运行,经测试分析得出,发动机冷却风扇在转速切换过程中,响应快、转速平稳。该控制器的设计有效提高了汽车发动机冷却风扇的工作效率和稳定性。In order to solve the problems such as easy damage and difficult maintenance of traditional automobile engine cooling fan motor, the BLDCM of high adoption efficiency, low noise and low power pollution is combined with embedded processor and advanced control strategy for controller design to meet the requirements of automobile engine cooling. The embedded chip STSPIN32F0A is adopted as the core processor. The BLDCM controller hardware system was built through BEMF zero-crossing detection, single resistance current sampling, DC bus voltage detection, three-phase full-bridge inverter, PWM control circuit, etc. The current and speed double closed-loop PID controller software of BLDCM was designed based on the ST six-step reversing algorithm function library. Inputting the PWM signal of simulated MSG to the control module by given 40Hz, the engine cooling fan was driven to operate according to the established relationship between PWM signal duty ratio and speed. In the process of speed switching, the fan has fast response and steady speed, and the development of the controller can effectively improve the working efficiency of the cooling fan of automobile engine.

关 键 词：嵌入式系统 发动机冷却风扇 控制器 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]