汽车除雾过程中,手动操作除雾按钮易导致驾驶员分心,针对此问题设计了基于STM32的自动除雾控制系统。首先,进行自动除雾控制系统的总体设计,包括设计自动除雾的功能、总体架构和除雾方案;然后,进行硬件选型研究,设计了以STM32芯片为核...汽车除雾过程中,手动操作除雾按钮易导致驾驶员分心,针对此问题设计了基于STM32的自动除雾控制系统。首先,进行自动除雾控制系统的总体设计,包括设计自动除雾的功能、总体架构和除雾方案;然后,进行硬件选型研究,设计了以STM32芯片为核心的硬件电路原理图,开发了自动除雾控制系统的主程序、模数(analog-to-digital,AD)转换采集程序以及控制器局域网(controller area network,CAN)总线通信程序;最后,利用LabVIEW开发出数据监控界面,可实时监控系统运行状态。实验结果表明:该自动除雾控制系统性能可靠,数据精准,可长时间稳定运行。展开更多
Digital control system for pulsed MIG welding power based on STM32 is set up with 32-bit STM32FlO3ZET6 directing against the pulse waveform modulation of pulsed MIG welding. High-frequency inverter and medium-low freq...Digital control system for pulsed MIG welding power based on STM32 is set up with 32-bit STM32FlO3ZET6 directing against the pulse waveform modulation of pulsed MIG welding. High-frequency inverter and medium-low frequency pulse waveform modulation of pulsed MIG welding are realized by using the integrated PWM module within STM32 to generate PWM signals of phase-shifted full-bridge soft-switching and constant-current control of output current is achieved by means of anti-windup PI control algorithm to improve the stability and reliability of control system. Experimental results demonstrate that the designed digital control system based on STM32 can achieve pegrect pulsed MIG welding technique with stable welding process and good weld appearance, fully demonstrating the advantages of digital control based on STM32.展开更多
文摘汽车除雾过程中,手动操作除雾按钮易导致驾驶员分心,针对此问题设计了基于STM32的自动除雾控制系统。首先,进行自动除雾控制系统的总体设计,包括设计自动除雾的功能、总体架构和除雾方案;然后,进行硬件选型研究,设计了以STM32芯片为核心的硬件电路原理图,开发了自动除雾控制系统的主程序、模数(analog-to-digital,AD)转换采集程序以及控制器局域网(controller area network,CAN)总线通信程序;最后,利用LabVIEW开发出数据监控界面,可实时监控系统运行状态。实验结果表明:该自动除雾控制系统性能可靠,数据精准,可长时间稳定运行。
基金This work was supported by the National Natural Science Foundation of China （Grant No. 51205136） , the Specialized Research Fund for the Doctoral Program of Higher Education of China （ Grant No. 20100172120003 ） and the Fundamental Research Funds for the Central Universities （Key Program） （ Grant No. 2013ZZ034）.
文摘Digital control system for pulsed MIG welding power based on STM32 is set up with 32-bit STM32FlO3ZET6 directing against the pulse waveform modulation of pulsed MIG welding. High-frequency inverter and medium-low frequency pulse waveform modulation of pulsed MIG welding are realized by using the integrated PWM module within STM32 to generate PWM signals of phase-shifted full-bridge soft-switching and constant-current control of output current is achieved by means of anti-windup PI control algorithm to improve the stability and reliability of control system. Experimental results demonstrate that the designed digital control system based on STM32 can achieve pegrect pulsed MIG welding technique with stable welding process and good weld appearance, fully demonstrating the advantages of digital control based on STM32.
