汽车雨刮器的自动控制系统设计与实现
设计总说明
本次设计的汽车自动雨刷省去了人为手动操作雨刷的问题，能够自动感应雨量并进行相应的工作。自动雨刷用雨滴传感器作为检测器来感应雨量的大小，把感应信号传给单片机，通过软件的控制驱动芯片自动调节电机的正反转与转动频率。此次设计采用40引脚的单片机AT89S52，设计中运用ULN2003AN驱动芯片来驱动步进电机的运转，克服了电机在低频工作时的噪音大，震动大的缺点。本次设计在一定的程度上为驾驶者提供了舒适性和安全性的保障，避免了由于驾驶者手动操作雨刷的不当而带来的交通安全问题，同时也大大的提高了汽车雨刷的全面性与可靠性。
在汽车智能雨刮系统中由于两个雨刮电机的转速不可能完全一样，就存在两个雨刮摆动不同步的问题。本文在分析了模糊控制理论及雨刮同步摆动规则的基础上，提出了一种基于模糊控制的汽车智能雨刮系统。该系统将转速偏差和转速偏差变化量模糊化为模糊控制器的输入语言变量，根据所制定的一套模糊控制规则来选择控制PWM的输出语言变量，并以此通过脉宽调制技术来驱动直流电机，使两个雨刮同步摆动。
办身份证需要多少天>瓜架
关键词：雨滴传感器；步进电机；单片机；雨刮器
Car 方子璇Wiper Blade Design and Implementation of Automatic Control S员工手机ystem沟通的含义
Design Description
The design of the automatic wipers is improved further in the traditional manual bad on. Automatic wiper with rain nsor as the detector size induced precipitation, the induction signal is nt to the single chip microcomputer. reversing and turning frequency automatic adjusting motor through the control of the software driver. The design is bad on the 40pin of the mic AT89S52. That u of ULN2003AN to drive the stepper motor driver chip design operation. The pul width modulation’s chopper driver mode. Thus greatly overcome the noi when the motor work in the low frequency , vibration faults. Provide comfort and safely guarantee this design in a certain extent for the driver, to avoid the traffic safety problem caud by the driver manually operated wiper improper. A沙漏
t the same time also greatly improve the comprehensiveness and reliability of automobile windshield wiper.
In intelligent windscreen wiper system of automobile, As the problem of technics, rotate speed of two electro motors are not the same completely, so there are the problems that two wiper blades swing ansynchronous. In the thesis, a intelligent windscreen wiper system of automobile bad on fuzzy control is prented, by analyzing fuzzy control theory and synchronous swing rules of windscreen wiper. The speed error and its change were ud as fuzzy stable variable. According to a t of fuzzy rules, the output variable was lected to control the PWM switch. In this way, the PWM technique was ud to drive the DC motor and control windscreen wiper to swing synchronously.
二年级语文上册生字表keywords：rain nsor;Stepper motor;MCU; windscreen wiper
直营店和加盟店的区别
