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Intelligent windshield wiper controller based on fuzzy control

A fuzzy controller and fuzzy control technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems that cannot overcome the influence of large-scale changes in load parameters, and achieve the effect of overcoming large-scale changes

Inactive Publication Date: 2011-05-11
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

The system adopts fuzzy control. Although the traditional PID control has reliable performance and simple structure, it cannot overcome the influence of large-scale changes in load parameters and nonlinear factors on the system.

Method used

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  • Intelligent windshield wiper controller based on fuzzy control
  • Intelligent windshield wiper controller based on fuzzy control
  • Intelligent windshield wiper controller based on fuzzy control

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Such as figure 1 As shown, the intelligent wiper controller based on fuzzy control of the present invention is mainly composed of rain sensor, F330 controller, wiper motor, wiper mechanism, windshield, LIN bus interface and other components. Among them, the rain sensor is used to detect whether there are raindrops on the windshield and the size of the rain, and perform A / D conversion on the output signal of the rain sensor, and the controller judges the current rainfall according to the signal, combined with the user setting information from the LIN bus , output PWM (pulse width modulation) signal to control the swing speed of the wiper motor, and drive the wiper mechanism to sweep away the rainwater on the windshield.

[0036] The intelligent wiper controller based on fuzzy control needs to detect the amount of rain in real time, communicate wi...

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Abstract

The invention relates to an intelligent windshield wiper controller based on fuzzy control, comprising a rainfall sensor and an F330 controller, wherein the F330 controller is designed as a fuzzy controller; the rainfall sensor inputs a signal for detecting whether raindrops exist on a windshield and detecting rainfall into the fuzzy controller after the signal is subjected to A / D (analog / digital) conversion; and the fuzzy controller judges the current rainfall according to the signal, and outputs a pulse-width modulation (PWM) signal by combining with user setting information from an LIN (local interconnect network) bus to control the swinging speed of a wiper motor and drive a wiper mechanism to wipe rain on the windshield. The intelligent windshield wiper controller based on the fuzzy control technology has the core designed as the fuzzy controller, and the fuzzy controller is used for replacing the traditional PID (proportion integration differentiation) controller, thus the nonlinear signal of the rainfall sensor can be preferably processed, and the influence of the large-range variation of load parameters and nonlinear factors on a system can be overcome.

Description

technical field [0001] The invention relates to an automobile wiper system, in particular to an intelligent wiper controller. Background technique [0002] The wiper system is one of the important systems of the car. The traditional manual mechanical wiper system will distract the driver's attention during use. In rainy and snowy weather, it becomes an important hidden danger of traffic accidents. [0003] In the smart wiper system, the controller detects the amount of rain through the rain sensor, and then controls the swing speed of the wiper. When the smart wiper is in use, it can automatically keep the windshield clear without driver intervention, increasing driving safety. The system adopts fuzzy control. Although the traditional PID control has reliable performance and simple structure, it cannot overcome the influence of large-scale changes in load parameters and nonlinear factors on the system. With the improvement of fuzzy control theory and the maturity of fuzzy...

Claims

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Application Information

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IPC IPC(8): G05B13/04B60S1/04
Inventor 张朝祥王业兴陈芳闫金银许伟明左小五高甫邓春龙张昕高峰
Owner UNIV OF SHANGHAI FOR SCI & TECH
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