System and method for rearview mirror control based on ripples

Abstract

The invention discloses a system for rearview mirror control based on ripples. The system comprises a rearview mirror control switch, a single-chip microcomputer, a motor driving module, a rearview mirror and a ripple detection counting module. The rearview mirror control switch is connected with the single-chip microcomputer, and the motor driving module is connected with a motor arranged in the rearview mirror. The motor driving module and the ripple detection counting module are integrated to a ripple detection counting and motor driving integrated circuit. A voltage modulation circuit and a control register are arranged in the ripple detection counting and motor driving integrated circuit, the voltage modulation circuit outputs supply voltage, the ripple detection counting module is in bi-directional connection with the control register, the control register is in output connection with the motor driving module, and the single-chip microcomputer is in communication connection with the control register through an SPI bus. The invention further discloses a method for rearview mirror control based on the ripples. According to the technical scheme, the problems of large control deviation and poor universality of an existing rearview mirror control technology are solved.

Description

technical field [0001] The invention relates to an automobile rearview mirror, in particular to a ripple-based rearview mirror control system and method. Background technique [0002] The purpose of the car rearview mirror is to achieve the rear view range expected by the driver. At present, the rearview mirror system is mainly divided into three categories: the first type of manual rearview mirror, which needs to manually adjust the angle of the rearview mirror; the second type of conventional electric rearview mirror, with a built-in motor, the switch is turned on, and the motor is energized to rotate to drive the rearview mirror. The mirror rotates to adjust the angle of the rearview mirror. This type of rearview mirror has the largest number of reserves; the third type of built-in sensor rearview mirror, the sensor can output angle or position signals, which is convenient for the controller to monitor and automatically adjust the angle of the rearview mirror. [0003] T...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a ripple-based rearview mirror control system and method, which can solve the problems of large control deviation and poor versatility of the existing rearview mirror control technology

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