A control system for rapid discoloration of ec lens when reversing

Abstract

The present invention proposes a control system for rapid discoloration of EC lenses when reversing, including EC lenses, an MCU module, a reversing signal detection module, a control conversion module, an EC mirror control voltage module, and a voltage reversing module. When the module detects the reversing signal, the reversing signal detection module sends the reversing signal to the MCU module, and the MCU module controls the output connection voltage of the control transformation module and acts on the EC mirror control voltage module, and the EC mirror control voltage module performs the received voltage Adjust the output to low voltage and high current and pass it to the voltage reversing module. The voltage reversing module controls the polarity reversal of the low voltage and high current and applies it to the EC lens. After 1 second, the MCU module controls the voltage reversing module to disconnect the electrical connection with the EC lens. , The EC lens changes rapidly from the state of the lowest reflectivity to the state of the highest reflectivity, and the time from detecting the reversing signal to completing the rapid discoloration of the EC lens is within 2 seconds.

Description

technical field [0001] The invention relates to the field of EC lens control, in particular to a control system for rapid discoloration of EC lenses when reversing. Background technique [0002] At present, the EC lenses for cars on the market all have the function of changing color quickly when reversing. They are usually implemented through the following schemes. First, actively detect the reversing signal. Once switched to the reversing state, even if the EC mirror is currently in the lowest reflectivity state, the EC mirror can be quickly switched to a high reflectivity state. EC mirror is a kind of electrochromic material. Once the voltage is applied, the material starts to change color and the reflectivity decreases; once the applied voltage is removed, the material starts a reverse process and returns to the state of no color change. At this time, the reflectivity is the highest. The EC mirror is an extremely slow responding component. In order to speed up the time ...

AI Technical Summary

Problems solved by technology

This control method takes a long time, and the direction of automobile development is more comfortable, safer, and more intelligent. Obviously, there is still a huge room for improvement in this design. Therefore, an EC lens that can quickly change color when reversing is needed Advanced control system, thereby reducing the time spent on discoloration of the EC lens, and giving the driver a more comfortable driving experience

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