The invention discloses a speed reduction display device of an automobile, and relates to the technical field of automobile manufacturing. The speed reduction display device comprises a speed sensor for detecting the speed of the automobile. Electric speed signals detected by the speed sensor are input into an analog quantity input I/O port of a single-chip microcontroller MCU. The single-chip microcontroller MCU is used for detecting whether the difference between two electric speed signals collected in two adjacent sampling periods exceeds a preset value or not, wherein the later electric speed signal is lower than the former electric speed signal; when the detected difference exceeds the preset value, the single-chip microcontroller MCU outputs high-level signals; and automobile tail lights are controlled by switching signals output by a digital quantity output I/O port of the single-chip microcontroller MCU to be turned on. The automobile speed reduction display device has the beneficial effects of being high in reliability, good in safety performance and the like.


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    Title :

    Speed reduction display device of automobile


    Contributors:

    Publication date :

    2015-10-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



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