An auxiliary vehicle lamp operation system that detects interruption of DC current flow by a PIC microprocessor, which is Hall Effect device, based upon a decrease in the magnetic flow to a failing dim headlight bulb which, then, activates a power width modulation transistor which, in turn, activates an N channel power MOSFET, through which the microprocessor pulses the output thereof at approximately a 50% duty cycle to the bright headlamp bulb, permitting illumination output of the bright headlamp approximately the same as normal output of the dim headlight bulb. Upon detection of the failing dim headlight bulb, a visual indicator is provided by at least 3 one-quarter second flashes of the dim headlight bulb. Activation of the bright headlamp switch provides a normal rate of current to the bright headlamp bulb regardless of the detection of interruption of the magnetic field of current flow to the dim headlight bulb.


    Access

    Download


    Export, share and cite



    Title :

    Auxiliary vehicle lamp operation system


    Contributors:

    Publication date :

    2016-03-01


    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



    Vehicle steering auxiliary vehicle lamp system

    LU XUN | European Patent Office | 2015

    Free access

    Vehicle auxiliary lamp unit

    NANTAIS JASON / CONTARDI MARK / PRISBY CHRISTOPHER et al. | European Patent Office | 2016

    Free access

    AUXILIARY SIGNAL LAMP FOR VEHICLE

    ICHIZONO YUICHI | European Patent Office | 2019

    Free access

    AUXILIARY BRAKE LAMP OF VEHICLE

    LEE HAN SHIN | European Patent Office | 2023

    Free access

    Brake lamp and vehicle auxiliary driving system

    GAO QINGSONG / LI XINGNAN / CHEN WENMIAO et al. | European Patent Office | 2021

    Free access