An ignition resistance test circuit for an airbag is disclosed. The test circuit includes (i) an ignition resistor, (ii) a current source circuit for providing a test current for testing the ignition resistor, (iii) a current drain circuit for receiving the test current, (iv) a differential amplification circuit for differentially amplifying the voltage at the two ends of the ignition resistor, thus obtaining a voltage drop after differential amplification, and (v) an analogue-to-digital conversion circuit for performing analogue-to-digital conversion of the differentially amplified voltage drop to provide to a control unit, enabling the control unit to determine the resistance value of the ignition resistor based on the voltage drop and the test current. An airbag controller and an airbag is also disclosed.


    Access

    Download


    Export, share and cite



    Title :

    Ignition Resistance Test Circuit, Airbag Controller, and Airbag


    Contributors:

    Publication date :

    2023-11-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    AIRBAG IGNITION DEVICE

    IWAI KENTA / KOMATSU KAZUHIRO / ENOMOTO DAISUKE et al. | European Patent Office | 2018

    Free access

    AIRBAG DEVICE, VEHICLE SEAT, AND IGNITION METHOD FOR AIRBAG DEVICE

    NAKAJIMA YUTAKA / ITO YOSHIKI | European Patent Office | 2023

    Free access

    Motorcycle airbag controller

    CAO PING | European Patent Office | 2015

    Free access

    Ignition strategy for side airbag of vehicle, airbag and vehicle

    YUAN JIE | European Patent Office | 2021

    Free access

    AIRBAG DEVICE, VEHICLE SEAT, AND IGNITION METHOD FOR AIRBAG DEVICE

    NAKAJIMA YUTAKA / ITO YOSHIKI | European Patent Office | 2022

    Free access