An interlock device for measuring the sobriety of a potential vehicle operator is coupled to the starting mechanism of the vehicle. The interlock device includes a microprocessor controlled handset and base unit. The base unit encloses relays to preclude the starting mechanism from engaging if a predetermined acceptable threshold level of blood alcohol content has been exceeded. The relays receive a signal, through the base unit microprocessor, from the handset microprocessor which has calculated the blood alcohol content of a breath sample introduced into the handset by the vehicle operator. A breath sampling housing is enclosed within the handset in axial alignment with an intake port of the handset. A water filter and valve are positioned upstream from an electrochemical fuel cell. The fuel cell is coupled to the microprocessor. A pressure transducer measures the pressure of the breath sample. The handset microprocessor calculates a pressure offset through an algorithmic equation and applies the offset to the variable reading across the fuel cell to provide a normalized blood alcohol content measurement.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    VEHICLE SOBRIETY INTERLOCK DEVICE


    Weitere Titelangaben:

    FAHRZEUG-NÜCHTERNHEITSVERRIEGELUNGSVORRICHTUNG
    DISPOSITIF DE VERROUILLAGE ANTI-EBRIETE POUR VEHICULE


    Beteiligte:
    STEWART JEFFREY (Autor:in) / MCCLELLAND JAMES (Autor:in) / SMITH CHARLES E (Autor:in)

    Erscheinungsdatum :

    21.11.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



    VEHICLE SOBRIETY INTERLOCK SYSTEMS AND METHODS WITH VEHICLE WARM-UP SUPPORT

    NELSON AARON THEODORE | Europäisches Patentamt | 2019

    Freier Zugriff

    VEHICLE SOBRIETY INTERLOCK SYSTEMS AND METHODS WITH VEHICLE WARM-UP SUPPORT

    NELSON AARON THEODORE | Europäisches Patentamt | 2015

    Freier Zugriff

    Vehicle sobriety interlock systems and methods with vehicle warm-up support

    NELSON AARON THEODORE | Europäisches Patentamt | 2016

    Freier Zugriff

    Vehicle sobriety interlock systems and methods with vehicle warm-up support

    NELSON AARON THEODORE | Europäisches Patentamt | 2018

    Freier Zugriff

    VEHICLE SOBRIETY INTERLOCK SYSTEMS AND METHODS WITH VEHICLE WARM-UP SUPPORT

    NELSON AARON THEODORE | Europäisches Patentamt | 2022

    Freier Zugriff