A tri-state electronic vehicle system control circuit comprises a plurality of 3-position switches, each of which is coupled to a dedicated pin on a wiring harness for coupling multiple portions of a combination vehicle such as a tractor-trailer combination. Each switch controls a device (e.g., brake lights, turn signal, etc.) and a data link that can be selectively toggled in a manner that permits data transmission without perceptibly affecting device function. Alternatively, two devices controlled by a given switch can be enabled by a single pin on the wiring harness. The tri-state switching circuitry thus doubles the capacity of the wiring harness to which it is applied.


    Access

    Download


    Export, share and cite



    Title :

    Tri-state trailer pigtail


    Contributors:
    FOSTER RICK (author)

    Publication date :

    2020-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60D Fahrzeugverbindungen , VEHICLE CONNECTIONS / 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 / H01R Elektrisch leitende Verbindungen , ELECTRICALLY-CONDUCTIVE CONNECTIONS / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / H05B ELECTRIC HEATING , Elektrische Heizung



    TRI-STATE TRAILER PIGTAIL

    FOSTER RICK | European Patent Office | 2020

    Free access

    Consolidated automotive pigtail connector and replacement parts kit

    BLOOM EARL / GILMAN SCOTT | European Patent Office | 2019

    Free access

    Consolidated Automotive Pigtail Connector and Replacement Parts Kit

    BLOOM EARL / GILMAN SCOTT | European Patent Office | 2019

    Free access


    Trailer access state detection system, traction trailer and method

    LI WEI / YAN RUNGANG / HUANG SHIXUN et al. | European Patent Office | 2024

    Free access