A motor vehicle electrical distribution system includes an upfitter power supply subsystem with overcurrent protection for tripping (opening) a solid-state relay when current drawn from a main electrical source by the upfitter subsystem impacts other priority electrical loads of the vehicle. Warnings/alerts are generated to inform the user (e.g., driver) of the tripping events, which may include real-time graphing of a recent history of events. In order to restore power to the upfitter subsystem, a voltage supplied by a supplemental battery (i.e., vehicle start-up battery) to the upfitter subsystem is monitored. If the voltage stabilizes then a voltage from the main electrical source is intentionally dropped to the stabilized value and the solid-state relay is re-closed. Then the main voltage is ramped back up to its nominal value. An automatic reset time may be added to delay the reclosing if the solid-state relay has been operated excessively.


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    Title :

    VEHICULAR ELECTRICAL SYSTEM SHARING PRIMARY POWER WITH UPFIT EQUIPMENT


    Contributors:

    Publication date :

    2024-09-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H01H Elektrische Schalter , ELECTRIC SWITCHES



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