An auto stop-start equipped vehicle power management system includes a primary power source supplying energy to an electrical starter to crank a vehicle engine and a secondary power source coupled in parallel to the primary power source. The secondary power source supplies energy to electric loads during an engine auto stop-start operation. The electrical loads maintain vehicle subsystem functionality during the engine auto stop-start operation. The energy supplied to the electrical loads is current limited during the engine auto stop-start operation. A controllable switch decouples the secondary power source from the primary power source and starter motor during the engine auto stop-start operation. Operating parameters of the electrical loads are monitored during the engine auto stop-start operation. If a respective operating parameter threshold associated with the electrical loads is exceeded during the engine auto stop-start operation, then the vehicle engine is automatically restarted and the controllable switch is subsequently closed.


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    Title :

    APPARATUS AND METHOD TO MAXIMIZE VEHICLE FUNCTIONALITY AND FUEL ECONOMY WITH IMPROVED DRIVABILITY DURING ENGINE AUTO STOP-START OPERATIONS


    Contributors:

    Publication date :

    2016-08-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



    Apparatus and method to maximize vehicle functionality and fuel economy with improved drivability during engine auto stop-start operations

    KHAFAGY HAFIZ S / PEBLEY KIRK / BOUSE WILLIAM J et al. | European Patent Office | 2017

    Free access


    Fuel Economy and Cold-Start Drivability with Some Recent-Model Cars

    Ingamells, J. C. | SAE Technical Papers | 1974



    An Engine Start/Stop System for Improved Fuel Economy

    Nedungadi, Ashok / Surampudi, Bapiraju / Taspinar, Ertugrul et al. | SAE Technical Papers | 2007