Split charge battery start assist

An electrical system of a vehicle includes a first battery, a second battery, a first switch electrically connected in series between the first battery and the second battery, an external connection point, and a second switch electrically connected in series between the second battery and the extern...

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Bibliographische Detailangaben
Hauptverfasser: Salter, Stuart C, Spoto, Anthony Thomas, Ansbacher, Todd, Collins, Alasdair, Celinske, David
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:An electrical system of a vehicle includes a first battery, a second battery, a first switch electrically connected in series between the first battery and the second battery, an external connection point, and a second switch electrically connected in series between the second battery and the external connection point. The system and a method of operating the system include determining that the first battery will need assistance to start an engine of the vehicle, opening the second switch in response to a state of charge of the second battery decreasing below a charge threshold, and closing the first switch for the second battery to assist the first battery to crank the engine for starting.