A vehicle is disclosed comprising a pre-charge circuit, including a resistor, that selectively connects a traction battery to an electrical impedance. A controller is programmed to inhibit pre-charging for an amount of time when a predetermined number of pre-charge cycles have occurred within a preceding predetermined period of time. The predetermined number of pre-charge cycles may be based on a voltage or current magnitude across the resistor during the previous pre-charge cycles. The predetermined number of times may be modified based on prior successful and failed pre-charge cycles. A method of limiting a temperature increase of a pre-charge resistor is disclosed comprising counting a number of prior pre-charge cycles and inhibiting pre-charging when the number of prior pre-charge cycles within the preceding period of time exceeds a threshold.


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    Title :

    Pre-charge quick key cycling protection


    Contributors:

    Publication date :

    2018-03-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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