A control system for a mild hybrid vehicle is configured to detect whether a main contactor is open, the main contactor being connected between a primary battery system and a bi-directional direct current to direct current (DC-DC) converter and in response to detecting that the main contactor is open: command the DC-DC converter to operate in a boost mode to excite a motor-generator unit (MGU), after the excitation of the MGU has completed, command the DC-DC converter to operate in a buck mode, determine a previous voltage regulation feedback setpoint for the DC-DC converter, and control the DC-DC converter to maintain a voltage of the secondary battery system within a desired range by inserting a delay to a voltage control loop of the DC-DC converter such that the voltage control loop mimics a bandwidth of the MGU.


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    Titel :

    SELECTIVE RESPONSE CONTROL OF DC-DC CONVERTERS IN MILD HYBRID ELECTRIC VEHICLES


    Beteiligte:

    Erscheinungsdatum :

    22.03.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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