The invention relates to a method (10) for operating a motor vehicle with an electric power supply that has at least one semiconductor switch which is loaded with load events on the basis of at least one load-influencing factor during the operation of the motor vehicle and for which a service life/load relationship (21) is specified, said relationship indicating a nominal service life (22) for a nominal load (23). A nominal load component which corresponds to at least one point in time (24-26) within the nominal service life (22) can be ascertained for the at least one point in time (24-26) using the relationship.; For the at least one point in time (24-26), the method (10) has the steps of ascertaining (11-16) an actual load of the at least one semiconductor switch on the basis of a determination of prior load events at the at least one point in time (24-26), ascertaining the nominal load component corresponding to the at least one point in time (24-26) using the specified service life/load relationship (21), comparing (17) the actual load and the nominal load component at the at least one point in time, and reducing the at least one load-influencing factor if the actual load exceeds the nominal load component at the at least one point in time (24-26) by more than a specified tolerance value. The invention likewise relates to means for implementing the method.


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    Title :

    Method for operating an electrified motor vehicle and means for implementing said method


    Contributors:

    Publication date :

    2015-10-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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