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.
Method for operating an electrified motor vehicle and means for implementing said method
28.10.2015
Patent
Elektronische Ressource
Englisch
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