A method for the online adaptation of at least one characteristic of a hybrid vehicle, comprising a hybridized drive train with an electric drive that can be supplied with electricity from an electrical energy storage arrangement, wherein the at least one characteristic is used for the selection of an operating mode and/or for determining an operating point of the hybridized drive train of the hybrid vehicle, comprising the steps of: - establishing a plurality of partition boundaries for dividing a range of states of charge of the energy storage arrangement into a plurality of regions (A-E), wherein at least one of the partition boundaries can be variably determined during the operation of the vehicle; and - predetermining a profile (10, 11) of the at least one characteristic depending on a state of charge of the energy storage arrangement, wherein the values of the at least one characteristic at the partition boundaries are fixedly predetermined; and - online adaptation of the at least one characteristic in the case of a shift of the at least one variable partition boundary, wherein the at least one characteristic is shifted and scaled (S4, S5) taking into account the fixedly predetermined values at the partition boundaries and corresponding to the at least one shifted variable partition boundary, characterized a1) in that at least one of the partition boundaries is adapted continuously during the operation of the vehicle depending on information characterizing a segment of route ahead; and/or a2) in that at least one of the partition boundaries is continuously adapted during the operation of the vehicle depending on topographical data of a segment of route ahead indicating a decline profile and an incline profile of the segment of route ahead; and in that the at least one characteristic comprises a characteristic b1) that specifies an upper boundary for the fuel mass throughput depending on the state of charge of the energy storage arrangement; and/or b2) that specifies a nominal performance of the electrical energy storage arrangement depending on the state of charge of the energy storage arrangement. - establishing a plurality of partition boundaries for dividing a range of states of charge of the energy storage arrangement into a plurality of regions (A-E), wherein at least one of the partition boundaries can be variably determined during the operation of the vehicle; and - predetermining a profile (10, 11) of the at least one characteristic depending on a state of charge of the energy storage arrangement, wherein the values of the at least one characteristic at the partition boundaries are fixedly predetermined; and - online adaptation of the at least one characteristic in the case of a shift of the at least one variable partition boundary, wherein the at least one characteristic is shifted and scaled (S4, S5) taking into account the fixedly predetermined values at the partition boundaries and corresponding to the at least one shifted variable partition boundary, characterized a1) in that at least one of the partition boundaries is adapted continuously during the operation of the vehicle depending on information characterizing a segment of route ahead; and/or a2) in that at least one of the partition boundaries is continuously adapted during the operation of the vehicle depending on topographical data of a segment of route ahead indicating a decline profile and an incline profile of the segment of route ahead; and a1) in that at least one of the partition boundaries is adapted continuously during the operation of the vehicle depending on information characterizing a segment of route ahead; and/or a2) in that at least one of the partition boundaries is continuously adapted during the operation of the vehicle depending on topographical data of a segment of route ahead indicating a decline profile and an incline profile of the segment of route ahead; and in that the at least one characteristic comprises a characteristic b1) that specifies an upper boundary for the fuel mass throughput depending on the state of charge of the energy storage arrangement; and/or b2) that specifies a nominal performance of the electrical energy storage arrangement depending on the state of charge of the energy storage arrangement. b1) that specifies an upper boundary for the fuel mass throughput depending on the state of charge of the energy storage arrangement; and/or b2) that specifies a nominal performance of the electrical energy storage arrangement depending on the state of charge of the energy storage arrangement.