Power Supply Device for an Electrically Operable Vehicle and Charging Method

摘要

The disclosure relates to a power supply device for an electrically operable vehicle having an electric drive motor. The power supply device comprises an electric energy accumulator device, a range-extender with an internal combustion engine and a generator producing alternating current. The generator is mechanically connectable to the internal combustion engine, and the energy accumulator device is configured to be charged during driving with the alternating current from the generator. The energy accumulator device comprises several power supply connections on which respectively one of several controllable potentials can be provided, and several power supply branches having several serially connected power cell modules. Several power supply branches are interconnected on one end to the neutral point and each power supply connection is connectable to one end of a power supply branch.

主权项

1. An energy supply device for an electrically operated vehicle having an electric drive motor, comprising:
an electrical energy storage device; and a range extender having an internal combustion engine and a generator configured to generate alternating current, the generator can be mechanically coupled or is mechanically coupled to the internal combustion engine, wherein the energy storage device is configured to be charged during a driving mode with alternating current from the generator, wherein the energy storage device has a plurality of energy supply connections, at each of which one of several controllable potentials can be provided, and a plurality of energy supply branches each with a plurality of energy cell modules which are connected in series, wherein the plurality of energy supply branches are interconnected at one end to form a star point and each energy supply connection can be connected or is connected to one end of an energy supply branch, and wherein each energy cell module of the plurality of energy cell modules has an electrochemical cell and a controllable coupling device configured to electrically couple the electrochemical cell into its energy supply branch.