Supplying of low-voltage on-board electrical systems of vehicles having an electric drive
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorsRaoul Heyne, Christian Metzger
Life of this patent
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Abstract
A charging station for a vehicle having an electric drive, wherein the charging station configured to charge a high-voltage energy storage of the vehicle, including an electrical high-voltage provision device, and an electrical high-voltage connection device for connecting the high-voltage provision device to the high-voltage energy storage of the vehicle, an electrical low-voltage provision device, and a separate low-voltage connection terminal for connection to a low-voltage on-board electrical system of the vehicle, wherein the low-voltage on-board electrical system is able to be supplied with electrical energy independently of the high-voltage connection device by way of the low-voltage connection terminal.
Claims9
A charging station for a vehicle having an electric drive, wherein the charging station is configured to charge a high-voltage energy storage of the vehicle, comprising:
- an electrical high-voltage provision device;
- an electrical high-voltage connection device for connecting the high-voltage provision device to the high-voltage energy storage of the vehicle;
- an electrical low-voltage provision device;
- a low-voltage connection terminal for connection to a low-voltage on-board electrical system of the vehicle, the low-voltage connection terminal separate from the electrical high-voltage connection device, wherein the low-voltage on-board electrical system is able to be supplied with electrical energy independently of the high-voltage connection device by way of the low-voltage connection terminal;
- and
- a transformer separate from the electrical high-voltage provision device,
- wherein the electrical low-voltage provision device is configured to be connected to an AC voltage source by way of the transformer,
- wherein the transformer is configured to transform a voltage of the AC voltage source into a suitable low voltage in order to supply the low-voltage connection terminal by way of the low-voltage provision device,
- wherein the electrical low-voltage provision device has an electrical voltage converter that is electrically connected to the electrical high-voltage provision device, and
- wherein the electrical low-voltage provision device is configured to supply the low-voltage connection terminal with electrical energy from the electrical high-voltage provision device by way of a redundant path that includes the electrical voltage converter and is separate from the transformer.
Dependencies are inferred from the claim text.