CHARGING SYSTEM FOR ELECTRIC VEHICLES
First Claim
1. Charging system for electric vehicles, having a grid charging stage (12) that can be connected to an alternating current grid (10), by way of a connection point, on the input side and has an AC/DC inverter (14), having a preferably microprocessor-assisted control device (38) for monitoring a charging process, and having at least one charging connector (24) on the output side that can be temporarily connected with a vehicle battery (26), wherein a buffer battery (16) having a significantly greater charging capacity as compared with the vehicle battery (26) is connected with the grid charging stage (12), wherein a quick-charging stage (22) that comprises the control device (38) and a DC/DC inverter (44) and can be temporarily connected with the vehicle battery (26) on the output side, by way of the charging connector (24), is connected with the buffer battery (16), and wherein the buffer battery (16) can furthermore be connected to the alternating current grid (10), on the output side, by way of a return stage (46) that has a DC/AC inverter (50).
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Abstract
The invention relates to a charging system for electric vehicles. The charging system comprises a grid power stage (12) comprising an AC/DC inverter can be connected on an input side via a connection point to an alternating current grid (10), a control device (38) for monitoring a charging process, and at least one charging connection (24) on an output side, the latter being able to be temporarily connected to a vehicle battery (26). A characteristic of the invention is that a buffer battery (16) having a significantly higher charge capacity than the vehicle battery (26) is connected to the grid charging stage (12). A rapid charging stage (22) comprising the control device (38) and a DC/DC inverter (44) that can be temporarily connected to a vehicle battery (26) on the output side by means of the charging connection (24) is connected to the buffer battery (16). The buffer battery (16) can further be connected to a charging location (52) on the alternating current grid (10) on the output side by means of a backcharging stage (46) comprising a switching unit (48) and a DC/AC inverter (50).
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Citations
17 Claims
- 1. Charging system for electric vehicles, having a grid charging stage (12) that can be connected to an alternating current grid (10), by way of a connection point, on the input side and has an AC/DC inverter (14), having a preferably microprocessor-assisted control device (38) for monitoring a charging process, and having at least one charging connector (24) on the output side that can be temporarily connected with a vehicle battery (26), wherein a buffer battery (16) having a significantly greater charging capacity as compared with the vehicle battery (26) is connected with the grid charging stage (12), wherein a quick-charging stage (22) that comprises the control device (38) and a DC/DC inverter (44) and can be temporarily connected with the vehicle battery (26) on the output side, by way of the charging connector (24), is connected with the buffer battery (16), and wherein the buffer battery (16) can furthermore be connected to the alternating current grid (10), on the output side, by way of a return stage (46) that has a DC/AC inverter (50).
Specification