Charging device for an energy store and method for operating such a charging device
First Claim
1. A charging device for an energy store comprising a lithium ion battery in an electric vehicle, wherein the charging device comprises:
- a circuit for setting the charging device to a fully charging mode or a parked charging mode,wherein the charging device is configured to produce a fully charged state of the energy store in the fully charging mode and to produce a parked charge state of the energy store in the parked charging mode,wherein the parked charge state corresponds to a specified reduced charge state of the energy store, anda controller configured to;
determine whether the charging device is set to the fully charging mode or the parked charging mode,determine a current charged state of the energy store, andin response to determining that the charging device is set to the parked charging mode;
comparing the current charged state of the energy store to the specified reduced charge state corresponding to the parked charging mode,in response to determining that the current charged state of the energy store is below the specified reduced charge state corresponding to the parked charging mode, automatically initiating a charging of the energy store from a power supply network, andin response to determining that the current charged state of the energy store is above the specified reduced charge state corresponding to the parked charging mode, automatically initiating an extraction of energy from the energy store and feeding of the extracted energy back into the power supply network.
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Accused Products
Abstract
A charging device for an energy store, e.g., a lithium ion battery in an electric vehicle, may include a circuit for adjusting the charging device in a full charging mode or a parked charging mode, wherein the charging device is set up for producing a fully charged state of the energy store in full charging mode, and for producing a parked charged state of the energy store in parked charging mode, wherein the parked charging state corresponds to a reduced charge state of the energy store. Methods for operating such a charging device, and an electric vehicle having such a charging device, may also be provided.
21 Citations
13 Claims
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1. A charging device for an energy store comprising a lithium ion battery in an electric vehicle, wherein the charging device comprises:
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a circuit for setting the charging device to a fully charging mode or a parked charging mode, wherein the charging device is configured to produce a fully charged state of the energy store in the fully charging mode and to produce a parked charge state of the energy store in the parked charging mode, wherein the parked charge state corresponds to a specified reduced charge state of the energy store, and a controller configured to; determine whether the charging device is set to the fully charging mode or the parked charging mode, determine a current charged state of the energy store, and in response to determining that the charging device is set to the parked charging mode; comparing the current charged state of the energy store to the specified reduced charge state corresponding to the parked charging mode, in response to determining that the current charged state of the energy store is below the specified reduced charge state corresponding to the parked charging mode, automatically initiating a charging of the energy store from a power supply network, and in response to determining that the current charged state of the energy store is above the specified reduced charge state corresponding to the parked charging mode, automatically initiating an extraction of energy from the energy store and feeding of the extracted energy back into the power supply network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for operating a charging device for an energy store comprising a lithium ion battery in an electric vehicle, the method comprising:
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switching the charging device by means of a circuit into a fully charging mode or a parked charging mode, producing in the fully charging mode a fully charged state by the charging device, and producing in the parked charging mode a parked charge state of the energy store, wherein the parked charge state corresponds to a specified reduced charge state of the energy store, determining, by a controller, whether the charging device is set to the fully charging mode or the parked charging mode, determining, by the controller, a current charged state of the energy store, and in response to determining that the charging device is set to the parked charging mode; comparing, by the controller, the current charged state of the energy store to the specified reduced charge state corresponding to the parked charging mode, in response to determining that the current charged state of the energy store is below the specified reduced charge state corresponding to the parked charging mode, automatically initiating, by the controller, a charging of the energy store from a power supply network, and in response to determining that the current charged state of the energy store is above the specified reduced charge state corresponding to the parked charging mode, automatically initiating, by the controller, an extraction of energy from the energy store and feeding of the extracted energy back into the power supply network.
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13. An electric vehicle having a charging device comprising:
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a circuit for setting the charging device to a fully charging mode or a parked charging mode, wherein the charging device is configured to produce a fully charged state of an energy store in the fully charging mode and to produce a parked charge state of the energy store in the parked charging mode, wherein the parked charge state corresponds to a specified reduced charge state of the energy store, and a controller configured to; determine whether the charging device is set to the fully charging mode or the parked charging mode, determine a current charged state of the energy store, and in response to determining that the charging device is set to the parked charging mode; comparing the current charged state of the energy store to the specified reduced charge state corresponding to the parked charging mode, and in response to determining that the current charged state of the energy store is below the specified reduced charge state corresponding to the parked charging mode, automatically initiating a charging of the energy store from a power supply network, and in response to determining that the current charged state of the energy store is above the specified reduced charge state corresponding to the parked charging mode, automatically initiating an extraction of energy from the energy store and feeding of the extracted energy back into the power supply network.
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Specification