Method for operating an electrical energy store
AssigneeRobert Bosch GmbH
InventorsFrank Gottwald, Rainer Heinrich Hoerlein, Thomas Dufaux
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Abstract
The invention relates to a method for operating an electrical energy store, comprising a storage cell for storing electrical energy and a control unit, wherein a safety switch is provided which is designed to interrupt an electrical line of the electrical energy store, wherein a current flowing through the electrical line is detected and an actuation of the safety switch only occurs if the current is below a predefinable threshold value.
Claims7
A method for operating an electrical energy store (12), which comprises a storage cell (14) for storing electrical energy and a control unit (15), the method comprising:
- detecting a current (24) flowing through an electrical line of the electrical energy store (12);
- estimating an exceedance time once the current (24) exceeds a pre-threshold value (23);
- interrupting, via a safety switch (16), the electrical line of the electrical energy store (12) when the current (24) flowing through the electrical line is below a predefined threshold value (22), wherein the pre-threshold value (23) is smaller than the predefined threshold value (22);
- and
- activating the safety switch (16) when the estimated exceedance time, in which the current (24) is above the predefined threshold value (22), exceeds a predefined tolerance time, wherein the exceedance time is not longer than the tolerance time.
A non-transitory, computer-readable medium containing instructions that when executed by a computer cause the computer to control an electrical energy store (12) having a storage cell (14) by:
- determining a current (24) flowing through an electrical line of the electrical energy store (12);
- estimating an exceedance time when the current (24) exceeds a pre-threshold value (23);
- interrupting, via a safety switch (16), the electrical line of the electrical energy store (12) when the current (24) flowing through the electrical line is below a predefined threshold value (22) program is run on a computation unit, wherein the pre-threshold value (23) is smaller than the predefined threshold value (22);
- and
- activating the safety switch (16) when the estimated exceedance time, in which the current (24) is above the predefined threshold value (22), exceeds a predefined tolerance time, wherein the exceedance time is not longer than the tolerance time.
Dependencies are inferred from the claim text.