Battery module with alarm line
First Claim
1. A battery module for a battery system, comprising:
- two terminals configured to be electrically connected to the battery system;
a battery string configured to connect the two terminals to one another, the battery string including a plurality of battery cells connected in series and/or in parallel with the battery string;
a plurality of battery monitoring circuits, each battery monitoring circuit being connected to one battery cell in the plurality of battery cells via an electrical connection, wherein at least one battery monitoring circuit in the plurality of battery monitoring circuits is configured to apply an alarm signal to an alarm line in response to detecting that the one battery cell in the plurality of battery cells is in a critical state; and
a battery module circuit connected to each battery monitoring circuit in the plurality of battery monitoring circuits via the alarm line that is connected to one input of the battery module circuit and to each battery monitoring circuit in the plurality of battery monitoring circuits, the battery module circuit being configured to bridge the battery module via the two terminals upon receiving the alarm signal to disconnect the plurality of battery cells from any load in response to receiving the alarm signal from any battery monitoring circuit in the plurality of battery monitoring circuits.
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Accused Products
Abstract
A battery module for a battery system includes two terminals, via which the battery module can be electrically connected to the battery system. Furthermore, the battery module has a battery string, which connects the two terminals to one another and has at least one battery cell connected in series and/or in parallel with the battery string. The battery module comprises a battery module circuit, which is configured, upon receiving an alarm signal, to bridge the battery module via the terminals thereof. The at least one battery cell is connected to a monitoring circuit associated with the battery cell. The monitoring circuit is connected to an alarm line via an electrical connection. The alarm line is connected to an input of the battery module circuit.
27 Citations
11 Claims
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1. A battery module for a battery system, comprising:
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two terminals configured to be electrically connected to the battery system; a battery string configured to connect the two terminals to one another, the battery string including a plurality of battery cells connected in series and/or in parallel with the battery string; a plurality of battery monitoring circuits, each battery monitoring circuit being connected to one battery cell in the plurality of battery cells via an electrical connection, wherein at least one battery monitoring circuit in the plurality of battery monitoring circuits is configured to apply an alarm signal to an alarm line in response to detecting that the one battery cell in the plurality of battery cells is in a critical state; and a battery module circuit connected to each battery monitoring circuit in the plurality of battery monitoring circuits via the alarm line that is connected to one input of the battery module circuit and to each battery monitoring circuit in the plurality of battery monitoring circuits, the battery module circuit being configured to bridge the battery module via the two terminals upon receiving the alarm signal to disconnect the plurality of battery cells from any load in response to receiving the alarm signal from any battery monitoring circuit in the plurality of battery monitoring circuits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A battery comprising:
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a battery module including two terminals configured to be electrically connected to a battery system, a battery string configured to connect the two terminals to one another, the battery string including a plurality of battery cells connected in series and/or in parallel with the battery string, a plurality of battery monitoring circuits, each battery monitoring circuit being connected to one battery cell in the plurality of battery cells via an electrical connection, wherein at least one battery monitoring circuit in the plurality of battery monitoring circuits is configured to apply an alarm signal to an alarm line in response to detecting that the one battery cell in the plurality of battery cells is in a critical state, and a battery module circuit connected to each battery monitoring circuit in the plurality of battery monitoring circuits via the alarm line that is connected to one input of the battery module circuit and to each battery monitoring circuit in the plurality of battery monitoring circuits, the battery module circuit being configured to bridge the battery module via the two terminals upon receiving the alarm signal to disconnect the plurality of battery cells from any load in response to receiving the alarm signal from any battery monitoring circuit in the plurality of battery monitoring circuits.
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11. A motor vehicle comprising:
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a drive system; and a battery module connected to the drive system, the battery module including; two terminals configured to be electrically connected to a battery system, a battery string configured to connect the two terminals to one another, the battery string including a plurality of battery cells connected in series and/or in parallel with the battery string, a plurality of battery monitoring circuits, each battery monitoring circuit being connected to one battery cell in the plurality of battery cells via an electrical connection, wherein at least one battery monitoring circuit in the plurality of battery monitoring circuits is configured to apply an alarm signal to an alarm line in response to detecting that the one battery cell in the plurality of battery cells is in a critical state, and a battery module circuit connected to each battery monitoring circuit in the plurality of battery monitoring circuits via the alarm line that is connected to one input of the battery module circuit and to each battery monitoring circuit in the plurality of battery monitoring circuits, the battery module circuit being configured to bridge the battery module via the two terminals upon receiving the alarm signal to disconnect the plurality of battery cells from the drive system in response to receiving the alarm signal from any battery monitoring circuit in the plurality of battery monitoring circuits.
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Specification