Voltage detection apparatus
AssigneeKeihin Corporation
InventorsShingo Tsuchiya, Seiji Kamata
Life of this patent
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Abstract
In a voltage detection apparatus for detecting voltage of battery modules, it is possible to detect that a shut-off element performed operation in a certain one of a plurality of battery modules connected in parallel. The voltage detection apparatus detects voltage of the plurality of battery modules each including a shut-off element and connected in parallel with respect to a load, and decides whether the shut-off elements are operating based on the cell voltage in a state that the plurality of battery modules are disconnected from a power supply line by switching wares.
Claims6
A voltage detection apparatus which detects voltage of a plurality of battery modules, each of the plurality of battery modules having a shut-off element and being connected in parallel with respect to a load, the voltage detection apparatus comprises:
- a switching ware configured to set for each of the plurality of battery modules and connect each of the plurality of battery modules to a power supply line for the load;
- a cell voltage detecting circuit configured to detect voltage of a battery cell included in each of the plurality of battery modules in a state that each of the plurality of battery modules is disconnected from the power supply line by the switching ware;
- and
- a processor configured to decide whether the shut-off element of each of the plurality of battery modules is operating based on detection results of the cell voltage detecting circuit.
Dependencies are inferred from the claim text.