BATTERY SYSTEM FOR MONITORING A BATTERY
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Abstract
A locomotive, a battery system and a method for monitoring a battery are provided. The battery has a first plurality of cells electrically coupled in series to one another. The first plurality of cells includes a second plurality of cells and a third plurality of cells electrically coupled together at a node. The method includes calculating a first number of failed cells in the first plurality cells. The method further includes calculating a second number of failed cells in the second plurality cells and a third number of failed cells in the third plurality cells.
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Citations
19 Claims
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1. (canceled)
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2. (canceled)
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3. (canceled)
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4. (canceled)
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5. (canceled)
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6. (canceled)
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7. (canceled)
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8. (canceled)
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9. (canceled)
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10. A battery system, comprising:
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a battery having a first plurality of cells electrically coupled in series to one another between a first battery terminal and a second battery terminal, the first plurality of cells comprising a second plurality of cells and a third plurality of cells coupled together at a node, each cell of the first plurality of cells having a desired output voltage level during desired operation; and a battery monitor electrically coupled to the battery at the node and at the first and second battery terminals, the battery monitor configured to measure a first voltage level of the first plurality of cells of the battery when the first plurality of cells are not coupled to a load, the battery monitor further configured to measure a second voltage level at the node between the second plurality of cells and the third plurality of cells when the first plurality of cells are coupled to the load, the battery monitor further configured to calculate a first number of failed cells of the first plurality of cells based on the first voltage level, the desired output voltage level of each cell of the first plurality of cells and a number of cells in the first plurality of cells, the battery monitor further configured to calculate a second number of failed cells of the second plurality of cells based on the second voltage level, the desired output voltage level of each cell of the first plurality of cells and the first number of failed cells, and the battery monitor further configured to calculate a third number of failed cells of the third plurality of cells based on the second voltage level, the desired output voltage level of each cell of the first plurality of cells and the first number of failed cells. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A locomotive, comprising:
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an electrically powered traction motor; a battery configured to supply electrical power to the traction motor, the battery having a first plurality of cells electrically coupled in series to one another between a first battery terminal and a second battery terminal, the first plurality of cells comprising a second plurality of cells and a third plurality of cells coupled together at a node, each cell of the first plurality of cells having a desired output voltage level during desired operation; and a battery monitor electrically coupled to the battery at the node and at the first and second battery terminals, the battery monitor configured to measure a first voltage level of the first plurality of cells of the battery when the first plurality of cells are not coupled to a load, the battery monitor further configured to measure a second voltage level at the node between the second plurality of cells and the third plurality of cells when the first plurality of cells are coupled to the load, the battery monitor further configured to calculate a first number of failed cells of the first plurality of cells based on the first voltage level, the desired output voltage level of each cell of the first plurality of cells and a number of cells in the first plurality of cells, the battery monitor further configured to calculate a second number of failed cells of the second plurality of cells based on the second voltage level, the desired output voltage level of each cell of the first plurality of cells and the first number of failed cells, and the battery monitor further configured to calculate a third number of failed cells of the third plurality of cells based on the second voltage level, the desired output voltage level of each cell of the first plurality of cells and the first number of failed cells.
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19. A system for detecting and classifying a wheel of a rail vehicle traveling on a railway track comprising:
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a plurality of wheel detectors coupled to one rail of the railway track and configured to detect presence of the wheel and to generate signals representative thereof; and a processing system coupled to the wheel detectors and configured to receive and process the signals; wherein the processing system is configured to classify the wheel based on a speed independent classification value calculated based on the signals from the wheel detectors.
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Specification