Channel Verification of Multiple Channels on One Chip
First Claim
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1. A battery monitor, having a plurality of channel inputs, comprising:
- a measurement system to generate measurement information from voltages present on the channel inputs,a plurality of channel drivers, each associated with a respective channel input that, when activated, alters a voltage appearing on the respective channel input, anda controller to cause the measurement system to activate a selected channel driver and, at a predetermined time after the selected channel driver is activated, generate second measurement information for the channel input associated with the selected channel driver.
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Abstract
A battery monitoring system and method are disclosed. A battery monitor compares data in parallel register files. If voltage deviation above a certain threshold is detected in one register file, the system generates an alert that a fault exists upstream in the system. In order to better detect errors, the system may intentionally alter the voltages on the batteries to be monitored.
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Citations
20 Claims
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1. A battery monitor, having a plurality of channel inputs, comprising:
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a measurement system to generate measurement information from voltages present on the channel inputs, a plurality of channel drivers, each associated with a respective channel input that, when activated, alters a voltage appearing on the respective channel input, and a controller to cause the measurement system to activate a selected channel driver and, at a predetermined time after the selected channel driver is activated, generate second measurement information for the channel input associated with the selected channel driver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of analyzing and managing operation of a battery monitor, comprising:
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performing a first voltage measurement for at least one input of the battery monitor; activating a channel driver of the battery monitor that alters a voltage at the input of the battery monitor, performing a second voltage measurement for the at least one input of the battery monitor at predetermined delay after activating the channel driver, wherein a comparison of the first voltage measurement to the second voltage measurement can indicate operational error of the battery monitor. - View Dependent Claims (13, 14, 15, 16)
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17. A battery monitor, having a plurality of channel inputs, comprising:
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means for generating first measurement information from a voltage present on channel inputs, means for altering a voltage appearing on the respective channel input, and means for causing the measurement system to activate a selected channel driver and, means for generating second measurement information, at a predetermined time after the altering means is activated, for the channel input associated with the selected channel driver. - View Dependent Claims (18, 19)
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20. A storage device storing program instructions that, when executed by a controller, cause the controller to:
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cause a measurement system to generate measurement information from voltages present on a plurality of channel inputs to a battery monitor, activate a selected channel driver of the battery monitor to alter a voltage present on a channel input associated with the channel driver, and at a predetermined time after the selected channel driver is activated, cause the measurement system to generate second measurement information for the channel input associated with the selected channel driver.
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Specification