Battery string monitoring system
First Claim
1. A monitoring system, comprising:
- a monitoring circuit electrically connected to each of a plurality of distinct contiguous subsets of a plurality of batteries connected in series, the monitoring circuit comprising;
at least one test signal generation circuit which generates a test signal and applies the test signal to each subset of the plurality of batteries; and
at least one response measurement circuit which measures a response of each subset of the plurality of batteries to the test signal; and
a control circuit identifying at least one of the subsets of the plurality of batteries as including a failing battery based on the response of each subset of the plurality of batteries.
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Accused Products
Abstract
Aspects of the present disclosure involve a monitoring system for a plurality of batteries connected in series. In one example, the monitoring system includes a monitoring circuit to be coupled across each of a plurality of distinct contiguous subsets of the batteries as a unit. The monitoring circuit includes at least one test signal generation circuit to generate a test signal and apply the test signal to each subset of the batteries, and at least one response measurement circuit to measure a response of each subset of the batteries to the test signal. The monitoring system also includes a control circuit to identify at least one of the subsets of the batteries as including a failing battery based on the measured response of each subset of the batteries.
204 Citations
13 Claims
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1. A monitoring system, comprising:
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a monitoring circuit electrically connected to each of a plurality of distinct contiguous subsets of a plurality of batteries connected in series, the monitoring circuit comprising; at least one test signal generation circuit which generates a test signal and applies the test signal to each subset of the plurality of batteries; and at least one response measurement circuit which measures a response of each subset of the plurality of batteries to the test signal; and a control circuit identifying at least one of the subsets of the plurality of batteries as including a failing battery based on the response of each subset of the plurality of batteries. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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receiving, via a processor, a plurality of N voltage signals, wherein each voltage signal in the plurality of N voltage signals represents a respective voltage across a respective battery string subset of a plurality of battery string subsets making up a battery string, the battery string comprising M batteries, where M is greater than N; performing, via the processor, an analysis on the plurality of N voltage signals; identifying, based on the analysis, one of a failing battery in the battery string and a failing battery string subset; and generating a notification for a user to inspect the one of a failing battery in the battery string and a failing battery string subset.
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8. A battery monitoring system, comprising:
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a processor; a test signal generator; a signal response receiver; and a plurality of battery connections, wherein; each battery connection in the plurality of battery connections is connected to a respective subset in a battery string; the test signal generator generates a test signal and applies the test signal to each of the respective subsets via the plurality of battery connections; the signal response receiver receives a response from each of the respective subsets in response to the test signal, to yield a plurality of responses; and the processor identifies an error in the battery string based on the plurality of responses. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification