Method for detecting abnormality of temperature sensors, and power supply apparatus
First Claim
1. A method for detecting an abnormality of a plurality of temperature sensors provided to an assembled battery including a plurality of cells, comprising:
- a first step of determining whether or not charging or discharging of said assembled battery is performed;
a second step of determining a deviation of output values of said plurality of temperature sensors at a determination time point; and
a third step of determining an output fluctuation range for each of said plurality of temperature sensors in a prescribed determination period.
1 Assignment
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Accused Products
Abstract
A power supply apparatus includes an assembled battery including a plurality of cells, a plurality of temperature sensors sensing temperatures of the plurality of cells, respectively, a current sensor sensing a current flowing through the assembled battery, and a state monitoring unit and an abnormality detecting apparatus that are a detecting unit of detecting an abnormality of the plurality of temperature sensors. The detecting unit makes a notification of an abnormality, when charging or discharging of the assembled battery is performed and on a basis of a plurality of detections of the deviation being greater than a first prescribed value and the output fluctuation range being smaller than a second prescribed value.
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Citations
6 Claims
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1. A method for detecting an abnormality of a plurality of temperature sensors provided to an assembled battery including a plurality of cells, comprising:
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a first step of determining whether or not charging or discharging of said assembled battery is performed;
a second step of determining a deviation of output values of said plurality of temperature sensors at a determination time point; and
a third step of determining an output fluctuation range for each of said plurality of temperature sensors in a prescribed determination period. - View Dependent Claims (2, 3)
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4. A power supply apparatus, comprising:
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an assembled battery including a plurality of cells;
a plurality of temperature sensors sensing temperatures of said plurality of cells, respectively;
a current sensor sensing a current flowing through said assembled battery; and
a detecting unit detecting an abnormality of said plurality of temperature sensors;
whereinsaid detecting unit detects the abnormality of said plurality of temperature sensors based on a first determination result of determining whether or not charging or discharging of said assembled battery is performed, a second determination result of determining a deviation of output values of said plurality of temperature sensors at a determination time point, and a third determination result of determining an output fluctuation range for each of said plurality of temperature sensors in a prescribed determination period. - View Dependent Claims (5, 6)
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Specification