Control apparatus, control method, power supply system, and electric-powered vehicle
First Claim
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1. A control apparatus, comprising:
- a Central Processing Unit (CPU) configured to;
receive a plurality of pieces of voltage information related to a voltage of one or more batteries upon discharge;
use the plurality of pieces of voltage information in an early stage of the discharge;
calculate a ratio of an amount of change in capacity of the one or more batteries to an amount of change in a potential of the one or more batteries; and
determine presence or absence of a deterioration of the one or more batteries based on detection of a plurality of maximum values of the calculated ratio that are greater than a first threshold value in the early stage of the discharge.
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Abstract
A control apparatus includes, for example, an input unit to which a plurality of pieces of voltage information related to a voltage of an electric storage unit upon discharge are input, and a determination unit configured to use the voltage information in an early stage of the discharge and determine the presence or absence of a deterioration of the electric storage unit.
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Citations
15 Claims
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1. A control apparatus, comprising:
a Central Processing Unit (CPU) configured to; receive a plurality of pieces of voltage information related to a voltage of one or more batteries upon discharge; use the plurality of pieces of voltage information in an early stage of the discharge; calculate a ratio of an amount of change in capacity of the one or more batteries to an amount of change in a potential of the one or more batteries; and determine presence or absence of a deterioration of the one or more batteries based on detection of a plurality of maximum values of the calculated ratio that are greater than a first threshold value in the early stage of the discharge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A control method in a control apparatus, the control method comprising:
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receiving a plurality of pieces of voltage information related to a potential of one or more batteries upon discharge; using the plurality of pieces of voltage information in an early stage of the discharge; and determining presence or absence of a deterioration of the one or more batteries based on a ratio of an amount of change in capacity of the one or more batteries to an amount of a change in the potential of the one or more batteries.
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14. A power supply system, comprising:
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one or more batteries; and a Central Processing Unit (CPU) configured to; acquire a voltage of the one or more batteries upon discharge, and output a voltage information related to the acquired voltage; use the voltage information in an early stage of the discharge; and determine presence or absence of a deterioration of the one or more batteries based on a ratio of an amount of change in capacity of the one or more batteries to an amount of a change in a potential of the one or more batteries.
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15. An electric-powered vehicle, comprising:
a control apparatus comprising; a Central Processing Unit (CPU) configured to; receive a plurality of pieces of voltage information related to a voltage of one or more batteries upon discharge; use the plurality of pieces of voltage information in an early stage of the discharge; calculate a ratio of an amount of change in capacity of the one or more batteries to an amount of a change in a potential of the one or more batteries; and determine presence or absence of a deterioration of the one or more batteries based on detection of a plurality of maximum values of the calculated ratio that are greater than a first threshold value in the early stage of the discharge.
Specification