METHOD AND APPARATUS FOR CHARGING SECONDARY BATTERIES
First Claim
1. A secondary-battery electrical charging method comprising:
- measuring a present time point;
setting an electrical-charging end time point at which an operation to electrically charge a secondary battery is to be terminated;
computing an electrical-charging resumption time point on the basis of said electrical-charging end time point and the length of time it takes to complete said operation to electrically charge said secondary battery at said electrical-charging end time point on an assumption that said operation is started from a state in which the amount of electric charge stored in said secondary battery has reached an electric-charge amount determined in advance; and
carrying out said operation to electrically charge said secondary battery in a first electrical-charging mode in which said operation is stopped after said secondary battery is electrically charged to said electric-charge amount determined in advance and resumed when the present time point reaches said electrical-charging resumption time point.
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Accused Products
Abstract
A secondary-battery electrically charging method includes: measuring the present time point; setting an electrical-charging end time point at which an operation to electrically charge a secondary battery is to be terminated; computing an electrical-charging resumption time point on the basis of the electrical-charging end time point and the length of time it takes to complete the operation to electrically charge the secondary battery on the assumption that the operation is started from a state in which the amount of electric charge stored in the secondary battery has reached an electric-charge amount determined in advance; and carrying out the operation to electrically charge the secondary battery in a first electrical-charging mode in which the operation is stopped after the secondary battery is electrically charged to the electric-charge amount determined in advance and resumed when the present time point reaches the electrical-charging resumption time point.
24 Citations
11 Claims
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1. A secondary-battery electrical charging method comprising:
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measuring a present time point; setting an electrical-charging end time point at which an operation to electrically charge a secondary battery is to be terminated; computing an electrical-charging resumption time point on the basis of said electrical-charging end time point and the length of time it takes to complete said operation to electrically charge said secondary battery at said electrical-charging end time point on an assumption that said operation is started from a state in which the amount of electric charge stored in said secondary battery has reached an electric-charge amount determined in advance; and carrying out said operation to electrically charge said secondary battery in a first electrical-charging mode in which said operation is stopped after said secondary battery is electrically charged to said electric-charge amount determined in advance and resumed when the present time point reaches said electrical-charging resumption time point. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A secondary-battery electrically charging method comprising:
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measuring a present time point; setting an electrical-charging end time point at which an operation to electrically charge a secondary battery is to be terminated; detecting the amount of residual electric charge left in said secondary battery at the start of said operation to electrically charge said secondary battery; and carrying out said operation to electrically charge said secondary battery by beginning said operation at said start at which said amount of residual electric charge left in said secondary battery is detected and by adjusting an electrical-charging current so as to terminate said operation at said electrical-charging end time point.
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8. A secondary-battery electrically charging apparatus comprising:
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time measurement means for measuring a present time point; electrical-charging end time-point setting means for setting an electrical-charging end time point at which an operation to electrically charge a secondary battery is to be terminated; electrical-charging resumption-time-point computation means for computing an electrical-charging resumption time point on the basis of said electrical-charging end time point and the length of time it takes to complete said operation to electrically charge said secondary battery at said electrical-charging end time point on the assumption that said operation is started from a state in which the amount of electric charge stored in said secondary battery has reached an electric-charge amount determined in advance; and electrical-charging control means for carrying out said operation to electrically charge said secondary battery in a first electrical-charging mode in which said operation is stopped after said secondary battery is electrically charged to said electric-charge amount determined in advance and resumed when the present time point reaches said electrical-charging resumption time point.
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9. A secondary-battery electrically charging apparatus comprising:
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time measurement means for measuring a present time point; electrical-charging end time-point setting means for setting an electrical-charging end time point at which an operation to electrically charge a secondary battery is to be terminated; battery residual electric-charge amount detection means for detecting the amount of residual electric charge left in said secondary battery at the start of said operation to electrically charge said secondary battery; and electrical-charging control means for carrying out said operation to electrically charge said secondary battery by beginning said operation at said start at which said amount of residual electric charge left in said secondary battery is detected and by adjusting an electrical-charging current so as to terminate said operation at said electrical-charging end time point.
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10. A secondary-battery electrically charging apparatus comprising:
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a time measurement section configured to measure a present time point; an electrical-charging end time-point setting section configured to set an electrical-charging end time point at which an operation to electrically charge a secondary battery is to be terminated; an electrical-charging resumption-time-point computation section configured to compute an electrical-charging resumption time point on the basis of said electrical-charging end time point and the length of time it takes to complete said operation to electrically charge said secondary battery at said electrical-charging end time point on the assumption that said operation is started from a state in which the amount of electric charge stored in said secondary battery has reached an electric-charge amount determined in advance; and an electrical-charging control section configured to carry out said operation to electrically charge said secondary battery in a first electrical-charging mode in which said operation is stopped after said secondary battery is electrically charged to said electric-charge amount determined in advance and resumed when the present time point reaches said electrical-charging resumption time point.
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11. A secondary-battery electrically charging apparatus comprising:
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a time measurement section configured to measure a present time point; an electrical-charging end time-point setting section configured to set an electrical-charging end time point at which an operation to electrically charge a secondary battery is to be terminated; a battery residual electric-charge amount detection section configured to detect the amount of residual electric charge left in said secondary battery at the start of said operation to electrically charge said secondary battery; and an electrical-charging control section configured to carry out said operation to electrically charge said secondary battery by beginning said operation at said start at which said amount of residual electric charge left in said secondary battery is detected and by adjusting an electrical-charging current so as to terminate said operation at said electrical-charging end time point.
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Specification