Availability prediction apparatus for electric power storage device
First Claim
1. An availability prediction apparatus for an electric power storage device of an electric power system that executes an electric power transfer control using the electric power storage device, the electric power storage device being equipped to a vehicle, the availability prediction apparatus comprising:
- an access section that accesses a storage section storing a plurality of availability specified periods which occurred before a present time associated with respective frequencies of the availability specified periods and acquires the availability specified periods and the respective frequencies of the availability specified periods from the storage section, the availability specified periods being available periods or unavailable periods, wherein, during the available periods, the electric power storage device is available for the electric power transfer control by electrically connecting the vehicle equipped with the electric power storage device to the electric power system, and during the unavailable periods, the electric power storage device is unavailable for the electric power transfer control by electrically disconnecting the vehicle equipped with the electric power storage device from the electric power system; and
a prediction section that executes a prediction process in order to predict at least one target availability specified period which will occur within a prediction term based on the availability specified periods and the respective frequencies of the availability specified periods acquired by the access section, the prediction term beginning at the present time and ending at a time later than the present time by a predetermined term,wherein the prediction section includes;
a correlating section that correlates the availability specified periods acquired by the access section with a plurality of candidate periods included in the prediction term; and
a selection section that specifies and selects one of the candidate periods having a highest occurrence probability, which is correlated with one of the availability specified periods having a highest frequency,wherein the prediction section sets the one of the candidate periods having the highest occurrence probability as the target availability specified period,wherein the electric power transfer control is executed within the electric power system based on the target availability specified period,wherein the electric power transfer control includes an electric power supply from the electric power storage device equipped to the vehicle to a load disposed outside of the vehicle and a charging of the electric power storage device equipped to the vehicle with an external power supply,wherein the electric power system executes the electric power transfer control during the target availability specified period so that an operation parameter related to the electric power transfer control has an optimum value,wherein the prediction section predicts a plurality of the target availability specified periods within the prediction term,wherein the selection section selects the target availability specified periods under a condition that the target availability specified periods, which have been selected, are not overlapped with one another,wherein, after the selection section selects the one of the candidate periods having the highest occurrence probability, the selection section further repeatedly selects another one of the candidate periods having a next highest occurrence probability from the candidate periods once or more times when a predetermined condition is satisfied, andwherein, when the next highest occurrence probability of the another one of the candidate periods is equal to or higher than a threshold value, the predetermined condition is satisfied and the selection section selects the another one of the candidate periods having the next highest occurrence probability from the candidate periods.
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Accused Products
Abstract
An availability prediction apparatus includes an access section that accesses a storage section and a prediction section. The storage section stores availability specified periods occurred before a present time associated with respective frequencies of the availability specified periods, and the access section acquires the availability specified periods from the storage section. The prediction section predicts at least one target availability specified period within a prediction term, which begins at the present time and ends at a time later than the present time by a predetermined term. The prediction section includes a correlating section that correlates the availability specified periods with candidate periods included in the prediction term, and a selection section that specifies and selects one of the candidate periods having a highest occurrence probability as the target availability specified period.
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Citations
13 Claims
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1. An availability prediction apparatus for an electric power storage device of an electric power system that executes an electric power transfer control using the electric power storage device, the electric power storage device being equipped to a vehicle, the availability prediction apparatus comprising:
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an access section that accesses a storage section storing a plurality of availability specified periods which occurred before a present time associated with respective frequencies of the availability specified periods and acquires the availability specified periods and the respective frequencies of the availability specified periods from the storage section, the availability specified periods being available periods or unavailable periods, wherein, during the available periods, the electric power storage device is available for the electric power transfer control by electrically connecting the vehicle equipped with the electric power storage device to the electric power system, and during the unavailable periods, the electric power storage device is unavailable for the electric power transfer control by electrically disconnecting the vehicle equipped with the electric power storage device from the electric power system; and a prediction section that executes a prediction process in order to predict at least one target availability specified period which will occur within a prediction term based on the availability specified periods and the respective frequencies of the availability specified periods acquired by the access section, the prediction term beginning at the present time and ending at a time later than the present time by a predetermined term, wherein the prediction section includes; a correlating section that correlates the availability specified periods acquired by the access section with a plurality of candidate periods included in the prediction term; and a selection section that specifies and selects one of the candidate periods having a highest occurrence probability, which is correlated with one of the availability specified periods having a highest frequency, wherein the prediction section sets the one of the candidate periods having the highest occurrence probability as the target availability specified period, wherein the electric power transfer control is executed within the electric power system based on the target availability specified period, wherein the electric power transfer control includes an electric power supply from the electric power storage device equipped to the vehicle to a load disposed outside of the vehicle and a charging of the electric power storage device equipped to the vehicle with an external power supply, wherein the electric power system executes the electric power transfer control during the target availability specified period so that an operation parameter related to the electric power transfer control has an optimum value, wherein the prediction section predicts a plurality of the target availability specified periods within the prediction term, wherein the selection section selects the target availability specified periods under a condition that the target availability specified periods, which have been selected, are not overlapped with one another, wherein, after the selection section selects the one of the candidate periods having the highest occurrence probability, the selection section further repeatedly selects another one of the candidate periods having a next highest occurrence probability from the candidate periods once or more times when a predetermined condition is satisfied, and wherein, when the next highest occurrence probability of the another one of the candidate periods is equal to or higher than a threshold value, the predetermined condition is satisfied and the selection section selects the another one of the candidate periods having the next highest occurrence probability from the candidate periods. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An availability prediction apparatus for an electric power storage device of an electric power system that executes an electric power transfer control using the electric power storage device, the electric power storage device being equipped to a vehicle, the availability prediction apparatus comprising:
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an access section that accesses a storage section storing a plurality of availability specified periods which occurred before a present time associated with respective frequencies of the availability specified periods and acquires the availability specified periods and the respective frequencies of the availability specified periods from the storage section, the availability specified periods being available periods or unavailable periods, wherein, during the available periods, the electric power storage device is available for the electric power transfer control by electrically connecting the vehicle equipped with the electric power storage device to the electric power system, and during the unavailable periods, the electric power storage device is unavailable for the electric power transfer control by electrically disconnecting the vehicle equipped with the electric power storage device from the electric power system; and a prediction section that executes a prediction process in order to predict at least one target availability specified period which will occur within a prediction term based on the availability specified periods and the respective frequencies of the availability specified periods acquired by the access section, the prediction term beginning at the present time and ending at a time later than the present time by a predetermined term, wherein the prediction section includes; a correlating section that correlates the availability specified periods acquired by the access section with a plurality of candidate periods included in the prediction term; and a selection section that specifies and selects one of the candidate periods having a highest occurrence probability, which is correlated with one of the availability specified periods having a highest frequency, wherein the prediction section sets the one of the candidate periods having the highest occurrence probability as the target availability specified period, wherein the electric power transfer control is executed within the electric power system based on the target availability specified period, wherein the electric power transfer control includes an electric power supply from the electric power storage device equipped to the vehicle to a load disposed outside of the vehicle and a charging of the electric power storage device equipped to the vehicle with an external power supply, wherein the electric power system executes the electric power transfer control during the target availability specified period so that an operation parameter related to the electric power transfer control has an optimum value, wherein the prediction section predicts a plurality of the target availability specified periods within the prediction term, wherein the selection section selects the target availability specified periods under a condition that the target availability specified periods, which have been selected, are not overlapped with one another, wherein, after the selection section selects the one of the candidate periods having the highest occurrence probability, the selection section further repeatedly selects another one of the candidate periods having a next highest occurrence probability from the candidate periods once or more times when a predetermined condition is satisfied, and wherein, when the next highest occurrence probability of the another one of the candidate periods, which is to be selected, is decreased by an amount compared with the highest occurrence probability of the one of the candidate periods, which has been selected immediately before, or the next highest occurrence probability of the another one of the candidate periods, which has been selected immediately before, and the amount is smaller than a difference threshold value, the predetermined condition is satisfied and the selection section selects the another one of the candidate periods having the next highest occurrence probability from the candidate periods.
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13. An availability prediction apparatus for an electric power storage device of an electric power system that executes an electric power transfer control using the electric power storage device, the electric power storage device being equipped to a vehicle, the availability prediction apparatus comprising:
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an access section that accesses a storage section storing a plurality of availability specified periods which occurred before a present time associated with respective frequencies of the availability specified periods and acquires the availability specified periods and the respective frequencies of the availability specified periods from the storage section, the availability specified periods being available periods or unavailable periods, wherein, during the available periods, the electric power storage device is available for the electric power transfer control by electrically connecting the vehicle equipped with the electric power storage device to the electric power system, and during the unavailable periods, the electric power storage device is unavailable for the electric power transfer control by electrically disconnecting the vehicle equipped with the electric power storage device from the electric power system; a prediction section that executes a prediction process in order to predict at least one target availability specified period which will occur within a prediction term based on the availability specified periods and the respective frequencies of the availability specified periods acquired by the access section, the prediction term beginning at the present time and ending at a time later than the present time by a predetermined term, wherein the prediction section includes; a correlating section that correlates the availability specified periods acquired by the access section with a plurality of candidate periods included in the prediction term; and a selection section that specifies and selects one of the candidate periods having a highest occurrence probability, which is correlated with one of the availability specified periods having a highest frequency, wherein the prediction section sets the one of the candidate periods having the highest occurrence probability as the target availability specified period, wherein the electric power transfer control is executed within the electric power system based on the target availability specified period, wherein the electric power transfer control includes an electric power supply from the electric power storage device equipped to the vehicle to a load disposed outside of the vehicle and a charging of the electric power storage device equipped to the vehicle with an external power supply, and wherein the electric power system executes the electric power transfer control during the target availability specified period so that an operation parameter related to the electric power transfer control has an optimum value, wherein the storage section that stores the availability specified periods occurred before the present time associated with the respective frequencies of the availability specified periods, a second determination section that determines whether the electric power storage device is available for the electric power transfer control; and an increment section that increments the frequency of one of the availability specified periods in a relative manner with respect to the respective frequencies of the availability specified periods other than the one of the availability specified periods when the increment section detects an occurrence of the one of the availability specified periods based on a determination result of the second determination section.
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Specification