Degradation determining apparatus for power storage device and degradation determining method for power storage device
First Claim
1. A degradation determining apparatus for a power storage device mounted on a vehicle for driving, said vehicle being configured such that electric power can be transferred between said power storage device and a power supply external to the vehicle or an electrical load external to the vehicle, said degradation determining apparatus comprising:
- a vehicle identifying unit for identifying said vehicle based on an identification number of said vehicle obtained from said vehicle;
a first evaluation processor for evaluating a degradation state of said power storage device mounted on the vehicle corresponding to the identification number obtained by said vehicle identifying unit based on use history of said power storage device indicated based on a travel distance or running time by said power storage device, using data analyzed beforehand concerning a relation between the use history and the degradation state of said power storage device;
a second evaluation processor for evaluating a degradation state of said power storage device, using data indicating a charge/discharge state of said power storage device measured when electric power is transferred between said power storage device mounted on said vehicle and said power supply or said electrical load; and
a degradation determining unit for determining a degradation state of said power storage device based on the degradation state evaluated by said first evaluation unit and the degradation state evaluated by said second evaluation unit.
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Accused Products
Abstract
A vehicle identifying unit obtains an identification number of a vehicle from the vehicle. A first evaluation unit evaluates a degradation state of a power storage device based on the use history of the power storage device obtained from the vehicle, using data analyzed beforehand concerning the relation between the use history and the degradation state of the power storage device. A second evaluation unit evaluates a degradation state of the power storage device using data collected when the power storage device of the vehicle is charged from a power station or when power is fed from the vehicle to the power station. A degradation determining unit determines the degradation state of the power storage device based on the degradation states evaluated by the first and second evaluation units.
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Citations
8 Claims
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1. A degradation determining apparatus for a power storage device mounted on a vehicle for driving, said vehicle being configured such that electric power can be transferred between said power storage device and a power supply external to the vehicle or an electrical load external to the vehicle, said degradation determining apparatus comprising:
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a vehicle identifying unit for identifying said vehicle based on an identification number of said vehicle obtained from said vehicle; a first evaluation processor for evaluating a degradation state of said power storage device mounted on the vehicle corresponding to the identification number obtained by said vehicle identifying unit based on use history of said power storage device indicated based on a travel distance or running time by said power storage device, using data analyzed beforehand concerning a relation between the use history and the degradation state of said power storage device; a second evaluation processor for evaluating a degradation state of said power storage device, using data indicating a charge/discharge state of said power storage device measured when electric power is transferred between said power storage device mounted on said vehicle and said power supply or said electrical load; and a degradation determining unit for determining a degradation state of said power storage device based on the degradation state evaluated by said first evaluation unit and the degradation state evaluated by said second evaluation unit. - View Dependent Claims (2, 3, 4)
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5. A degradation determining method for a power storage device mounted on a vehicle for driving, said vehicle being configured such that electric power can be transferred between said power storage device and a power supply external to the vehicle or an electrical load external to the vehicle, said method comprising:
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a step of identifying said vehicle based on an identification number of said vehicle obtained from said vehicle; a first evaluation step of evaluating a degradation state of said power storage device mounted on the vehicle corresponding to the obtained identification number based on use history of said power storage device indicated based on a travel distance or running time by said power storage device, using data analyzed beforehand concerning a relation between the use history and the degradation state of said power storage device; a second evaluation step of evaluating a degradation state of said power storage device, using data indicating a charge/discharge state of said power storage device measured when electric power is transferred between said power storage device mounted on said vehicle and said power supply or said electrical load; and a step of determining a degradation state of said power storage device based on the degradation state evaluated in said first evaluation step and the degradation state evaluated in said second evaluation step. - View Dependent Claims (6, 7, 8)
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Specification