Abstract: A wear degree information acquiring device includes a power cable measuring unit which measures a distance from a predetermined position of a vehicle to a wearing part coming into contact with the vehicle among power cables configured to supply power to the vehicle, and a distance from the predetermined position of the vehicle to a non-wearing part not coming into contact with the vehicle among the power cables; and a wear degree information acquiring unit which acquires information indicating a degree of wear of the power cable, on the basis of a difference between the distance from the predetermined position of the vehicle to the wearing part and the distance from the predetermined position of the vehicle to the non-wearing part.

Abstract: A wear degree information acquiring device includes a power cable measuring unit which measures a distance from a predetermined position of a vehicle to a wearing part coming into contact with the vehicle among power cables configured to supply power to the vehicle, and a distance from the predetermined position of the vehicle to a non-wearing part not coming into contact with the vehicle among the power cables; and a wear degree information acquiring unit which acquires information indicating a degree of wear of the power cable, on the basis of a difference between the distance from the predetermined position of the vehicle to the wearing part and the distance from the predetermined position of the vehicle to the non-wearing part.

Abstract: This charging device is provided with a charger, a resistor, a ground-side switch, and a determination device. The charger charges a secondary battery that is provided to a vehicle. The resistor is connected in parallel with the charger. The ground-side switch connects the charger and the resistor in an openable/closable manner. The determination device acquires information indicating that the ground-side switch is closed and information indicating that a vehicle-side switch that connects the secondary battery and the charger in an openable/closable manner is open and subsequently determines that the vehicle-side switch is short-circuited when a physical quantity that relates to the electricity of the resistor does not decrease.

Abstract: A charging control device includes a power reception unit, a charging instruction output unit, and a travel instruction output unit. The power reception unit receives power from a power supply device when the power reception unit is present in a power supply area where the power from the power supply device can be supplied. The charging instruction output unit outputs a charging instruction relating to charging of a secondary battery using the power received by the power reception unit. The travel instruction output unit outputs a travel instruction relating to traveling of a vehicle provided with the charging control device. The secondary battery and a travel motor are electrically insulated from each other when the charging instruction output unit outputs a charging start instruction as the charging instruction for the secondary battery, and are electrically connected to each other when the travel instruction output unit outputs a travel start instruction for the vehicle.

Abstract: A traffic system includes: a vehicle having a power-receiving section on an outer surface thereof; and a ground facility having a power-supply section for supplying the power-receiving section with power by coming in contact with the power-receiving section. The power-supply section has a spring for applying a biasing force to a power-supply shoe in the power-supply section toward the power-receiving section. The power-receiving section has a flat surface that extends along the outer surface of the vehicle, and tapered surfaces that are connected to the flat surface in the forward and backward moving directions of the vehicle and guide the power-supply shoe to the flat surface against the biasing force to bring the power-supply shoe into contact with the flat surface when the vehicle moves backward and forward.

Abstract: A charge control device determines a current value acquired by dividing a current amount that should be charged in a secondary battery in a vehicle at a charging location by an allowable charging time at the charging location on the basis of a charging amount as a physical quantity associated with the charging state of the secondary battery. When the vehicle arrives at the charging location, the charge control device allows a charging device provided at the charging location to charge the secondary battery with the current having the determined current value for the allowable charging time.

Abstract: The deterioration function calculation device includes: a storage unit which stores the running time of the secondary battery during the use in association with the deterioration rate of the secondary battery during the running time; an equivalent coefficient calculation unit which calculates an equivalent coefficient for normalizing the running time, on the basis of values related to the use; an equivalent running time calculation unit which calculates an equivalent running time on the basis of the running time and the equivalent coefficient related to the use related to the running time; and a deterioration function calculation unit which calculates a deterioration function representing a relationship between the equivalent running time and the deterioration rate.

Abstract: This charging device is provided with a charger, a resistor, a ground-side switch, and a determination device. The charger charges a secondary battery that is provided to a vehicle. The resistor is connected in parallel with the charger. The ground-side switch connects the charger and the resistor in an openable/closable manner. The determination device acquires information indicating that the ground-side switch is closed and information indicating that a vehicle-side switch that connects the secondary battery and the charger in an openable/closable manner is open and subsequently determines that the vehicle-side switch is short-circuited when a physical quantity that relates to the electricity of the resistor does not decrease.

Abstract: A charging control device includes a power reception unit, a charging instruction output unit, and a travel instruction output unit. The power reception unit receives power from a power supply device when the power reception unit is present in a power supply area where the power from the power supply device can be supplied. The charging instruction output unit outputs a charging instruction relating to charging of a secondary battery using the power received by the power reception unit. The travel instruction output unit outputs a travel instruction relating to traveling of a vehicle provided with the charging control device. The secondary battery and a travel motor are electrically insulated from each other when the charging instruction output unit outputs a charging start instruction as the charging instruction for the secondary battery, and are electrically connected to each other when the travel instruction output unit outputs a travel start instruction for the vehicle.

Abstract: A traffic system includes: a vehicle having a power-receiving section on an outer surface thereof; and a ground facility having a power-supply section for supplying the power-receiving section with power by coming in contact with the power-receiving section. The power-supply section has a spring for applying a biasing force to a power-supply shoe in the power-supply section toward the power-receiving section. The power-receiving section has a flat surface that extends along the outer surface of the vehicle, and tapered surfaces that are connected to the flat surface in the forward and backward moving directions of the vehicle and guide the power-supply shoe to the flat surface against the biasing force to bring the power-supply shoe into contact with the flat surface when the vehicle moves backward and forward.

Abstract: A charge control device determines a current value acquired by dividing a current amount that should be charged in a secondary battery in a vehicle at a charging location by an allowable charging time at the charging location on the basis of a charging amount as a physical quantity associated with the charging state of the secondary battery. When the vehicle arrives at the charging location, the charge control device allows a charging device provided at the charging location to charge the secondary battery with the current having the determined current value for the allowable charging time.