Electric charging system and electric vehicle
First Claim
1. An electric charging system in which an electric charger and an electric vehicle are connected by a charging cable, and an electric storage device installed in the electric vehicle is charged, the electric charging system comprising:
- a first reference setting unit for setting a reference point on the basis of a variation rate of supply-side processing data, the reference point being set with respect to the supply-side processing data that are calculated by subjecting a supplied voltage, a supplied current, or a supplied power at the electric charger side to a predetermined filter processing;
a second reference setting unit for setting a reference point on the basis of a variation rate of reception-side processing data, the reference point being set with respect to the reception-side processing data that are calculated by subjecting a received voltage, a received current, or a received power at the electric vehicle side to a predetermined filter processing;
a data synchronization unit for synchronizing the supply-side processing data and the reception-side processing data on the basis of the reference points of the supply-side processing data and the reception-side processing data; and
a determination unit for comparing the synchronized supply-side processing data and reception-side processing data and determining whether or not a power supply state between the electric charger and the electric vehicle is normal.
3 Assignments
0 Petitions
Accused Products
Abstract
In an electric charging system (and electric vehicle), Electric-charger-side data Ds are calculated by subjecting an electric-charger-side supplied voltage Vs to filter processing, and electric-vehicle-side data Dr are calculated by subjecting an electric-vehicle-side received voltage Vr to filter processing. A reference point α1 is set for the electric-charger-side data Ds on the basis of the variation in the rise rate of the electric-charger-side data Ds. Likewise, a reference point α2 is set for the electric-vehicle-side data Dr based on variation in the rise rate of the electric-vehicle-side data Dr. When an insulation failure between the electric charger and the electric vehicle is determined, a time lag T between the electric-charger-side data Ds and the electric-vehicle-side data Dr is calculated based on the reference points α1 and α2, and the electric-charger-side data Ds and the electric-vehicle-side data Dr that are synchronized based on the time lag T are compared.
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Citations
8 Claims
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1. An electric charging system in which an electric charger and an electric vehicle are connected by a charging cable, and an electric storage device installed in the electric vehicle is charged, the electric charging system comprising:
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a first reference setting unit for setting a reference point on the basis of a variation rate of supply-side processing data, the reference point being set with respect to the supply-side processing data that are calculated by subjecting a supplied voltage, a supplied current, or a supplied power at the electric charger side to a predetermined filter processing; a second reference setting unit for setting a reference point on the basis of a variation rate of reception-side processing data, the reference point being set with respect to the reception-side processing data that are calculated by subjecting a received voltage, a received current, or a received power at the electric vehicle side to a predetermined filter processing; a data synchronization unit for synchronizing the supply-side processing data and the reception-side processing data on the basis of the reference points of the supply-side processing data and the reception-side processing data; and a determination unit for comparing the synchronized supply-side processing data and reception-side processing data and determining whether or not a power supply state between the electric charger and the electric vehicle is normal. - View Dependent Claims (2, 3, 4)
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5. An electric vehicle provided with an electric storage device connected to an electric charger by a charging cable and charged by the electric charger, the vehicle comprising:
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a first reference setting unit for setting a reference point on the basis of a variation rate of supply-side processing data, the reference point being set with respect to the supply-side processing data that are calculated by subjecting a supplied voltage, a supplied current, or a supplied power at the electric charger side to a predetermined filter processing; a second reference setting unit for setting a reference point on the basis of a variation rate of reception-side processing data, the reference point being set with respect to the reception-side processing data that are calculated by subjecting a received voltage, a received current, or a received power at the electric vehicle side to a predetermined filter processing; a data synchronization unit for synchronizing the supply-side processing data and the reception-side processing data on the basis of the reference points of the supply-side processing data and the reception-side processing data; and a determination unit for comparing the synchronized supply-side processing data and reception-side processing data and determining whether or not a power supply state between the electric charger and the electric vehicle is normal. - View Dependent Claims (6, 7, 8)
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Specification