Electric charging system and electric vehicle
US8860368B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2012 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Apr 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.