Electric charging system, electric vehicle and electric charger
US8669739B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2012 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Jun 29, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S30/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There are provided an electric charging system, an electric vehicle and an electric charger. Upon charging a battery, power supply lines of an electric charger are connected to the power receiving lines of an electric vehicle 12. The power receiving lines have a relay. The electric charger has a voltage sensor that measures a voltage between the power supply lines. The electric charger has a voltage processing portion that applies filtering to the voltage. Upon charging when charging power is supplied from the electric controller, a filtering process with a stability-oriented first filter is applied to the voltage. Upon a relay failure diagnosis that performs a failure diagnosis of the relay based on a change in the voltage due to opening and closing of the relays, a filtering process with a second filter that has a higher responsiveness is applied to the voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.