System and method for detecting an earth ground fault of an external power supply connected to a vehicle
US8710850B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Oct 15, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and method is provided for determining the existence of a ground fault connection within a vehicle. An electrical connector may be provided for electrically connecting the vehicle to an external Alternating Current (AC) power source. The electrical connector includes a three phase electrical connector configured to receive a corresponding input voltage signal on a phase, neutral, and earth connection. A controller being configured to determine whether a faulty earth connection exists between the vehicle and the AC power source the phase connection does not exceed the predetermined phase threshold when referenced to the earth connection and the neutral connection does not exceed the predetermined neutral threshold when referenced to the earth connection or the phase connection exceeds the predetermined phase threshold when referenced to the earth connection and the neutral connection exceeds the predetermined neutral threshold when referenced to the earth connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.