Protective earth (PE) loss detection
US11933862B2 · kind B2 · utility
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1References
21Claims
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Key dates
| Filing date | Oct 29, 2020 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Oct 20, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A Protective Earth (PE) loss detection method for charging an electrical vehicle is provided. The electrical vehicle comprises an Electrical Vehicle Supply Equipment (EVSE), a charging connector, and/or a charging cable comprising at least a Proximity Pilot (PP) line for a PP signal, a Control Pilot (CP) line for a CP signal and a PE line for a PE signal. The method comprises detecting interruption of the PE line by observing a change of the PP signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.