Emergency access device for a vehicle door having a position detection coil
US11725429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2020 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Dec 10, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B81/64
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An emergency access device for an opening element of a vehicle, including: a body; a pull tab; a retention needle; a mechanical ejector; and an electric ejector which includes: a magnetic circuit surrounding the ferromagnetic core of the retention needle; an activation coil connected to an electric magnetization circuit, the activation coil being designed to magnetize the magnetic circuit and attract the ferromagnetic core of the retention needle; and a detection coil for detecting the position of the retention needle, the detection coil being connected to a detection circuit designed to measure the inductance of the detection coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.