Method of automatically unlocking an opening member of a motor vehicle for a hands-free system, and device for implementing the method
US8717429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2008 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Dec 6, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/548
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a method for automatically unlocking an opening member of a motor vehicle using a hands-free access system (4), comprising a central processing unit (5) intended to be installed inside the vehicle, a portable identification member (17), said central processing unit (5) being capable of communicating remotely by radiofrequency with the identification member (17) in order to authenticate it and, in response to the authentication of the identification member (17), of controlling the locking or unlocking of the opening member of the vehicle. The method comprises the following steps: the step of detecting the presence of an identification member (17) in a predefined perimeter around the vehicle; the step of authenticating that the identification member (17) is associated with the vehicle; and, in the case of positive authentication, the step of placing the access system in a “ready to unlock” state for all the opening members. The method further includes a step of remote optical recognition of a predetermined movement of a member of the body and, in the case of positive recognition of the movement, the opening member in front of which the movement has been perfo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.