Passive entry system for automotive vehicle doors
US8451087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 25, 2007 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Oct 11, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1059
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A passive entry system for an vehicle door requires no active operator input to gain entrance to the vehicle. A door module recognizes the signal transmitted by an authorized key fob to identify the operator of the vehicle. The authentication of the operator coupled with the operator touching a sensor on the door to be opened actuates a release actuator that unlatches the selected door. The spring-load provided by the door seal will pop the door open from the closed position. A key cylinder, which can be located substantially anywhere on the door, is coupled mechanically to the release latch for use if the battery is weak and cannot activate the release actuator. An LED signals the state of the opening sequence for the door. The fixed door handle can incorporate a membrane switch or a capacitive sensor to indicate the selection of the door by the operator when touched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.