Inhibit control of a belted vehicular passive restraint system having door-mounted retractors
US4796916A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Dec 16, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Each vehicle door in which a retractor is mounted includes a jamb switch mounted in the door jamb for sensing actual opening of the door, and a lock switch mounted in the door lock assembly for sensing actuation of the interior or exterior door handles. When door opening or closure is indicated, locking of the retractors is inhibited for a predetermined interval. Logical agreement between the lock and jamb switches is required to maintain the inhibit beyond the predetermined interval while the door is open. If agreement is not achieved within the interval, a switch failure is presumed, and the inhibit is removed to permit normal locking of the retractors. If such agreement is achieved, the inhibit is maintained until closure of the door, and thereafter for another predetermined interval. If the switches fail to remain in agreement after closure of the door, further operation of the inhibit on subsequent opening of the door is disabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.