Protective control system for power door latch
US4949804A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1989 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Jan 18, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B47/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safety system used in combination with a vehicular power door latch has a mechanism operated by a motor in turn driven by a drive apparatus for opening and closing vehicle door. The safety system comprises a vehicle speed sensor generating an output when vehicle speed exceeds a predetermined limit, a counter startable when the motor is actuated, and a controller connected between the speed sensor and the counter and to the apparatus for shutting down the apparatus and thereby deenergizing the motor when the vehicle-speed output exceeds the limit and when the counter has counted since the motor started beyond a predetermined limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.