Motor vehicle door lock system
US6891312B2 · kind B2 · utility
1Cited by
4References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2002 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Jan 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00769
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A motor vehicle door locking system and a process for controlling the locking system. A piezoelement is assigned to a stationary outside door handle and is used to detect touching and/or actuation of the outside door handle. To increase the operating reliability, to simplify troubleshooting and to minimize the power consumption, there is a monitoring device that monitors the piezoelement. The piezoelement is monitored for fracture and the occurrence of the first signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.