Method and device for correction temperature-dependent changes in the mechanical properties of a mobile closing part of a vehicle
US8620531B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/55
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a method and device for correcting temperature-dependent changes in the mechanical properties of a closing part of a vehicle, the closing part can be moved by a direct current motor. As part of the production of the vehicle, the mechanical properties of the mobile closing part are ascertained during a closing procedure at a first ambient temperature and stored in a non-volatile manner in the form of a first reference characteristic in a memory of the vehicle. While the vehicle is running at least one more reference characteristic is ascertained and likewise stored in a non-volatile manner in the memory of the vehicle, whereby every additional reference characteristic is associated with a different ambient temperature. The stored reference characteristics are compared to a calculated characteristic while the vehicle is running in order to check whether jamming exists or not.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.