Methods for controlling a capacitive anti-trap system and anti-trap system
US10669765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2013 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Sep 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96078
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to methods for controlling a capacitive anti-trap system of a vehicle. At least two transmission electrodes and one reception electrode of the capacitive anti-trap system are used for detecting an obstacle, and an electrical field is generated by a pair comprising transmission electrode and reception electrode by actuation of the respective transmission electrode by alternating electric current, said electrical field being influenced by an obstacle such that an electrical capacitance is measurably changed. A changing electrical capacitance is determinable on the basis of a signal received via the reception electrode and this signal is evaluated by means of an electronic evaluation unit at least during closing of the vehicle closing element in order to determine the presence of an obstacle in the displacement path of the vehicle closing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.