Patent · US Active

Detecting and preventing a trapping event

US12326026B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

Mercedes-Benz Group AG · DE

Inventors

Alexander Wolf · Oberkochen, DE
Joaquin Rodrigo Pastor · Sindelfingen, DE
Wolfgang Schellhorn · Stuttgart, DE

Key dates

Filing date	Feb 8, 2022
Grant date	Jun 10, 2025
Priority date	—
Expiry date	Jul 11, 2042

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/55
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A device for detecting a trapping event of a motor-actuatable closing system of a vehicle includes sensor and reference sensor electrodes at least partially surrounding the edge of a vehicle opening closable by a closure element. A control unit applies an electrical potential to the sensor electrode for a charging process and a ground potential to the reference sensor electrode for a discharging process. The control unit detects a period of time until a minimum threshold for the electrical potential for the sensor electrode and the reference sensor electrode is reached. A difference between the period of times detected for the sensor and reference sensor electrodes is determined. An imminent trapping event is detected if the difference exceeds a predefined threshold and the period of time detected for the sensor electrode deviates from a predefined standard period of time or a standard period of time detected in a state detected without an imminent trapping event.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.