Patent · US Expired

Electrically controllable trailer coupling

US6863295B2 · kind B2 · utility

8Cited by

4References

12Claims

0Family size

Assignee

Ing. h.c. F. Porsche Aktiengesellschaft · DE

Inventors

Peter Reutlinger · Knittlingen, DE
Andreas Piede · Ellingen, DE
Eberhard Palmer · Leinfelden, DE

Key dates

Filing date	Jul 9, 2003
Grant date	Mar 8, 2005
Priority date	—
Expiry date	Jul 9, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60D1/62
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A trailer coupling for motor vehicles able to be moved from a working position to a resting position and the reverse. To increase safety, a motion of the trailer coupling is allowed only if the velocity of the motor vehicle is <=5 Km/h, if the rear window or tailgate is open and if no trailer is fastened on the coupling. The motion is stopped if the torque of the drive motor exceeds a specifiable reference value.

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