| 摘要 |
The invention relates to a trailer coupling (30) for a towing vehicle (11), having a coupling carrier (32), which comprises, in particular, a coupling arm (31) and at whose free end a coupling body (33), in particular, a coupling ball (34) is arranged for connecting a trailer (20), and which coupling carrier (32) is fixedly or movably arranged on a mount (45) which is or can be attached to the towing vehicle (11), and having a sensor arrangement (50) which has at least one sensor (51, 52) and has the purpose of sensing a traction force (Fx) and/or thrust force which can be caused by a traction load acting on the coupling element during a traction operation of the trailer (20) and of outputting a force signal (fx) representing the traction force (Fx) and/or thrust force, and having an evaluation device (60) which has evaluation means (68) for determining a trailer mass value (ah) of the trailer (20) on the basis of the force signal (fx). There is provision that the evaluation means (68) are configured to determine the trailer mass value (ah) on the basis of an evaluation of at least one spring parameter (c) which represents at least one spring property of the trailer coupling (30), in particular of the coupling carrier (32). |
