Tow bar arrangement

Abstract

Tow bar arrangement (100) for interconnection of a vehicle (10) and a trailer (20) for towing the trailer (20) by the vehicle (10) along a support surface (G), wherein the tow bar arrangement (100) comprises a control device (110) in turn comprising an ac- celeration sensor (111) arranged to sense an instantaneous acceleration of the trailer (20) along the support surface (G). The control device (110) is arranged to read the instantaneous acceleration from the acceleration sensor (111) and to produce a control signal for an electric motor (21) arranged to propel the trailer (20) so that a force developed by the motor (21) aims at maintaining a set acceleration of the trailer (20) along the support surface (G); is arranged to read the measured acceleration to produce a first time series, of acceleration measurement values; comprises a low-pass filter (112) arranged to filter the first time series, or a second time series being calculated based on the first time series, to produce a third time series, of low- pass filtered values; and furthermore comprises a regulator (113), arranged to produce the control signal based on the third time series.

Description

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Claims

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