Coupler with angular position detection assembly, angular position detection system and method

Coupler with an angular position detection assembly for determining an angular position of a front part of the coupler, wherein the coupler (10, 10′, 10″) comprises:

• a front part (11) for coupling to another coupler,
• a rear part (12) for mounting on an end of a car of a railway vehicle,
• a rotatable joint (20) comprising a first portion (21, 23) and a second portion (22, 24), said first portion being rotatably attached to the second portion,
• wherein the first portion (21, 23) of the joint is attached to the front part (11) and the second portion (22, 24) of the joint is attached to the rear part (12) so that the front part (11) of the coupler (10, 10′, 10″) is able to rotate in relation to the rear part (12), and wherein the angular position detection assembly (30) comprises
• a first sensor (31) arranged in connection with one of the first portion (21,23) and the second portion (22, 24) and configured to detect or measure a parameter indicative of an angular position of the first portion (21, 23) in relation to the second portion (22, 24), and
• a transmitter (32) configured to receive signals from the first sensor and further configured to transmit said signals to processing circuitry for determining the angular position of the front part of the coupler in relation to the rear part of the coupler.