System and method for determining articulated trailer angle

The present system and method determines an angle of an articulated trailer relative to a towing vehicle hitched by the trailer. An optical encoder is positioned below the fifth wheel of the tractor that is coupled with the trailer master pin when the trailer is hitched to the tractor. The optical coupler has a rotating shaft that may include a pin that physically interacts with the master pin and/or may include a magnet magnetically attached to the master pin. A clearance cleaning block may be positioned on the spring plate to interact with a bottom surface of the trailer pin during hitch of the trailer to the towing vehicle. A LiDAR attached to the towing vehicle may detect a front end of the trailer to determine an angle of the trailer relative to the towing vehicle. 本发明系统和方法确定铰接式挂车相对于挂车所挂接牵引车的角度。光学编码器定位于牵引车第五轮下方，当挂车挂接至牵引车时，该光学编码器与挂车主销耦接。光耦合器具有旋转轴，该旋转轴可以包括与主销物理上相互作用的销和/或可包括磁性附接至主销的磁体。间隙清洁块可定位于弹簧板上，以在挂车挂接至牵引车期间与挂车主销的底面相互作用。附接至牵引车的LiDAR可以检测挂车前端以确定挂车相对于牵引车的角度。