Abstract: Examples provide a trailer hitch system for connecting a tow vehicle and a trailer. Some examples of the system include a vehicle connector configured to be coupled to the tow vehicle and a chamber coupled to the vehicle connector. The chamber includes a center, an interior wall, and a valve for modulating a flow of hydraulic fluid within the chamber. A pin extends through the chamber and is configured to rotate within the chamber. A paddle is coupled to the pin and sized and shaped to sit substantially flush against the interior wall. The paddle is configured to push the hydraulic fluid in a first direction and a second direction through the valve. A trailer connector is coupled to the pin and configured to be coupled to the trailer.

Abstract: Systems and methods for determining a planned trajectory of a host vehicle using line mirroring. A plurality of reported lines on a roadway surface are determined based on image data and analyzed to detect a highway exit. When a highway exit is not detected, a planned trajectory for the host vehicle is determined based on a lane defined between two of the reported lines. However, when a highway exit is detected based on an analysis of the reported lines, a planned trajectory of the host vehicle is determined based on a lane defined between one of the reported lines and a mirrored line. The shape of the mirrored line is determined based on the shape of another reported line detected along a first side the host vehicle and is positioned along the other side of the host vehicle opposite the first side.