US Patent 11285768 Vehicle system and method for detecting trailer connection

A vehicle has a trailer hitch, a vehicle electrical connector configured to electrically connect to a trailer electrical connector, and an imaging system oriented to captures images proximate to the trailer hitch. The vehicle also includes a proximity sensing system arranged to sense objects proximate to the trailer hitch and generate a proximity signal, an electrical connection detection system to detect an electrical connection to the vehicle trailer connector and generate an electrical connection signal, and a controller processing the captured images, the proximity signal and the electrical connector signal and determining a connection state of a trailer to the vehicle based on the captured images, the proximity sensor and the electrical connector signal, and generating an output indicative of the determined connection state.