TRAILER LEVELLING SYSTEM

A method includes calculating, at a data processing hardware, a relative angle between a tow vehicle and a trailer attached to the tow vehicle. An absolute angle of the tow vehicle is determined at the data processing hardware. An absolute angle of the trailer based on the relative angle and the absolute angle of the tow vehicle is calculated at the data processing hardware. A dimension of the trailer is determined at the data processing hardware. A trailer levelling adjustment based on the absolute angle of the trailer and the dimension of the trailer is calculated at the data processing hardware.