Trailer target monitoring system and method

摘要

A vehicle trailer backup assist system and method includes a hitch angle detection apparatus and a target monitor controller. The target monitor controller processes images acquired of the trailer towed by a towing vehicle to assist with placement of a target on the trailer. The target monitor controller also monitors the target and provides feedback to the user as to proper positioning of the target on the trailer. A target move detection routine detects movement of a target by processing the pixels of the image to determine if a new trailer has been connected. Further, a trailer connection monitoring routine monitors for a changed trailer based on loss of the hitch angle or target for a predetermined time period.

主权项

1. A method of determining change of a trailer connected to a vehicle comprising:
acquiring with a camera a first image of a feature of a trailer connected to the vehicle; acquiring with the camera a second image of the feature of a trailer connected to the vehicle; detecting a trailer changed out based on a difference in the first and second images of the feature; and prompting entry of trailer information when the trailer changed out is detected.