Trailer sensor module and associated method of wireless trailer identification and motion estimation

A method of identifying a trailer with a vehicle, comprising:

• transmitting a unique identifier with a wireless transmitter attached to the trailer;
• receiving the unique identifier with a wireless receiver on the vehicle;
• determining that the trailer associated with the unique identifier is coupled with a hitch of the vehicle based on the wireless receiver consistently receiving signals from the wireless transmitter;
• and
• accessing a parameter of the trailer based on the received unique identifier for autonomously guiding the trailer along a desired backing path.

A trailer backup assist system for a vehicle reversing a trailer, comprising:

• a wireless transmitter coupled with the trailer and emitting a unique identifier;
• a wireless receiver coupled with the vehicle for receiving the unique identifier;
• and
• a controller on the vehicle identifying the trailer based on the unique identifier and accessing a parameter of the identified trailer for autonomously guiding the trailer with the vehicle along a desired backing path, wherein the parameter includes a yaw rate of the trailer generated by a yaw rate sensor attached to the trailer, and wherein upon identification of the trailer, the wireless transmitter emits the yaw rate of the trailer for determining a hitch angle between the vehicle and the trailer.