Please download the dossier by clicking on the dossier button x
×

Trailer length estimation method using trailer yaw rate signal

  • US 9,821,845 B2
  • Filed: 06/11/2015
  • Issued: 11/21/2017
  • Est. Priority Date: 06/11/2015
  • Status: Active Grant
First Claim
Patent Images

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

  • a trailer sensor outputting a trailer yaw rate;

    a vehicle sensor system outputting a vehicle yaw rate and a vehicle speed; and

    a controller;

    estimating a hitch angle between the vehicle and the trailer using an integration of a difference between the trailer yaw rate and the vehicle yaw rate over time;

    estimating a length of the trailer using the estimated hitch angle, the vehicle yaw rate, the vehicle speed, and the trailer yaw rate in a kinematic relationship; and

    using the trailer length in the kinematic relationship to control the vehicle.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×