Vehicular trailering assist system with targetless determination of misalignment of at least one trailer camera
US11820423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2023 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Mar 20, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/56
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicular trailering assist system includes at least one camera disposed at a trailer hitched to a hitch of a vehicle, and an electronic control unit (ECU). The ECU determines, during a first stage of a calibration maneuver of the vehicle and trailer, image coordinates of at least one ground feature point. The ECU, responsive to determining image coordinates of the at least one ground feature point, estimates orientation parameters of the camera based at least on the determined image coordinates and intrinsic camera parameters. As the vehicle and trailer travel further along the ground surface during a second stage of the calibration maneuver of the vehicle and trailer, and based on the estimated orientation parameters of the at least one camera, the vehicular trailering assist system determines misalignment of the at least one camera at the trailer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.