Map-less and localization-less lane following method for autonomous driving of autonomous driving vehicles on highway
US11260880B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 18, 2018 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Jul 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3602
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In one embodiment, instead of using map data, a relative coordinate system is utilized to assist perception of the driving environment surrounding an ADV for some driving situations. One of such driving situations is driving on a highway. Typically, a highway has fewer intersections and exits. The relative coordinate system is utilized based on the relative lane configuration and relative obstacle information to control the ADV to simply follow the lane and avoid potential collision with any obstacles discovered within the road, without having to use map data. Once the relative lane configuration and obstacle information have been determined, regular path and speed planning and optimization can be performed to generate a trajectory to drive the ADV. Such a perception system is referred to as a relative perception system based on a relative coordinate system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.