Assistance in driving on a fast road with carriageways separated by a safety rail
US11400943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2017 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | May 18, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2555/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for assisting in the driving of a vehicle on a fast road with carriageways separated by a safety rail in which the presence of the safety rail is detected is disclosed. The safety rail is modelled from measurements performed continuously by at least one laser scanner sensor mounted on the motor vehicle, with the determination of a confidence index associated with the detection by the laser scanner sensor, an automatic driving mode is activated when the confidence index ICONF is above a confidence threshold. This mode is maintained as long as a current confidence index associated with the detection is above the confidence threshold, and this mode is deactivated when the current confidence index passes below said confidence threshold. The density of traffic in front of the motor vehicle is estimated from images captured by an embedded camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.