Method and system for updating maps based on control feedbacks of autonomous driving vehicles
US10488205B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 22, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Oct 29, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2520/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In one embodiment, when an ADV is driving on a road segment, a driving parameter is recorded in response to a first control command. A difference between the first driving parameter and a target driving parameter corresponding to the first control command is determined. In response to determining that the difference exceeds a predetermined threshold, a second control command is issued to compensate the difference and cause the ADV to drive with a second driving parameter closer to the target driving parameter. A slope status of the road segment is derived based on at least the second control command. Map data of a map corresponding to the road segment of the road is updated based on the derived slope status. The updated map can be utilized to generate and issue proper control commands in view of the slope status of the road when the ADV drives on the same road subsequently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.