公开(公告)号：US20180345979A1

公开(公告)日：2018-12-06

申请号：US15609552

申请日：2017-05-31

Applicant: GM Global Technology Operations LLC

Inventor： Amin Abdossalami ,  Robin Chin ,  Marcus-Andre Reul

IPC: B60W40/06 ,  G06K9/00 ,  B60G17/0165 ,  B60G17/0195 ,  G01C7/04

Abstract: Examples of techniques for classifying roughness of a road are disclosed. In one example implementation, a method includes performing a first temporal analysis based at least in part on a speed of each of a plurality of wheels of a vehicle. The method further includes performing a second temporal analysis based at least in part on a combined wheel speed of the plurality of wheels. The method further includes performing a frequency analysis based at least in part on the speed of each of the plurality of wheels of the vehicle. The method further includes classifying the roughness of the road based at least in part on the first temporal analysis, the second temporal analysis, and the frequency analysis.