公开(公告)号：US20200041304A1

公开(公告)日：2020-02-06

申请号：US16050189

申请日：2018-07-31

Applicant: GM Global Technology Operations LLC

Inventor： Carlos E. Arreaza ,  Amin Abdossalami ,  Norman J. Weigert ,  Daniel S. Maitlen ,  David M. Sidlosky

IPC: G01C22/00 ,  G06T7/246

Abstract: A method for producing high resolution virtual wheel speed sensor data includes simultaneously collecting wheel speed sensor (WSS) data from multiple wheel speed sensors each sensing rotation of one of multiple wheels of an automobile vehicle. A camera image is generated of a vehicle environment from at least one camera mounted in the automobile vehicle. An optical flow program is applied to discretize the camera image in pixels. Multiple distance intervals are overlayed onto the discretized camera image each representing a vehicle distance traveled defining a resolution of each of the multiple wheel speed sensors. A probability distribution function is created predicting a distance traveled for a next WSS output.

公开(公告)号：US11720106B2

公开(公告)日：2023-08-08

申请号：US16735975

申请日：2020-01-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jeremy P. Gray ,  Grant A. Soremekun ,  Daniel S. Maitlen

IPC: G05D1/02 ,  G05B17/02 ,  B60R11/04 ,  G08G1/01 ,  G08G1/0968

CPC classification number: G05D1/0212 ,  B60R11/04 ,  G05B17/02 ,  G08G1/0112 ,  G08G1/0141 ,  G08G1/096877 ,  G05D2201/0213

Abstract: Examples described herein provide a computer-implemented method that includes defining, by a processing device, a plurality of parameters so that any orthogonal intersection can be described. The method further includes building, by the processing device, an orthogonal parameterized model that can represent any orthogonal intersection based at least in part on the plurality of parameters that can describe any intersection of interest. The method further includes expanding, by the processing device, the orthogonal parameterized model to generate a fully parameterized intersection model that accounts for intersection complexities. The method further includes building, by the processing device, a low-fidelity analytical that computes various metrics based on the fully parameterized intersection model.

公开(公告)号：US20210208588A1

公开(公告)日：2021-07-08

申请号：US16735975

申请日：2020-01-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jeremy P. Gray ,  Grant A. Soremekun ,  Daniel S. Maitlen

IPC: G05D1/02 ,  G05B17/02 ,  G08G1/0968 ,  G08G1/01 ,  B60R11/04

Abstract: Examples described herein provide a computer-implemented method that includes defining, by a processing device, a plurality of parameters so that any orthogonal intersection can be described. The method further includes building, by the processing device, an orthogonal parameterized model that can represent any orthogonal intersection based at least in part on the plurality of parameters that can describe any intersection of interest. The method further includes expanding, by the processing device, the orthogonal parameterized model to generate a fully parameterized intersection model that accounts for intersection complexities. The method further includes building, by the processing device, a low-fidelity analytical that computes various metrics based on the fully parameterized intersection model.