The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 02, 2021

Filed:

Jan. 18, 2018
Applicant:

Baidu Usa Llc, Sunnyvale, CA (US);

Inventors:

Yajia Zhang, Sunnyvale, CA (US);

Haoyang Fan, Sunnyvale, CA (US);

Liangliang Zhang, Sunnyvale, CA (US);

Weicheng Zhu, Sunnyvale, CA (US);

Qi Kong, Sunnyvale, CA (US);

Jingao Wang, Sunnyvale, CA (US);

Assignee:

BAIDU USA LLC, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60W 30/00 (2006.01); G01C 21/00 (2006.01); G05D 1/02 (2020.01); B60W 30/02 (2012.01); B62D 6/00 (2006.01); G05D 1/00 (2006.01); B62D 15/02 (2006.01); B60W 30/08 (2012.01);
U.S. Cl.
CPC ...
G05D 1/0088 (2013.01); B60W 30/08 (2013.01); B62D 15/025 (2013.01); B62D 15/0265 (2013.01); G05D 1/0212 (2013.01); G05D 1/0274 (2013.01); G05D 2201/0213 (2013.01);
Abstract

According to one embodiment, an ADV is controlled according to a first trajectory planned during a first planning cycle. A control error is determined which represents a drifting error at a first location of the ADV at a first point in time at the end of the first planning cycle. A second point in time is selected on the first trajectory. A second trajectory is generated from a second location on the first trajectory corresponding o the second point in time as a starting location of the second trajectory for a second planning cycle as a next planning cycle. A segment of the first trajectory between the first point in time and the second point in time is combined with the second trajectory to generate a third trajectory for the second planning cycle. The ADV is driven and controlled according to the third trajectory corresponding to the second planning cycle.


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