Invention Grant
- Patent Title: Drifting correction between planning stage and controlling stage of operating autonomous driving vehicles
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Application No.: US16066295Application Date: 2018-05-18
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Publication No.: US11377119B2Publication Date: 2022-07-05
- Inventor: Fan Zhu , Xin Xu , Qi Kong , Yuchang Pan , Feiyi Jiang , Liangliang Zhang , Jiaming Tao , Haoyang Fan , Hui Jiang
- Applicant: Baidu USA LLC , Baidu.com Times Technology (Beijing) Co., Ltd.
- Applicant Address: US CA Sunnyvale; CN Beijing
- Assignee: Baidu USA LLC,Baidu.com Times Technology (Beijing) Co., Ltd.
- Current Assignee: Baidu USA LLC,Baidu.com Times Technology (Beijing) Co., Ltd.
- Current Assignee Address: US CA Sunnyvale; CN Beijing
- Agency: Womble Bond Dickinson (US) LLP
- International Application: PCT/CN2018/087521 WO 20180518
- International Announcement: WO2019/218353 WO 20191121
- Main IPC: B60W60/00
- IPC: B60W60/00 ; B60W10/20 ; B60W50/02

Abstract:
In one embodiment, a lateral drifting error is determined based on at least a current location of an ADV. The lateral drifting error is segmented into a first drifting error and a second drifting error using a predetermined segmentation algorithm. A planning module plans a path or trajectory for a current driving cycle (e.g., planning cycle) to drive the ADV from the current location for a predetermined period of time. The planning module performs a first drifting error correction on the trajectory by modifying at least a starting point of the trajectory based on the first drifting error to generate a modified trajectory. A control module controls the ADV to drive according to the modified trajectory, including performing a second drifting error correction based on the second drifting error.
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