Invention Grant
- Patent Title: Feedback based real time steering calibration system
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Application No.: US16646958Application Date: 2020-01-23
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Publication No.: US11713057B2Publication Date: 2023-08-01
- Inventor: Fan Zhu , Bei Liu , Xin Xu , Lin Ma
- Applicant: Baidu USA LLC , Baidu.com Times Technology (Beijing) Co., Ltd.
- Applicant Address: US CA Sunnyvale
- 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/CN2020/073969 2020.01.23
- International Announcement: WO2021/147070A 2021.07.29
- Date entered country: 2020-03-12
- Main IPC: B60W60/00
- IPC: B60W60/00 ; B60W50/10 ; B60W50/06 ; B60W10/20

Abstract:
A lateral control error of a steering system of an ADV is determined, which includes iteratively performing following operations for a predetermined time period. Whether the ADV is moving within a predetermined proximity of a current moving direction is determined. Next, whether a road condition of a road on which the ADV is driving satisfies a predetermined road condition is determined. Then, a first steering feedback of the ADV in response to a prior steering control command is measured. Thereafter, the lateral control error is determined based on at least a portion of the first steering feedback over the predetermined time period. Further, a steering command in view of the lateral control error of the steering system is generated. Finally, the steering command is applied to control the ADV to compensate the lateral control error of the steering system.
Public/Granted literature
- US20210229704A1 A FEEDBACK BASED REAL TIME STEERING CALIBRATION SYSTEM Public/Granted day:2021-07-29
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