Invention Grant
- Patent Title: Low-speed, backward driving vehicle controller design
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Application No.: US16682445Application Date: 2019-11-13
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Publication No.: US11377112B2Publication Date: 2022-07-05
- Inventor: Yu Wang , Qi Luo , Shu Jiang , Jinghao Miao , Jiangtao Hu , Jingao Wang , Jinyun Zhou , Runxin He , Jiaxuan Xu
- Applicant: Baidu USA LLC
- Applicant Address: US CA Sunnyvale
- Assignee: Baidu USA LLC
- Current Assignee: Baidu USA LLC
- Current Assignee Address: US CA Sunnyvale
- Agency: Womble Bond Dickinson (US) LLP
- Main IPC: B60W50/00
- IPC: B60W50/00 ; G05D1/00 ; B60W30/18

Abstract:
Generating control effort to control an autonomous driving vehicle (ADV) includes determining a direction (forward or reverse) in which the ADV is driving and selecting a driving model and a predictive model based upon the direction. In a forward direction, the driving model is a dynamic model, such as a “bicycle model,” and the predictive model is a look-ahead model. In a reverse direction, the driving model is a hybrid dynamic and kinematic model and the predictive model is a look-back model. Current and predicted lateral error and heading error are determined using the driving model and predictive model, respectively. A linear quadratic regulator (LQR) uses the current and predicted lateral error and heading errors to determine a first control effort An augmented control logic determines a second, additional, control effort, to determine a final control effort that is output to a control module to drive the ADV.
Public/Granted literature
- US20210139038A1 LOW-SPEED, BACKWARD DRIVING VEHICLE CONTROLLER DESIGN Public/Granted day:2021-05-13
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