Invention Grant
- Patent Title: Preview lateral control for automated driving
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Application No.: US15044851Application Date: 2016-02-16
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Publication No.: US09731755B1Publication Date: 2017-08-15
- Inventor: Nikolai K. Moshchuk , Shih-Ken Chen , Bakhtiar B. Litkouhi
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Miller IP Group, PLC
- Agent John A. Miller
- Main IPC: B62D6/00
- IPC: B62D6/00 ; G05D1/02 ; G05D1/00

Abstract:
A method for providing vehicle lateral steering control. The method includes providing a mathematical model of vehicle dynamics that includes a state variable, a steering control variable and a future road disturbance factor that defines the upcoming road curvature, banks and slopes of the roadway. The method determines an optimal steering control signal that includes a feedback portion and a feed-forward portion, where the feed-forward portion includes the road disturbance factor. The method determines a state variable and a control variable for the current roadway curvature, bank and slope for stationary motion of the vehicle for constant speed, yaw rate and lateral velocity. The method then introduces a new state variable and control variable for dynamic vehicle motion for variable speed, yaw rate and lateral velocity that is a difference between the state and control variables for predicted future times and the steady state variables.
Public/Granted literature
- US20170233001A1 PREVIEW LATERAL CONTROL FOR AUTOMATED DRIVING Public/Granted day:2017-08-17
Information query
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