Invention Grant
- Patent Title: Method to control a vehicle path during autonomous braking
- Patent Title (中): 在自动制动期间控制车辆路径的方法
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Application No.: US14202497Application Date: 2014-03-10
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Publication No.: US09233692B2Publication Date: 2016-01-12
- Inventor: Chad T. Zagorski
- 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: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: G05D3/00
- IPC: G05D3/00 ; B60W40/114 ; B60W40/068 ; B62D6/04 ; B60T7/12

Abstract:
Methods, systems are provided for controlling a travel path of a vehicle. The method includes the steps of detecting a braking of the vehicle by a computing device, calculating a friction ellipse for the vehicle based on the current state of the vehicle, defecting an intended travel path of the vehicle, detecting an actual travel path of the motor vehicle during the braking and determining if there is a path error where the actual travel path is outside the intended travel path when the braking is detected. When the actual travel path is outside the intended travel path then the method calculates a prospective friction ellipse for the vehicle, determines a compensating yaw moment to correct the path error, determines a maximum acceleration based on the prospective friction ellipse, and transmits a command to the autonomous braking system based on the maximum acceleration and the compensating yaw moment.
Public/Granted literature
- US20150251664A1 METHOD TO CONTROL A VEHICLE PATH DURING AUTONOMOUS BRAKING Public/Granted day:2015-09-10
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