Invention Grant
US07756620B2 Methods, systems, and computer program products for tire slip angle limiting in a steering control system
有权
用于转向控制系统中轮胎滑移角限制的方法,系统和计算机程序产品
- Patent Title: Methods, systems, and computer program products for tire slip angle limiting in a steering control system
- Patent Title (中): 用于转向控制系统中轮胎滑移角限制的方法,系统和计算机程序产品
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Application No.: US11556769Application Date: 2006-11-06
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Publication No.: US07756620B2Publication Date: 2010-07-13
- Inventor: Edward J. Bedner , Chester W. Gryczan
- Applicant: Edward J. Bedner , Chester W. Gryczan
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations, Inc.
- Current Assignee: GM Global Technology Operations, Inc.
- Current Assignee Address: US MI Detroit
- Agency: Cantor Colburn LLP
- Main IPC: B62D5/04
- IPC: B62D5/04

Abstract:
A method, system, and computer program product for tire slip angle limiting in a steering control system for a vehicle are provided. The method includes calculating a first steering augmentation angle from a vehicle speed and a handwheel angle. The method further includes calculating an upper bound angle limit and a lower bound angle limit as functions of a vehicle slip angle and a tire slip angle limit. The method also includes bounding the sum of the handwheel angle plus the first steering augmentation angle between the upper bound angle limit and the lower bound angle limit to produce a first bounded angle. The method additionally includes subtracting the sum of the handwheel angle plus the first steering augmentation angle from the first bounded angle to produce a first limiting function, and producing a motor angle command by adding the first limiting function plus the first steering augmentation angle.
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