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1. (US20100228417) DRIVER HANDS ON/OFF DETECTION DURING AUTOMATED LANE CENTERING/CHANGING MANEUVER

专利局 : 美国
申请号: 12399290 申请日: 06.03.2009
公布号: 20100228417 公布日: 09.09.2010
公布类型: A1
国际专利分类:
G06F 7/00
G05D 1/00
G PHYSICS
06
计算;推算;计数
F
电数字数据处理
7
通过待处理的数据的指令或内容进行运算的数据处理的方法或装置
G PHYSICS
05
控制;调节
D
非电变量的控制或调节系统
1
陆地、水上、空中或太空中的运载工具的位置、航道、高度或姿态的控制,例如自动驾驶仪
申请人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
发明人: Lee Jin-Woo
Lee Yong H.
Litkouhi Bakhtiar Brian
代理人: MILLER IP GROUP, PLC;GENERAL MOTORS CORPORATION
优先权数据:
标题: (EN) DRIVER HANDS ON/OFF DETECTION DURING AUTOMATED LANE CENTERING/CHANGING MANEUVER
摘要: front page image
(EN)

A system and method for determining whether a vehicle driver is holding a steering wheel of the vehicle while the vehicle is in an autonomous driving mode. The vehicle will include an electric power steering (EPS) system and may include an active front steering (AFS) system, both of which include a motor that can apply a high frequency and low amplitude perturbation signal to the steering wheel of the vehicle that is not felt by the vehicle driver and does not cause the vehicle to turn, but is able to be detected by a steering angle sensor. The method subtracts a steering angle command signal from the steering angle signal and removes road disturbances, and then determines whether the induced perturbation signal is present in the steering angle sensor signal. If the perturbation signal is present, then the system knows that the vehicle driver is not holding the steering wheel.