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

官庁 : アメリカ合衆国
出願番号: 12399290 出願日: 06.03.2009
公開番号: 20100228417 公開日: 09.09.2010
公報種別: A1
IPC:
G06F 7/00
G05D 1/00
G 物理学
06
計算;計数
F
電気的デジタルデータ処理
7
取扱うデータの順序または内容を操作してデータを処理するための方法または装置
G 物理学
05
制御;調整
D
非電気的変量の制御または調整系
1
陸用,水用,空中用,宇宙用運行体の位置,進路,高度または姿勢の制御,例.自動操縦
出願人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
発明者: Lee Jin-Woo
Lee Yong H.
Litkouhi Bakhtiar Brian
代理人: MILLER IP GROUP, PLC;GENERAL MOTORS CORPORATION
優先権情報:
発明の名称: (EN) DRIVER HANDS ON/OFF DETECTION DURING AUTOMATED LANE CENTERING/CHANGING MANEUVER
要約: 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.