Driver hands on/off detection during automated lane centering/changing maneuver

A driver, autonomous technology for steering mechanisms, transportation and packaging, vehicle components, etc., that can solve problems such as reducing driver alertness and concentration

Inactive Publication Date: 2010-09-08
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even when such systems provide some or most of the vehicle control, it is generally not desirable to reduce driver vigilance and attention

Method used

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  • Driver hands on/off detection during automated lane centering/changing maneuver
  • Driver hands on/off detection during automated lane centering/changing maneuver
  • Driver hands on/off detection during automated lane centering/changing maneuver

Examples

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Embodiment Construction

[0031] The following discussion of embodiments of the invention of systems and methods for determining whether a driver of a vehicle is holding the steering wheel of a vehicle is merely exemplary in nature and is not intended to limit the invention or its application or use. For example, the invention described below has particular application in determining whether the driver of the vehicle is holding the steering wheel of the vehicle while the vehicle is in an automatic or semi-autonomous driving mode given a lane change or lane centering steering command. However, the present invention can also be applied to vehicle systems other than automatic or semi-automatic systems to determine whether the driver of the vehicle is holding the steering wheel of the vehicle.

[0032] figure 1 is a plan view of a vehicle steering system 10 including a steering wheel 12 for steering wheels 14 and 16 of a vehicle. Steering wheel 12 is connected to wheels 14 and 16 via a steering column 18 ...

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Abstract

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.

Description

technical field [0001] The present invention generally relates to a system and method for detecting whether the driver of a vehicle is holding the steering wheel of a vehicle, and more particularly relates to determining whether a vehicle driver is holding the steering wheel by applying a high-frequency and low-amplitude signal to the steering wheel when the vehicle is in an automatic or semi-autonomous driving mode. A system and method for whether the driver holds the steering wheel of a vehicle, wherein the signal is attenuated when the driver holds the steering wheel, but is detectable by a steering angle sensor when the driver releases the steering wheel. Background technique [0002] The automotive industry is constantly striving to improve the comfort and safety of vehicle occupants, especially the driver. These efforts have resulted in various technologies such as Advanced Driver Assistance Systems (ADAS) and Electronic Stability Control (ESC). Some of the features o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W50/08
CPCB62D15/025B60W50/16
Inventor J·-W·李Y·H·李B·B·利特库希
Owner GM GLOBAL TECH OPERATIONS LLC
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