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Lane-keeping assist system for a motor vehicle and method for operating a lane-keeping assist system

A technology for lane keeping and assisting systems, applied to vehicle components, steering mechanisms, transportation and packaging, etc., can solve problems such as unfavorable signal/noise ratio, unpredictable stable and accurate trajectory, etc., and achieve high-quality results

Active Publication Date: 2015-08-12
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only extremely unfavorable signal / noise ratios can be obtained even with high-resolution steering angle sensors, with which stable and precise trajectories cannot be predicted

Method used

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  • Lane-keeping assist system for a motor vehicle and method for operating a lane-keeping assist system
  • Lane-keeping assist system for a motor vehicle and method for operating a lane-keeping assist system

Examples

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Embodiment Construction

[0018] figure 1 is a schematic top view and shows a lane 1 on which a motor vehicle 2 is moving along the road surface on the right. The straight line 3 extending in the longitudinal direction shows the trajectory for a steering angle of 0°. exist figure 1 In the state shown, the lane keeping assistance system of motor vehicle 2 is deactivated.

[0019] A trajectory 4 with a steering angle of −1° is shown to the left of the straight line 3 . The right side of line 3 shows trajectory 5 with a steering angle of +1°.

[0020] exist figure 1 As can be seen in , relatively small changes in the steering angle of 1° or 2° already lead to significant inaccuracies in terms of the future lane. Furthermore, the steering angle signal is superimposed by the driver's steering movements, and the trajectory cannot be predicted precisely due to these disturbing influences.

[0021] figure 2 Motor vehicle 2 is shown in lane 1 when the lane keeping assistant is activated. Information ab...

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PUM

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Abstract

The invention relates to a lane-keeping assist system for a motor vehicle, which system can be activated and deactivated and allows steering intervention on an axle by means of active steering. The lane-keeping assist system, when activated, is designed to reduce the speed ratio of the active steering.

Description

technical field [0001] The invention relates to a lane keeping assist system / anti-tracking assist system / lane keeping assist system for a motor vehicle, which can be activated and deactivated and which can be operated by means of a superposition steering system Steering intervention on one axle. Background technique [0002] Lane keeping assist systems belong to the active steering systems of motor vehicles in which an electromechanical system is provided to adjust the steering angle of the steered wheels. [0003] Lane Keeping Assist supports the driver by assuming lateral control of the motor vehicle in its activated state. By sensing the surroundings of the motor vehicle via one or more optical sensors, the lane keeping assistant controls / drives the motor vehicle in a defined driving lane, which is determined on the basis of the perception of the surroundings. The driving lane is the range within the driving trajectory. [0004] For the functioning of the lane keeping...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/00B62D15/02
CPCB62D15/025B62D5/008
Inventor C·穆勒
Owner AUDI AG
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