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System and method for smooth steering override transition during automated lane centering

An automatic steering system and steering control technology, applied to automatic steering control components, steering control, steering mechanisms, etc., can solve problems such as bumps, sudden movement of the steering wheel, and oversteering of the driver

Active Publication Date: 2013-03-20
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the driver may oversteer in an attempt to take control of the vehicle, and the vehicle's steering override detection system may lag behind the steering wheel input causing sudden movements or jerks of the steering wheel

Method used

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  • System and method for smooth steering override transition during automated lane centering
  • System and method for smooth steering override transition during automated lane centering
  • System and method for smooth steering override transition during automated lane centering

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Embodiment Construction

[0048] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.

[0049]Unless specifically stated otherwise, it will be apparent from the following discussion that terms used in the discussion of the specification - such as "processing", "computing", "storing", "calculating", "determining", "evaluating", "measuring" , "provide", "transfer", "output", "input", etc. mean the actions and / or programs of a computer or computing system or similar electronic computing devices, which will be expressed as registers and / or programs of computing systems or data manipulation and / or transformation of physical quantities s...

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PUM

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Abstract

The invention relates to a system and a method for smooth steering override transition during automated lane centering. Vehicle steering measurements of a vehicle may be measured. Expected vehicle steering measurements may be calculated, each calculated expected vehicle steering measurement corresponding to one of the measured vehicle steering measurements. At least one difference between one of the measured vehicle steering measurements and its corresponding calculated expected vehicle steering measurement may be calculated. A lower boundary and an upper boundary of at least one override transition zone, each of the override transition zones corresponding to one of the measured vehicle steering measurements and its corresponding calculated expected vehicle steering measurement, may be calculated. Steering control of the vehicle may be gradually transferred from an automatic vehicle control system to a driver of the vehicle over a predetermined period of time when one or more of the calculated differences lie between the calculated lower boundary and the calculated upper boundary of the corresponding override transition zone.

Description

technical field [0001] The present invention relates to methods and systems for using a combination of data such as steering angle, steering torque, vehicle speed, and other data to provide a smooth transition when overriding an automatic steering system or method. Background technique [0002] Many vehicles are equipped with autonomous and / or semi-autonomous driving systems, applications and / or features. Autonomous and semi-autonomous driving systems provide automated driving controls that reduce the amount of driver action required to steer the vehicle. Automatic lane centering methods, features and applications, for example, can be activated by the driver and can maintain the vehicle's position in the center of the lane when the vehicle is in motion. Adaptive lane centering systems may maintain a constant lane offset, or vehicle position, relative to the lanes on the road the vehicle is traveling on. Adaptive lane centering systems can reduce driver fatigue and increase...

Claims

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Application Information

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IPC IPC(8): B62D6/00B62D101/00B62D113/00B62D119/00
CPCB62D15/025B62D1/286B60T2201/08B60T2201/087B60W40/08B60W2520/14B62D6/00
Inventor J-W.李B.B.里特考希
Owner GM GLOBAL TECH OPERATIONS LLC