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Lane-changing system for automated vehicles

An autonomous vehicle, autonomous technology, applied in the field of lane change systems, which can solve problems such as undetectable, inconsistent, and degraded

Active Publication Date: 2018-09-25
DELPHI TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some instances, those features may be inconsistent, degraded, or otherwise undetectable

Method used

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  • Lane-changing system for automated vehicles
  • Lane-changing system for automated vehicles
  • Lane-changing system for automated vehicles

Examples

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Embodiment Construction

[0009] figure 1 A non-limiting example of a lane changing system 10 , hereinafter referred to as system 10 , suitable for use on an automated vehicle, hereinafter referred to as host vehicle 12 , is shown. Generally, the system 10 is configured to operate (ie, drive) the host vehicle 12 in an automated mode 14 whereby the operator 16 of the host vehicle 12 is no more than a passenger. That is, operator 16 is not substantially involved in steering host vehicle 12 or operating accelerator 20 and brakes 22 of host vehicle 12 . It is contemplated that host vehicle 12 may also be operated in a manual mode 24 in which operator 16 is solely responsible for operating host vehicle-controls 26 , or in a partial mode (not shown) in which control of host vehicle 12 is controlled by Operator 16 and controller 28 of system 10 are shared.

[0010] As should be apparent to those skilled in the art, controller 28 may include a processor (not specifically shown) such as a microprocessor or ot...

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Abstract

A lane-changing system (10) suitable for use on an automated host-vehicle (12) includes a camera (32), an inertial-measurement-unit (44), and a controller (28). The camera (32) detects a lane-marking(38) of a roadway (36) traveled by the host-vehicle (12). The inertial-measurement-unit (44) determines relative-motion (46) of the host-host-vehicle (12). The controller (28) is in communication withthe camera (32) and the inertial-measurement-unit (44). While the lane-marking (38) is detected the controller (28) steers the host-vehicle (12) towards a centerline (56) of an adjacent-lane (42) ofthe roadway (36) based on a last-position (60) and a current-vector (62), and determines an offset-vector (64) indicative of motion of the host-vehicle (12) relative to the current-vector (62). Whilethe lane-marking (38) is not detected the controller (28) determines an offset-position (66) relative to the last-position (60) based on information from the inertial-measurement-unit (44), determinesa correction-vector (68) used to steer the host-vehicle (12) from the offset-position (66) towards the centerline (56) of the adjacent-lane (42) of the roadway (36) based on the last-position (60) and the offset-vector (64), and steers the host-vehicle (12) according to the correction-vector (68) towards the centerline (56) of the adjacent-lane (42).

Description

technical field [0001] The present disclosure relates generally to lane changing systems for automated vehicles, and more particularly to using historical vehicle motion information to operate automated vehicles when lane markings are not detected by cameras. Background technique [0002] It is known to use cameras to detect features of the road (eg lane markings and curbs) to operate an automated vehicle (eg to steer the automated vehicle). However, in some instances, those features may be inconsistent, degraded, or otherwise undetectable. In the absence of lane markings, many systems simply disengage and return control to the vehicle operator, even though the lane markings may only be temporarily undetected by the cameras. Contents of the invention [0003] According to one embodiment, an automatic lane changing system suitable for use on an automated vehicle is provided. The system includes a camera, an inertial measurement unit, and a controller. The camera detects ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
CPCG05D1/0223G05D1/0246G01C21/3658G08G1/167B62D15/0255G06V20/588
Inventor P·K·普拉萨德E·萨米伊M·I·介
Owner DELPHI TECH INC