System and method for estimating driving lane of vehicle

Patent metadata

Field	Value
Publication number	US-2016159349-A1
Application number	US-201514957120-A
Country	US
Kind code	A1
Filing date	Dec 2, 2015
Priority date	Dec 3, 2014
Publication date	Jun 9, 2016
Grant date	—

Abstract

A system for estimating a driving lane of a vehicle includes a road surface marking recognizing unit configured to recognize a road surface marking of a lane in which the vehicle is driving, a lane change determining unit configured to calculate a variation in a distance between the vehicle and the recognized road surface marking at a pre-set time interval, and compare the calculated variation with a preset value to generate lane change information. The system also includes a driving lane estimating unit configured to estimate the driving lane of the vehicle on the basis of information of the lane in which the vehicle is driving and the lane change information.

First claim

What is claimed is:

1 . A system for estimating a driving lane of a vehicle, the system comprising:
a road surface marking recognizing unit configured to recognize a road surface marking of a lane in which the vehicle is driving; a lane change determining unit configured to:
calculate a variation in a distance between the vehicle and the recognized road surface marking at a preset time interval, and
compare the calculated variation with a preset value to generate lane change information; and
a driving lane estimating unit configured to estimate the driving lane of the vehicle on the basis of information of the lane in which the vehicle is driving and the lane change information.

2 . The system of claim 1 , wherein the lane change determining unit generates the lane change information comprising information whether the calculated variation is equal to or greater than the preset value and information regarding a movement direction of the vehicle.

3 . The system of claim 1 , wherein the lane change determining unit generates the lane change information comprising information regarding a direction in which the distance between the vehicle and the recognized road surface marking decreased when the calculated variation is equal to or greater than the preset value.

4 . The system of claim 1 , wherein the lane change determining unit calculates a variation in a shortest distance between a center of the vehicle and the recognized road surface marking at the preset time interval.

5 . The system of claim 1 , wherein the lane change determining unit adjusts the preset time interval in inverse proportion to a velocity of the vehicle and calculates a variation in the distance between the vehicle and the recognized road surface marking.

6 . The system of claim 1 , wherein the lane change determining unit sets the preset value on the basis of a width of the lane comprised in a road on which the vehicle is driving.

7 . The system of claim 1 , wherein when the calculated variation is equal to or greater than the preset value, the driving lane estimating unit estimates that the driving lane of the vehicle has been changed in a movement direction of the vehicle.

8 . The system of claim 1 , wherein when it is determined that the vehicle has entered a right-most lane of an expressway, the driving lane estimating unit sets the driving lane according to a number of lanes of the expressway, and estimates the driving lane of the vehicle according to the lane change information generated by the lane change determining unit.

9 . The system of claim 1 , wherein the road surface marking recognizing unit recognizes a road surface marking closest to the vehicle among road surface markings positioned on at least one of the left and the right of the vehicle.

10 . A method for estimating a driving lane of a vehicle, the method comprising:
recognizing a road surface marking of a lane in which the vehicle is driving; calculating a variation in a shortest distance between a center of the vehicle and the recognized road surface marking at a preset time interval; comparing the calculated variation with a preset value and estimating the driving lane of the vehicle according to a comparison result; and providing information regarding the estimated driving lane to a navigation device installed in the vehicle.

11 . The method of claim 10 , wherein the estimating of the driving lane of the vehicle according to the comparison result further comprises estimating that the driving lane of the vehicle has changed in a direction in which a distance between the vehicle and the recognized road surface marking decreased when the calculated variation is equal to or greater than the preset value.

12 . The method of claim 10 , wherein the estimating of the driving lane of the vehicle according to the comparison result further comprises setting the driving lane of the vehicle according to a number of lanes of the expressway when it is determined that the vehicle has entered a right-most lane of the expressway, and estimating the driving lane of the vehicle according to a result obtained by comparing the calculated variation with the preset value.

13 . The method of claim 10 , wherein the calculating of a variation in shortest distance between the center of the vehicle and the recognized road surface marking at the preset time interval further comprises adjusting the preset time interval according to a driving speed of the vehicle and calculating a variation in shortest distance between the center of the vehicle and the recognized road surface marking.

14 . The method of claim 10 , wherein the recognizing of a road surface marking of the lane in which the vehicle is driving further comprises recognizing a road surface marking closest to the vehicle among road surface markings positioned on at least one of the left and the right of the vehicle through a camera sensor installed in the vehicle.

15 . The method of claim 10 , further comprising providing information regarding the estimated driving lane to a navigation device installed in the vehicle.

Assignees

• Hyundai Mobis Co Ltd

Inventors

• Jo Yun Jung
• Kim Du Hyung
• Ji Yong Kwan

Classifications

• B60W30/18163 Primary

  Lane change; Overtaking manoeuvres · CPC title

• B60W2556/50

  of positioning data, e.g. GPS [Global Positioning System] data · CPC title

• B60W40/02 Primary

  related to ambient conditions · CPC title

• B60R2300/804

  for lane monitoring · CPC title

• B60R1/00

  Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles · CPC title