Parking steering assist system and method for correcting parking guideline

Patent metadata

Field	Value
Publication number	US-2017320489-A9
Application number	US-201514925940-A
Country	US
Kind code	A9
Filing date	Oct 28, 2015
Priority date	Jul 20, 2015
Publication date	Nov 9, 2017
Grant date	—

Abstract

A parking steering assistance system is provided that calculates and provides a parking guide line applied with a tire dynamic radius value. The system includes an obstacle recognition unit configured to recognize an obstacle adjacent to a vehicle after parking is completed. A distance calculating unit is configured to calculate distance information between the obstacle and the vehicle, and a parking controller is configured to control a tire dynamic radius correction which is applied when calculating a parking guide line by using the distance information between the obstacle and the vehicle.

First claim

What is claimed is:

1 . A parking steering assistance system for calculating and providing a parking guide line applied with a tire dynamic radius value, the system comprising:
an obstacle recognition unit configured to recognize an obstacle adjacent to a vehicle after parking is completed; a distance calculating unit configured to calculate distance information between the obstacle and the vehicle; and a parking controller configured to control a tire dynamic radius correction which is applied when calculating a parking guide line by using the distance information between the obstacle and the vehicle.

2 . The system of claim 1 , further comprising a storage unit configured to store accumulatively the distance information between the obstacle and the vehicle, and store at least one of a normal tire dynamic radius value, a distance value between the obstacle and the vehicle, a preset reference value, and a tire dynamic radius value correction table which stores a corrected tire dynamic radius value according to a difference between an average of the improved distance value between the obstacle and the vehicle and the improved distance value.

3 . The system of claim 2 , wherein the parking controller calculates an average value of the accumulated distance information between the obstacle and the vehicle, calculates a difference between the average value and the improved distance value, and changes and stores the tire dynamic radius value when the difference between the average value and the improved distance value exceeds the preset reference value.

4 . The system of claim 3 , wherein the parking controller changes the tire dynamic radius value by using the tire dynamic radius value correction table.

5 . The system of claim 3 , wherein the parking controller controls not to calculate the distance information by the distance calculating unit, when the obstacle is not recognized by the obstacle recognition unit or the distance information exceeds a preset value.

6 . A method of correcting a parking guide line in a parking steering assistance system, the method comprising:
calculating the parking guide line by using a tire dynamic radius value; calculating distance information between an obstacle adjacent to a vehicle and the vehicle when parking is completed according to the parking guide line; and controlling a tire dynamic radius correction which is applied when calculating the parking guide line by using the distance information between the obstacle and the vehicle.

7 . The method of claim 6 , further comprising determining whether an obstacle adjacent to the vehicle exists, after the parking is completed.

8 . The method of claim 7 , wherein calculating distance information between an obstacle adjacent to a vehicle and the vehicle comprises not storing the distance information between the obstacle and the vehicle, when the obstacle does not exist, or the distance information between the obstacle and the vehicle exceeds a preset value.

9 . The method of claim 7 , wherein calculating distance information between an obstacle adjacent to a vehicle and the vehicle comprises storing accumulatively the distance information between the obstacle and the vehicle whenever the distance information between the obstacle and the vehicle is calculated.

10 . The method of claim 9 , wherein controlling a tire dynamic radius correction comprises:
calculating an average value of the accumulated and stored distance information between the obstacle and the vehicle; calculating a difference between the average value and a preset improved distance value between the obstacle and the vehicle; comparing the difference and a preset reference value; and changing and storing the tire dynamic radius value of the vehicle when the difference is greater than the preset reference value.

11 . The method of claim 10 , wherein changing and storing the tire dynamic radius value of the vehicle comprises changing the tire dynamic radius value of the vehicle by using a tire dynamic radius value correction table including a pre-stored corrected tire dynamic radius value for each of the difference.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Yu Keun Gyu

Classifications

• B60W2554/00

  Input parameters relating to objects · CPC title

• B60W30/06 Primary

  Automatic manoeuvring for parking · CPC title

• B60Q9/002

  for parking purposes, e.g. for warning the driver that his vehicle has contacted or is about to contact an obstacle (warning arrangements in garages E04H6/42) · CPC title

• B62D15/027 Primary

  Parking aids, e.g. instruction means · CPC title

• B60W2530/20

  Tyre data · CPC title