Advanced driver assist system, vehicle including the same, and method for controlling the same

Patent metadata

Field	Value
Publication number	US-2017115127-A1
Application number	US-201615172866-A
Country	US
Kind code	A1
Filing date	Jun 3, 2016
Priority date	Oct 21, 2015
Publication date	Apr 27, 2017
Grant date	—

Abstract

An advanced driver assist system (ADAS) comprises a user interface (UI) configured to receive a destination from a user; a communicator configured to transmit position information of a vehicle; a route information transmission device configured to calculate a current position of the vehicle based on the position information and to transmit road model information by modeling map information of a traveling route from the calculated current position to the destination; and an ADAS control device configured to output a section residual distance for each road model, a section average valid gradient, and a section average valid curvature using the transmitted road model information.

First claim

What is claimed is:

1 . An advanced driver assist system (ADAS) comprising:
a user interface (UI) configured to receive a destination from a user; a communicator configured to transmit position information of a vehicle; a route information transmission device configured to calculate a current position of the vehicle based on the position information and to transmit road model information by modeling map information of a traveling route from the calculated current position to the destination; and an ADAS control device configured to output a section residual distance for each road model, a section average valid gradient, and a section average valid curvature using the transmitted road model information.

2 . The ADAS according to claim 1 , wherein the route information transmission device includes:
a route information extractor configured to search for the traveling route, to match the searched traveling route to a map, and to extract road modeling database (DB) information; and a road modeler configured to receive the road modeling DB information extracted from the route information extractor and to calculate section information having two types of precisions and a curved road model using a map information linear simplification algorithm, wherein the section information includes a gradient, a curvature, and a vehicle speed.

3 . The ADAS according to claim 2 , wherein the road modeler defines three road shapes on which the vehicle travels, divides the traveling route into a plurality of forward sections, and transmits a section distance for each road model, an average valid gradient, an average valid curvature, and average valid vehicle speed information as an event signal.

4 . The ADAS according to claim 2 , wherein the road modeler divides the traveling route into three forward sections, determines three forward sections of the route in real-time using a section band to a maximum modeling distance, and then transmits a section distance for each road model, an average valid gradient, an average valid curvature, average valid vehicle speed information on the basis of the three forward sections.

5 . The ADAS according to claim 3 , wherein the road modeler continuously transmits road model information for each of three initial proximity forward sections on which the vehicle travels, updates information of a maximum of three forward sections whenever the vehicle passes through one section, and transmits a signal related to the updated result.

6 . The ADAS according to claim 5 , wherein the ADAS control device includes:
a route information corrector configured to receive the road model information from the road modeler, and determine presence or absence of validity of the road model information; and an ADAS controller configured to control various ADAS functions using valid route information determined by the route information corrector.

7 . The ADAS according to claim 6 , wherein the route information corrector stores a forward-section residual distance for each road model of the road model information, a forward-section average valid gradient, a forward-section average valid curvature, and a forward-section average valid vehicle speed.

8 . The ADAS according to claim 1 , wherein the route information transmission device and the ADAS control device communicate with each other through controller area network (CAN) communication.

9 . An ADAS comprising:
a user interface (UI) configured to receive a destination from a user; a communicator configured to transmit position information of a vehicle; a route information extractor configured to calculate a current position of the vehicle based on the position information, to search for a traveling route from the calculated current position to the destination, to match the searched traveling route to a map, and to extract road modeling database (DB) information; a road modeler configured to receive the road modeling DB information extracted from the route information extractor and to calculate a short-distance/long-distance gradient road model and a curved road model using a map information linear simplification algorithm; and a route information corrector configured to determine presence or absence of validity of road model information upon receiving the road model information from the road modeler and to store a forward-section residual distance for each road model of the road model information, a forward-section average valid gradient, a forward-section average valid curvature, and a forward-section average valid vehicle speed.

10 . The ADAS according to claim 9 , further comprising:
an ADAS controller configured to control various ADAS functions using the forward-section residual distance for each road model, the forward-section average valid gradient, the forward-section average valid curvature, and the forward-section average valid vehicle speed.

11 . A method for controlling an advanced driver assist system (ADAS) comprising:
receiving a destination through a user interface (UI); receiving position information of a vehicle through a communicator; calculating, by a route information transmission device, a current position of the vehicle based on the position information, and searching for a traveling route from the calculated current position to the destination; transmitting, by the route information transmission device, road model information by modeling map information of the searched traveling route; and determining, by a route information corrector, presence or absence of validity of the transmitted road model information, and outputting a section residual distance for each road model, a section average valid gradient, and a section average valid curvature.

12 . The method according to claim 11 , wherein the step of transmitting the road model information includes:
extracting road modeling database (DB) information by matching the searched traveling route to a map; and modeling a short-distance/long-distance gradient road model and a curved road model from the extracted road modeling DB information using a map information linear simplification algorithm.

13 . The method according to claim 12 , further comprising:
prior to modeling the short-distance/long-distance gradient road model and curved road model, filtering out the road modeling DB information.

14 . The method according to claim 12 , wherein the step of modeling the road model includes:
defining three road shapes on which the vehicle travels; dividing the traveling route into three forward sections using a section band to a maximum modeling distance; and transmitting a section distance for each road model, an average valid gradient, an average valid gradient, and an average valid vehicle speed as an event signal based on the three forward sections.

15 . The method according to claim 14 , wherein the step of modeling the road model further includes:
transmitting a section distance for each of the three forward sections and an average valid gradient by modeling the gradient road model.

16 . The method according to claim 14 , wherein the step of modeling the road model further includes:
transmitting a section residual distance for each of the three forward sections and an average valid curvature by modeling the curved road model.

17 . The method according to claim 14 , wherein the step of transmitting the event signal includes:
continuously transmitting road model information for each of three initial proximity forward sections on which the vehicle travels; and updating information of a maximum of three f

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Kim Gyungjin
• Yoon Dong Pil
• Choi Kwanghun

Classifications

• B60W30/00

  Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units · CPC title

• G01C21/3605 Primary

  Destination input or retrieval · CPC title

• G01S19/42

  Determining position · CPC title

• B60R16/023 Primary

  for transmission of signals between vehicle parts or subsystems · CPC title

• G01C21/3667

  Display of a road map (G01C21/3614 takes precedence; guidance using 3D or perspective road maps G01C21/3635) · CPC title