US-12617403-B2 - Method and device for controlling driving speed of vehicle

US12617403B2US 12617403 B2US12617403 B2US 12617403B2US-12617403-B2

Abstract

The disclosure relates to technology for controlling a vehicle through determination of cut-in and provides a vehicle control device and method including receiving detection information related to a host vehicle and a surrounding vehicle, determining the cut-in intent of the surrounding vehicle based on the detection information to determine whether there is a cut-in ready vehicle and, when there is a cut-in ready vehicle, determining whether there is the cut-in vehicle based on the location in the lane of the cut-in ready vehicle.

Inventors

Yong Hwan Kim

Assignees

HL KLEMOVE CORP.

Dates

Publication Date: 20260505
Application Date: 20240815

Claims (14)

1 . A vehicle control device for controlling a driving speed of a vehicle at an intersection, comprising: an information obtainer obtaining a remaining time output from a time indicator of a pedestrian traffic light, a driving speed of the vehicle, and distance information, in a driving direction of the vehicle, to a vehicle traffic light installed at the intersection; a determiner calculating an expected time required for the vehicle to pass through the intersection, and determining whether the vehicle may pass through the vehicle traffic light based on the expected time and the remaining time; and a controller controlling a driving speed of the vehicle based on a determination result of the determiner, wherein the determiner calculates the expected time based on information about whether there is at least one other vehicle present between the vehicle and the vehicle traffic light in addition to the distance information to the vehicle traffic light and the driving speed.
2 . The vehicle control device of claim 1 , wherein the pedestrian traffic light is a traffic light located at a crosswalk parallel to a driving direction of the vehicle.
3 . The vehicle control device of claim 1 , wherein the expected time is calculated based on the distance information and the driving speed when a number of the at least one other vehicles present between the vehicle and the vehicle traffic lights is less than a first value.
4 . The vehicle control device of claim 1 , wherein the determiner determines that the vehicle may not pass when the remaining time is less than the expected time or when a number of the at least one other vehicles present between the vehicle and the vehicle traffic light is larger than or equal to a first value.
5 . The vehicle control device of claim 1 , wherein the determiner determines that the vehicle may pass when the remaining time is larger than or equal to the expected time and a number of the at least one other vehicle present between the vehicle and the vehicle traffic light is less than a first value.
6 . The vehicle control device of claim 5 , wherein the controller controls to accelerate the driving speed of the vehicle when the determination result of the determiner is that the vehicle may pass and a difference between the remaining time and the expected time is less than a second value.
7 . A vehicle control method, comprising: obtaining a remaining time output from a time indicator of a pedestrian traffic light, a driving speed of a vehicle, and distance information, in a driving direction of the vehicle, to a vehicle traffic light installed at the intersection; calculating an expected time required for the vehicle to pass through an intersection, and determining whether the vehicle may pass through the vehicle traffic light based on the expected time and the remaining time; and controlling a driving speed of the vehicle based on a determination result of determining whether the vehicle may pass through the vehicle traffic light, wherein the expected time is calculated based on information about whether there is at least one other vehicle present between the vehicle and the vehicle traffic light in addition to the distance information to the vehicle traffic light and the driving speed.
8 . The vehicle control method of claim 7 , wherein the pedestrian traffic light is a traffic light located at a crosswalk parallel to a driving direction of the vehicle.
9 . The vehicle control method of claim 7 , wherein the expected time is calculated based on the distance information and the driving speed when a number of the at least one other vehicles present between the vehicle and the vehicle traffic lights is less than a first value.
10 . The vehicle control method of claim 7 , wherein determining whether the vehicle may pass through the vehicle traffic light determines that the vehicle may not pass when the remaining time is less than the expected time or when a number of the at least one other vehicles present between the vehicle and the vehicle traffic light is larger than or equal to a first value.
11 . The vehicle control method of claim 7 , wherein determining whether the vehicle may pass through the vehicle traffic light determines that the vehicle may pass when the remaining time is larger than or equal to the expected time and a number of the at least one other vehicle present between the vehicle and the vehicle traffic light is less than a first value.
12 . The vehicle control method of claim 11 , wherein controlling a driving speed of the vehicle controls to accelerate the driving speed of the vehicle when the determination result of the determiner is that the vehicle may pass and a difference between the remaining time and the expected time is less than a second value.
13 . A vehicle control device for controlling a driving speed of a vehicle at an intersection, comprising: an information obtainer obtaining a remaining time output from a time indicator of a pedestrian traffic light, which is a traffic light located at a crosswalk parallel to a driving direction of the vehicle, through image or photo information captured through a capturing means equipped with the vehicle; a determiner calculating an expected time required for the vehicle to pass through the intersection, and determining whether the vehicle may pass through the vehicle traffic light based on the expected time and the remaining time; and a controller controlling a driving speed of the vehicle based on a determination result of the determiner.
14 . The vehicle control device of claim 13 , wherein the information obtainer further obtains a driving speed of the vehicle, and distance information, in a driving direction of the vehicle, to a vehicle traffic light installed at the intersection, wherein the determiner calculates the expected time based on information about whether there is at least one other vehicle present between the vehicle and the vehicle traffic light in addition to the distance information to the vehicle traffic light and the driving speed.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims priority from Korean Patent Application No. 10-2024-0020810, filed on Feb. 14, 2024, which is hereby incorporated by reference for all purposes as if fully set forth herein. BACKGROUND Field The disclosure relates to technology for controlling the driving speed of a vehicle passing through an intersection. Description of Related Art If the traffic light is red, the driver must stop the vehicle before the stop line, and if the traffic light is yellow, the driver must stop before the stop line or rush to pass. Currently, there is no way to check the time remaining before the traffic light changes from green to red by looking at the traffic light alone, so the driver of a vehicle recklessly entering the intersection even when the traffic light has changed from green to yellow or red may end up stopping in the middle of the intersection, causing disturbance of other vehicles, or a traffic accident. Conventionally, vehicle control has been performed by detecting the color of the traffic light located ahead or recognizing the arrow of the traffic light through a capturing means or a sensing means. However, it is difficult to accurately determine the time when the traffic light changes, leading to reckless entry of the vehicle into the intersection. BRIEF SUMMARY The disclosure provides technology for controlling the driving speed of a vehicle passing through an intersection. In an aspect, the present embodiments provide a vehicle control device for controlling a driving speed of a vehicle at an intersection, comprising an information obtainer obtaining a remaining time output from a time indicator of a pedestrian traffic light, a determiner calculating an expected time required for the vehicle to pass through the intersection, and determining whether the vehicle may pass through the vehicle traffic light based on the expected time and the remaining time, and a controller controlling a driving speed of the vehicle based on a determination result of the determiner. In another aspect, the present embodiments provide a vehicle control method for controlling a driving speed of a vehicle passing through an intersection, by a vehicle control device, comprising obtaining a remaining time output from a time indicator of a pedestrian traffic light, calculating an expected time required for the vehicle to pass through an intersection, and determining whether the vehicle may pass through the vehicle traffic light based on the expected time and the remaining time, and controlling a driving speed of the vehicle based on a determination result of determining whether the vehicle may pass through the vehicle traffic light. The disclosure may provide technology for controlling the driving speed of a vehicle passing through an intersection. DESCRIPTION OF DRAWINGS The above and other objects, features, and advantages of the disclosure will be more clearly understood from the following detailed description, taken in conjunction with the accompanying drawings, in which: FIG. 1 is a view illustrating a configuration of a device for controlling a driving speed of a vehicle passing through an intersection, according to an embodiment; FIG. 2 is a flowchart illustrating a process of controlling, by a vehicle control device, a driving speed of a vehicle passing through an intersection, according to an embodiment; FIG. 3 is a flowchart illustrating an entire process of controlling, by a vehicle control device, a driving speed of a vehicle passing through an intersection, according to an embodiment; and FIG. 4 is a view illustrating a method for controlling, by a vehicle control device, a driving speed of a vehicle passing through an intersection, according to an embodiment. DETAILED DESCRIPTION In the following description of examples or embodiments of the disclosure, reference will be made to the accompanying drawings in which it is shown by way of illustration specific examples or embodiments that can be implemented, and in which the same reference numerals and signs can be used to designate the same or like components even when they are shown in different accompanying drawings from one another. Further, in the following description of examples or embodiments of the disclosure, detailed descriptions of well-known functions and components incorporated herein will be omitted when it is determined that the description may make the subject matter in some embodiments of the disclosure rather unclear. The terms such as “including”, “having”, “containing”, “constituting” “make up of”, and “formed of” used herein are generally intended to allow other components to be added unless the terms are used with the term “only”. As used herein, singular forms are intended to include plural forms unless the context clearly indicates otherwise. Terms, such as “first”, “second”, “A”, “B”, “(A)”, or “(B)” may be used herein to describe elements of the disclosure. Each of these terms is not used to