KR20120053899A - Automatic setting method for scc velocity based on road traffic data and scc system for vehicle - Google Patents

Automatic setting method for scc velocity based on road traffic data and scc system for vehicle Download PDF

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Publication number
KR20120053899A
KR20120053899A KR1020100115252A KR20100115252A KR20120053899A KR 20120053899 A KR20120053899 A KR 20120053899A KR 1020100115252 A KR1020100115252 A KR 1020100115252A KR 20100115252 A KR20100115252 A KR 20100115252A KR 20120053899 A KR20120053899 A KR 20120053899A
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KR
South Korea
Prior art keywords
speed
scc
information
vehicle
road
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KR1020100115252A
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Korean (ko)
Inventor
이종혁
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현대자동차주식회사
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Priority to KR1020100115252A priority Critical patent/KR20120053899A/en
Publication of KR20120053899A publication Critical patent/KR20120053899A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • 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
    • B60W30/14—Adaptive cruise control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0968—Systems involving transmission of navigation instructions to the vehicle

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Traffic Control Systems (AREA)

Abstract

The present invention is a technology that can control the driving speed (hereinafter referred to as SCC speed) of the vehicle distance control device (SCC; Smart Cruise Control) during driving based on the road information system information when setting the cruise function or speed limit function It is about.
To this end, the SCC speed automatic setting method based on the road traffic information according to the present invention (a) the SCC (Smart Cruise Control) system of the vehicle to set the SCC speed at the speed set by the driver to drive the vehicle at the SCC speed Step (b) monitoring the SCC speed based on road traffic information provided from a road information system; and (c) if a change of the SCC speed is required as a result of the monitoring, the SCC at a speed corresponding to the road traffic information. Resetting the speed, and (d) transmitting the torque control signal corresponding to the reset SCC speed to the ESC system of the vehicle to drive the vehicle at the reset SCC speed.

Description

Automatically setting SC speed based on road traffic information and SC system of vehicle {AUTOMATIC SETTING METHOD FOR SCC VELOCITY BASED ON ROAD TRAFFIC DATA AND SCC SYSTEM FOR VEHICLE}

The present invention relates to a method for automatically setting the SCC speed based on road traffic information and an SCC system of a vehicle. More specifically, the distance control device (SCC) during driving is based on the road information system information when setting the cruise function or the speed limit function. Smart Cruise Control) relates to a technology that can control the driving speed of the vehicle (hereinafter referred to as SCC speed).

As vehicle functions become more advanced, SCC systems and electronic stability control (ESC) systems are being installed to promote vehicle safety. The SCC system is referred to as the distance control device while driving.The SCC system detects several kilometers ahead with a radar sensor mounted in front of the vehicle so that the driver can automatically drive at the speed set by the driver while maintaining a predetermined distance. It provides a cruise function or speed limit function to control the vehicle speed so as not to exceed the speed set by the driver.

This SCC system has the convenience that the driver does not have to continuously operate the accelerator to adjust the vehicle's driving speed, and can prevent the vehicle from traveling beyond the set speed, so that the driver can drive safely. This is the preferred feature. However, this SCC system operates the vehicle only at the speed set by the driver, and if the operation to decelerate the set speed is canceled, the cruise function is canceled and the cruise is continuously made if the driver repeatedly drives and decelerates a certain speed or more. There is a hassle to choose a function.

In addition, since it depends only on the driver's set speed, the vehicle speed reference section (for example, curved road or toll gate), accident section, current weather (for example, heavy rain or heavy snow), forward accidents, etc. are not properly taken into consideration. There is a problem that there is insufficient prevention of safety.

The present invention has been made in view of the above circumstances, and uses the various road information provided from the road information system when setting the cruise function or the speed limit function of the driving vehicle SCC system The purpose is to set the speed automatically.

In accordance with an aspect of the present invention, there is provided a method for automatically setting an SCC speed based on road traffic information, comprising: (a) driving a vehicle at the SCC speed by setting an SCC speed at a speed set by a driver in a vehicle; b) monitoring the SCC speed based on road traffic information provided from a road information system; and (c) resetting the SCC speed to a speed corresponding to the road traffic information if the monitoring result requires a change in the SCC speed. Making; And (d) transmitting a torque control signal corresponding to the reset SCC speed to the ESC system of the vehicle to drive the vehicle at the reset SCC speed.

In addition, the data collection unit for receiving the road traffic information from the road information system according to the present invention, the road speed information table for each road condition where speed limit information for a plurality of road conditions classified from the road traffic information is stored, and the SCC set by the driver It may include a SCC speed setting unit for resetting based on the road traffic information while monitoring the speed, and transmitting a torque control signal corresponding to the reset SCC speed to the ESC system to drive the vehicle at the reset SCC speed.

According to the present invention, the SCC speed is automatically set to match the driving state of the vehicle through various road information provided from the road information system when setting the cruise function of the driving vehicle, thereby providing convenience to the driver. Have

1 is a schematic block diagram of a vehicle to which an SCC speed automatic setting method based on road traffic information according to an embodiment of the present invention is applied,
2 is a flowchart illustrating a method for automatically setting SCC speed based on road traffic information according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of a vehicle to which an SCC speed automatic setting method based on road traffic information according to an embodiment of the present invention is applied.

As shown in FIG. 1, a vehicle to which an SCC control method based on road traffic information according to an exemplary embodiment of the present invention is applied includes a road information system 10, an SCC system 20, and an ESC system 30. .

The road information system 10 transmits road traffic information, for example, surrounding vehicle speed upper limit information, accident occurrence section, current weather, forward accident, vehicle speed fluctuation section information (for example, curved road or toll gate, etc.) to the SCC system 20. to provide. The road information system 10 provides road traffic information (for example, accident information, congestion information, etc.) to a vehicle by navigation or wirelessly providing road situation information or road traffic information of an area which is installed and operated in a vehicle. System or the like. The road traffic information may include speed limit information as needed.

The SCC system 20 controls the SCC speed of the vehicle based on the road traffic information received from the road information system 10. That is, the SCC system 20 determines the necessity of changing the SCC speed of the currently set vehicle based on the road traffic information received from the road information system 10 in a state where the cruise function or the speed function is set, and as a result of the determination, the SCC system 20 If a change in speed is required, a function of providing a torque control signal to the ESC system 30 for automatically changing and setting the SCC speed is performed.

The ESC system 30 transmits a torque request value and a brake signal and the like to an ECU (not shown) under the control of the SCC system 20 to provide a function for the vehicle's running speed to maintain the SCC speed by the ECU. The ESC system 30 is a system for controlling the rotation (lateral movement) of the vehicle that appears during rapid rotation. The ESC system 30 properly controls the braking force of the wheel so that the vehicle travels in the direction intended by the driver. In the embodiment of the present invention, the ESC system 30 outputs a torque request value, a brake signal, and the like related to the torque control signal instructed from the SCC system 20 to the ECU.

As shown in FIG. 1, the SCC system 20 includes a speed setting input unit 21, an SCC speed setting unit 22, a road situation-specific speed information table 23, and a data collection unit 24.

The speed setting input unit 21 receives a setting command for a cruise function or a speed limit function from a driver or receives a release command.

When the cruise function or the speed limit function are set from the speed setting input unit 21, the SCC system 20 sets the SCC speed at the speed of the current vehicle and based on the road traffic information transmitted from the data collection unit 24. Set the SCC speed to the speed limit corresponding to the road conditions. The SCC system 20 transmits a torque control signal for controlling the driving speed of the vehicle at the set SCC speed to the ESC system 30.

The data collection unit 20 performs a function of receiving road traffic information from the road information system 10 and delivering the road traffic information to the SCC speed setting unit 22, and the road information table 23 for each road situation is provided according to each road situation. Store the parameters for the speed limit.

Speed information for each road situation stored in the road speed information table 23 may be, for example, speed limit information for each weather, speed limit information for a curved road, and speed limit information for entering a torch. The road information for each road situation stored in the road situation-specific speed information table 23 may be variously changed as necessary.

SCC speed setting unit 22 according to an embodiment of the present invention, if the road traffic information received from the data collection unit 24 includes the speed limit information based on the speed limit information to set the SCC speed, and collect data If the speed limit information is not included in the road traffic information received from the unit 24, the SCC speed is set based on a parameter stored in the speed information table 23 for each road situation. When the speed limit information is included in the road traffic information, the traffic speed information and the accident information may include the recommended driving speed information.

Hereinafter, a method for automatically setting an SCC speed based on road traffic information according to an embodiment of the present invention will be described in detail with reference to the flowchart attached to FIG. 2.

When the cruise function or the speed limit function is set through the speed setting input unit 21 (S2), the SCC speed setting unit 22 sets the SCC speed at the current driving speed of the vehicle, and the torque control signal corresponding to the SCC speed. To the ESC system 30. In this way, the vehicle being driven can travel while maintaining the SCC speed set at the current travel speed (S4).

In this state, the SCC speed setting unit 22 receives the road traffic information from the data collection unit 24, and performs the SCC speed monitoring for comparing the SCC speed with the speed limit corresponding to the received road traffic information (S6). ).

As a result of the SCC speed monitoring in step S6, when it is confirmed that a state requiring the change of the SCC speed (Yes in S8), the SCC speed setting unit 22 changes and sets the SCC speed to a speed limit corresponding to the received road traffic information ( S10). However, unlike the SCC speed monitoring result of step S6, if it is determined that the change of the SCC speed is not necessary (No in S8), the process proceeds to step S6 to continuously monitor the SCC speed.

Specifically, in step S6, if the speed information is included in the road traffic information received from the data collection unit 24, the SCC speed setting unit 22, the speed limit corresponding to the speed limit information and the currently set SCC speed In comparison, if the speed limit and the currently set SCC speed do not match, change the SCC speed to limit SCC speed. In this process, if the speed limit is lower than the currently set SCC speed, the SCC speed is set to lower to correspond to the speed limit.

For example, when information corresponding to the accident occurrence area entry is collected from the road information system 10, the SCC speed setting unit 22 obtains the speed limit information in the accident occurrence area from the road situation-specific speed information table 23. The extracted speed limit information is compared with the currently set SCC speed. As a result of the comparison, if the SCC speed is higher than the speed limit corresponding to the speed limit information, the SCC speed is reset to the speed limit size. In the above case, the case in which the vehicle entered the accident-prone region has been described. However, when the vehicle leaves the accident-prone region and information corresponding to the accident-progression area departure is collected from the road situation-specific speed information table 23, the SCC speed The setting unit 22 may change the SCC speed to the traveling speed set by the driver in step S4.

Subsequently, the SCC speed setting unit 22 generates a torque control signal corresponding to the changed SCC speed and outputs it to the ESC system 30 (S12). In response to the torque control signal, the ESC system 30 is an ECU (not shown). Outputs a torque request value and a brake signal so that the vehicle travels at the changed SCC speed.

In this state, the SCC speed setting unit 22 determines whether a release command for the cruise function or the speed limit function is input from the speed setting input unit 21 (S16), and as a result of the determination, for the cruise function or the speed limit function. If a release command is input (YES in S16), the above-described series of processes are terminated.

On the contrary, if the release command for the cruise function or the speed limit function is not input (No at S16) as a result of the determination at step S16, the SCC speed setting unit 22 proceeds to step S6 to continue the monitoring function for the SCC speed. Do it.

2 exemplarily illustrates a method for automatically setting SCC speed based on road traffic information according to an exemplary embodiment of the present invention. Some steps may be generated or merged as needed, and the order of specific steps may be changed. .

10: road information system 20: SCC system
21: speed setting input section 22: SCC speed setting section
23: speed information table for each road situation 24: data collection unit
30: ESC system

Claims (5)

(a) driving the vehicle at the SCC speed by setting the SCC speed at a speed set by the driver by the vehicle's Smart Cruise Control (SCC) system;
(b) monitoring the SCC speed based on road traffic information provided from a road information system;
(c) resetting the SCC speed to a speed corresponding to the road traffic information if the SCC speed needs to be changed as a result of the monitoring; And
and (d) transmitting the torque control signal corresponding to the reset SCC speed to the ESC system of the vehicle to drive the vehicle at the reset SCC speed. The method according to claim 1, wherein step (c)
(c-1) If the road traffic information includes speed limit information, the speed limit corresponding to the speed limit information is compared with the speed limit, and the SCC speed needs to be changed if the SCC speed is greater than the speed limit. Judging by; and
and (c-2) resetting the SCC speed to the speed limit. The method according to claim 1 or 2, wherein step (c)
(c-3) When the road traffic information includes the speed limit information, the speed limit corresponding to the speed limit information and the SCC speed are compared. When the SCC speed is less than the speed limit, the change of the SCC speed is performed. Determining that it is necessary; and
and (c-4) resetting the SCC speed to one of the speed limit or the speed set by the driver. A data collection unit for receiving road traffic information from a road information system;
A road speed-specific speed information table storing speed limit information for a plurality of road conditions classified from road traffic information; And
SCC speed setting unit for monitoring the SCC speed set by the driver and resetting based on the road traffic information, and transmitting a torque control signal corresponding to the reset SCC speed to the ESC system to drive the vehicle at the reset SCC speed. SCC system of the vehicle comprising. The method of claim 4, wherein the SCC speed setting unit
If the speed limit information is included in the road traffic information, the SCC speed is reset based on the speed limit information.
If the speed limit information is not included in the road traffic information, the proposed speed information corresponding to the road situation corresponding to the road traffic information is searched from the speed information table for each road situation, and the SCC speed is calculated based on the found speed limit information. SCC system of the vehicle to reset.
KR1020100115252A 2010-11-18 2010-11-18 Automatic setting method for scc velocity based on road traffic data and scc system for vehicle KR20120053899A (en)

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KR1020100115252A KR20120053899A (en) 2010-11-18 2010-11-18 Automatic setting method for scc velocity based on road traffic data and scc system for vehicle

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358330B1 (en) * 2012-09-26 2014-02-12 현대모비스 주식회사 Vehicle control speed apparatus, vehicle control speed system comprising the same and method thereof
CN103770783A (en) * 2012-10-19 2014-05-07 现代摩比斯株式会社 Apparatus and method for predicting curve road enter and smart cruise control system using the same
KR101436399B1 (en) * 2012-10-04 2014-09-01 (주)휴빌론 Method and navigation apparatus for providing safe-driving information according to traffic situation
KR101526679B1 (en) * 2013-08-23 2015-06-05 현대자동차주식회사 System for providing safety driving information
US9718472B2 (en) 2015-05-07 2017-08-01 Hyundai Motor Company Automatic vehicle speed control apparatus and method
CN111907522A (en) * 2019-05-07 2020-11-10 现代摩比斯株式会社 Vehicle SCC system based on complex information and control method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358330B1 (en) * 2012-09-26 2014-02-12 현대모비스 주식회사 Vehicle control speed apparatus, vehicle control speed system comprising the same and method thereof
US8996269B2 (en) 2012-09-26 2015-03-31 Hyundai Mobis Co., Ltd. Vehicle speed control apparatus, vehicle speed control system comprising the same and vehicle speed control method
KR101436399B1 (en) * 2012-10-04 2014-09-01 (주)휴빌론 Method and navigation apparatus for providing safe-driving information according to traffic situation
CN103770783A (en) * 2012-10-19 2014-05-07 现代摩比斯株式会社 Apparatus and method for predicting curve road enter and smart cruise control system using the same
KR101526679B1 (en) * 2013-08-23 2015-06-05 현대자동차주식회사 System for providing safety driving information
US9718472B2 (en) 2015-05-07 2017-08-01 Hyundai Motor Company Automatic vehicle speed control apparatus and method
CN111907522A (en) * 2019-05-07 2020-11-10 现代摩比斯株式会社 Vehicle SCC system based on complex information and control method thereof

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