KR20190012851A - Apparatus and method for preventing vehicle collision - Google Patents

Abstract

The present invention relates to an apparatus and a method for preventing a vehicle collision. The apparatus for preventing a vehicle collision comprises: a detection unit detecting driving environment information of a subject vehicle, and detecting driving information of a vehicle and a barrier placed in the front or a side direction of the subject vehicle; a determination unit determining a driving road on which the subject vehicle is driven on the basis of the detected information and a road situation of a vehicle adjacent to the driving road, and selecting a first vehicle or a second vehicle by predicting a proceeding direction of the detected vehicle; a calculation unit calculating a collision risk by calculating a driving speed of the subject vehicle and a transverse speed of the first vehicle or the second vehicle; and a warning unit outputting an emergency braking alarm when the collision risk is more than a first threshold value.

Description

[0001] APPARATUS AND METHOD FOR PREVENTING VEHICLE COLLISION [0002]

The present invention relates to an apparatus and a method for preventing a collision with a vehicle or an obstacle located ahead of the vehicle while the vehicle is running.

An emergency braking system such as an AEB (Advanced Emergency Brake) system detects and warns the risk of a collision with a preceding vehicle, thereby performing a braking assist and an emergency automatic braking of the driver. At this time, the collision prediction time (TTC, time-to-collision) at which the subject vehicle is expected to collide with the preceding vehicle is determined by the distance between the subject vehicle and the preceding vehicle. The timing of auxiliary and emergency automatic braking and the like can be determined.

Such an emergency braking system is operated based on a technique of monitoring a nearby vehicle through a plurality of radar and stereo cameras located at the front, side, and rear of the vehicle.

However, in the conventional emergency braking system, most of the techniques are prepared to cope with the risk of collision with a forward vehicle in the same lane as that of the vehicle. This is because it is difficult to cope with a collision situation caused by another vehicle There is a limit.

For example, in a case where a forward vehicle traveling on a side road adjacent to a lane on which the child vehicle is traveling frequently interferes with the child vehicle on the front side of the child vehicle, a collision occurs frequently. In addition, since the front vehicle located in the same lane as the subject vehicle can not secure the field of view of the subject vehicle, it often occurs that the subject vehicle collides without sensing the other vehicle suddenly interfering with the lorry of the subject vehicle.

Therefore, in recent years, an emergency braking system using a sensor fusion system using radar, a rider, and a camera sensor has been developed, but a technique capable of easily preparing for the various collision risk situations as described above is needed.

The present invention, which is devised from the background described above, proposes an apparatus and a method for preventing collision with a vehicle or an obstacle located ahead of the user while driving.

In addition, the present invention proposes an apparatus and method for preventing collision by a front vehicle that changes lanes by judging a driving situation using a radar and a camera.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an anti-collision apparatus comprising: a sensing unit that senses driving environment information of a vehicle, senses driving information of a vehicle and an obstacle located at a front or a side of the vehicle, A determination unit for determining a road condition of a driving lane on which the subject vehicle travels and an adjacent lane adjacent to the driving lane and selecting a first vehicle or a second vehicle by predicting the traveling direction of the vehicle, An arithmetic unit for calculating a running speed of the vehicle and a lateral speed of the first vehicle or the second vehicle to calculate a collision risk and an alarm unit for outputting an emergency braking alarm if the collision risk is equal to or greater than a first threshold value.

According to another aspect of the present invention, there is provided a collision avoidance method including sensing a driving environment information of a vehicle, sensing a driving information of a vehicle and an obstacle located at a front or a side of the vehicle, A determining step of determining a road condition of a driving lane on which the subject vehicle travels and an adjacent lane adjacent to the driving lane and selecting a first vehicle or a second vehicle by predicting a traveling direction of the vehicle, An arithmetic step of calculating a collision risk by calculating a traveling speed of the vehicle and a lateral speed of the first vehicle or the second vehicle; and an alarm step of outputting an emergency braking alarm when the collision risk is equal to or greater than a first threshold value can do.

As described above, according to the present invention, it is possible to provide convenience of operation by controlling the alarm to prevent collision with the preceding vehicle.

In addition, it improves the accuracy of the risk of collision by the front vehicles that are not secured in the field of view, thereby preventing accidents.

Fig. 1 is a diagram showing a general example of a forward collision caused by a vehicle attempting to change lanes.
2 is a block diagram of a configuration of an anti-collision apparatus according to an embodiment of the present invention.
3 is a flowchart for explaining a method for preventing collision with a first vehicle according to an embodiment of the present invention.
4 is an example of a self-vehicle running in a method of preventing collision with a first vehicle according to an embodiment of the present invention.
5 is a flowchart illustrating a method for preventing collision with a second vehicle according to an embodiment of the present invention.
FIG. 6 is a view showing another example of a self-vehicle running in a method of preventing collision with a second vehicle according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various elements, components and / or sections, it is needless to say that these elements, components and / or sections are not limited by these terms. These terms are only used to distinguish one element, element or section from another element, element or section. Therefore, it goes without saying that the first element, the first element or the first section mentioned below may be the second element, the second element or the second section within the technical spirit of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms "comprises" and / or "made of" means that a component, step, operation, and / or element may be embodied in one or more other components, steps, operations, and / And does not exclude the presence or addition thereof.

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

Fig. 1 is a diagram showing a general example of a forward collision caused by a vehicle attempting to change lanes.

1 (a) shows a state in which the first vehicle 12 running on the adjacent lane 120 adjacent to the lane 110 while the child vehicle 11 is running tries to change lanes to the lane 110, And a front collision with the first vehicle 12 that occurs when the vehicle 11 is pinched in front of the vehicle.

1B shows a front vehicle 13 running on the same lane 110 as the child vehicle 11 and a second vehicle 14 on the front side of the front vehicle 13, When the vehicle 11 is unable to secure the field of view for the second vehicle 14 due to the front vehicle 13 attempting to change the lane to the adjacent lane 130 while the vehicle is driving, (14). ≪ / RTI >

That is, most of the conventional emergency braking systems are designed to cope with the risk of collision with a forward vehicle traveling in the traveling lane 110 on which the vehicle 11 travels, There is a limitation in that it can not be easily coped with in a forward collision situation caused by the other vehicles 12, 13 that intervene in the lanes 120, 130 or change lanes to the adjacent lanes 120, 130.

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to an anti-collision apparatus and method that includes a technique capable of easily preventing the above-described various collision risk situations.

2 is a block diagram of a configuration of an anti-collision apparatus 200 according to an embodiment of the present invention.

2, a collision avoidance apparatus 200 according to the present invention includes a sensing unit 210 that senses driving environment information of a vehicle, senses driving information of a vehicle and an obstacle located at a front side or a side of the vehicle, And a controller for determining the road condition of the driving lane on which the subject vehicle travels and the adjacent lane adjacent to the driving lane on the basis of the sensed information and estimating the traveling direction of the vehicle so as to select the first vehicle or the second vehicle (230) for calculating a collision risk by calculating a traveling speed of the vehicle, a lateral velocity of the first vehicle, or a lateral velocity of the second vehicle, and a calculation unit The warning unit 240 outputs an emergency braking alarm.

The collision avoidance apparatus 200 according to the present invention may further include an output unit 250 for outputting a control signal for controlling the braking of the sub-vehicle if the collision risk is equal to or greater than a second threshold value.

Specifically, the sensing unit 210 may include at least one of a rider, a radar, and a camera device, but is not limited thereto. That is, the sensing unit 210 may detect an obstacle and a vehicle located in the vicinity of the subject vehicle, and detect the traveling speed, the traveling direction, and the front wheel angle of the vehicle.

The sensing unit 210 may detect the distance to the vehicle and the obstacle located in front of the subject vehicle and transmit the detected distance to the operation unit 230 through the determination unit 220.

At this time, the camera of the sensing unit 210 may capture an image outside the subject vehicle, recognize an object (obstacle) adjacent to the subject vehicle, and photograph an image in front of the subject vehicle. In addition, the camera can distinguish roads on which the vehicle travels, and can photograph and recognize various objects (vehicles) existing on the roads. That is, the camera can recognize the lane on the road, recognize the lane between the lane and the lane through the recognized lane, and can recognize the lane between the lane and the lane, The adjacent lane can be easily recognized.

At this time, the camera may be installed on the front glass of the child vehicle to detect an image of a road on which the child vehicle travels and an image around the child vehicle, and may include a vision controller for signal processing an image signal . The image sensor provided in the camera may include any one of an electronic coupling device (CCD) and a CMOS, and the image detected through the camera includes a lane, a lane, a shoulder, a lead, and an obstacle And may include the direction of travel of the vehicles, particularly those that are perceived as obstacles, and the wheel angle of the front wheels.

In addition, the camera may change the shooting direction up and down and / or left and right, and the camera may include a camera device for capturing an image, a processor for processing the captured image, and a memory for storing data.

The radar of the sensing unit 210 emits a radio wave in a direction of directivity to receive a reflected wave that collides with an obstacle (vehicle) existing in the periphery of the vehicle, thereby detecting a relative position of the obstacle relative to the vehicle, And the relative speed can be calculated. That is, the radar emits an electromagnetic wave to a specific object (the first vehicle, the front vehicle, and the second vehicle (forward vehicle)), receives the electromagnetic wave reflected from the specific object, Direction, speed, and so on.

Further, the radar may sense the direction, speed, etc. of the vehicle traveling in the left or right lane adjacent to the lane on which the vehicle runs and the lane. At this time, the left lane is the left adjacent lane of the driving lane, and the right lane is the right lane adjacent to the lane of the driving lane.

At this time, the radar is generally disposed at the front end of the child vehicle to calculate the distance to the front vehicle or the front-front vehicle located at the front and side of the child vehicle, but the present invention is not limited thereto, Lidar) can be used.

The sensing unit 210 may receive information generated from various sensors formed inside / outside the vehicle such as a radar, a rider, an ultrasonic sensor, a steering angle sensor, and a camera sensor, or may receive navigation information, Information can be received from a device outside the vehicle, such as a module.

In this case, the sensing unit 210 may include a CAN (Controller Area Network) for data communication with each module. However, the present invention is not limited to the communication using CAN, do.

For example, the sensing unit 210 receives speed information, such as a rotation speed of the wheel of the vehicle, or a rotation speed of an output shaft of a transmission connected to the engine of the vehicle, from various speed sensors provided in the vehicle, So that the traveling speed of the vehicle can be calculated.

Then, the determination unit 220 calculates the traveling speed of the vehicle traveling in the adjacent lane on the basis of the information received from the sensing unit 210 for a certain period of time during which the subject vehicle travels, It can be judged whether it is congestion. That is, the judging unit 220 senses the vehicles located in the vicinity of the subject vehicle from the radar and the camera provided in the subject vehicle, judges the traveling speed and the traveling direction of the vehicles, It is possible to judge whether congestion or traffic is smooth.

Accordingly, the determination unit 220 may determine whether the vehicles are the first vehicle or the second vehicle based on the information received from the sensing unit 210, if the adjacent lane is determined to be a traffic congestion.

The first vehicle or the second vehicle is a vehicle selected according to the reference information pre-stored in the determination unit 220 among the vehicles sensed by the camera and the radar of the sensing unit 210, Or the second vehicle is an object recognized as a vehicle that is at a distance closest to the front or side of the driving lane on which the child vehicle travels, and satisfies the reference information.

For example, the determination unit 220 may select the detected vehicle as the first vehicle if the wheel angle of the front wheel among the sensed vehicles traveling in the adjacent lane is greater than or equal to the critical angle pre-stored in the determination unit 220 . In addition, the determination unit 220 may select a vehicle located in front of the preceding vehicle adjacent to the front of the child vehicle, that is, the forward vehicle, as the second vehicle.

Therefore, the determination unit 220 may include a memory for storing the reference information and the information received from the sensing unit 210. By calling the program, command signal or information stored in the memory, It is possible to perform control to prevent collision.

 The determination unit 220 receives the information from the sensing unit 210 and various driving support systems provided in the vehicle and processes the information through the operation unit 230 so that the warning unit 240 and / And controls the output unit 250.

Accordingly, the determination unit 220 may include a CAN (Controller Area Network) for data communication with each module, but is not limited to communication using CAN, and all of the communication methods used in the vehicle network are included in the scope of the present invention. do

The calculation unit 230 calculates the distance between the child vehicle and the first vehicle or the distance between the child vehicle and the second vehicle based on the lateral velocity of the first vehicle or the second vehicle, Can be calculated.

For example, the operation unit 230 receives information sensed by a wheel speed sensor installed on the four wheels of the vehicle, detects the traveling speed and traveling direction of the vehicle, Calculates a relative speed and a relative distance between the subject vehicle and the first vehicle or between the subject vehicle and the second vehicle through information sensed by the radar of the subject vehicle and calculates a collision risk based on the calculated relative distance, Can be calculated.

That is, the calculation unit 230 calculates the collision risk when it is determined that the subject vehicle can collide forward, and transmits the calculated collision risk to the warning unit 240 and the output unit 150, It is possible to control the driving of the sub-vehicle through at least one of the steering device, the suspension device, the braking device, and the warning device of the sub-vehicle.

At this time, the collision risk may be a plurality of risk levels, and the collision risk level may be composed of two levels. For example, if the calculated collision risk is the first step, the steering wheel of the vehicle is vibrated and a warning sound is output so that the driver of the subject vehicle recognizes the risk of collision. In addition, if the calculated collision risk is the second step, the braking device of the vehicle is controlled to stop the collision.

Here, the first step may be a case where the collision risk is equal to or greater than the first threshold value and less than the second threshold value, and the second step may be when the collision risk is equal to or greater than the second threshold value. Wherein the second threshold value is a value having a collision risk higher than the first threshold value. That is, the high risk of collision means that the collision prediction time between the subject vehicle and the preceding vehicle or the preceding vehicle is short and the possibility of collision is high.

The alarm unit 240 may output the emergency braking alarm according to the collision risk calculated by the operation unit 230. That is, the warning unit 240 can output the emergency braking alarm for the first vehicle when the collision risk calculated by the operation unit 230 is equal to or greater than the first threshold value, The emergency braking alarm for the second vehicle can be outputted.

At this time, the warning unit 240 is a device that warns the driver who drives the subject vehicle, and can warn various visually, audibly, and tactually according to the risk of collision. The visual warning device may include an instrument panel of a driver's seat, a head-up display (HUD), a navigation device, an integrated information display device, etc., and may include a speaker with an audible warning device. Quot; secure ", " brake ", and the like. The warning unit 240 may include a vibration device that vibrates the steering wheel of the vehicle with a tactile warning device, and may warn the driver by tightening the seatbelt.

The output unit 250 may output the control signal for controlling the braking device of the chacharanger according to the collision risk calculated by the calculation unit 230. At this time, the control signal may be a signal for reducing the power of the subject vehicle or generating a braking force to decelerate or stop the vehicle.

That is, the control signal is a signal for reducing the speed of the subject vehicle by operating a brake that applies a frictional force to the disk of the front wheel or the rear wheel of the subject vehicle, and the control signal is a signal for reducing the rotation of the vehicle engine, retarder) can be operated.

The control signal may be transmitted to the electronic control braking device to automatically control the braking of the vehicle. The electronic control braking device includes an electronic stability control (ESC) system, an anti-lock brake system (ABS), an automatic stability control (ASC) system, a dynamic stability control (DSC) Dynamic Stability Control) system or the like may be employed.

INDUSTRIAL APPLICABILITY As described above, the present invention can prevent a collision due to a lane-changing front vehicle by judging a driving situation using a radar and a camera.

3 is a flowchart for explaining a method for preventing collision with a first vehicle according to an embodiment of the present invention.

A collision avoidance method according to the present invention includes sensing a driving environment information of a vehicle, detecting a driving information of a vehicle and an obstacle located at a front or a side of the vehicle, detecting the driving information of the vehicle, Determining a road condition of a driving lane adjacent to the driving lane and an adjacent lane adjacent to the driving lane and selecting a first vehicle or a second vehicle by predicting a traveling direction of the vehicle detected; An arithmetic step of calculating a collision risk by calculating a lateral speed of the first vehicle or a lateral speed of the second vehicle and an alarm step of outputting an emergency braking alarm if the collision risk is equal to or greater than a first threshold value.

Referring to FIG. 3, an obstacle such as a traveling environment of the subject vehicle and a vehicle around the subject vehicle is sensed (S300).

At this time, it is determined whether the adjacent lane adjacent to the lane adjacent to the lane on which the lane vehicle travels is traffic congestion (S310). At this time, if the adjacent lane is in a traffic congested state, the lateral acceleration, the traveling direction, and the front wheel angle of the vehicle, which are located in front of the child vehicle or travel in the adjacent lane, are detected through the camera, which is the sensing unit 210, (S320).

And the controller determines that the vehicle has a traveling direction in which the vehicle is going to enter the driving lane on which the child vehicle is traveling based on the information of the vehicle detected by the determining unit 220. If the wheel angle to the front wheel of the vehicle is equal to or greater than the critical angle (S330).

At this time, if the wheel angle with respect to the front wheel of the vehicle is less than the critical angle, the lateral speed, the traveling direction, and the front wheel angle of the vehicle, which are located in front of the sub- (S320).

On the other hand, if the wheel angle to the front wheel of the vehicle is greater than or equal to the critical angle, the vehicle is selected as the first vehicle (S340).

Then, the calculation unit 230 calculates the distance and the relative speed between the subject vehicle and the first vehicle using the traveling speed of the subject vehicle and the traveling speed (lateral speed) of the first vehicle, calculates the collision prediction time, The risk level is calculated (S350).

In operation S360, the warning unit 240 outputs an emergency braking alarm if the collision risk is equal to or greater than a first threshold value in operation S360.

After outputting the emergency braking alarm, it is determined whether the collision risk is equal to or greater than a second threshold (S380). The second threshold value is a value having a collision risk higher than the first threshold value. That is, the high risk of collision means that the collision prediction time between the subject vehicle and the preceding vehicle or the preceding vehicle is short and the possibility of collision is high.

Therefore, if the collision risk is equal to or greater than the second threshold value, the output unit 250 outputs a control signal for braking the child vehicle (S390), thereby automatically braking the child vehicle, thereby preventing collision with the first vehicle .

If the collision risk is less than the second threshold value, the continuous emergency braking alarm is output (S370). If the collision risk is less than the first threshold value, the collision risk of the child vehicle and the first vehicle is calculated (Step S350).

4 is a view showing an example of a self-vehicle running in a method of preventing collision with a first vehicle according to an embodiment of the present invention.

4, when the subject vehicle 11 travels the traveling lane 110 and the adjacent lane 120 is in a traffic congestion state, the vehicle lane 11 travels from the adjacent lane 120 through the sensing unit 210, It is possible to prevent a forward collision with the first vehicle 12 by sensing the first vehicle 12 attempting lane change to the first vehicle 12. [

The determination unit 220 determines the driving speed of the vehicle traveling in the adjacent lane 120 for a certain period of time during which the vehicle 11 travels on the lane 110 based on the information received from the sensing unit 210. [ To determine whether the adjacent lane 120 is in a traffic congestion state.

The sensing unit 210 can sense the traveling direction of the vehicle and the wheel angle of the front wheels while the vehicle is traveling on the adjacent lane 120 through the camera.

Then, the determination unit 220 can select the vehicle having the wheel angle of the front wheel among the vehicles running on the adjacent lane 120 as the first vehicle 12, which is equal to or higher than the critical angle pre-stored in the determination unit 220.

The calculation unit 230 may calculate the relative risk of collision by calculating the relative distance and relative speed between the first vehicle 12 and the first vehicle 12 based on the detected lateral velocity of the first vehicle 12. [

The warning unit 240 outputs an emergency braking alarm in response to the collision risk calculated by the calculation unit 230 or a control signal for controlling the braking device of the vehicle 11 by the output unit 250, It is possible to prevent a forward collision with the vehicle 12. [

5 is a flowchart illustrating a method for preventing collision with a second vehicle according to an embodiment of the present invention.

Referring to FIG. 5, a driving environment of the subject vehicle and a vehicle as an obstacle around the subject vehicle are sensed (S500).

Then, the determination unit 220 determines whether the adjacent lane adjacent to the lane on which the subject vehicle is traveling is traffic congestion (S510). At this time, if the adjacent lane is in a traffic congestion state, vehicles located in front of the subject vehicle are detected in the traveling lane on which the subject vehicle is traveling through the radar, which is the sensing unit 210, in step S520. For example, the radar may sense a front vehicle adjacent to the front of the child vehicle and all front vehicles positioned in front of the front vehicle.

At this time, the determination unit 220 determines whether the preceding vehicle located in front of the preceding vehicle exists (S530).

If there is no preceding vehicle located in front of the preceding vehicle, the vehicle driving vehicle continues to sense the vehicles located in front of the vehicle through the radar (S520).

On the other hand, if the front-front vehicle located in front of the front vehicle exists, the front-front vehicle is selected as the second vehicle (S540).

Then, it is determined whether the preceding vehicle has moved to the adjacent lane adjacent to the child vehicle (S550).

At this time, if the front vehicle moves to the adjacent lane, the warning unit 240 outputs an emergency braking alarm (S560).

After outputting the emergency braking alarm, the calculating unit 230 calculates the distance and the relative speed between the child vehicle and the second vehicle using the traveling speed of the child vehicle and the traveling speed of the second vehicle, The collision risk is calculated by calculating the predicted time (S570).

At this time, if the collision risk is less than the second threshold value, the collision risk of the child vehicle and the second vehicle is calculated (S570).

If the collision risk is equal to or greater than the second threshold value, the output unit 250 outputs a control signal for braking the child vehicle (S590) , It is possible to prevent collision with the second vehicle because the vehicle is automatically braked.

FIG. 6 is a view showing another example of a self-vehicle running in a method of preventing collision with a second vehicle according to an embodiment of the present invention.

6, when the subject vehicle 11 is traveling on the driving lane 110 and the adjacent lanes 120 and 130 are in a traffic congestion state, It is possible to prevent a forward collision with the second vehicle 14 by sensing the front vehicle 13 attempting to change lanes to the adjacent lanes 120 and 130. [

Specifically, the determination unit 220 determines whether or not the vehicle traveling on the adjacent lanes 120 and 130 during a certain period of time during which the vehicle 11 travels on the driving lane 110 based on the information received from the sensing unit 210. [ It is possible to determine whether the adjacent lanes 120 and 130 are traffic congestion by calculating the traveling speed.

The front vehicle 13 and the front vehicle 13 located in front of the preceding vehicle 13 and the front vehicle 13 located in front of the vehicle are running on the traveling lane 110 through the radar of the sensing unit 210 ) Of the vehicle.

Then, the determination unit 220 can select the forward vehicle hidden in the driver ' s field of vision of the child vehicle 11 as the second vehicle 14. [ At this time, the determination unit 220 can output an emergency braking alarm to the warning unit 240 when the front vehicle 13 changes the lane from the driving lane 110 to the adjacent lane 130. [

The calculating unit 230 may calculate the relative risk of collision by calculating the relative distance and the relative speed between the vehicle 11 and the second vehicle 14 based on the detected lateral velocity of the second vehicle 14. [

The operation unit 230 outputs an emergency braking alarm to the warning unit 240 or outputs a control signal for controlling the braking device of the vehicle 11 to the output unit 250 according to the calculated collision risk, It is possible to prevent a frontal collision with the vehicle 14.

As described above, the anti-collision apparatus and method according to the present invention can provide the convenience of operation by controlling the alarm to prevent collision with the preceding vehicle that is interfering with, and can reduce the risk of collision So that the accident can be prevented.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

11: vehicle 12: first vehicle
13: front vehicle 14: second vehicle
110: Driving lane 120: First adjacent lane
130: second adjacent lane
200: Anti-collision device
210: sensing unit 220:
230: operation unit 240: warning unit
250: Output section

Claims (14)

A sensing unit that senses driving environment information of the vehicle and senses driving information of a vehicle and an obstacle located at a front side or a side of the vehicle;
The controller determines the road condition of the driving lane on which the subject vehicle travels and the adjacent lane adjacent to the driving lane on the basis of the sensed information and selects the first vehicle or the second vehicle by predicting the traveling direction of the vehicle A determination unit;
An operation unit for calculating a running speed of the subject vehicle, a lateral speed of the first vehicle or a lateral speed of the second vehicle to calculate a collision risk; And
An alarm unit for outputting an emergency braking alarm if the collision risk is equal to or greater than a first threshold; Lt; / RTI >
The method according to claim 1,
And an output unit for outputting a control signal for controlling the braking of the sub-vehicle if the collision risk is equal to or greater than a second threshold value.
The method according to claim 1,
The sensing unit includes:
A rider, a radar, and a camera device, and detects the running speed of the vehicle, the running direction, and the front wheel angle of the vehicle.
The method of claim 3,
Wherein,
And selects the first vehicle as the first vehicle when the wheel angle of the vehicle traveling in the adjacent lane is greater than or equal to the critical angle.
The method according to claim 1,
Wherein,
And calculates a plurality of vehicle traveling speeds traveling in the adjacent lane during a certain period of time during which the host vehicle travels in the lane of travel so as to determine whether the adjacent lane is in a traffic congestion state.
6. The method of claim 5,
Wherein,
And selects the first vehicle or the second vehicle when it is determined that the adjacent lane is a traffic congestion.
The method according to claim 1,
Wherein,
And selects the vehicle that is traveling in the traveling lane and is located in front of the front vehicle adjacent to the front of the child vehicle as the second vehicle.
8. The method of claim 7,
The warning unit,
And outputs the emergency braking alarm to the second vehicle when the front vehicle moves to the adjacent lane.
The method according to claim 1,
The operation unit,
Calculating the distance between the child vehicle and the first vehicle or the distance between the child vehicle and the second vehicle based on the lateral velocity of the first vehicle or the lateral velocity of the second vehicle to calculate the collision risk Crash prevention device.
A sensing step of sensing driving environment information of the subject vehicle and sensing driving information of a vehicle and an obstacle located at a front or a side of the subject vehicle;
The controller determines the road condition of the driving lane on which the subject vehicle travels and the adjacent lane adjacent to the driving lane on the basis of the sensed information and selects the first vehicle or the second vehicle by predicting the traveling direction of the vehicle Determining;
An arithmetic step of calculating a collision risk by calculating a traveling speed of the subject vehicle and a lateral speed of the first vehicle or a lateral speed of the second vehicle; And
A warning step of outputting an emergency braking alarm if the collision risk is equal to or greater than a first threshold value; / RTI >
11. The method of claim 10,
In the sensing step,
And detecting at least one of a running speed of the vehicle, a running direction, and a wheel angle of the front wheel.
11. The method of claim 10,
Wherein,
And calculating a plurality of vehicle traveling speeds traveling in the adjacent lane during a certain period of time during which the subject vehicle travels in the traveling lane, to determine whether the adjacent lane is a traffic congestion state.
13. The method of claim 12,
Wherein,
And selecting the first vehicle or the second vehicle when it is determined that the adjacent lane is a traffic congestion.
11. The method of claim 10,
Wherein,
Calculating a distance between the child vehicle and the first vehicle or a distance between the child vehicle and the second vehicle based on the lateral velocity of the first vehicle or the lateral velocity of the second vehicle, How to prevent.

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