KR102426170B1 - Vehicle control system, control method therefor and server - Google Patents

Abstract

The present invention provides a vehicle control system, a control method, and a server for automatically providing a braking timing according to a braking pattern in various braking environments by extracting a pattern of an environmental factor having a high accident rate.
A server according to an embodiment includes a storage unit configured to store at least one driving environment data including a plurality of elements; a communication unit configured to receive driving information based on the driving environment data from the vehicle; and a control unit that derives pattern information based on at least one of the driving environment data and the driving information, and compares the pattern information with the at least one driving environment data to derive a braking signal of the vehicle.

Description

Vehicle control system, control method and server

The present technology is a technology related to an emergency braking system.

The emergency braking system calculates the expected collision time by using the preceding vehicle and pedestrian target information acquired from the front radar and camera, then divides the risk stages into warning sounds, partial braking, engine torque reduction, full braking, etc. carry out The risk level can be further subdivided according to the characteristics of the system. The braking time is classified by a fixed value (look-up table) stored in the system in advance according to the expected collision time and the relative speed with the target.

The braking time is determined by a fixed value (look-up table) stored in the system in advance according to the expected collision time and the relative speed with the target, but the braking distance may vary depending on various environmental factors. Since environmental factors affecting braking cannot be considered to act independently and accidents can occur due to various combinations of factors affecting braking distance, there is a limit to controlling the braking timing through only specific environmental factors.

The present invention provides a vehicle control system, a control method, and a server for automatically providing a braking time according to a braking pattern in various braking environments by extracting a pattern of an environmental factor having a high accident rate.

A server according to an embodiment includes a storage unit configured to store at least one driving environment data including a plurality of elements; a communication unit configured to receive driving information based on the driving environment data from the vehicle; and a control unit that derives pattern information based on at least one of the driving environment data and the driving information, and compares the pattern information with the at least one driving environment data to derive a braking signal of the vehicle.

The control unit derives a first similarity between the pattern information and the at least one driving environment data, and when the similarity exceeds a predetermined first reference similarity, the driving environment data corresponding to the first similarity Based on the braking signal of the vehicle may be derived.

When the number of the at least one driving environment data exceeding the predetermined first reference degree of similarity exceeds the predetermined reference number, the controller is configured to:

A braking signal of the vehicle may be derived by deriving an accident rate based on the driving environment data exceeding the first reference degree of similarity.

When the accident rate exceeds a predetermined reference accident rate, the controller may derive a braking signal of the vehicle based on the pattern information.

The control unit may transmit a braking signal of the vehicle to the vehicle through the communication unit.

The braking signal is

The pattern information, collision warning output timing information, braking timing information, and braking intensity information may be included.

A vehicle control system according to an embodiment stores at least one driving environment data including a plurality of elements, receives driving information based on the driving environment data from a vehicle, and includes: among the driving environment data and the driving information a server deriving pattern information based on at least one, and deriving a braking signal of the vehicle by comparing the pattern information with the at least one driving environment data;

and receiving the braking signal, comparing the braking signal with the driving information, and deriving a second similarity between the braking signal and the driving information;

When the second degree of similarity exceeds a predetermined second reference degree of similarity,

and a vehicle controlling the vehicle based on the braking signal.

The server derives a degree of similarity between the pattern information and the at least one driving environment data, respectively, and when the similarity exceeds a predetermined reference degree of similarity, the server brakes the vehicle based on the driving environment data corresponding to the similarity signal can be derived.

When the number of the at least one driving environment data exceeding the predetermined reference degree of similarity exceeds the predetermined reference number, the server is configured to:

A braking signal of the vehicle may be derived by deriving an accident rate based on the driving environment data exceeding the reference similarity.

When the accident rate exceeds a predetermined reference accident rate, the server may derive a braking signal of the vehicle based on the pattern information.

A vehicle control system control method according to an embodiment stores at least one driving environment data including a plurality of elements, receives driving information based on the driving environment data from a vehicle, and includes the driving environment data and the driving and deriving pattern information based on at least one of the information, and deriving a braking signal of the vehicle by comparing the pattern information with the at least one driving environment data.

The deriving of the vehicle braking signal may include deriving a first similarity between the pattern information and the at least one driving environment data, respectively, and if the similarity exceeds a predetermined first reference similarity, it corresponds to the first similarity It may include deriving a braking signal of the vehicle based on the driving environment data.

The deriving the braking signal of the vehicle may include: when the number of the at least one driving environment data exceeding the predetermined first reference degree of similarity exceeds the predetermined reference number,

A braking signal of the vehicle may be derived by deriving an accident rate based on the driving environment data exceeding the first reference degree of similarity.

In deriving the vehicle's braking signal, when the accident rate exceeds a predetermined reference accident rate, the vehicle's braking signal may be derived based on the pattern information.

The braking signal may include pre-pattern information, collision warning output timing information, braking timing information, and braking intensity information.

The vehicle control system, the control method, and the server according to an embodiment may extract a pattern of an environmental factor having a high accident rate and automatically provide a braking time according to a braking pattern in various braking environments.

1 is a view illustrating an exterior of a vehicle according to an exemplary embodiment.
2 is a view illustrating the interior of a vehicle according to an exemplary embodiment.
3 is a diagram schematically illustrating a brake of a vehicle according to an exemplary embodiment.
4 is a control block diagram of a server according to an embodiment.
5 is a control block diagram of a vehicle control system according to an exemplary embodiment.
6 and 7 are views illustrating a driving situation of a vehicle.
8 and 9 are diagrams for explaining deriving pattern information according to an embodiment.
10 and 11 are flowcharts according to an embodiment.

Like reference numerals refer to like elements throughout. This specification does not describe all elements of the embodiments, and general content in the technical field to which the present invention pertains or content that overlaps between the embodiments is omitted. The term 'part, module, member, block' used in the specification may be implemented in software or hardware, and according to embodiments, a plurality of 'part, module, member, block' may be implemented as a single component, It is also possible for one 'part, module, member, block' to include a plurality of components.

Throughout the specification, when a part is "connected" with another part, this includes not only direct connection but also indirect connection, and indirect connection includes connection through a wireless communication network. do.

Also, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

Throughout the specification, when a member is said to be located "on" another member, this includes not only a case in which a member is in contact with another member but also a case in which another member exists between the two members.

Terms such as first, second, etc. are used to distinguish one component from another, and the component is not limited by the above-mentioned terms.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In each step, the identification code is used for convenience of description, and the identification code does not describe the order of each step, and each step may be performed differently from the specified order unless the specific order is clearly stated in the context. have.

Hereinafter, the working principle and embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view illustrating an exterior of a vehicle according to an exemplary embodiment.

Referring to FIG. 1 , a vehicle 1 may include a vehicle body 10 forming an exterior and wheels 12 and 13 for moving the vehicle 1 .

The vehicle body 10 includes a hood 11a for protecting various devices necessary for driving the vehicle 1 such as an engine, a roof panel 11b for forming an interior space, a trunk lid 11c with a storage space, and the vehicle 1 . ) may include a front fender (11d) and a quarter panel (11e) provided on the side. In addition, a plurality of doors 15 coupled to the vehicle body may be provided on the side surface of the vehicle body 11 .

A front window 19a providing a view of the front of the vehicle 1 is provided between the hood 11a and the roof panel 11b, and a rear view is provided between the roof panel 11b and the trunk lid 11c. A rear window 19b may be provided. In addition, a side window 19c providing a side view may be provided above the door 15 .

In addition, a headlamp 15 for irradiating illumination in the traveling direction of the vehicle 1 may be provided in front of the vehicle 1 .

In addition, a turn signal lamp (16) for indicating a traveling direction of the vehicle 1 may be provided at the front and rear of the vehicle 1 .

The vehicle 1 may display the direction in which the direction indicator lamp 16 flickers. In addition, a tail lamp 17 may be provided at the rear of the vehicle 1 . The tail lamp 17 may be provided at the rear of the vehicle 1 to display a gear shift state, a brake operation state, and the like of the vehicle 1 .

At least one vehicle control unit 102 may be provided inside the vehicle 1 . The vehicle control unit 102 may perform a function of performing electronic control related to the operation of the vehicle 1 . The vehicle control unit 102 may be installed at an arbitrary position inside the vehicle 1 according to a designer's selection. For example, the vehicle control unit 102 may be installed between the engine room and the dashboard, or may be provided inside the center fascia. The vehicle controller 102 may include at least one processor capable of receiving an electrical signal, processing the received electrical signal, and then outputting the received electrical signal. At least one processor may be implemented with at least one semiconductor chip and related components. At least one semiconductor chip and related components are installed on a printed circuit board that can be installed inside the vehicle 1 . In addition, an image camera 130 may be provided in the vehicle 1 to acquire an image required for autonomous driving of the vehicle.

2 is a view illustrating the interior of a vehicle according to an exemplary embodiment.

Referring to FIG. 2 , inside the vehicle 1 , the dashboard 400 , the center fascia 410 extending from the dashboard 400 , the gear box 420 and the gear installed at the bottom of the center fascia 410 . A console box 430 installed at the rear end of the box 420 may be provided.

The dashboard 400 provides a function of dividing the engine room 5 and the internal space of the vehicle 1 , and a steering wheel 161 , an instrument panel 122 , an exhaust port 401 , and the like may be installed.

The steering wheel 161 may be installed near the driver's seat 163 on the dashboard 400 . The steering wheel 161 may include a rim and spokes that connect a hub of a steering device of a vehicle positioned on a rotation shaft for steering with a rim and rim gripped by the driver. The driver may control the traveling direction of the vehicle 1 by manipulating the rim to rotate the spokes to change the traveling direction of the wheels. In addition, various input units for controlling the radio device, the vehicle communication device, the instrument panel 122, and the like may be provided at the spokes. An input unit such as a scroll wheel, a button, a knob, a touch screen, a touch pad, a lever, a track ball, a motion sensor, or a voice recognition sensor may be installed in the spoke.

The instrument panel 122 may display the driving speed of the vehicle 1 , the engine rotation speed or the remaining fuel amount, the driving distance, and the like. The instrument panel 122 may be generally installed on the rear dashboard 400 of the steering wheel 100 . Depending on the embodiment, the instrument panel 122 may be installed in various positions such as another position of the dashboard 400 or the center fascia 410 . The exhaust port 410 may control the temperature inside the vehicle body by discharging air at a predetermined temperature into the vehicle 1 according to the operation of the air conditioner. The exhaust port 401 may be installed in various positions of the dashboard 400 . For example, the exhaust port 401 may be installed on both sides of the display 121 as shown in FIG. 2 .

The display 121 may be installed on an upper frame of the dashboard 300 . The display 121 may output various images such as moving images or still images and provide them to the user. The display 121 may display information necessary for driving, etc. as an image. For example, the display 121 may display a map around the vehicle or a movement path of the vehicle 1 . The display 121 may be, for example, a navigation device. The display 121 may include a display panel and an external housing for fixing the display panel. A fixing means (not shown) for fixing to a predetermined position in the vehicle interior 1 , for example, the dashboard 400 may be installed on the side surface or the rear surface of the exterior housing. When the display 121 is provided at the top of the dashboard 400 , the display 121 can be installed at various locations inside the vehicle 1 , so that other passengers in addition to the driver can check the contents of the screen.

The center fascia 410 may be positioned between the dashboard 400 and the gear box 420 . The center fascia 410 includes at least one of a scroll wheel, a button, a knob, a touch screen, a touch pad, a lever, and a track ball through which a user such as a driver or a passenger can input various commands for operating various functions of the vehicle 1 . may contain one. A gear box 420 in which a gear device is incorporated may be provided at a lower end of the center fascia 410 . A gear rod 421 for changing a gear may protrude from the gear box 420 . The gear box 420 may be provided with an input unit through which the driver may input various commands for operating various functions of the vehicle 1 .

A console box 430 may be provided at the rear end of the gear box 420 . The console box 430 may be provided with a predetermined space to store various things.

Also, a speaker 123 capable of outputting a sound may be provided inside the vehicle 1 . Accordingly, the vehicle 1 may output sound necessary for performing an audio function, a video function, a navigation function, and other additional functions through the speaker 123 .

In addition to the speaker 123 for outputting sound to the inside, the vehicle 1 is provided with at least one speaker for outputting sound to the outside, and various sounds for recognizing the vehicle 1 to pedestrians and drivers of other vehicles are output can be

3 is a diagram schematically illustrating a brake of a vehicle according to an exemplary embodiment.

Referring to FIG. 3 , the vehicle may include a brake system. The brake system includes a control unit 102, a hydraulic control unit (HCU), which is a hydraulic control unit, a sensor unit 110 for detecting the speed of a wheel, a pedal travel switch (PTS) for detecting a state in which the brake is pressed, a disc brake, 111) and a caliper 112.

The disc brake 111 obtains braking force by compressing the pads on both sides of the disc rotating together with the wheel and then generating friction. In the case of sealed drum brakes, the disadvantage of not working due to the expansion of the drum due to frictional heat when used repeatedly can be compensated for.

The main parts of the brake system may include a disk rotating together with the wheel hub, a pad that is in close contact with the disk to generate frictional force, a wheel cylinder to which hydraulic pressure is applied, and a caliper 112 containing the wheel cylinder.

The caliper 112 is a device that holds the front wheel brake by attaching the pad of the vehicle to the disc brake 111 , and is operated by hydraulic pressure. It can be in the form of wrapping the front wheel brake disc. When the brake is operating, when the master cylinder receives hydraulic pressure, the brake oil in the cylinder generates hydraulic pressure, and the force acts from side to side in the cylinder. At this time, the force acting to the left causes the piston to slide and presses the inner pad against the disk, and the force acting to the right causes the housing to slide to the right. This compresses the outer pad against the disc and creates friction with the inner pad.

Next, when the brake is released, the piston returns to its original position according to the restoring force of the seal piston, and the inner pad maintains a gap with the disk by the rotation of the disk. At the same time, the outer pad maintains a gap with the disk while the compression force is released by the sliding action of the housing, thereby eliminating residual torque.

A car equipped with ABS has a sensor 110 in the wheel for each wheel, and by analyzing the information sensed here, if one wheel is locked, only that wheel is pumped to maintain the balance of the four wheels. Therefore, there is no skid phenomenon in which the car slides, so control is lost, and the braking distance is much shorter because the wheels are not locked.

The sensor 110 in the wheel is installed on the front and rear four wheels, respectively, and serves to detect the rotational speed of the wheel as a change in the magnetic field lines in the tone wheel and the sensor and input it to the computer. The controller 102 may derive the driving distance for each driving situation to be described later based on the wheel speed obtained from the wheel sensor. In particular, as will be described later, the control unit 102 of the vehicle may derive the driving state of the vehicle based on the driving distance per unit time measured by the wheel in-wheel sensor 110 . In addition, the wheel in-wheel sensor 110 measures the rotational speed of the wheel, and the controller 102 may determine whether the road is in a slippery slip state by deriving a difference between the rotational speeds of the four wheels.

Also, as will be described later, the controller 102 may receive a braking signal from the server 100 to control the brake system to control the vehicle's braking.

4 is a control block diagram of the server 100 according to an embodiment, and FIG. 5 is a control block diagram of a vehicle control system according to an embodiment.

Referring to FIG. 4 , the server 100 may include a storage unit 101 , a communication unit 103 , and a control unit 102 .

The communication unit 103 may receive driving information, which is based on the driving environment data, from the vehicle. The driving environment data may include a distance, a relative speed, and a relative acceleration of the driving vehicle to a preceding vehicle. The driving environment data may include a vehicle speed, a brake, and a steering angle. The communication unit 103 may include one or more components that enable communication with an external device, and may include, for example, at least one of a short-range communication module, a wired communication module, and a wireless communication module. In addition to the Wi-Fi module and the wireless broadband module, the wireless communication module includes a global system for mobile communication (GSM), a code division multiple access (CDMA), a wideband code division multiple access (WCDMA), and a universal mobile telecommunications system (UMTS). ), Time Division Multiple Access (TDMA), Long Term Evolution (LTE), etc. may include a wireless communication module supporting various wireless communication methods. The wireless communication module may include a wireless communication interface including an antenna for receiving driving environment data and a receiver (Receiver). In addition, the wireless communication module may further include a conversion module for demodulating an analog wireless signal received through the wireless communication interface into a digital control signal.

The storage unit 101 may store at least one driving environment data including a plurality of elements.

The driving environment data may include a plurality of factors such as vehicle speed during braking, rain conditions, illuminance, deceleration, slip rate, and road grade.

The storage unit 101 includes a cache, a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), and a flash memory. It may be implemented as at least one of a non-volatile memory device or a volatile memory device such as a random access memory (RAM), a hard disk drive (HDD), or a storage medium such as a CD-ROM, but is not limited thereto. The storage unit 101 may be a memory implemented as a chip separate from the processor described above with respect to the controller 102 , or may be implemented as a single chip with the processor.

The controller 102 may derive a braking signal of the vehicle by comparing the pattern information and the at least one driving environment data. The control unit 102 derives a first similarity between the pattern information and the at least one driving environment data, and when the similarity exceeds a predetermined first reference similarity, the driving environment data corresponding to the first similarity A braking signal of the vehicle may be derived based on .

The pattern information is information randomly extracted from among various elements of the driving environment data. The driving environment data may be formed of big data having the above-described elements, and the pattern information may be randomly formed based on the driving environment data.

The first similarity refers to a degree of similarity by comparing pattern information and driving environment data.

In addition, the vehicle's braking signal is a signal required when the vehicle automatically brakes, and may be derived based on pattern information and driving environment data, which will be described in detail later.

When the number of the at least one driving environment data exceeding the first predetermined degree of similarity exceeds the predetermined reference number, the control unit 102 is configured to control an accident based on the driving environment data exceeding the first reference degree of similarity. A braking signal of the vehicle may be derived by deriving the occurrence rate. When the accident rate exceeds a predetermined reference accident rate, a braking signal of the vehicle may be derived based on the pattern information.

The accident rate means the ratio of accidental data among all data.

Also, the control unit 102 may transmit a braking signal of the vehicle to the vehicle through the communication unit 103 .

The controller 102 performs the above-described operation using a memory (not shown) that stores data for an algorithm or a program that reproduces an algorithm for controlling the operation of components in the server 100, and data stored in the memory It may be implemented by a processor (not shown). In this case, the memory and the processor may be implemented as separate chips. Alternatively, the memory and the processor may be implemented as a single chip.

Referring to FIG. 5 , a vehicle control system according to an exemplary embodiment may include a server 100 and a vehicle.

A detailed description of the server 100 will be omitted as described above.

When the vehicle receives the braking signal, compares the braking signal with the driving information, and derives a second similarity between the braking signal and the driving information, and the second similarity exceeds a predetermined second reference similarity, The vehicle may be controlled based on the braking signal.

As described above, the braking signal may include various elements, and driving information obtained by the vehicle may also correspond to the braking signal. The braking signal of the vehicle may include pattern information, and the second similarity refers to a value derived by comparing the pattern information with the driving information of the vehicle.

At least one component may be added or deleted according to the performance of the components of the server 100 and the vehicle control system shown in FIGS. 4 and 5 . In addition, it will be readily understood by those of ordinary skill in the art that the mutual positions of the components may be changed corresponding to the performance or structure of the system.

Meanwhile, each component shown in FIGS. 4 and 5 means a hardware component such as software and/or a Field Programmable Gate Array (FPGA) and an Application Specific Integrated Circuit (ASIC).

6 and 7 are views illustrating a driving situation of a vehicle.

Referring to FIG. 6 , FIG. 6 illustrates that the vehicle travels on a highway. In the present invention, it is shown that the vehicle travels on a highway, but the road on which the vehicle travels may be a local road, a local road, a national road, and an urban highway. Since the speed at which the vehicle generally travels is different depending on the road on which the vehicle runs, information that is based on braking the vehicle may be set differently. For example, the braking force of a vehicle traveling on a highway may be stronger than that of a vehicle traveling on a general local road.

In addition, the driving situation may include the distance of the vehicle. In the case of a vehicle driving while maintaining a long distance between vehicles, since the braking distance is long, braking force may be weaker than that of a vehicle driving while maintaining a short distance between vehicles. As such, since the output for controlling the braking of the vehicle is different according to the driving information of the vehicle, the braking signal corresponding to each driving environment data formed based on the driving information on which the vehicle is driving may include other output signals and information related to the braking force. .

Referring to FIG. 7 , it is shown that the vehicle travels in rain. In the case of a vehicle traveling in rain, there is a need for a large braking force of the vehicle because the braking distance may be long due to low friction on the road surface. On the other hand, in the case of a clear situation without rain, the friction force of the road surface is greater than that of the rainy situation, so the need for a relatively large braking force is small. Accordingly, information related to weather may be included in the driving information of the vehicle, and braking of the vehicle may be controlled based on this information. That is, the vehicle may determine whether it is raining, and if it is determined that it is raining, apply a strong braking force to brake the vehicle.

The driving situation shown in FIGS. 6 and 7 is only at least one element for controlling the braking of the vehicle, and information on the driving situation of the vehicle is not limited.

8 and 9 are diagrams for explaining deriving pattern information according to an embodiment.

Referring to FIG. 8 , as for the driving environment data stored in the server 100 , information that the vehicle has driven in the past from the time of derivation is posted. The driving environment data stores driving histories of N cases. For example, Case 1 shows the case where the vehicle speed is 50 km when braking, it is raining a little, the illumination is 20%, the distance between vehicles when braking is 0.7, the vehicle was driven on the highway at a slip rate of 15%, and no accident occurred. It was. The control unit 102 of the server 100 may derive pattern information from the driving environment data stored in the storage unit 101 . The pattern information is information randomly formed from driving environment data. The pattern information shown in Fig. 8 is formed by combining the driving environment data Case1's vehicle speed during braking, Case3's rain state information, Case2's illuminance information, CaseN's deceleration/deceleration, Case3's slip rate, and Case2's road grade information. . Since the driving environment data forms big data, the controller 102 may randomly form pattern information based on the driving environment data stored in the storage unit 101 . A plurality of elements included in the pattern information may be added or deleted. Meanwhile, such pattern information may be formed from driving environment data stored in the storage unit 101 of the server 100 , but may also be formed based on driving information of the vehicle.

On the other hand, deriving the pattern information from the driving environment data is randomly derived, and the pattern information shown in FIG. 8 is only an example for explaining the operation of the present invention.

Referring to FIG. 9 , FIG. 9 is a diagram illustrating deriving a first degree of similarity between pattern information and driving environment data. When the first similarity exceeds a predetermined first reference similarity, the controller 102 may determine that the information of the driving environment data matches the information of the driving environment data, and control the vehicle as if braking of the vehicle was controlled in the existing driving environment data.

In the first similarity, the closer to 1, the more positive the correlation, and the closer to -1, the closer the negative correlation. If it is close to 0, it can be judged that there is no significant relationship. That is, as the first similarity is closer to 1, it can be determined that a similar pattern is exhibited. Meanwhile, as the first reference degree of similarity increases, it can be determined that more accurate information is extracted by extracting pattern information having a high similarity.

Meanwhile, the controller 102 may determine that the pattern information is reliable when the number of times the first similarity exceeds the reference similarity exceeds a predetermined reference number. In addition, when it is determined that the information is reliable by exceeding the reference number, the control unit 102 may derive an accident rate. The accident rate may be derived based on Equation 1 below.

Referring to Equation 1, R denotes an accident rate, C denotes a case in which an accident occurs among cases in which pattern information and driving environment data correspond, and CT denotes the total number of cases.

On the other hand, when the derived accident rate exceeds a predetermined reference accident rate, it may be determined that the vehicle has a high probability of occurrence of an accident. Accordingly, the control unit 102 may compare the accident rate of the pattern information with the accident rate of the entire driving environment data, and the compared value may be derived by Equation (2).

Referring to Equation 2, T denotes an accident rate of pattern information and RT denotes an accident rate of driving environment data. For example, when T is 10, the accident rate of pattern information is 10 times higher than that of the entire driving environment data. can

Meanwhile, the braking signal may include pattern information. The vehicle may derive the second similarity by receiving the braking signal from the server 100 and comparing pattern information included in the braking signal with the braking signal obtained by the vehicle.

If the second similarity derived by the vehicle exceeds the predetermined second reference similarity, it is determined that the vehicle is a driving situation in the case of pattern information, and the vehicle can be controlled based on the braking signal received from the server 100 . The braking signal may include controlling a braking force of the vehicle and controlling a braking timing of the vehicle.

In addition, the above description is only an embodiment for explaining the operation of the present invention, and the operation is not limited to deriving the above-described value.

10 and 11 are flowcharts according to an embodiment.

Referring to FIG. 10 , the server 100 may form pattern information ( 1001 ) and compare the pattern information with driving environment data ( 1002 ). A first similarity may be derived by comparing the pattern information and the driving environment data, and it may be determined whether the first similarity exceeds a first reference similarity ( 1003 ). When the first similarity exceeds the first reference similarity, the number of times the pattern information is compared with the driving environment data may be derived. As the number of times of comparison is increased, it can be determined that the data has a high reliability ( 1004 ). When the number of responses exceeds the standard number, the accident rate of the pattern information and the reference accident rate, which is the accident rate of the driving environment data, are compared (1005). When the accident rate of the pattern information exceeds the standard accident rate, a braking signal can be derived. have.

Referring to FIG. 11 , FIG. 11 is a flowchart illustrating an operation after a braking signal is derived from the server 100 and transmitted to the vehicle and the vehicle receives the braking signal. The vehicle may receive 1011 the braking signal transmitted by the server 100 . The vehicle may compare the pattern information included in the braking signal with the driving information currently driving of the vehicle, and may determine whether a second similarity that is a result of the comparison exceeds a predetermined second similarity ( 1013 ). When the second similarity exceeds the second reference similarity, it may be determined that the corresponding pattern information and the driving condition of the vehicle are matched, and thus the vehicle may be controlled based on the received braking signal (1014).

Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium storing instructions executable by a computer. Instructions may be stored in the form of program code, and when executed by a processor, may generate program modules to perform operations of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

The computer-readable recording medium includes any type of recording medium in which instructions readable by the computer are stored. For example, there may be a read only memory (ROM), a random access memory (RAM), a magnetic tape, a magnetic disk, a flash memory, an optical data storage device, and the like.

The disclosed embodiments have been described with reference to the accompanying drawings as described above. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be practiced in other forms than the disclosed embodiments without changing the technical spirit or essential features of the present invention. The disclosed embodiments are illustrative and should not be construed as limiting.

1: vehicle
100 : server
101: storage
102: control unit
103: communication department

Claims (15)

delete delete delete delete delete delete Storing at least one driving environment data including a plurality of elements, receiving driving information based on the driving environment data from a vehicle,
Deriving pattern information based on at least one of the driving environment data and the driving information,
a server for deriving a braking signal of the vehicle by comparing the pattern information with the at least one driving environment data;
and
receiving the braking signal, comparing the braking signal with the driving information,
deriving a second similarity between the braking signal and the driving information;
When the second degree of similarity exceeds a predetermined second reference degree of similarity,
and a vehicle controlling the vehicle based on the braking signal.
8. The method of claim 7,
The server is
Deriving a degree of similarity between the pattern information and the at least one driving environment data,
When the similarity exceeds a predetermined reference similarity,
A vehicle control system for deriving a braking signal of the vehicle based on the driving environment data corresponding to the similarity.
9. The method of claim 8,
The server is
When the number of the at least one driving environment data exceeding the predetermined reference degree of similarity exceeds the predetermined reference number,
A vehicle control system for deriving a braking signal of the vehicle by deriving an accident rate based on the driving environment data exceeding the reference similarity.
10. The method of claim 9,
The server is
When the accident rate exceeds a predetermined reference accident rate,
A vehicle control system for deriving a braking signal of the vehicle based on the pattern information.
A server storing at least one driving environment data including a plurality of elements receives driving information based on the driving environment data from a vehicle,
The server derives pattern information based on at least one of the driving environment data and the driving information,
The server compares the pattern information with the at least one driving environment data to derive a braking signal of the vehicle,
the server transmits the braking signal to the vehicle,
the vehicle compares the braking signal with the driving information to derive a second similarity between the braking signal and the driving information;
and controlling the vehicle based on the braking signal when the second similarity exceeds a predetermined second reference similarity.
12. The method of claim 11,
Deriving the vehicle's braking signal,
deriving a first similarity between the pattern information and the at least one driving environment data, respectively;
If the first degree of similarity exceeds a predetermined first reference degree of similarity,
and deriving a braking signal of the vehicle based on the driving environment data corresponding to the first similarity.
13. The method of claim 12,
Deriving the vehicle's braking signal,
When the number of the at least one driving environment data exceeding the predetermined first reference similarity degree exceeds the predetermined reference number,
A vehicle control system control method for deriving a braking signal of the vehicle by deriving an accident rate based on the driving environment data exceeding the first reference degree of similarity.
14. The method of claim 13,
Deriving the vehicle's braking signal,
When the accident rate exceeds a predetermined reference accident rate,
A vehicle control system control method for deriving a braking signal of the vehicle based on the pattern information.
12. The method of claim 11,
The braking signal is
A vehicle control system control method including the pattern information, collision warning output timing information, braking timing information, and braking intensity information.

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