KR20120075945A - System for making a driver operate a vehicle easily and operation control method of the vehicle using the same - Google Patents

Abstract

PURPOSE: A system for supporting a driver and a method for controlling the driving of a vehicle using the same are provided to implement an intelligence automatic vehicle controlling operation according to driving environment by verifying the optimal driving path of the vehicle. CONSTITUTION: A system for supporting a driver includes detecting sensors and an electronic controlling unit. The detecting sensors detect other vehicles around a vehicle and generate detection information(S10, S20). The electronic controlling unit divides the surrounding region of the vehicle into a plurality of regions. The electronic controlling unit is based on detection information based on the detection sensors. The electronic controlling unit generates driving information for other vehicles and verifies the driving environment of the vehicle according to the driving information(S40). The electronic controlling unit determines the steering direction of the vehicle based on the verified driving environment(S50).

Description

Driver's convenience system and vehicle driving control method using the same {SYSTEM FOR MAKING A DRIVER OPERATE A VEHICLE EASILY AND OPERATION CONTROL METHOD OF THE VEHICLE USING THE SAME}

The present invention relates to a driver convenience system and a vehicle driving control method using the same, which collects information on a driving vehicle in the vicinity by using a sensor installed in a vehicle, and determines an optimal driving route based on the collected information. A driver convenience system for performing intelligent vehicle automatic control according to a driving environment and a vehicle driving control method using the same.

Driver comfort systems, such as the Adaptive Cruise Control (ACC) system, allow the throttle valves, brakes and transmissions of the vehicle to be moved through the position and distance of the preceding vehicle detected by the radar mounted in front of the vehicle. It is a system that maintains proper distance with the preceding vehicle by performing proper acceleration and deceleration by automatic control.

This ACC system is an important vehicle control technology in the field of Intelligent Transportation System (ITS), which is currently being put into practical use. This ACC system can be thought of as extending the function of the cruise control system. Like the constant speed control system, the steering wheel operation is left to the driver or the throttle valve and the brake of the engine controlled by the pedals are transferred to the electronic control unit. Automatic operation by the actuator according to the command gives the driver's convenience (the driver only handles the steering wheel) and stability (prevents accidental accidents by the driver) and the efficiency of the road use (close the car in the city).

The above-described ACC system employs an inter-vehicle distance / speed measurement sensor to control driving while maintaining a distance between the preceding vehicle and the vehicle, for example, about 100 meters in a high-speed driving situation such as a highway.

If the vehicle is running slowly, such as in the city, a traffic jam assist (TJA) system is used to keep the gap between the preceding vehicles narrow. The driver's fatigue can be reduced by automatically accelerating and decelerating. The TJA system controls the vehicle to travel while maintaining a proper distance, such as 50 meters, in advance and when driving in a city or traffic region.

The problem to be solved by the present invention is to collect information about the driving vehicle in the vicinity by using a sensor installed in the vehicle, and determine the optimal driving route based on the collected information to perform intelligent vehicle automatic control according to the driving environment To provide a driver convenience system and a vehicle driving control method using the same.

According to an aspect of the present invention, at least one sensor for sensing the other vehicle running around the own vehicle to generate the detection information; The surrounding area of the own vehicle is divided into a plurality of areas, and driving information about another vehicle is generated based on the sensing information generated by the at least one sensing sensor, and the driving environment is judged according to the driving information. According to the present invention, there is provided a driver comfort system comprising an electronic control unit for determining the steering direction of the host vehicle.

The electronic control unit includes a driving information generation unit that generates driving information for another vehicle based on the sensing information generated by the at least one sensing sensor; A determination unit which extracts acceleration information and position information of the vehicle from driving information of another vehicle and determines a driving environment according to the driving of another vehicle in a plurality of areas; And a determining unit configured to determine a steering direction of the own vehicle by giving priority to the selected driving lane according to the determined driving environment.

The electronic control unit may divide the peripheral area of the host vehicle into nine areas of a center area, a front area, a rear area, a left area, a right area, a left front area, a right front area, a left rear area, and a right rear area. The electronic control unit may include: a first operation of determining a steering direction of the own vehicle by giving priority to the left lane when it is determined that the first driving environment in which another vehicle located in the left area or the left rear area moves the area to the front area; A second operation of determining a steering direction of the own vehicle by giving priority to the right lane when it is determined that the second driving environment in which the other vehicle located in the right area or the right rear area moves the area to the front area; And a third operation of determining a steering direction of the host vehicle so as to maintain a current driving state when it is determined that the third driving environment in which the other vehicle located in the front region moves to the left front region or the right front region. Can be done.

According to another aspect of the invention, the step of detecting the other vehicle running around the host vehicle by at least one detection sensor to generate the detection information; And dividing the surrounding area of the own vehicle into a plurality of areas by the electronic control unit, generating driving information on another vehicle based on the detected information, determining the driving environment according to the driving information, and driving the own vehicle according to the determined driving environment. A vehicle driving control method using a driver comfort system comprising determining a steering direction of a vehicle is provided.

The step performed by the electronic control unit may include generating driving information about another vehicle based on the sensing information generated by the at least one sensing sensor; Extracting the acceleration information and the position information of the vehicle from the driving information of the vehicle to determine a driving environment according to the driving of the vehicle in the plurality of areas; And determining a steering direction of the own vehicle by giving priority to the selected driving lane according to the determined driving environment.

The step performed by the electronic control unit may further include displaying the driving environment and the determined steering direction through voice or video.

The plurality of regions may be divided into nine regions of a center region, a front region, a rear region, a left region, a right region, a left front region, a right front region, a left rear region, and a right rear region.

The step performed by the electronic control unit is to determine the steering direction of the own vehicle by giving priority to the left lane when it is determined that the first driving environment in which another vehicle located in the left area or the left rear area moves the area to the front area. First operation; A second operation of determining a steering direction of the own vehicle by giving priority to the right lane when it is determined that the second driving environment in which the other vehicle located in the right area or the right rear area moves the area to the front area; And a third operation of determining a steering direction of the host vehicle so as to maintain a current driving state when it is determined that the third driving environment in which the other vehicle located in the front region moves to the left front region or the right front region. Can be done.

According to an exemplary embodiment of the present invention, intelligent vehicle automatic control according to a driving environment is obtained by collecting information on another driving vehicle driving around by using a sensor installed in a vehicle, and determining an optimal driving route based on the collected information. There is an effect that can be performed.

1 is a block diagram illustrating a driver convenience system according to an embodiment of the present invention.
2 is a view for explaining a vehicle driving environment in a driver convenience system according to an embodiment of the present invention.
3 is a view for explaining a vehicle driving environment divided into nine regions in a driver convenience system according to an embodiment of the present invention.
4 and 5 are flowcharts illustrating a method of performing driving control of a vehicle using a driver convenience system 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.

1 is a block diagram illustrating a driver comfort system according to an embodiment of the present invention, FIG. 2 is a view for explaining a vehicle driving environment in a driver comfort system according to an embodiment of the present invention, and FIG. 3. FIG. Is a view illustrating a vehicle driving environment divided into nine regions in a driver convenience system according to an embodiment of the present invention.

Referring to FIG. 1, the driver convenience system 100 according to an exemplary embodiment of the present invention may be applied to autonomous driving that is driven by itself without the driver's manipulation. For example, the driver convenience system 100 may be applied to an Adaptive Cruise Control (ACC) system or a Traffic Jam Assist (TJA) system.

Here, the ACC system detects the position and distance of the preceding vehicle at high speed and automatically controls the throttle valve, brake, and transmission through the detected position and distance of the preceding vehicle to perform appropriate acceleration and deceleration. The TJA system detects the position and distance of a preceding vehicle when driving in a downtown or congested section, and automatically controls the throttle valve, brake, and transmission through the detected position and distance of the preceding vehicle to perform appropriate acceleration and deceleration.

The driver convenience system 100 includes a front sensor 110, a side sensor 120, a rear sensor 130, and an electronic control unit 140.

The front sensor 110 is installed in front of the vehicle. The front sensor 110 may be any one of a radar, a laser scanner, a camera, and an ultrasonic sensor. The front sensor 110 may radiate a detection signal to a preceding vehicle and receive a signal reflected from the preceding vehicle and returned. The front detection sensor 110 may detect whether an object exists in a predetermined front detection area.

Side detection sensor 120 is installed on the left and right sides of the vehicle, respectively. The side detection sensor 120 may be a radar similarly to the front detection sensor 110. The side detection sensor 120 may detect whether an object exists in a predetermined side detection area.

The rear sensor 130 is installed at the rear of the vehicle, respectively. The rear sensing sensor 130 may be a radar similarly to the front sensing sensor 110. The rear sensor 130 may detect whether an object exists in a predetermined rear sensing region.

The position and number of the front sensor 110, the side sensor 120, and the rear sensor 130 may be changed. For example, four ultrasonic sensors may be installed as the front sensing sensor 110 and the rear sensing sensor 120, and two ultrasonic sensors may be installed at the left and right sides as the side sensing sensor 120, for a total of 12 ultrasonic sensors. Sensors can be installed.

The electronic control unit 140 divides the surrounding area of the host vehicle into a plurality of areas, generates driving information on another vehicle based on the sensing information generated by the at least one sensing sensor, and generates a driving environment according to the driving information. By judging, the steering direction of the host vehicle may be determined according to the determined driving environment.

The electronic control unit 140 may include a driving information generation unit 141, a determination unit 142, a determination unit 143, and a guide unit 144.

The driving information generator 141 may generate driving information about another vehicle based on the sensing information generated by the sensing sensors 110, 120, and 130.

The driving information generation unit 141 analyzes the detection signal received by the front sensor 110 to extract the position and acceleration of the preceding vehicle to generate driving information. The driving information may include a distance, a speed, an angle, and the like from the preceding vehicle. In addition, the driving information generation unit 141 analyzes the detection signal received by the side sensor 120 to extract the position and acceleration of the vehicle driving in the adjacent lane to generate driving information. The driving information may include a distance, a speed, an angle, and the like from the vehicle driving in the adjacent lane. In addition, the driving information generation unit 141 analyzes the detection signal received by the rear sensor 130 to extract the position and acceleration of the trailing vehicle to generate driving information. The driving information may include a distance, a speed, an angle, and the like from a trailing vehicle.

In addition, the driving information generation unit 141 may receive a command of the lane change mode instructed from the driver. When the command of the lane change mode is instructed, an operation of determining the presence or absence of an object on the side of the vehicle may be performed, but the present invention is not limited thereto.

The determination unit 142 extracts the acceleration information and the position information of the vehicle from the driving information of the vehicle to predict the left and right mobility of the other vehicle in the plurality of areas to determine the driving environment according to the driving of the other vehicle.

Here, the location information is based on the division of the area around the host vehicle into a plurality of areas. As shown in FIG. 3, the peripheral region of the host vehicle is, for example, a center region N3, a front region P1, a rear region N4, a left region P2, a right region P3, and a left front region N1. The right front region N2, the left rear region P4, and the right rear region P5 may be divided into nine regions.

Therefore, the determination unit 142 may drive the first vehicle when another vehicle located in the left area P2 or the left rear area P4 moves to the front area P1 based on the extracted acceleration information and the location information. Judging by the environment. Similarly, the determination unit 142 determines that the second driving environment is a case where another vehicle located in the right area P3 or the right rear area P5 moves to the front area P1. Similarly, the determination unit 142 may determine the third driving environment when another vehicle located in the front region P1 moves to the left front region N1 or the right front region N2.

The determination unit 143 may determine the steering direction of the own vehicle by giving priority to the selected driving lane according to the determined driving environment.

Accordingly, when it is determined that the other vehicle located in the left area P2 or the left rear area P4 is the first driving environment in which the area moves to the front area, the determination unit 143 gives priority to the left lane to A first operation of determining the steering direction is performed.

Similarly, when it is determined that the second driving environment in which another vehicle located in the right area P3 or the right rear area P5 moves the area to the front area P1 is determined, the determination unit 143 may give priority to the right lane and drive the own vehicle. The second operation of determining the steering direction of the vehicle may be performed.

Similarly, when the determination unit 143 determines that the third driving environment in which the other vehicle located in the front area P1 moves to the left front area N1 or the right front area N2 is maintained, the host vehicle may maintain the current driving state. The third operation of determining the steering direction of the vehicle may be performed.

The guide unit 144 may display the driving environment and the determined steering direction through voice or an image. The guide unit 144 may provide a guide message about the driving environment and the determined steering direction through a human machine interface (HMI) screen or a speaker of the display device installed in the vehicle. Accordingly, the driver can freely travel while recognizing the current driving environment, thereby increasing the convenience of the driver.

If there is no separate input from the vehicle driver after the guide message is provided by the guide unit 144, the steering operation of the vehicle may proceed according to the determined steering direction. If there is an input reflecting a separate intention of rejection from the vehicle driver, the steering operation state which has been previously performed may be maintained without reflecting the steering operation according to the determined steering direction.

4 and 5 are flowcharts illustrating a method of performing driving control of a vehicle using a driver convenience system according to an embodiment of the present invention.

4 and 5, the front sensing sensor 110, the side sensing sensor 120, and the rear sensing sensor 130 generate sensing information about other vehicles that are driving around the vehicle (S10).

The detection information generated by the front detection sensor 110 is generated by radiating a detection signal to a preceding vehicle using any one of a radar, a laser scanner, a camera, and an ultrasonic sensor, and receiving a signal reflected from the preceding vehicle and returned. It may be sensing information. The front detection sensor 110 may detect whether an object exists in a predetermined front detection area.

The sensing information generated by the side sensor 120 installed on each of the left and right sides of the vehicle radiates a detection signal to another vehicle in an adjacent lane using various sensors used in the front sensor 110 and is reflected from the vehicle. It may be sensing information generated by receiving the returned signal.

The sensing information generated by the rear sensing sensors 130 installed at the rear of the vehicle radiates a detection signal to the rear vehicle located at the rear using various sensors used in the front sensing sensor 110 and is reflected back from the vehicle. It may be sensing information generated by receiving a signal.

The driving information generator 141 generates driving information on another vehicle based on the sensing information generated by the sensing sensors 110, 120, and 130 (S20). The driving information generator 141 analyzes the sensing signals received by the sensing sensors 110, 120, and 130 to extract the position and the acceleration of the preceding vehicle to generate driving information. The driving information may include a distance, a speed, an angle, and the like from the preceding vehicle.

After the driving information is generated by the driving information generation unit 141, the determination unit 142 extracts the acceleration information and the position information of the vehicle from the driving information of the vehicle (S30), and determines the driving of the vehicle in the plurality of areas. Determine the driving environment according to (S40).

Here, the location information is based on the division of the area around the host vehicle into a plurality of areas. The peripheral area of the host vehicle may be divided into nine areas: a center area, a front area, a rear area, a left area, a right area, a left front area, a right front area, a left rear area, and a right rear area.

Therefore, the determination unit 142 determines whether the current driving environment is the first driving environment based on the extracted acceleration information and the position information (S41). As a result of the determination, when another vehicle located in the left region or the left rear region moves to the front region, it is determined as the first driving environment (S42). On the other hand, the determination unit 142 determines whether the current driving environment is the second driving environment if not the first driving environment (S43). As a result of the determination, when another vehicle located in the right region or the right rear region moves to the front region, it is determined as the second driving environment (S44). On the other hand, the determination unit 142 determines whether the current driving environment is the third driving environment, if not the second driving environment (S45). As a result of the determination, when another vehicle located in the front region moves to the left front region or the right front region, it is determined as the third driving environment (S46).

The determination unit 143 determines the steering direction of the host vehicle by giving priority to the selected driving lane according to the determined driving environment (S50).

The determination unit 143 determines the steering direction of the car by giving priority to the left lane when it is determined that the first driving environment in which another vehicle located in the left area or the left rear area moves the area to the front area. The operation is performed (S51).

If it is determined that the second driving environment in which the other vehicle located in the right area or the right rear area moves to the front area, the determination unit 143 determines the steering direction of the own vehicle by giving priority to the right lane. The operation is performed (S52).

The determination unit 143 determines the steering direction of the host vehicle to maintain the current driving state when it is determined that the third driving environment in which the other vehicle located in the front area moves to the left front area or the right front area. The operation is performed (S53).

The guide unit 144 provides a guide message about the driving environment and the determined steering direction through the display device or the speaker installed in the vehicle (S60).

If there is no separate input from the vehicle driver after the guide message is provided by the guide unit 144, the steering operation of the vehicle may proceed according to the determined steering direction. If there is an input reflecting a separate intention of rejection from the vehicle driver, the steering operation state which has been previously performed may be maintained without reflecting the steering operation according to the determined steering direction.

The invention being thus described, it will be obvious that the same way may be varied in many ways. Such modifications are intended to be within the spirit and scope of the invention as defined by the appended claims.

100: driver comfort system 110: front detection sensor
120: side detection sensor 130: rear detection sensor
140: electronic control unit 141: driving information generation unit
142: determination unit 143: determination unit
144: guide

Claims (8)

At least one detection sensor configured to detect other vehicles traveling around the own vehicle and generate detection information;
The peripheral area of the host vehicle is divided into a plurality of areas, and driving information about another vehicle is generated based on the sensing information generated by the at least one sensing sensor, and the driving environment is determined based on the driving information. Driver control system comprising an electronic control unit for determining the steering direction of the host vehicle according to the driving environment. The method according to claim 1,
The electronic control unit,
A driving information generation unit generating driving information on another vehicle based on the sensing information generated by the at least one sensing sensor;
A determination unit which extracts acceleration information and position information of the vehicle from the driving information of the other vehicle and determines a driving environment according to the driving of another vehicle in the plurality of areas; And
And a determination unit which determines a steering direction of the own vehicle by giving priority to the selected driving lane according to the determined driving environment. The method according to claim 2,
The electronic control unit
A driver's convenience system comprising dividing the peripheral area of the host vehicle into nine areas: a center area, a front area, a rear area, a left area, a right area, a left front area, a right front area, a left rear area, and a right rear area. . The method according to claim 3,
The electronic control unit
A first operation of determining a steering direction of the own vehicle by giving priority to the left lane when it is determined that the other vehicle located in the left area or the left rear area moves the area to the front area;
A second operation of determining a steering direction of the own vehicle by giving priority to the right lane when it is determined that the second driving environment in which the other vehicle located in the right area or the right rear area moves to the front area; And
If another vehicle located in the front area is determined to be the third driving environment in which the area moves to the left front area or the right front area, perform at least one of the third operations of determining the steering direction of the own vehicle to maintain the current driving state. Driver comfort system, characterized in that. Generating sensing information by detecting another vehicle driving around the host vehicle by at least one sensing sensor; And
The electronic control unit divides the surrounding area of the host vehicle into a plurality of areas, generates driving information on another vehicle based on the sensed information, determines the driving environment according to the driving information, and determines the driving environment. And an electronic control unit for determining a steering direction of the host vehicle according to the present invention. The method according to claim 5,
The step performed by the electronic control unit,
Generating driving information on another vehicle based on the sensing information generated by the at least one sensing sensor;
Extracting acceleration information and position information of the vehicle from the driving information of the vehicle to determine a driving environment according to the driving of the vehicle in the plurality of areas; And
And determining a steering direction of the host vehicle by assigning a priority to the selected driving lane according to the determined driving environment. The method of claim 6,
The plurality of areas may be divided into nine areas including a center area, a front area, a rear area, a left area, a right area, a left front area, a right front area, a left rear area, and a right rear area. A vehicle driving control method using a driver convenience system. The method of claim 7,
The step performed by the electronic control unit,
A first operation of determining a steering direction of the own vehicle by giving priority to the left lane when it is determined that the other vehicle located in the left area or the left rear area moves the area to the front area;
A second operation of determining a steering direction of the own vehicle by giving priority to the right lane when it is determined that the second driving environment in which the other vehicle located in the right area or the right rear area moves the area to the front area; And
If another vehicle located in the front area is determined to be the third driving environment in which the area moves to the left front area or the right front area, perform at least one of the third operations of determining the steering direction of the own vehicle to maintain the current driving state. Vehicle driving control method using a driver convenience system, characterized in that.

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