KR20190140500A - System for automatic driving - Google Patents

Abstract

The present invention relates to an autonomous driving system, and more specifically, to an autonomous driving system that detects occupant information and hands-on intervention and secures driving stability. The autonomous driving system according to the present invention includes: a passenger status recognition unit obtaining passenger status information; a function recommendation unit selecting a recommendation function among functions which can be provided by receiving passenger status information; a driving setting unit setting a driving mode and a driving route in consideration of the passenger status information; and a hands-on detecting unit detecting hands-on of a driver.

Description

Autonomous Driving System {SYSTEM FOR AUTOMATIC DRIVING}

The present invention relates to an autonomous driving system, and more particularly, to an autonomous driving system that detects occupant information and hands-on intervention and secures driving stability.

The American Society of Automotive Engineers (SAE) divides autonomous driving technology into five stages depending on the level of technology.

According to the classification, the currently released vehicle is a level 3, at which the vehicle detects obstacles and can drive autonomously within a certain section, or a level at which the driver drives driving by analyzing / monitoring the movement section if the driver sets only the purpose. Corresponds to 4.

The prior art determines the driver's stimulus level by determining the driver's condition (Japanese Patent Laid-Open No. 2015-185245), or outputs a sound source using the driver's emotion recognition result (Korean Patent Publication No. 10-2014-0166785). It focuses only on the driver's condition, and has a limitation in that it does not consider providing a vehicle function according to different states of a plurality of occupants in the vehicle, and determines driving mode and hands-on intervention. Since it is impossible to propose a route setting update, there is a problem in that it cannot adaptively cope with various driving environments generated in an autonomous driving environment.

The present invention has been proposed to solve the above-described problems, and provides a service that selects and recommends vehicle functions by recognizing not only the driver but also the passenger's status information, determines the driving mode, and the driving route according to the hands-on intervention. To determine the purpose, to provide an autonomous driving system to increase the passenger satisfaction and driving stability.

The autonomous driving system according to the present invention includes a passenger status recognition unit for acquiring the passenger status information, a function recommendation unit for receiving the passenger status information, and selecting a recommended function among the available functions, and the passenger status information. And a hands-on detecting unit configured to detect a hand-on state of the driver and a driving setting unit for setting the driving mode and the driving route.

According to the autonomous driving system according to the embodiment of the present invention, it is possible to increase the satisfaction of the occupant in the vehicle by selecting and recommending vehicle functions using the status information of not only the driver but also the passenger.

According to an embodiment of the present invention, by determining the driving mode by using the information of the occupant in the vehicle, and determining the driving route according to the hands-on intervention, it is to increase the driving stability and reliability of collision avoidance of the autonomous vehicle. There is a possible effect.

The effects of the present invention are not limited to those mentioned above, and other effects that are not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view showing the structure of an autonomous driving system according to an embodiment of the present invention.
2A to 2D are diagrams illustrating exemplary driving using an autonomous driving system according to an exemplary embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, advantages and features of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and only the following embodiments are provided to those skilled in the art to which the present invention pertains. It is merely provided to easily inform the configuration and effects, the scope of the present invention is defined by the description of the claims.

Meanwhile, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and / or “comprising” refers to the presence of one or more other components, steps, operations and / or devices in which the mentioned components, steps, operations and / or devices are described. Or does not exclude addition.

Hereinafter, in order to help those skilled in the art to understand the present invention will be described first with respect to the background, the embodiment of the present invention will be described.

Regarding autonomous driving technology, the conventional technology considering hands-on is a hands-on mode in autonomous driving mode (hands-off mode) when it recognizes an accident risk. By transferring to the control of driving by switching to the, there is a problem that causes the situation that the driver who does not prepare for the situation to receive the control to avoid the accident.

The present invention has been proposed to solve such a problem, and proposes an autonomous driving system capable of reducing the possibility of a collision accident by exchanging driving mode information, hands-on detection information, and driving setting information according to a driving environment between vehicles. .

Referring to FIG. 1, the autonomous driving system according to an embodiment of the present invention recommends a passenger state recognition unit 100 for acquiring a passenger's state information, recommends a vehicle function, detects a hand-on intervention, a driving mode and It is configured to include a control unit 200 for determining the driving route.

In detail, the control unit 200 may set a driving mode in consideration of the passenger's status information and a function recommending unit 210 for selecting a recommendation function among functions that can receive and provide the passenger's status information. It includes a driving setting unit 220 for setting a path, and a hands-on detecting unit 230 for detecting whether the hands-on intervention.

The occupant state recognition unit 100 includes a driver state recognition unit 110 and a passenger state recognition unit 120, and includes at least one of an image acquisition unit, an audio acquisition unit, and a device linkage unit. Obtain status information.

The occupant state recognition unit 100 analyzes the image information acquired through the image acquisition unit, and recognizes the passenger's body type information, sleepiness or the like.

The function recommendation unit 210 selects a recommendation function that lowers the temperature setting of the air conditioner when analyzing the image information, for example, when the passenger wipes sweat, and recommends a recommendation function or a rest function to allow ventilation when the occupant is a driver and suspects drowsiness. Select the message presentation function.

If the passenger suspected of drowsiness is a passenger, not a driver, and the passenger is trying to wake up (such as massaging his neck, turning his neck, or blowing his eyes), he recommends ventilation. On the other hand, if the passenger intends to sleep intentionally without such an action, it provides a recommendation function such as seat reclining and in-car audio volume reduction.

In addition, the function recommender 210 provides a lock setting as a recommendation function for the window and the car door of the seat when the passenger is a young child.

The function recommender 210 analyzes voice information acquired through the voice acquirer to determine gender and age of the occupant or analyze speech information.

The function recommender 210 selects the warm function of the seat as a recommendation function and sets the in-vehicle air conditioner according to the analysis result of the speech information such as “hot, cold” when the passenger is an elderly person. Select changes as recommended features.

The device linkage unit may interlock with a wearable device worn by the occupant or a smartphone possessed by the occupant to acquire a passenger's pulse, sleep information, schedule information, and the like.

The function recommender 210 selects a function such as a ventilation setting, an audio setting, and the like to prevent a drowsy driving and recommend a function as a recommended function when it is confirmed that sufficient sleep is not made the previous day through the wearable device of the driver.

The driving setting unit 220 may set the driving mode as the first driving mode (comfortable driving mode, driving mode for minimizing acceleration and lane change) in consideration of information of passengers, schedule information (for example, a meeting schedule and a place), or the like. It determines with the 2nd driving mode (shortest driving mode, the mode which makes it drive with the shortest time, even if acceleration and lane change are frequent).

For example, when the passenger is an elderly person or a young child, the driving setting unit 220 sets the first driving mode for driving stability and satisfaction of the passenger. If necessary, set the second driving mode.

The controller 200 controls the recommendation functions selected by the function recommender 210 so that different recommendation functions are provided without mutual interference between the passengers.

For example, if the driver is sweating despite wearing a short-sleeved shirt, the air conditioner should be turned on, and the passenger is a young child and wearing a mask. The overstress is automatically controlled and the heating function is activated on the passenger's seat.

The function recommender 210 according to an exemplary embodiment of the present invention displays a recommendation function in a widget form in a cluster to provide a driver with a function control right.

The driver may select on / off for the recommended function by using a function control right through gesture recognition, voice recognition, or the like.

According to the exemplary embodiment of the present invention, the driving mode information determined by the driving setting unit 220 is interchanged with surrounding vehicles through the communication unit 300.

2A to 2D, a driving embodiment using an autonomous driving system according to an embodiment of the present invention will be described.

2A illustrates a current situation for describing an example driving in accordance with an embodiment of the present invention.

It is assumed that the first, second, and third lanes are driving lanes, the first lane is a bus lane, the second lane is crowded with the vehicle ahead, and the third lane has a smooth traffic flow.

The first vehicle A is driving in the first driving mode (comfortable driving mode, driving mode for minimizing acceleration and lane change) according to the recognition result and the driving setting result of the occupant state recognition unit described above. It is assumed that the second vehicle B is driving in the second driving mode (the shortest driving mode, the mode for driving in the shortest time even if the acceleration and the lane change are frequent) according to the occupant status information and the driving setting result.

Referring to FIG. 2B, since the lane change should be minimized according to the first driving mode, the first vehicle A is decelerated while maintaining a safety distance with the preceding vehicle C to maintain the second lane as the driving lane.

On the other hand, since the second vehicle B must arrive at the destination within a shorter time even if the lane change occurs, the second vehicle B changes the driving lane to the third lane to drive.

When the hands-on of the driver's steering wheel is detected through the hands-on detecting unit 230 of the first vehicle A, the first vehicle A recognizes that the control right is requested to be transferred from the autonomous driving mode to the driver control mode. At the same time, it is recognized whether the second vehicle B is scheduled to be changed to the third vehicle or the completion of the change of the vehicle according to the driving mode (second driving mode) of the second vehicle B which is followed from the rear.

Therefore, in the situation where the driver of the first vehicle A is expected to change to the third lane following the control transfer request, the driver of the first vehicle A does not properly check the side mirror or the second vehicle. If (B) exists in the blind spot of the first vehicle A, there is a risk of an accident.

The controller 200 of the first vehicle A may warn the driver of the first vehicle that there is a possibility of collision with the second vehicle B when an attempt is made to change the lane in accordance with the transfer of the driving control right. Through sound, etc.). In addition, when the possibility of the collision is expected, the control right is returned to return the first vehicle A to the autonomous driving mode, and the vehicle is maintained in the second vehicle according to the preset driving mode.

In the above-described embodiment, the driving situation, the time of detecting the hands-on of the first vehicle A, the attempt to change the lane of the second vehicle B, and the separation distance information of the first vehicle A and the second vehicle B In consideration of the above, it is assumed that the second vehicle B is given a priority.

Referring to FIG. 2C, it is assumed that the first vehicle A changes a driving lane according to hands-on intervention.

Although the first vehicle A is traveling in the first driving mode, for example, the driver's hands-on intervention is generated according to the sudden stop situation of the preceding vehicle C. FIG.

At this time, according to the existing driving mode (first driving mode), the first vehicle A will not generate a lane change, but the lane is changed according to hands-on intervention.

When the second vehicle B receives the driving information according to the hands-on intervention of the first vehicle A, and thus changes the vehicle according to the driving mode (second driving mode) of the second vehicle B, the first vehicle A The speed of the second vehicle is adjusted so that the collision with the vehicle A does not occur, and the lane is changed.

In the above-described embodiment, the driving situation, the time of detecting the hands-on of the first vehicle A, the attempt to change the lane of the second vehicle B, and the separation distance information of the first vehicle A and the second vehicle B In consideration of the above, it is assumed that the first vehicle A is given a priority.

That is, the driving situation, the time of detecting the hands-on of the first vehicle A, the attempt to change the lane of the second vehicle B, and the separation distance information of the first vehicle A and the second vehicle B may be considered. At this time, if the second vehicle B has already completed the lane change to the third lane and is traveling next to the first vehicle, even if the hands-on of the first vehicle A is detected, the first vehicle ( No transfer of control to A) occurs.

Accordingly, the first vehicle A maintains driving in the second direction according to the preset first driving mode, and deceleration driving control is performed so that collision with the preceding vehicle C and the second vehicle B does not occur.

2D illustrates a case where both the first vehicle A and the second vehicle B are driving in the first travel mode, unlike the above description.

At this time, it is assumed that the first, second, and third lanes are driving lanes, the first lane is a bus-only lane, the second lane is crowded with traffic ahead, and the third lane has a smooth traffic flow ahead. Is the same.

In the situation where the first vehicle A is driving in accordance with the first driving mode, the hands-on intervention is detected, and the driving lane is changed to the third lane by the driver's operation.

The second vehicle B recognizes the lane change of the first vehicle A in consideration of the driving setting update information (hands-on intervention information) received from the first vehicle A. FIG.

As long as the third vehicle is not interrupted in front of the second vehicle B, the braking target distance of the second vehicle B is increased based on the preceding vehicle C, so that the first vehicle A is By decelerating relatively slowly rather than being present, it is possible to travel more in line with the purpose of the first travel mode.

So far I looked at the center of the embodiments of the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

100: occupant state recognition unit 110: driver state recognition unit
120: passenger status recognition unit 200: control unit
210: function recommendation unit 220: driving setting unit
230: hands-on detection unit 400: communication unit
C: preceding vehicle A: first vehicle
B: second vehicle

Claims (6)

A rider status recognition unit for obtaining rider status information;
A function recommending unit which receives the status information of the occupant and selects a recommendation function from among available functions;
A driving setting unit configured to set a driving mode and a driving route in consideration of the status information of the occupant; And
Hands-on detector to detect whether the driver is on
Autonomous driving system comprising a.
The method of claim 1,
The occupant state recognition unit may include at least one of an image acquisition unit, an audio acquisition unit, and a device linkage unit to acquire state information of a driver and a passenger.
Autonomous driving system.
The method of claim 2,
The function recommender selects a recommendation function to be provided to each occupant according to the driver's and passenger's status information, and controls the recommendation function so that there is no mutual interference of the recommendation function.
Autonomous driving system.
The method of claim 1,
The function recommender is to provide a function control right by displaying the recommended function in the form of a widget on the cluster.
Autonomous driving system.
The method of claim 1,
The driving setting unit may determine a driving mode corresponding to the state information among preset autonomous driving modes in consideration of the state information of the occupant, and the information about the driving mode may be interchanged with surrounding vehicles through a communication unit.
Autonomous driving system.
The method of claim 5,
The driving setting unit may update and set the driving path in consideration of the driving mode of the own vehicle and the surrounding vehicles, whether or not the hands-on intervention of the own vehicle and the driving setting change information according to the hands-on intervention of the neighboring vehicles are performed.
Autonomous driving system.

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