KR20150083273A - steering wheel system and method for warning driver danger using the same - Google Patents

Abstract

The present invention relates to a steering wheel system and a method for warning a driver of danger by informing the driver of the type and direction of the danger through the senses of touch, hearing and sight through discriminated vibration, sound and light. The steering wheel system comprises: a steering wheel which controls the travelling direction of a vehicle; a vibrating part which is mounted on the steering wheel to vibrate the steering wheel; a sensor part which detects the traveling environment of a vehicle; and a danger warning control part which checks danger elements by analyzing the traveling environment and traveling data of a vehicle from sensing signals of the sensor part, determines a vibration pattern in accordance with danger elements, and operates the vibrating part in accordance with the determined vibration pattern, wherein the vibration pattern comprises a number of vibrating motors, and the danger warning control part individually operates a vibrating motor disposed in the direction of a danger element in a vibration pattern determined in accordance with the type of danger element, thereby warning the driver of the type and direction of a danger element.

Description

[0001] The present invention relates to a steering wheel system, and more particularly,

The present invention relates to a steering wheel system, and more particularly, to a steering wheel system capable of informing a driver of the kind and direction of a danger through a tactile sense, auditory sense, and vision of a driver by using differentiated vibration, sound, And a driver danger warning method using the same.

In general, as technology becomes more sophisticated, automobiles are becoming increasingly sophisticated technologies.

Therefore, for the convenience and safety of the driver, the automobile is equipped with a driver assistance system such as a front-and-rear distance measuring device and a lane departure detecting device.

Here, the front-and-rear distance measuring device uses the sensor to measure the distance between the front and rear vehicles during operation to provide information to the driver, and the lane departure detection device identifies the lane during vehicle operation, Information can be provided to the driver.

However, such driver risk information is transmitted to the driver through an indicator lamp or an integrated information display of the vehicle's center pace, so that it is difficult for the driver to observe the driver's front during operation.

To solve this problem, a vibration steering wheel has been developed which imparts vibration to the steering wheel to transmit information to the driver.

Related Prior Art Korean Patent Registration No. 10-0747289 (Aug. 7, 2007) discloses an overspeed notification device based on a steering wheel vibration of a vehicle.

However, the existing patent has a simple structure to transmit navigation information to the driver through the vibration of the wheel, or to notify the driver of the risk of overspeed / drowsiness.

Therefore, since the conventional patent does not inform the driver of the information about the various risks occurring during the driving of the vehicle, the driver can not clearly recognize the type and direction of the risk, .

An object of the present invention is to provide a steering wheel in which a plurality of vibration motors are disposed on a steering wheel so that a vibration motor disposed in a direction of a dangerous element is driven separately in a determined vibration pattern, A steering wheel system that warns by vibration, and a driver danger warning method using the steering wheel system.

An object of the present invention is to provide a steering wheel in which a plurality of vibration motors and light emitting elements are disposed on a steering wheel so that a vibration motor and a light emitting element arranged in the direction of a dangerous element are individually driven in a determined vibration and a light emitting pattern , A steering wheel system that warns the direction and kind of a dangerous element by vibration and light emission, and a driver danger warning method using the steering wheel system.

According to an embodiment of the present invention, there is provided a vibration motor including a vibration motor, a light emitting device, and a speaker arranged on a steering wheel, The present invention provides a steering wheel system that alerts the direction and kind of a dangerous element by vibration, light emission, and sound by separately driving the vehicle with an acoustic pattern and a driver danger warning method using the steering wheel system.

A steering wheel system according to an embodiment of the present invention includes a steering wheel for controlling a traveling direction of a vehicle, a vibration unit mounted on the steering wheel to vibrate the steering wheel, a sensor unit for sensing a traveling environment of the vehicle, And a danger warning control unit for analyzing the driving environment of the vehicle and the driving information of the vehicle from the sensing signal of the negative to identify the dangerous element, determining the vibration pattern according to the dangerous element, and driving the vibration unit according to the determined vibration pattern, And the danger warning control unit drives the vibration motor disposed in the direction of the hazardous element individually in a vibration pattern determined according to the type of the hazardous element and warns the direction and kind of the dangerous element by vibration have.

Here, the vibrating portion may include at least one of M first vibration motors disposed at the handle portion of the steering wheel and N second vibration motors disposed at the center portion of the steering wheel.

The danger warning control unit includes an integrity checking unit for collecting information on the driving environment of the vehicle and the driving directions of the vehicle from the sensing signal of the sensor unit and verifying the integrity of the collected information, A risk factor analyzing unit for analyzing the driving environment and information related to the driver's driving to identify the risk factors, a risk factor analyzing unit for analyzing the types and directions of the identified risk factors, and determining vibration patterns according to the types of the risk factors analyzed A vibration motor determining unit for calculating a position of the vibration motor according to the direction of the analyzed risk element and determining a vibration motor to be driven according to the calculated position of the vibration motor, A risk factor analysis unit, a vibration pattern determination unit, and a vibration motor determination unit.

Then, the danger warning control unit can determine the vibration pattern by using at least one of the vibration intensity, the vibration period, the number of vibrations, and the vibration amplitude of the vibration motor depending on the dangerous element.

Also, a driver risk warning method using a steering wheel system including a vibration motor mounted on a steering wheel and a sensor for detecting the driving environment of the vehicle collects information on a driving environment of the vehicle and driving-related information from the sensor Analyzing the driving environment and driver driving related information of the vehicle on the basis of the confirmed integrity information, and checking the risk factors based on the analysis. A step of analyzing the kind and direction of the identified risk elements, a step of determining a vibration pattern according to the type of the analyzed risk element, calculating the position of the vibration motor according to the direction of the analyzed risk element, Determining a vibration motor to be driven in accordance with a position of the vibration motor; , By individual drives, and it may include the step of warning the direction and type of hazard due to vibration.

According to an embodiment of the present invention, a plurality of vibration motors, a light emitting element, and a speaker are disposed on a steering wheel so that a vibration motor, a light emitting element, and a speaker disposed in a direction of a dangerous element are arranged in a predetermined vibration, , It is possible to provide a safe driving environment by informing the driver of the kind and direction of the danger through the tactile sense, auditory sense, and vision of the driver by warning the direction and kind of the dangerous element by vibration, It is effective.

As described above, according to the present invention, the kind and direction of the danger are transmitted to the driver through the vibration of the steering wheel, and the steering wheel, which is in constant contact with the driver, is given any differentiated vibration, And the type, so that the risk faced can be met.

In addition, the present invention additionally provides a driver with a differentiated light pattern or sound pattern, in addition to vibration, through light, visually or through sound, audibly, so that the driver can intuitively control the dangerous position and / By being able to recognize the kind, it is possible to cope with the danger faced.

1 is a block diagram for explaining a steering wheel system according to the present invention;
FIG. 2 is a block diagram showing the danger warning control unit of FIG.
Figs. 3 and 4 are diagrams showing control of the vibration motor according to the dangerous direction
5 to 7 are diagrams showing operation examples of a steering wheel system for transmitting a dangerous situation to a driver
8A-8B, 9A-9E, 10A-10E and 11 are graphs showing embodiments of the vibration pattern according to the steering wheel system
12 is an exploded view of the steering wheel on which the vibration motor is mounted
13 is an exploded view
14 is a view showing an arrangement of a vibration motor mounted on a steering wheel
15 is a view showing the intervals of vibration motors
16 is a view showing a cable connecting the vibration motor
17 is a flowchart for explaining a driver risk warning method using the steering wheel system according to the present invention.

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

The suffix "module" and " part "for components used in the following description are given merely for ease of description, and the" module "and" part "

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As used herein, terms used in the present invention are selected from general terms that are widely used in the present invention while taking into account the functions of the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the emergence of new technologies. In addition, in certain cases, there may be a term arbitrarily selected by the applicant, in which case the meaning thereof will be described in the description of the corresponding invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification.

1 is a block diagram illustrating a steering wheel system according to the present invention.

As shown in FIG. 1, the present invention may include a steering wheel 400, a vibration unit 300, a sensor unit 100, and a danger warning control unit 200.

In addition, the light emitting unit 500 and the speaker unit 600 may be further included.

The steering wheel 400 is a steering device for controlling the running direction of the vehicle and mounted in front of the driver's seat inside the vehicle.

The vibration unit 300 is attached to the steering wheel 400 and can vibrate the steering wheel 400 with a predetermined vibration pattern according to the direction and type of the dangerous element.

As an example, the vibration unit 300 may include a plurality of vibration motors arranged at regular intervals.

Here, the vibration unit 300 includes M first vibration motors disposed at the handle of the steering wheel 400 and at least one of the N second vibration motors disposed at the center of the steering wheel 400 One can be included.

And, the number of the first vibration motors may be larger than the number of the second vibration motors.

However, as the case may be, the number of the first vibration motors may be smaller than the number of the second vibration motors, and as another case, the number of the first vibration motors and the number of the second vibration motors may be equal to each other .

Then, the first vibration motors may be arranged at equal intervals from each other, and the second vibration motors may be arranged at equal intervals from each other.

Here, the interval between the first vibration motors and the interval between the second vibration motors may be different from each other.

However, in some cases, the interval between the first vibration motors and the interval between the second vibration motors may be equal to each other.

Further, in the M first vibration motors, the M cables may be electrically connected to each other individually, and the N second vibration motors may be electrically connected to the N cables individually.

In some cases, the M first vibration motors are simultaneously electrically connected by one cable, and the N second vibration motors can be electrically connected to each of the N cables individually.

As another example, the M first vibration motors may be electrically connected to each other by M cables, and the N second vibration motors may be simultaneously electrically connected by one cable.

As another example, the M first vibration motors and the N second vibration motors can be simultaneously electrically connected by a single cable.

As another example, it may further comprise at least one cable for electrically connecting the M first vibration motors to the N second vibration motors, and a steering roll connector connected to the cable to prevent twisting of the cable have.

The light emitting portion 500 may be mounted on the steering wheel 400, but is not limited thereto.

For example, the light emitting unit 500 may replace a lamp in a vehicle, such as a room lamp.

Here, the light emitting unit 500 may include various light emitting devices such as light emitting diodes. The light emitting unit 500 may emit light in various patterns using a light color, an optical intensity, a light emission period, .

That is, the light emitting portion 500 can emit light with a predetermined light emission pattern depending on the direction and kind of the hazardous element.

The light emitting units 500 may be arranged in pairs together with the vibration unit 300, or may be arranged in different modules.

In some cases, the light emitting portion 500 may be omitted.

Here, the light emitting unit 500 may include a plurality of light emitting devices arranged at regular intervals, like the vibrating unit 300.

Next, the number of the light emitting elements and the connection state are the same as those of the vibration motors of the vibration unit 300 described above, and thus the detailed description thereof will be omitted.

As another example, the speaker unit 600 may also be mounted on the steering wheel 400, but is not limited thereto.

Here, the speaker unit 600 may replace a speaker in the vehicle. The speaker unit 600 may provide sounds of various patterns using sound intensity, sound type, sound cycle, or the like in accordance with a control signal of the danger warning control unit 200 .

That is, the speaker unit 600 can generate sound in a predetermined acoustic pattern, depending on the direction and type of the dangerous element.

The sensor unit 100 may include a plurality of sensors for sensing the driving environment of the vehicle.

Here, the sensor unit 100 may include, but is not limited to, a vehicle speed sensor, a gear shift sensor, a steering angle sensor, a multi-function switch, a side and rear ultrasonic sensor, and a vision sensor.

Next, the danger warning control unit 200 analyzes the driving environment of the vehicle and the driver's driving information from the sensing signal of the sensor unit 100, identifies the risk factors, determines the vibration pattern according to the risk factors, Accordingly, the vibration unit 300 can be driven.

In addition, the danger warning control unit 200 can individually drive the vibration motor disposed in the direction of the hazardous element in the determined vibration pattern, and warn the direction and kind of the hazardous element by vibration.

The danger warning control unit 200 analyzes the driving environment of the vehicle and the driver's driving information from the sensing signal of the sensor unit 100 to identify the dangerous element, determine the emission pattern according to the dangerous element, Depending on the pattern, the light emitting portion 500 may be driven.

Further, the danger warning control unit 200 can individually drive the light emitting elements arranged in the direction of the hazardous element with the determined emission pattern, and warn the directions and kinds of the hazardous elements with light emission.

As another example, the danger warning control unit 200 analyzes the driving environment of the vehicle and the driving information of the driver from the sensing signal of the sensor unit 100, identifies the risk factors, determines the acoustic pattern according to the risk factors, Depending on the acoustic pattern, the speaker unit 600 may be driven.

As another example, the danger warning control unit 200 analyzes the driving environment of the vehicle and the driver's driving information from the sensing signal of the sensor unit 100 to identify the dangerous elements, and detects vibration patterns, At least one of the acoustic patterns and determines at least one of the vibration unit 300, the light emitting unit 500, and the speaker unit 600 according to at least one of the determined vibration pattern, light emission pattern, Any one of them can be driven.

Next, when controlling the vibration motor of the vibration unit 300, the danger warning control unit 200 uses at least any one of the vibration intensity, the vibration cycle, the number of vibrations, and the vibration amplitude of the vibration motor , The vibration pattern can be determined.

Here, the vibration pattern may include at least one of a first pattern of a risk perception, a second pattern of a risk class, and a third pattern of a dangerous direction, and the first and second , And the third pattern may be repeated sequentially or non-sequentially.

In some cases, the vibration pattern may include a gradient pattern in which the vibration intensity of the vibration motor becomes gradually larger or smaller.

Then, the danger warning control unit 200 may vibrate the plurality of vibration motors and make the vibration intensity of the vibration motor disposed in the direction of the dangerous element larger than the vibration intensity of the other vibration motors.

Then, the danger warning control unit 200 calculates the angle at which one vibration motor covers the dangerous element according to the following equation (1), and calculates the position of the vibration motor to be driven according to the direction of the dangerous element .

Equation 1

(360 degrees / N) = K (where N is the number of vibration motors, K is an angular range in which one vibration motor covers the dangerous element)

Equation 2

(360 degrees - B + Z) / 360 = C where B is the current rotation angle of the steering wheel, Z is the direction angle of the hazardous element, C is the position of the vibration motor to be driven,

In some cases, the danger warning control unit 200 may be, for example, a control unit of a multi-function switch.

At this time, the information transmitting means may be a steering role connector (SRC), and the steering roll connector may have a limit on the number of lines.

Here, the reason why the control unit of the multi-function switch is used as the danger warning control unit 200 is that the multi-function switch is essentially required for all the vehicles and is close to the steering roll connector that supplies power to the vibration motor.

As another example, the danger warning control unit 200 may be, for example, a haptic module or another motor controller (MCU).

As described above, according to the present invention, a plurality of vibration motors, a light emitting element, and a speaker are disposed on a steering wheel, and a vibration motor, a light emitting element, and a speaker, The driver can be notified of the type and direction of the danger through the tactile sense, auditory sense, and sight of the driver by warning the direction and kind of the dangerous element with vibration, light emission, and sound to provide a safe driver environment.

As described above, according to the present invention, the kind and direction of the danger are transmitted to the driver through the vibration of the steering wheel, and the steering wheel, which is in constant contact with the driver, is given any differentiated vibration, And the type, so that the risk faced can be met.

In addition, the present invention additionally provides a driver with a differentiated light pattern or sound pattern, in addition to vibration, through light, visually or through sound, audibly, so that the driver can intuitively control the dangerous position and / By being able to recognize the kind, it is possible to cope with the danger faced.

FIG. 2 is a block diagram showing the danger warning control unit of FIG. 1. FIG.

2, the danger warning control unit 200 includes an integrity verification unit 210, a hazard identification unit 220, a hazard analysis unit 230, a vibration pattern determination unit 240, And a control unit 260. The control unit 260 may be a microprocessor.

Here, the integrity verification unit 210 may collect the driving environment of the vehicle and the driver driving related information from the sensing signal of the sensor unit, and confirm the integrity of the collected information.

At this time, the traveling environment information of the vehicle may be various kinds of sensor information such as a vehicle speed, traveling information, a radar, an ultrasonic wave, a vision sensor, a vehicle diagnostic message, and the like.

The driver driving related information may be, for example, driving direction information of the vehicle through a SAS (Semi Active Suspension) and a gear position as information related to the driving intention of the driver, Information, and the like.

Then, the integrity check of the collected information can extract only the correct information by detecting the error information through a cross check of the collected information.

Next, the risk factor verifying unit 220 can identify the risk factors by analyzing the driving environment of the vehicle and the driver driving related information based on the confirmed integrity information.

Here, the traveling environment analysis of the vehicle analyzes the traveling environment through the vehicle state information, and the analysis of the driving information related to the driver can analyze the intention of the driver through the information related to the driver traveling intention.

For example, the driver's intention to determine the forward and backward directions through the gearshift sensor can be grasped, and the driver's intention to determine the left and right roads can be grasped through the multi-function switch. It is possible to grasp the expected circulation line of the vehicle through.

The risk factor can be identified based on the results of the analysis of the driving environment of the vehicle and the intention of driving the driver.

For example, through the side and rear ultrasonic sensor and the vision sensor, it can be confirmed whether there is a risk factor on the traffic line of the vehicle, and the range of the obstacle which can affect the vehicle can be limited.

Next, the risk analysis unit 230 may analyze the types and directions of the identified risk factors.

For example, the type of the risk element may be, but is not limited to, a risk of collision with an obstacle, or a risk of an abnormal occurrence of a critical system.

The direction of the risk element may be the direction in which the obstacle is located if the type of the risk element is the risk of impulse with the obstacle, the direction in which the system is located if the risk element is a failure of the important system, and the like.

Then, the vibration pattern determining unit 240 can determine a vibration pattern according to the type of the analyzed hazardous element.

Here, the vibration pattern determining unit 240 can determine the vibration pattern by using at least one of the vibration intensity, the vibration period, the number of vibrations, and the vibration amplitude of the vibration motor depending on the dangerous factor.

For example, the vibration pattern may include at least one of a first pattern of the risk perception, a second pattern of the risk category, and a third pattern of the risk direction, and the first and second , And the third pattern may be repeated sequentially or non-sequentially.

As another example, the vibration pattern may include a gradient pattern in which the vibration intensity of the vibration motor becomes gradually larger or smaller.

Then, the vibration motor determination unit 250 calculates the position of the vibration motor according to the direction of the analyzed hazardous element, and determines the vibration motor to be driven according to the calculated position of the vibration motor.

Here, the vibration motor determining unit 250 can calculate the angle at which one vibration motor covers the dangerous element by using the equation (1).

Equation 1

(360 degrees / N) = K (where N is the number of vibration motors, K is an angular range in which one vibration motor covers the dangerous element)

The vibration motor determining unit 250 can calculate the position of the vibration motor to be driven according to the direction of the dangerous element by using the equation (2).

Equation 2

(360 degrees - B + Z) / 360 = C where B is the current rotation angle of the steering wheel, Z is the direction angle of the hazardous element, C is the position of the vibration motor to be driven,

Next, the control unit 260 controls the integrity checking unit 210, the risk factor checking unit 220, the risk factor analyzing unit 230, the vibration pattern determining unit 240, and the vibration motor determining unit 250 have.

Further, in addition, the danger warning control unit 200 may further include a light emission pattern determination unit and a light emission device control unit. These control methods may be the same as those of the vibration pattern determination unit 240 and the vibration motor determination unit 250 Therefore, detailed description may be omitted.

3 and 4 are views showing control of the vibration motor according to the dangerous direction.

3 and 4, in the steering wheel 400, a plurality of vibration motors 310 may be disposed at regular intervals.

Here, the danger warning control unit can inform the driver of the danger by vibrating the vibration motor 310 located in the dangerous direction among the plurality of vibration motors 310.

Therefore, when the driving of the corresponding vibration motor 310 is controlled in accordance with the dangerous direction, the danger warning control unit checks the rotational direction of the steering wheel, and takes into consideration the actual dangerous direction and the rotational angle of the current steering wheel, The position of the vibration motor to be driven according to the direction of the element can be accurately calculated.

That is, the danger warning control unit can check the direction of the dangerous element, check the current direction of the steering wheel, and calculate the position of the vibration motor to be driven according to the direction of the dangerous element.

The danger warning control unit can calculate the angular range in which one vibration motor can cover the dangerous element by Equation (1).

Equation 1

(360 degrees / N) = K

Here, N is the number of vibration motors, and K is an angular range in which one vibration motor covers a dangerous element.

For example, as shown in Fig. 3, if the number N of the vibration motors is 6, the angular range K of the first vibration motor 310 may be 330 degrees to 30 degrees (in 60 degree increments).

In this case, the position of the No. 1 vibration motor 310 is 0 degrees (at 12 o'clock), the value of 360 * J (positive integer) is added to the current angle output, The current rotational angle B of the steering wheel 400 can be obtained by using a formula of MOD (A '/ 360) and B = MOD (A' / 360).

Here, the range of B is 0? B? 360, and B is a value obtained by expressing the angle of the 12 o'clock direction within 360 degrees when the steering wheel rotates.

4, the rest of A '/ 360 is equal to the angle value of the steering wheel 400, and the current rotational angle B of the steering wheel 400 can be expressed as B = MOD (A' / 360) .

Then, the danger warning control unit can calculate the position of the vibration motor to be driven according to the direction of the dangerous element by using the equation (2).

Equation 2

(360 degrees - B + Z) / 360 = C

Where B is the current rotational angle of the steering wheel, Z is the direction angle of the hazard, and C is the position of the vibration motor to be driven.

For example, if the direction of danger is Z in the traveling direction of the vehicle, the vibration motor to be actually controlled can be found by the formula (360 degrees - B + Z) / 360 = C.

Here, the value of C is the angle covered by the vibration motor to be controlled, taking both the rotation of the steering wheel 400 and the dangerous direction into account.

Therefore, the vibration motor that covers an angle including C is a vibration motor to be controlled.

In this way, when the driving of the corresponding vibration motor 310 is controlled in accordance with the dangerous direction, the danger warning control unit controls the operation of the vibration motor 310 according to the direction of the dangerous element by considering the actual dangerous direction and the rotation angle of the current steering wheel 400 It is possible to accurately calculate the position of the vibration motor to be driven and to control the driving of the vibration motor.

Further, the light emitting element of the light emitting portion can also be controlled in the same manner as the vibration motor of the vibrating portion, and therefore, detailed description thereof will be omitted.

FIGS. 5 to 7 are views showing operational examples of a steering wheel system for transmitting a dangerous situation to a driver.

As shown in Fig. 5, when the right yellow light is turned on by using the multifunctional switch of the vehicle so that the driver makes a right turn, the steering wheel system receives the sensed signal from the multifunction switch and various sensors of the vehicle So that the driving environment of the vehicle and the information related to the driving of the driver can be collected.

The steering wheel system can then determine the presence of obstacles on the right side of the vehicle by analyzing the type and direction of the hazard.

Therefore, the steering wheel system can determine the vibration pattern to be driven according to the position of the vibration motor, by determining the vibration pattern according to the kind of the dangerous element, calculating the position of the vibration motor according to the direction of the dangerous element .

That is, the steering wheel system judges that there is an obstacle in the right side 5 o'clock direction of the vehicle, and vibrates No. 3 vibration motor and No. 4 vibration motor of the steering wheel 400, Element can be conveyed.

In some cases, when the light emitting element is provided with the vibration motor in the steering wheel 400, the light emitting element can emit light together with the vibration motor.

6, when the driver moves backward in the left direction or the right direction, the steering wheel system receives signals to be sensed from the multifunction switch and various sensors of the vehicle, You can collect relevant information.

Here, the steering wheel system collects the angle, vehicle speed, and direction information of the steering wheel 400 when the vehicle is moving backward to the left, so that the obstacle 30 located on the rear right side corresponds to a risk factor By not judging it, it is possible not to convey the risk to the driver.

However, the steering wheel system collects the angle, the vehicle speed, and the direction information of the steering wheel 400 when the vehicle is backward in the right direction, and the obstacle 30 located at the rear right corresponds to the vehicle's dangerous element By judging that there is an obstacle in the right side 5 o'clock direction of the vehicle and by vibrating the No. 3 vibration motor and the No. 4 vibration motor of the steering wheel 400, .

In some cases, when the light emitting element is provided with the vibration motor in the steering wheel 400, the light emitting element can emit light together with the vibration motor.

7, when the driver advances leftward or rightward, the steering wheel system receives a signal to be sensed from the multifunctional switch and various sensors of the vehicle, and controls the driving environment of the vehicle and the driving of the driver You can collect relevant information.

Here, the steering wheel system collects the angle, the vehicle speed, and the direction information of the steering wheel 400 when the vehicle advances to the left direction, and the obstacle 30 located on the front right side corresponds to the risk of the vehicle By not judging it, it is possible not to convey the risk to the driver.

However, the steering wheel system collects the angle, vehicle speed, and direction information of the steering wheel 400 when the vehicle advances to the right, so that the obstacle 30 located on the front right corresponds to the vehicle's risk of harm By judging that there is an obstacle in the right side 1 o'clock position of the vehicle and by vibrating the No. 1 vibration motor and the No. 2 vibration motor of the steering wheel 400, .

In some cases, when the light emitting element is provided with the vibration motor in the steering wheel 400, the light emitting element can emit light together with the vibration motor.

Figs. 8A to 8B, Figs. 9A to 9E, 10A to 10E and 11 are graphs showing embodiments of a vibration pattern according to a steering wheel system.

As shown in FIGS. 8A to 8B, the steering wheel system can determine the vibration pattern according to the type of the analyzed risk factors.

Here, the vibration pattern can be determined differently depending on the vehicle speed and traveling environment, such as the vibration intensity, the vibration period, the number of vibrations, and the vibration amplitude of the vibration motor.

For example, the driver may feel the vibration of the same intensity depending on the traveling environment such as the speed of the vehicle and the road surface state of an expressway, unpaved road, uphill, downhill, curve and the like.

Therefore, by differentiating the vibration intensity, the vibration period, the vibration frequency, the vibration amplitude, etc. of the vibration motor according to the vehicle speed and the traveling environment, the driver can help to recognize the danger through vibration.

For example, as shown in FIG. 8A, the vibration pattern may have a large vibration intensity, and the number of vibration may be repeated, depending on the vehicle speed.

Further, as shown in Fig. 8B, the vibration pattern may have a large vibration amplitude and intensity, and the number of vibrations may be repeated, depending on the vehicle speed.

As shown in FIGS. 9A to 9E, the steering wheel system can differentiate the amplitude, the cycle, and the repetition frequency of the vibration so as to recognize the type of danger and the dangerous direction.

For example, as shown in FIG. 9A, the steering wheel system may set the vibration pattern to have the same amplitude, cycle, and number of repetitions of the vibration, but the vibration pattern may be set differently The vibration pattern for the danger recognition and the vibration pattern for the danger type and direction may be different.

Here, the vibration pattern for the danger recognition and the vibration pattern for the danger type and the direction can be set so that the vibration intensity is the same and the vibration amplitude is different.

As shown in FIG. 9B, the vibration pattern can be set to be different in amplitude, cycle, and repetition frequency of the vibration, and the vibration pattern for the danger recognition and the vibration pattern for the hazard type and direction may be different.

Here, the vibration pattern for the danger recognition and the vibration pattern for the danger type and the direction can be set so that the vibration intensity is the same and the vibration amplitude is different.

That is, FIG. 9B shows that the vibration pattern may have a two-step vibration pattern such as a first pattern of dangerousness and a second pattern of dangerousness and direction.

In some cases, as shown in FIG. 9C, the vibration pattern may have a three-step vibration pattern, such as a first pattern of dangerousness, a second pattern of dangerous types, and a third pattern of dangerous directions.

In another case, the vibration pattern may include at least one of a first pattern for identifying a risk, a second pattern for a risk category, and a third pattern for a risk direction, and the first and second , And the third pattern may be repeated sequentially or non-sequentially.

Next, as shown in FIG. 9D, the vibration pattern includes a first pattern of dangerousness and a second pattern of risk types and directions, wherein the first two patterns and the second one pattern are repeatedly performed .

As shown in FIG. 9E, the vibration pattern includes a first pattern of a dangerous perception and a second pattern of a dangerous direction, wherein one first pattern and one second pattern may be repeatedly performed have.

Also, as shown in Figs. 10A to 10E, the steering wheel system may set the vibration pattern such that the intensity of vibration is gradually increased or gradually decreased.

That is, the vibration pattern may include a gradient pattern in which the vibration intensity of the vibration motor becomes gradually larger or smaller.

Accordingly, the vibration pattern can be variously differentiated through combination and repetition of gradient patterns in which the vibration intensity of the vibration motor becomes gradually larger or smaller.

For example, as shown in FIG. 10A, the gradient pattern in which the vibration intensity of the vibration motor is gradually decreased may be repeated twice, or the gradient pattern in which the vibration intensity of the vibration motor is gradually increased as shown in FIG. 10B may be repeated twice .

As shown in FIG. 10C, the pattern having the same vibration intensity and amplitude may be repeated twice, and then the gradient pattern in which the vibration intensity of the vibration motor gradually decreases may be repeated three times. As shown in FIG. 10D, It is also possible to repeat the gradient pattern having the gradually increasing intensity twice and then repeat the pattern having the same vibration intensity and amplitude several times.

Here, the gradient pattern repeating twice may represent danger, and the same patterns repeated several times may express danger direction.

Then, as shown in FIG. 10E, the vibration pattern may be continuously repeated, in which the vibration intensity of the vibration motor gradually increases and gradually becomes smaller.

11, the danger warning control unit vibrates all the vibration motors 310 mounted on the steering wheel 400 and adjusts the vibration intensity of the vibration motor 310 disposed in the direction of the dangerous element, It is also possible to set a vibration pattern that is larger than the vibration intensity of the other vibration motors 310. [

That is, the vibration of the vibration motor 310 located in the direction in which the danger is judged is strengthened, and the vibration of the remaining portion of the vibration motor 310 is made relatively weak, so that the driver can recognize the dangerous direction .

For example, as shown in FIG. 11, three vibration motors closest to the dangerous direction can be strongly vibrated, and the remaining vibration motors can be vibrated relatively weakly than the vibration of the three vibration motors.

Therefore, the present invention transmits the differentiated vibration to the entire steering wheel, thereby enabling the driver to recognize the dangerous direction.

In some cases, it is possible to notify the driver of the kind of danger and the direction through the light emission pattern such as the color change of the light emitting element together with the vibration of the vibration motor.

Here, the light emission pattern of the light emitting element is the same as the vibration pattern setting of the vibration motor described above, and thus a detailed description thereof will be omitted.

Fig. 12 is an exploded view of a steering wheel on which a vibration motor is mounted, and Fig. 13 is an exploded view of a vibration motor.

12, the steering wheel includes a steering wheel fixing body 410, a steering wheel cover 420, an airbag 430, a wheel fixing screw 440, and first and second vibration motors 311 , 312).

Here, the M first vibration motors 311 are disposed at the handle portion of the steering wheel fixing body 410, and the N second vibration motors 312 are disposed at the center portion of the steering wheel fixing body 410 .

For example, the number of the first vibration motors 311 may be larger than the number of the second vibration motors 312.

However, as the case may be, the number of the first vibration motors 311 may be smaller than the number of the second vibration motors 312, and as another example, the number of the first vibration motors 311 may be smaller than the number of the first vibration motors 311, The number of the vibration motors 312 may be equal to each other.

In addition, a plurality of seating grooves through which the first vibration motors 311 can be placed can be disposed on the handle portion of the steering wheel fixing body 410.

In some cases, a plurality of seating grooves into which the second vibration motors 312 can be placed may be disposed in the central portion of the steering wheel fixing body 410, but in other cases, the seating grooves may be omitted.

13, the vibration unit 310 including the first and second vibration motors 311 and 312 includes a motor 315 mounted on the steering wheel 400, a motor 315 mounted on the steering wheel 400, A weight 316 disposed thereon and a motor cover 317 covering the weight 316 and the motor 315. [

Here, the first fastening holes may be disposed on both sides of the motor 315, and the second fastening holes may be disposed on both sides of the motor cover 317 so as to correspond to the first fastening holes.

At this time, the motor 315 and the motor cover 317 can be fixed by the fastening screws 318 fastened to the steering wheel 400 through the first and second fastening holes.

FIG. 14 is a view showing an arrangement of a vibration motor mounted on a steering wheel, and FIG. 15 is a view showing an interval of vibration motors.

As shown in Fig. 14, only the M first vibration motors 311 disposed in the handle portion of the steering wheel can be disposed in the vibrating portion.

In some cases, only the N second vibration motors 312 disposed at the center portion of the steering wheel may be disposed in the vibrating portion.

In other cases, the vibrating portion may be arranged with M first vibration motors 311 disposed at the handle portion of the steering wheel and N second vibration motors 312 disposed at the center portion of the steering wheel.

Here, the number of the first vibration motors 311 may be larger than the number of the second vibration motors 312.

However, in some cases, the number of the first vibration motors 311 may be smaller than the number of the second vibration motors 312.

As another example, the number of the first vibration motors 311 and the number of the second vibration motors 312 may be equal to each other.

As shown in Fig. 15, the first vibration motors 311 may be arranged at equal intervals from each other.

The second vibration motors 312 may also be arranged at equal intervals.

In some cases, the interval between the first vibration motors 311 and the interval between the second vibration motors 312 may be different from each other.

However, in other cases, the interval between the first vibration motors 311 and the interval between the second vibration motors 312 may be equal to each other.

Thus, the reason why the vibration motors are arranged at regular intervals is that the magnitude of vibration can be equally transmitted to each part.

Further, when the vibration motors are arranged at equal intervals, the vibration can be controlled at equal intervals, and therefore, the control is easy.

For example, when the vibration motors are arranged at regular intervals, it is easy to control the magnitude of the vibration and the vibration time based on the rotation angle of the steering wheel.

Further, if the vibration motors are arranged at regular intervals, the assembler can easily know the position where the vibration motor is assembled, and the efficiency of assembling can be increased.

In addition, the N second vibration motors 312 disposed at the center of the steering wheel may be sub motors. When the magnitude of vibration is increased or various peeling is applied separately, To create multiple vibratory peels.

16 is a view showing a cable connecting the vibration motor.

16, M first vibration motors 311 and N second vibration motors 312 are mounted on the steering wheel, and M first vibration motors 311 and N The second vibration motors 312 may be electrically connected to the cable 320 and the cable 320 may be connected to the steering roll connector 330 to prevent twisting of the cable 320.

Here, the M first vibration motors 311 may be electrically connected to the M cables 320 individually, and the N second vibration motors 312 may be arranged such that the N cables 320 are respectively electrically Can be connected.

In some cases, the M first vibration motors 311 are simultaneously electrically connected by one cable 320, and the N second vibration motors 312 are connected to the N cables 320 individually Can be electrically connected.

In other cases, the M first vibration motors 311 are electrically connected to the M cables 320 individually, and the N second vibration motors 312 are simultaneously connected by one cable 320 at the same time Can be electrically connected.

As another example, the M first vibration motors 311 and the N second vibration motors 312 can be electrically connected at the same time by a single cable 320.

As another example, the M first vibration motors 311 and the N second vibration motors 312 may be electrically connected to at least one cable 320, and at least one cable 320 And a steering roll connector 330 that prevents the cable 320 from twisting.

Thus, when supplying power to the vibration motor mounted on the steering wheel, the number of cables 320 to be controlled, respectively, depends on the number of cables 320 that the steering roll connector 330 can support.

It is therefore desirable to minimize the number of vibration motors that must be independently controlled.

As an example, due to independent control, the number of cables required can be from at least one to at most N + M.

Thus, when the cable 320 is connected through the steering roll connector 330, the cables 320 are not twisted with each other even when the steering wheel rotates, so that the vibration motors can be accurately controlled.

17 is a flowchart illustrating a driver's risk warning method using the steering wheel system according to the present invention.

17, the steering wheel system can collect the driving environment of the vehicle and the driver driving related information from the sensing signal of the sensor (S10)

At this time, the traveling environment information of the vehicle may be various kinds of sensor information such as a vehicle speed, traveling information, a radar, an ultrasonic wave, a vision sensor, a vehicle diagnostic message, and the like.

The driver driving related information may be, for example, driving direction information of the vehicle through a SAS (Semi Active Suspension) and a gear position as information related to the driving intention of the driver, Information, and the like.

Next, the steering wheel system can confirm the integrity of the collected information (S20)

Here, the integrity check of the collected information can extract only the correct information by detecting the error information through a cross check of the collected information.

Then, the steering wheel system analyzes the driving environment of the vehicle and the driver driving related information based on the confirmed integrity information (S30)

Here, the traveling environment analysis of the vehicle analyzes the traveling environment through the vehicle state information, and the analysis of the driving information related to the driver can analyze the intention of the driver through the information related to the driver traveling intention.

For example, the driver's intention to determine the forward and backward directions through the gearshift sensor can be grasped, and the driver's intention to determine the left and right roads can be grasped through the multi-function switch. It is possible to grasp the expected circulation line of the vehicle through.

Then, the steering wheel system can identify the risk factor based on the analysis (S40)

Here, the risk factor can be identified based on the results of the analysis of the driving environment and the driving intention of the vehicle.

For example, through the side and rear ultrasonic sensor and the vision sensor, it can be confirmed whether there is a risk factor on the traffic line of the vehicle, and the range of the obstacle which can affect the vehicle can be limited.

Next, the steering wheel system can analyze the type and direction of the identified risk factors (S50)

For example, the type of the risk element may be, but is not limited to, a risk of collision with an obstacle, or a risk of an abnormal occurrence of a critical system.

The direction of the risk element may be the direction in which the obstacle is located if the type of the risk element is a risk of collision with the obstacle, the direction in which the system is located if the risk element is a failure of the critical system, and the like.

Then, the steering wheel system determines a vibration pattern according to the type of the analyzed risk element, calculates the position of the vibration motor according to the direction of the analyzed risk element, The motor can be determined (S60)

Here, the steering wheel system can determine the vibration pattern by using at least one of the vibration intensity, the vibration period, the number of vibrations, and the vibration amplitude of the vibration motor depending on the dangerous element.

For example, the vibration pattern may include at least one of a first pattern of the risk perception, a second pattern of the risk category, and a third pattern of the risk direction, and the first and second , And the third pattern may be repeated sequentially or non-sequentially.

As another example, the vibration pattern may include a gradient pattern in which the vibration intensity of the vibration motor becomes gradually larger or smaller.

Further, the steering wheel system can calculate the position of the vibration motor in accordance with the direction of the analyzed dangerous element, and determine the vibration motor to be driven according to the calculated position of the vibration motor.

Here, the steering wheel system can calculate the angle at which one vibration motor covers a dangerous element, according to Equation (1).

Equation 1

(360 degrees / N) = K (where N is the number of vibration motors, K is an angular range in which one vibration motor covers the dangerous element)

Then, the steering wheel system can calculate the position of the vibration motor to be driven according to the direction of the dangerous element by using the equation (2).

Equation 2

(360 degrees - B + Z) / 360 = C where B is the current rotation angle of the steering wheel, Z is the direction angle of the hazardous element, C is the position of the vibration motor to be driven,

Then, the steering wheel system can individually drive the vibration motor arranged in the direction of the dangerous element with the determined vibration pattern, and warn the direction and kind of the dangerous element by vibration. (S70)

As described above, according to the present invention, a plurality of vibration motors, a light emitting element, and a speaker are disposed on a steering wheel, and a vibration motor, a light emitting element, and a speaker, The driver can be notified of the type and direction of the danger through the tactile sense, auditory sense, and sight of the driver by warning the direction and kind of the dangerous element with vibration, light emission, and sound to provide a safe driver environment.

As described above, according to the present invention, the kind and direction of the danger are transmitted to the driver through the vibration of the steering wheel, and the steering wheel, which is in constant contact with the driver, is given any differentiated vibration, And the type, so that the risk faced can be met.

In addition, the present invention additionally provides a driver with a differentiated light pattern or sound pattern, in addition to vibration, through light, visually or through sound, audibly, so that the driver can intuitively control the dangerous position and / By being able to recognize the kind, it is possible to cope with the danger faced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

100: sensor unit 200: danger warning control unit
300: Vibration unit 400: Steering wheel
500: light emitting unit 600: speaker unit

Claims (22)

A steering wheel for controlling a running direction of the vehicle;
A vibration unit mounted on the steering wheel, the vibration unit vibrating the steering wheel;
A sensor unit for sensing a traveling environment of the vehicle; And,
A danger warning control unit for analyzing the driving environment of the vehicle and the driver's driving information from the sensing signal of the sensor unit to identify a dangerous element, determining a vibration pattern according to the dangerous element, and driving the vibration unit according to the determined vibration pattern Including,
Wherein the vibrating portion includes a plurality of vibration motors,
The danger warning control unit,
Wherein the vibration motor disposed in the direction of the risk element is driven separately in a vibration pattern determined according to the type of the risk element, and the direction and the type of the risk element are warned by the vibration. The vibrator according to claim 1,
M first vibration motors disposed on the handle of the steering wheel;
And N second vibration motors disposed at a central portion of the steering wheel. 3. The steering wheel system according to claim 2, wherein the number of the first vibration motors is greater than the number of the second vibration motors. 3. The steering wheel system according to claim 2, wherein the first vibration motors are arranged at equal intervals from each other. 3. The steering wheel system according to claim 2, wherein the second vibration motors are arranged at equal intervals from each other. 3. The steering wheel system according to claim 2, wherein the interval between the first vibration motors and the interval between the second vibration motors are different from each other. 3. The apparatus according to claim 2, wherein the M first vibration motors are arranged such that M cables are individually electrically connected,
Wherein the N second vibration motors are electrically connected to each other by N cables. 3. The motor according to claim 2, wherein the M first vibration motors are simultaneously electrically connected by a single cable,
Wherein the N second vibration motors are electrically connected to each other by N cables. 3. The apparatus according to claim 2, wherein the M first vibration motors are arranged such that M cables are individually electrically connected,
Wherein the N second vibration motors are simultaneously electrically connected by a single cable. 3. The steering wheel system according to claim 2, wherein the M first vibration motors and the N second vibration motors are simultaneously electrically connected by a single cable. The motorcycle according to claim 2, further comprising: at least one cable for electrically connecting the M first vibration motors, the N second vibration motors,
Further comprising a steering wheel connector coupled to the cable to prevent twisting of the cable. The vibration motor according to claim 2,
A motor mounted on the steering wheel;
A weight disposed on the motor; And,
And a motor cover covering the weight and the motor. 13. The motor according to claim 12, wherein the motor is provided with first fastening holes on both sides thereof,
Wherein the motor cover has second fastening holes on both sides so as to correspond to the first fastening holes,
Wherein the motor and the motor cover are fixed by a fastening screw fastened to the steering wheel through the first and second fastening holes. The risk warning system of claim 1,
An integrity checking unit for collecting information on a driving environment of the vehicle and driver driving information from a sensing signal of the sensor unit and confirming the integrity of the collected information;
A risk factor checking unit for analyzing the driving environment of the vehicle and the driver driving related information based on the identified integrity information to identify the risk factor;
A risk analysis unit for analyzing the types and directions of the identified risk factors;
A vibration pattern determiner for determining a vibration pattern according to the type of the analyzed dangerous element;
A vibration motor determination unit for calculating a position of the vibration motor according to a direction of the analyzed dangerous component and determining a vibration motor to be driven according to the calculated position of the vibration motor; And,
And a controller for controlling the integrity checking unit, the risk factor checking unit, the risk analysis unit, the vibration pattern determining unit, and the vibration motor determining unit. The risk warning system of claim 1,
Wherein the vibration pattern is determined using at least one of a vibration intensity, a vibration cycle, a vibration frequency, and a vibration amplitude of the vibration motor according to the risk factor. 2. The method according to claim 1,
A second pattern for a risk category, and a third pattern for a risk category,
Wherein the first, second, and third patterns are repeated in a sequential or non-sequential manner according to the risk factor. 2. The method according to claim 1,
Wherein the vibration motor includes a gradient pattern in which the vibration intensity of the vibration motor gradually increases or decreases. The risk warning system of claim 1,
Vibrating the plurality of vibration motors,
Wherein the vibration intensity of the vibration motor disposed in the direction of the dangerous element is made larger than the vibration intensity of the other vibration motors. The risk warning system of claim 1,
The following equation (1) calculates the angle at which the one vibration motor covers the dangerous element,
Wherein the position of the vibration motor to be driven is calculated according to the following equation (2).
Equation 1
(360 degrees / N) = K (where N is the number of vibration motors, K is an angular range in which one vibration motor covers the dangerous element)
Equation 2
(360 degrees - B + Z) / 360 = C where B is the current rotation angle of the steering wheel, Z is the direction angle of the hazardous element, C is the position of the vibration motor to be driven, The steering wheel system according to claim 1, further comprising a light emitting unit mounted on the steering wheel and emitting light in a predetermined light emission pattern according to a direction and a type of the dangerous element. The steering wheel system according to claim 1, further comprising a speaker unit mounted on the steering wheel and generating sound in a predetermined acoustic pattern according to a direction and a type of the dangerous element. A driver's risk warning method using a steering wheel system including a vibration motor mounted on a steering wheel and a sensor for detecting a driving environment of the vehicle,
Collecting the driving environment of the vehicle and the driver driving related information from the sensing signal of the sensor;
Confirming the integrity of the collected information;
Analyzing the driving environment of the vehicle and the driver driving related information based on the identified integrity information;
Identifying a risk factor based on the analysis;
Analyzing the types and directions of the identified risk factors;
Determining a vibration pattern according to the type of the analyzed risk element, calculating a position of the vibration motor according to the analyzed direction of the risk element, and determining a vibration motor to be driven according to the calculated position of the vibration motor step; And,
And driving the vibration motor disposed in the direction of the danger element in the determined vibration pattern to warn the direction and the type of the dangerous element by vibration. Way.

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