KR20110122347A - Bumper of integrated speaker and method for controling the same - Google Patents

Bumper of integrated speaker and method for controling the same Download PDF

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Publication number
KR20110122347A
KR20110122347A KR1020100041788A KR20100041788A KR20110122347A KR 20110122347 A KR20110122347 A KR 20110122347A KR 1020100041788 A KR1020100041788 A KR 1020100041788A KR 20100041788 A KR20100041788 A KR 20100041788A KR 20110122347 A KR20110122347 A KR 20110122347A
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KR
South Korea
Prior art keywords
sound source
vehicle
sound
speaker
output
Prior art date
Application number
KR1020100041788A
Other languages
Korean (ko)
Inventor
박재홍
Original Assignee
주식회사 와이즈오토모티브
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 주식회사 와이즈오토모티브 filed Critical 주식회사 와이즈오토모티브
Priority to KR1020100041788A priority Critical patent/KR20110122347A/en
Publication of KR20110122347A publication Critical patent/KR20110122347A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/303—Speed sensors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The present invention relates to a speaker integrated bumper and a control method thereof to ensure that the pedestrian protection sound is output from the hybrid vehicle or the electric vehicle to ensure the safety of the pedestrian. To this end, the present invention is a bumper assembly installed on the vehicle; And a sound source output unit installed in the bumper assembly and detecting speed information of the vehicle and controlling a preset sound source to be output to the outside of the vehicle according to the speed information. Therefore, the present invention has the advantage that the pedestrian can quickly check the approach of the vehicle by outputting a virtual engine sound from the front bumper or rear bumper closest to the pedestrian while the vehicle is driving.

Description

Speaker integrated bumper and its control method {BUMPER OF INTEGRATED SPEAKER AND METHOD FOR CONTROLING THE SAME}

The present invention relates to a speaker-integrated bumper, and more particularly, to a speaker-integrated bumper and a control method thereof to ensure that the pedestrian protection sound is output from a hybrid or electric vehicle.

In general, the bumper is mounted on the front and rear of the vehicle body to absorb the impact when the vehicle collides to protect the life and the vehicle.

Conventional bumper system, as shown in Figure 1, the appearance to decorate facia 10, the impact absorbing member 20 is formed of an elastic material such as polypropylene foam or urethane foam to absorb impact energy, It consists of a back beam 30 for supporting the shock absorbing member 20, it is fixed by connecting the back beam 30 to the vehicle body through the stay (40).

The bumper system absorbs some of the impact energy while the shock absorbing member 20 is compressed during a collision of the vehicle, and the remaining shock energy that is not absorbed by the shock absorbing member 20 is gradually stepped into the back beam 30 and the stay. It is dispersed and absorbed in the vehicle body through the 40.

Meanwhile, hybrid vehicles and electric vehicles equipped with electric and internal combustion engines have been developed as environmentally friendly vehicles and have been commercialized recently.

In particular, the hybrid car operates with electricity below a certain speed, and is configured to run using an internal combustion engine when the speed exceeds a certain speed, thereby reducing the emission of pollutants such as smoke, carbon dioxide, etc. together with the electric car, and making noise while driving the vehicle. There is little occurrence and the demand is increasing.

Therefore, a vehicle that runs on electricity, such as a hybrid car and an electric car, does not generate engine sounds like a car using a conventional internal combustion engine, so even visually impaired people and general pedestrians can recognize the hybrid car or an electric car even when the vehicle is approached. There is a problem that a crash does not occur.

In order to solve this problem, an object of the present invention is to provide a speaker integrated bumper to install a speaker in the front and rear bumpers of the vehicle so that the pedestrian can quickly know the approach of the vehicle to hear the virtual engine sound to the pedestrian. It is done.

In addition, an object of the present invention is to provide a sound source output control method of a speaker integrated bumper that can be provided by varying the volume of the virtual engine sound output through the speaker according to the speed of the vehicle.

In order to achieve the above object, the present invention provides a speaker integrated bumper, a bumper assembly installed in a vehicle; And a sound source output unit installed in the bumper assembly and detecting speed information of the vehicle and controlling a preset sound source to be output to the outside of the vehicle according to the speed information.

In addition, the sound source output unit according to the present invention; A speaker accommodated in the sound source output unit case and outputting the sound source; A sound source storage unit storing a sound source to be output to the speaker; And a control unit for detecting the speed information of the vehicle from a TCU and controlling the sound source stored in the sound source storage unit to be output through the speaker according to the information.

In addition, the controller is characterized in that the sound volume of the sound source output through the speaker increases as the speed of the vehicle increases.

The present invention may further include a sensor unit detecting the presence or absence of a pedestrian approaching the vehicle and outputting the detected pedestrian to the controller, wherein the controller is configured to vary the sound volume of the sound source output through the speaker according to whether the pedestrian is detected. Characterized in that.

In addition, the sensor unit is characterized in that integrally installed on the front of the sound source output unit case.

In addition, the sound source stored in the sound source storage unit is characterized in that at least one or more sound sources of the engine sound of the internal combustion engine and a specific sound preset by the user.

In addition, the present invention provides a sound source output control method for a speaker integrated bumper, comprising: (a) detecting a speed information of a vehicle from a TCU by a sound source output unit; (b) setting a volume of sound to be output through the speaker of the sound source output unit according to the speed information detected in the step (a); And (c) outputting a sound source stored in the sound source storage unit of the sound source output unit at the loudness set in the step (b).

In addition, according to the present invention (d) according to whether or not the pedestrian approaching the vehicle is detected whether the sound output unit outputs the sound source at the volume of the sound set in the step (b) or outputs the sound source at a new sound level It characterized in that it further comprises.

The present invention has the advantage that the pedestrian can quickly check the approach of the vehicle by outputting a virtual engine sound from the front bumper or rear bumper closest to the pedestrian while the vehicle is driving.

In addition, the present invention provides a virtual engine sound in the front bumper or the rear bumper closest to the pedestrian while the vehicle is running, so that the pedestrian can be quickly dealt with, and thus there is an advantage of effectively preventing a collision between the pedestrian and the vehicle.

In addition, the present invention has the advantage that the virtual engine sound is provided in the headlamp of the vehicle that is relatively far from the interior of the vehicle can maintain quietness while driving for the driver.

In addition, the present invention has the advantage that can be provided by varying the volume of the virtual engine sound output through the speaker according to the speed of the vehicle.

In addition, the present invention has the advantage that can effectively provide accident prevention by varying the sound volume of the engine sound output through the speaker depending on whether the pedestrian approaches the vehicle.

1 is an exploded perspective view showing a conventional bumper structure for a vehicle.
Figure 2 is an exploded perspective view showing a structure of a speaker integrated bumper according to the present invention.
3 is a block diagram showing the configuration of a speaker integrated bumper according to FIG. 2;
4 is a perspective view of the sound output unit according to FIG. 2;
5 is a cross-sectional view illustrating a configuration of an audio output unit of FIG. 4.
6 is a flowchart illustrating a sound source output process of the speaker integrated bumper according to the present invention;

Hereinafter, exemplary embodiments of a speaker integrated bumper according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an exploded perspective view showing the structure of the speaker integrated bumper according to the present invention, Figure 3 is a block diagram showing the configuration of the speaker integrated bumper according to Figure 2, Figure 4 is a perspective view showing the sound output unit according to Figure 2, 5 is a cross-sectional view illustrating a configuration of an audio output unit of FIG. 4.

As shown in Figures 2 to 5, the speaker integrated bumper assembly 100 according to the present invention is installed on the front and rear of the vehicle to decorate its appearance, the polysia foam, polyurethane foam, etc. A shock absorbing member 120 formed of an elastic material to absorb shock energy, a back beam 130 supporting the shock absorbing member 120, and speed information of the vehicle from the TCU, according to the speed information. And a sound source output unit 140 that controls the preset sound source to be output to the outside of the vehicle.

The fascia 110 has a plurality of through-holes 111 are formed so that the pedestrian detection signal output from the sound source output unit 140 and the predetermined sound source signal is output to the outside of the bumper.

The sound source output unit 140 is installed between the fascia 110 and the shock-absorbing member 120, and the sound source output unit case 141 having a receiving space therein; A speaker 143 accommodated in the sound source output unit case 141 and outputting the preset sound source; A sound source storage unit 144 storing a sound source to be output to the speaker 143; A control unit that detects the current speed information of the vehicle from the transmission control unit (TCU) 150 that controls the transmission of the vehicle and controls the sound source stored in the sound source storage unit 144 to be output through the speaker 143 according to the information. 142; The sensor unit 160 detects the presence or absence of a pedestrian approaching the vehicle and outputs it to the controller 142.

The sound source output unit case 141 has a cylindrical shape in which an empty space is formed so that the control unit 142, the speaker 143, the sound source storage unit 144, the sensor unit 160, and the like can be installed therein. It is absent.

The controller 142 reads the sound source information stored in the sound source storage unit 144 and controls the sound source information to be output through the speaker 143.

In addition, the control unit 142 detects the current speed information of the vehicle from the TCU 150, and controls the speaker 143 so that the sound volume of the sound source is output in accordance with the detection information.

That is, the controller 142 controls the sound volume of the sound source output through the speaker 143 to increase as the vehicle speed increases.

Since the noise generated while the internal combustion engine of a typical vehicle is idling is about 35 to 45 decibels (dB), for example, when the speed detected from the TCU 150 is 20 km or less, the control unit 142 stores the sound source storage unit. A sound source (for example, engine sound) stored in 144 is output at a size of about 40 decibels so that the pedestrian can hear the engine sound output through the speaker 143.

In addition, when the speed detected from the TCU 150 is 20Km to 40Km, the control unit 142 outputs the sound source (engine sound) to a size of about 60 decibels, which is the size of a sound generated in a daily conversation, and the TCU When the speed detected from 150 is 40Km to 60Km, the controller 150 outputs the sound source (engine sound) to about 85 decibels, which is the size of the sound generated when listening to music. To listen to).

In addition, when the vehicle speed is 60Km or more high speed driving, it is also possible to control the sound source (engine sound) to be output at a predetermined decibel or not output.

In addition, the controller 142 controls the sound volume of the sound source output through the speaker 143 to vary according to whether the pedestrian is detected.

That is, when the pedestrian approaches the vehicle, the sensor unit 160 detects the pedestrian's approach and provides it to the control unit 142, and the control unit 142 outputs the sound source output to the speaker 143 based on the access signal. The sound is changed to a certain decibel (for example, 60 decibels or 85 decibels) and output.

In addition, when it is determined that there is a pedestrian through the sensor unit 160, the controller 142 calculates a distance between the pedestrian and the vehicle and according to the calculation result, the sound volume of the sound source output to the speaker 143. It is also possible to output differently.

That is, if the calculation result is within a predetermined reference value (a predetermined distance), the sound output is about 85 decibels, and when the calculation result is more than the preset reference value, the sound output is about 60 decibels.

The speaker 143 is configured to output a predetermined engine sound or a sound source preset by a manufacturer or a driver, and may be any type of dynamic speaker, crystal speaker, or condenser speaker. However, it is desirable to use a dynamic speaker using permanent magnets and coils.

The sound source storage unit 144 is configured of a memory using a semiconductor, and the sound source stored in the sound source storage unit 144 stores one or more engine sounds of an internal combustion engine and a specific sound preset by a user.

The sensor unit 160 is installed on bumpers in front and rear of the vehicle, and detects whether a pedestrian or an object approaches the vehicle, and provides the result to the control unit 142. Preferably, the sensor unit 160 includes an ultrasonic sensor.

In addition, the sensor unit 160 according to the present invention may be fixed to the front surface of the sound source output unit case 141 through the support unit 161 to be configured integrally.

Therefore, the driver is installed at a location far from the driver, and is installed at a location closest to the pedestrian so that an effective sound source can be transmitted, and an appropriate sound source can be output according to the driving speed of the vehicle and the presence or absence of the pedestrian.

6 is a flowchart illustrating a sound source output process of the speaker integrated bumper according to the present invention.

2 to 6, the sound source output process of the integrated speaker bumper according to the present invention will be described. The control unit 142 detects vehicle speed information from the TCU 150 (S100) and is detected in step S100. The volume of sound to be output through the speaker 143 is determined according to the speed information (S110).

The controller 142 outputs the sound source stored in the sound source storage unit 170 at the volume of the sound determined in step S110 (S120). The sound source outputs any one sound source set by the user or the driver among engine sounds of the internal combustion engine and sound sources previously stored by the user or the driver.

After performing the step S120, the controller 142 detects whether there is a pedestrian or an object approaching the vehicle through the sensor unit 160 (S130), and information on the pedestrian or the object approaching the vehicle is not detected. If not, the sound source is output at the volume set in step S110 (S140).

In addition, when the information on the pedestrian or the object approaching the vehicle is detected in step S130, the control unit 142 performs the step S110 again to change the sound volume set when the pedestrian or the object approaches. The sound source is output according to the determined size.

On the other hand, when the information on the pedestrian or the object approaching the vehicle is detected in step S130 to change the set sound volume, the control unit 142 calculates the distance between the vehicle and the pedestrian or object, If the calculation result is within a preset reference value (a certain distance), for example, a sound source is output at a sound level of about 85 decibels. If the calculation result is above a preset reference value, for example, a loudness of about 60 decibels So that the sound source is output.

Therefore, a sound source having an appropriate sound volume can be output according to the running speed of the vehicle and the presence or absence of pedestrians.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It can be understood that

100 bumper assembly 110
111 through hole 120 shock absorbing member
130: back beam 140: sound source output unit
141: sound source output unit case 142: control unit
143: speaker 144: sound source storage unit
150: TCU 160: sensor
161: support

Claims (8)

As a speaker integrated bumper,
A bumper assembly installed on the vehicle; And
And a sound source output unit installed in the bumper assembly and configured to detect speed information of the vehicle and control a predetermined sound source to be output to the outside of the vehicle according to the speed information. The method of claim 1,
The sound source output unit is a sound source output unit case;
A speaker accommodated in the sound source output unit case and outputting the sound source;
A sound source storage unit storing a sound source to be output to the speaker; And
And a control unit which detects speed information of the vehicle from a TCU and controls a sound source stored in the sound source storage unit to be output through the speaker according to the information. The method of claim 2,
The controller integrated bumper, characterized in that the sound volume of the sound source output through the speaker increases as the speed of the vehicle increases. The method of claim 2,
Further comprising a sensor unit for detecting the presence of a pedestrian approaching the vehicle and outputs to the control unit,
The controller integrated bumper, characterized in that the sound volume of the sound source output through the speaker is variable depending on whether the pedestrian is detected. The method of claim 4, wherein
Speaker unit bumper, characterized in that the sensor unit is integrally installed on the front of the sound source output unit case. The method according to any one of claims 2 to 5,
The sound source stored in the sound source storage unit is a speaker integrated bumper, characterized in that at least one or more of the sound source of the engine sound of the internal combustion engine and a specific sound preset by the user. As a method of controlling the sound source output of the speaker integrated bumper,
(a) detecting, by the sound source output unit, speed information of the vehicle from the TCU;
(b) setting a volume of sound to be output through the speaker of the sound source output unit according to the speed information detected in the step (a); And
and (c) outputting a sound source stored in a sound source storage unit of the sound source output unit at the volume of the sound set in step (b). The method of claim 7, wherein
(d) the sound source output unit may further include outputting the sound source at the loudness set in the step (b) or outputting the sound source at the new loudness according to whether the pedestrian approaching the vehicle is detected. A sound source output control method for a speaker integrated bumper.
KR1020100041788A 2010-05-04 2010-05-04 Bumper of integrated speaker and method for controling the same KR20110122347A (en)

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Application Number Priority Date Filing Date Title
KR1020100041788A KR20110122347A (en) 2010-05-04 2010-05-04 Bumper of integrated speaker and method for controling the same

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113978400A (en) * 2020-07-27 2022-01-28 丰田自动车株式会社 Vehicle front structure
US20230191991A1 (en) * 2021-12-16 2023-06-22 Hyundai Motor Company Virtual engine sound system and control method for the same
US11912196B2 (en) 2021-02-22 2024-02-27 Hyundai Motor Company Apparatus for outputting virtual engine sound

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113978400A (en) * 2020-07-27 2022-01-28 丰田自动车株式会社 Vehicle front structure
CN113978400B (en) * 2020-07-27 2024-04-26 丰田自动车株式会社 Front structure of vehicle
US11912196B2 (en) 2021-02-22 2024-02-27 Hyundai Motor Company Apparatus for outputting virtual engine sound
US20230191991A1 (en) * 2021-12-16 2023-06-22 Hyundai Motor Company Virtual engine sound system and control method for the same

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