KR102500101B1 - Exhaust sound output system for electric vehicles and vehicles - Google Patents

Abstract

The present invention relates to an exhaust sound outputting system for electric vehicles and vehicles which output an exhaust sound for each virtual speed change section while being in proportion to the actual driving speed of vehicles. In particular, the present invention is mounted on electric vehicles which do not produce exhaust sound or normal fuel vehicles producing driving exhaust sound. When the vehicle owner wants to experience driving in sports or racing modes other than the normal driving, the vehicle owner may operate a module system during driving. Accordingly, exhaust sound (different sounds for each mode) which is stored while being matched (after the comparison and determination executed by receiving data from the ECU regarding speed information detected from a speed sensor according to the stamping on the accelerator) with the gear ratio for each virtual speed change section which is programmed in advance according to the increasing and decreasing speed of an accelerator is individually outputted. Therefore, exhaust sound produced during high-speed driving other than the common exhaust sound produced during driving, which is difficult to be experienced by normal people, may be directly delivered to the driver (for example, when the actual speed is 100 km, the virtual speed change gear ratio level which is programmed in proportion thereto and the speed of the section thereof are 200-400 km, thereby outputting a high-speed racing exhaust sound). Consequently, the driver may experience amusement and interest during driving. To this end, the present invention comprises a virtual speed change module and a sound outputting device.

Description

Exhaust sound output system for electric vehicles and vehicles that outputs exhaust sound for each virtual shifting section in proportion to the speed of the actual vehicle

The present invention is installed in an electric vehicle that does not generate exhaust sound or a general fuel vehicle that generates driving exhaust sound, and when the vehicle owner wants to feel driving in sports or racing mode other than normal driving, when the module system is operated while driving, Matching the pre-programmed gear ratio for each virtual shifting section (contrasting the speed information detected from the speed sensor according to the step on the accelerator by receiving the data from the ECU) and outputting the stored exhaust sound (different sound for each mode). Bar, in addition to the normal normal driving exhaust sound, the exhaust sound during high-speed driving, which is difficult for the general public to encounter, is directly transmitted to the driver (for example, if the actual speed is 100 km, the number of virtual gear ratios programmed in proportion to this and the speed in the section is 200 km to 400 km, An exhaust sound output system for electric vehicles and vehicles that outputs an exhaust sound for each virtual shifting section in proportion to the driving speed of a real vehicle, characterized in that it induces fun and interest to the driver when driving by outputting a high-speed racing exhaust sound) It is about.

In general, an electric vehicle is a vehicle that receives power from a power system and charges the battery to operate, and does not have an exhaust system.

Accordingly, some electric vehicle owners are not satisfied with the electric power operation sound that is output as small as the electric vehicle's specific fine sound or wheezing output during driving, and misses the exhaust system of the traditional general vehicle.

Accordingly, some owners of electric vehicles are tuning to the shape of a general vehicle by separately attaching only the end tip of the muffler to the rear bumper, which is recognized as insufficient tuning because no substantial exhaust sound is generated.

In addition, the applicant of the present application has applied for and registered a patent for an actual sound detection and sound amplification system for vehicles (Patent Registration No. 10-2073145 / registered on January 29, 2020), which converts the actual exhaust sound of a combustion vehicle into a stethoscope. It detects it and outputs it to the speaker.

However, there is currently no proposal that satisfies the needs of consumers (owners) who want an exhaust sound to be output for an electric vehicle.

In addition, car owners with general fuels (gasoline, diesel, LPG) are also bored with general driving. It is a part that is expensive or only accessible to special racing experts, and the tuning industry is required to respond to this.

1. Republic of Korea Patent Registration No. 10-0925928 (registered on 2009.11.02)

In order to solve the above problems, the present invention is installed in an electric vehicle that does not generate exhaust sound or a general fuel vehicle that generates driving exhaust sound, and when the vehicle owner wants to feel driving in sports or racing mode other than normal driving, the module system is installed while driving. When it is operated, it matches the gear ratio for each virtual shifting section pre-programmed according to the increase or decrease of the accelerator (the speed information detected from the speed sensor according to the step on the accelerator is received and compared with the data from the ECU), and the stored exhaust sound (different for each mode) In addition to the normal normal driving exhaust sound, the exhaust sound during high-speed driving, which is difficult for the general public to encounter, is directly transmitted to the driver (for example, if the actual speed is 100 km, the virtual shift gear ratio programmed in proportion to this and The section speed is 200 km to 400 km, and a high-speed racing exhaust sound is output), so that the driver has fun and interest while driving.

Therefore, the present invention enables the sound case of the sound output device to selectively output low, mid, and high sounds (or customized_unique exhaust sound) for each shifting section exhaust sound, which is a double-pipe sound. In the case where the speaker is built into the case, the purpose is to provide a simple setting of the precise sound range of the sound (exhaust sound) by changing the installation depth of the speaker or the gap between the speakers, the length of the sound case, and various structural changes in the shape of the inside and outside of the sound case. there is.

In addition, the present invention enables the vehicle owner to precisely match the desired exhaust sound compared to the convenient and easy installation structure, so that rich surround-type sound is secured and high-performance output of the exhaust sound can be promoted without emission of exhaust gas (exhaust gas). The purpose of this is to provide that tuning satisfaction is secured without causing environmental problems.

In addition, the present invention is equipped with a shielding net at the opening of the sound case to fundamentally block the inflow of insects, pests (insects) and scattering foreign matter or dirt from the outside, which prevents the output problem of exhaust sound while protecting the speaker. Its purpose is to provide what prevents it from happening.

In order to achieve the above object, the present invention provides a power supply unit 110 that controls ON/OFF while being connected to one power supply terminal, and is connected to the power supply unit 110 in a circuit to transmit speed data from the ECU of the vehicle. Receives a pre-programmed shifting gear ratio (each speed data collected by the ECU through the speed sensor is matched to the pre-programmed RPM section in the data computation unit, allowing the gear ratio to be recognized as if gear shifting occurs in each speed section/ electric vehicle motor speed Speed detection using a sensor - A sound output device to output the exhaust sound (decibels or gear shifting section) of the stored level while matching with the motor RPM simple increase according to stepping on the accelerator without mechanical shifting during speed acceleration and deceleration. 200) is provided with a data computation unit 120, and a mode conversion unit that is connected to the data computation unit 120 in a circuit and allows selection of any one mode among normal, comfort, sports, and racing modes ( 130) and the virtual shift module 100 to be provided; When an output signal is received through the data computation unit 120 of the virtual shift module 100, the stored exhaust sound is output, but the sound storage unit 210 stores artificial exhaust sound produced by sound equipment or a computer or recorded actual exhaust sound. ) is provided on a circuit, and a speaker 220 is provided to output the recorded exhaust sound by being connected to the sound storage unit 210 on a circuit, but a sound case 230 is mounted on the outside of the speaker 220. The sound output device 200 to be; made up of

Accordingly, the sound case 230 is a tubular body (cylindrical, square tubular, etc.) in the form of a cup tube or a tumbler, and an opening 231 is formed on one side so that the speaker 220 can be inserted and mounted in the inner space. When the speaker 220 is inserted through the opening 231, the mounting position of the section from the opening 231 to the inner wall of the sound case is selectively determined and fixed, but the opening 231 of the sound case ) is coupled with a flange 371 and a connection reducer 370 having a funnel-shaped tube diameter 372 so that the low, mid, and high sounds of the exhaust sound are output as long waves (sending long and far sounds) according to the selected pipe diameter. At the end of the funnel-shaped tube diameter 372 of the connection reducer, a muffler end tip 380 is formed to be coupled by a pipe band 390, and the speaker 220 enters the sound case through the opening 231. When entering, it is formed to be mounted inside the sound case after being attached to the coupling surface of the guide control tube (400: one of the treble, mid-range, and low-pitched sounds is selected and the length to be inserted is already determined).

At this time, a cover net 700 having a detachable structure is mounted on the opening 231 of the sound case. a mesh plate 710 to be blocked; A plurality of inlet holes 721 are formed on the surface and arranged at the rear end of the mesh plate 710, but the inlet holes 721 allow intermittent entry (flow through) when rainwater flows in, while sound emission an outer plate 720 for smooth output; A plurality of exhaust holes 731 are formed on the surface to be disposed at the rear end of the outer plate 720, but the exhaust holes 731 are disposed at a position where the inlet hole 721 and the origin axis are spaced apart from each other, 721) and the inner plate 730 that blocks the transmission of rainwater entering through the speaker from flowing into the speaker side while smoothly outputting sound; A support frame 740 to form an integral frame while surrounding the square edges of the mesh plate, outer plate, and inner plate; made up of

In this way, when the vehicle owner wants to feel driving in a sports or racing mode other than normal driving, the present invention operates the module system while driving and matches the gear ratio for each gear ratio programmed in advance according to the increase or decrease of the accelerator (accelerator step). Accordingly, there is an effect of outputting the stored exhaust sound (different sound for each mode) while receiving data from the ECU and comparing the speed information detected from the speed sensor.

In addition to the normal normal driving exhaust sound, the present invention directly transmits the exhaust sound during high-speed driving, which is difficult for the general public to encounter, to the driver (eg, if the actual speed is 100 km, the number of virtual shifting gear ratios programmed in proportion to this and the section speed is 200 km to 400 km As a high-speed racing exhaust sound is output), there is an effect of causing fun and interest to the driver during driving.

Therefore, the present invention enables the sound case of the sound output device to selectively output low, mid, and high sounds (or customized_unique exhaust sound) for each shifting section exhaust sound, which is a double-pipe sound. In the case where the speaker is built into the case, there is an effect of enabling a precise sound range of sound (exhaust sound) to be easily set by various structural changes in the installation depth or internal spacing of the speaker, the length of the sound case, and the shape of the internal and external appearance.

In addition, the present invention enables the vehicle owner to precisely match the desired exhaust sound compared to the convenient and easy installation structure, so that rich surround-type sound is secured and high-performance output of the exhaust sound can be promoted without emission of exhaust gas (exhaust gas). This has the effect of securing tuning satisfaction without causing environmental problems.

In addition, the present invention is equipped with a shielding net at the opening of the sound case to fundamentally block the inflow of insects, pests (insects) and scattering foreign matter or dirt from the outside, which prevents the output problem of exhaust sound while protecting the speaker. This has the effect of preventing it from happening.

1 and 2 are diagrams illustrating the configuration of an exhaust sound output system for electric vehicles and vehicles that outputs exhaust sounds for each virtual shifting section in proportion to the driving speed of an actual vehicle according to the present invention;
3 is an exemplary side cross-sectional view showing an exhaust sound output device for an electric vehicle according to the present invention;
4 is an exemplary external view of FIG. 3;
5 is an exemplary view showing an assembled state of a guide control tube and a speaker according to the present invention;
6 to 7 are exemplary diagrams showing that the exhaust sound according to the present invention is output in various embodiments;
8 to 9 are exemplary views showing a shielding net according to the present invention.

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

First, as shown in FIGS. 1 and 2 , the present invention largely consists of a virtual shift module 100 and a sound output device 200 .

Accordingly, the virtual shift module 100 is composed of a power supply unit 110, a data computation unit 120, and a mode conversion unit 130.

That is, the virtual shift module is formed to be separately fixed around the driver's seat as a kind of set-top box, and is connected to the ECU on the circuit to receive vehicle driving speed information detected from a motor speed sensor or other speed sensor as data. .

Since this speed detection technique is the same as an additional tuning method such as a conventional speed-linked identification gauge, a detailed description thereof will be omitted.

At this time, the power supply unit 110 is formed to control ON/OFF of the entire system while being connected to one power supply terminal.

That is, the power supply unit is provided on the circuit board of the virtual shift module, so that power is supplied to the circuit by the vehicle's cigarette jack, USB port or self-rechargeable battery, but a separate switch terminal block is formed on one side of the power supply unit to turn ON/OFF is formed to promote

On the other hand, the data computation unit 120 is connected to the power supply unit 110 in circuit, receives speed data from the ECU of the vehicle, matches it with a pre-programmed shift gear ratio, and outputs a stored level of exhaust sound (decibels or exhaust sound for each shift section) It is formed to send a signal to the sound output device 200.

For example, an electric vehicle uses a motor speed sensor to detect speed, and when accelerating or decelerating, such an electric vehicle simply increases or decreases the motor RPM by stepping on the accelerator without mechanical shifting.

At this time, the data computation unit 120 matches each speed data collected by the ECU through the speed sensor to the pre-programmed RPM section in the data computation unit, and recognizes the gear ratio for each speed section as if gear shifting occurs.

Accordingly, the data computer unit sends a signal to the sound output device 200, which will be described below, for an exhaust sound corresponding to the speed in the corresponding shifting range, and the driver can check the speed in the corresponding shifting range through a separate display for identification. It is desirable to have

That is, the virtual shift module is a kind of set-top box, and an LED display is formed on one side of the outer circumferential surface so that the virtual speed for each mode can be immediately checked.

At this time, the mode conversion unit 130 is connected to the data computation unit 120 in a circuit and is formed to select any one mode among normal, comfort, sports, and racing modes.

That is, the mode conversion unit 130 is made in the form of a button on the outer surface of the virtual shift module, which is like a set-top box, and when one of the four modes is selected while driving the vehicle, the actual speed is matched with the speed of the shift section of the corresponding mode. It is adjusted so that the set exhaust sound can be output.

To explain this in more detail, the present invention, for example, in the case of an electric vehicle, the virtual shift module creates a virtual gear and gear ratio, and the electronic exhaust sound is interlocked so that the speaker outputs it, and is formed to be controlled in proportion to the actual speed.

That is, an electric vehicle without a gear has no exhaust sound (only motor rotation noise remains), and the present invention receives speed information from the ECU of the electric vehicle (detecting the rotation speed of the motor of the electric vehicle with a speed sensor) and data of the virtual shift module. It is input to the computer unit and matched with virtual gears and gear ratios.

According to the present invention, gear ratios can be set to 5 to 12 according to the gear ratio during virtual gear shifting, and the gear ratio of each gear is also arbitrarily adjusted by the driver through the data computer unit (when adjusting the gear ratio, through a separate up-down button formed on the outer circumference of the set-top box) It is possible to change the number), and it has a feature that allows the driver to control the exhaust sound as desired.

In other words, if the gear ratio is increased, the sound of a muscle car (low-tempo based low tempo) is output, and if the gear ratio is reduced, a sound of a racing car (fast tempo based on high temperature) is output. The RPM of the conversion module is formed to output the exhaust sound while operating at 4000 to 6000 RPM while being proportional to the set corresponding value.)

These driving modes can be divided into normal, comfort, sports, and racing, and by setting a different gear ratio for each mode, sound performance is output at the time of shifting.

In particular, in the racing mode, the unique sound of the high-compression engine, after-fire (flame phenomenon caused by excessive fuel in the muffler), and overboost (excessive intake compressed air) can be output, so you can enjoy driving a real racing car. can feel

Accordingly, as shown in FIGS. 2 to 7 , the sound output device 200 is configured to output the stored exhaust sound when an output signal is received through the data computer 120 of the virtual shift module 100.

At this time, the sound output device 200 is provided with a sound storage unit 210 on a circuit for storing artificial exhaust sound produced by sound equipment or a computer or recorded actual exhaust sound, and the sound storage unit 210 and the circuit A speaker 220 is provided to output the exhaust sound that is connected and recorded, and a sound case 230 is mounted on the outside of the speaker 220.

Accordingly, the sound storage unit 210 is formed to store sound of a high-speed driving sports mode or racing mode according to each mode and output the sound through a speaker.

At this time, the speaker 220 is preferably provided in the form of a circular plate, commonly referred to as a bread speaker.

Accordingly, the sound case 230 is a tubular body (cylindrical, square tubular, etc.) in the form of a cup tube or a tumbler, and has an opening 231 formed on one side so that the speaker 220 can be inserted and mounted therein.

That is, the sound case is formed so that the exhaust sound generated from the speaker sounds in a vibrating structure (surround).

At this time, when the speaker 220 is inserted through the opening 231, the mounting position of the section from the opening 231 to the inner wall 235 of the sound case is selectively determined and fixed.

That is, the sound case is formed so that a speaker can be inserted and mounted inside the sound case, and the sound case has a double tube structure in which an inner cylinder 232 and an outer cylinder 233 are spaced apart by an air layer 234.

In addition, the sound case is formed of a synthetic resin (plastic) material having a porous, high-hardness, and high-reflection structure, so that a sound volume is output abundantly when an exhaust sound is output.

Accordingly, the sound case has a fastening band 360 equipped with a fixing bracket 361 formed on one side of the outer circumferential surface of the vehicle, such as the interior floor of the vehicle (as a driver's seat, a structure fixed to the steel structure of the seat) or the underside of the vehicle's exterior. It is formed so that it can be bolted to the metal support of the frame or to the bumper fixture.

In other words, when the sound output device composed of one assembly (assay) through the sound case is installed inside the vehicle, the exposure of the exhaust sound to the outside is minimized, so that the high-powered exhaust sound can be enjoyed alone without any damage to the surroundings in the traffic flow. Conversely, in the case of mounting on the outside of the vehicle, this is to make it possible to inform the surroundings of the individuality of the vehicle.

Accordingly, a connection reducer 370 having a flange 371 and a funnel-shaped pipe diameter 372 is coupled to the opening 231 of the sound case, and depending on the selected pipe diameter, the low, middle, and high sounds of the exhaust sound are long waves (long and far). It is formed to be output as a sound).

At this time, a muffler end tip 380 is coupled to the end of the funnel-shaped pipe diameter 372 of the connection reducer by a pipe band 390.

Accordingly, when the speaker 220 enters the inside of the sound case through the opening 231, the combination of the guide control tube 400 (one of the treble, mid-tone, and low-pitched sound ranges is selected and the distance to be inserted has a predetermined length) It is formed to be mounted on the inside of the sound case after the piece fixing is attached and coupled to the surface.

That is, the entrance side end of the guide control pipe is in close contact with the inner wall of the sound case, and a flange for fixing the assembly hole and the piece of the speaker is formed at the end toward the opening to solder the inner and outer tubes together.

At this time, the muffler end tip 380 is coupled to the end of the funnel-shaped pipe diameter 372 of the connection reducer by a pipe band 390 so that the vehicle owner's personality and unique aesthetics can be expressed in various ways when installed externally. do.

In addition, as shown in FIG. 7, the sound case has a booster output pipe 500 connected from a communication pipe (510: a bent pipe bent in the shape of a D-shaped, joint flanges are coupled to both ends to be bolted) on one side of the outer circumference They are provided side by side and the exhaust sound output from the speakers is formed so that the double speaker structure can be amplified and output.

That is, the booster output tube is a tube body that amplifies sound separately together with the sound case, and has an opening formed on one side, and the inner and outer tubes are formed in the form of a double tube with an air layer interposed therebetween like the sound case. This is to ensure that the sound vibrates and echoes. m

Accordingly, the electrical connection line 237 between the data computer unit, the sound storage unit, and the speaker is branched through the through hole 238 of the sound case so as to be electrically energized, but the through hole 238 has a through hole 610 in the packing. 600 is mounted and formed to promote strong airtightness and sealing.

In addition, the outer diameter of the speaker and the guide control pipe 400 is formed to be slightly narrower than the inner diameter of the sound case, and the guide control pipe 400 has a rear end with one side open to form a sound passage 410 for return. Thus, the rear side sound of the speaker is formed so that it can return toward the opening of the sound case.

At this time, in the sound case, a sound path having a zigzag reflector 321 and a discharge groove 322 is formed at the rear end where the speaker is disposed and on the inner circumferential surface so that the output of the exhaust sound toward the front of the vehicle in addition to the output to the opening is output in three dimensions. is formed

On the other hand, when the sound output device including the sound case is installed outside of a vehicle, as shown in FIGS. 8 to 9 , the detachable shielding net 700 is mounted on the opening 231.

At this time, the shielding net 700 is largely composed of a mesh plate 710, an outer plate 720, an inner plate 730, and a support frame 740.

Accordingly, the mesh plate 710 is to block the inflow of insects, pests (insects), and scattering foreign matter or dirt from the outside.

At this time, the outer plate 720 is arranged at the rear end of the mesh plate 710 with a plurality of inlet holes 721 formed on the surface, but the inlet holes 721 intermittently enter (through flow) when rainwater flows in. ) is tolerated, and the emission of sound is formed so that it is output smoothly.

In addition, the inner plate 730 is disposed at the rear end of the outer plate 720 while a plurality of exhaust holes 731 are formed on the surface, and the exhaust holes 731 and the inlet hole 721 have an origin axis. It is arranged at a spaced position and the penetration of rainwater entering through the inlet hole 721 is prevented from flowing into the speaker side, while the sound is smoothly output.

Accordingly, the support frame 740 is formed to form an integral frame while surrounding the square edges of the mesh plate, the outer plate, and the inner plate.

To explain this in more detail, a support block 750 is embedded between the outer and inner plates to form a constant space between the outer and inner plates, so that rainwater introduced through the outer plate is directed downward of the support frame. It is formed so that it can flow into.

At this time, it is preferable that a plurality of drainage holes 741 are formed on the lower side of the support frame. It is preferable to provide a step so that the water that flows down is drained to the outside through the opening of the sound case so that it is drained.

In addition, a plurality of inlet holes and exhaust holes are provided on the surface of the inner and outer side plates of the double structure, but the inlet holes and the exhaust holes are arranged with circular axes spaced apart in a zigzag form, which prevents rainwater from entering the speaker side. However, the exhaust sound is formed to be output smoothly.

In other words, such a shielding net can fundamentally block the inflow of insects, pests (insects) and external foreign substances or scattering dirt, which is to protect the speaker and prevent damage.

The present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by anyone skilled in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes are within the scope of the claims.

100 ... virtual shift module 110 .. power supply unit
120 ... data computation unit 130 ... mode conversion unit
200 ... sound output device 210 ... sound storage unit
220 ... speaker 230 ... sound case
231 ... opening 232 ... inner cylinder
233 ... outer cylinder 234 ... air layer
235 ... inner wall 321 ... reflector
322 ... discharge groove 360 ... fastening band
361 ... fixed bracket 370 ... connection reducer
371 ... flange 372 ... funnel
380 ... muffler end tip 390 ... pipe band
400 ... guide control pipe 410 ... sound passage
500 ... booster output tube 510 ... communicating tube
600 ... packing 610 ... through hole
700 ... screen net 710 ... mesh plate
720 ... outer plate 721 ... inlet hole
730 ... inner plate 731 ... exhaust hole
740 ... support frame

Claims (3)

A power supply unit 110 that controls ON/OFF while being connected to one power supply terminal is provided, and is connected to the power supply unit 110 in circuit to receive speed data from the ECU of the vehicle and store it while matching with a pre-programmed shift gear ratio. A data computation unit 120 is provided to send a signal to the sound output device 200 so that the exhaust sound of the level is output. a virtual shift module 100 having a mode conversion unit 130 capable of selecting a mode; A sound storage unit 210 for storing artificial exhaust sound produced by sound equipment or a computer or actual recorded exhaust sound is provided in a circuit, and a speaker connected to the sound storage unit 210 in a circuit to output the recorded exhaust sound 220 is provided, but the sound output device 200 is equipped with a sound case 230 outside the speaker 220; In an exhaust sound output system for electric vehicles and vehicles configured to output an exhaust sound for each virtual shifting section in proportion to the driving speed of the actual vehicle,
The sound case 230 is a tubular body in the form of a cup tube or a tumbler, and an opening 231 is formed on one side so that the speaker 220 can be inserted and mounted in the inner space. The speaker 220 has an opening 231 ) When inserted through the opening 231, the mounting position of the section up to the inner inner wall 235 of the sound case is selectively determined and fixed, but the flange 371 is installed in the opening 231 of the sound case. and a connection reducer 370 having a funnel-shaped tube diameter 372 are combined to form a low, middle, and high-pitched sound of the exhaust sound in long waves according to the selected tube diameter, and the end of the funnel-shaped tube diameter 372 of the connection reducer The muffler end tip 380 is formed to be coupled by the pipe band 390, and the speaker 220 is attached and coupled to the coupling surface of the guide control pipe 400 when entering the inside of the sound case through the opening 231. An exhaust sound output system for electric vehicles and vehicles that outputs an exhaust sound for each virtual shifting section while being proportional to the driving speed of the actual vehicle, characterized in that it is installed inside the sound case after being installed.
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