TWM549265U - Auxiliary loudspeaker for car and motorcycle - Google Patents
Auxiliary loudspeaker for car and motorcycle Download PDFInfo
- Publication number
- TWM549265U TWM549265U TW106207985U TW106207985U TWM549265U TW M549265 U TWM549265 U TW M549265U TW 106207985 U TW106207985 U TW 106207985U TW 106207985 U TW106207985 U TW 106207985U TW M549265 U TWM549265 U TW M549265U
- Authority
- TW
- Taiwan
- Prior art keywords
- speaker
- sound
- speed
- vehicle
- parameter value
- Prior art date
Links
Landscapes
- Exhaust Silencers (AREA)
Description
本創作係有關於一種汽、機車揚聲輔助器，此尤指一種可根據動力轉速及車速的的參數值對應輸出排氣仿聲之汽、機車揚聲輔助器，藉此可調整排氣聲音，以符合環保法規的低噪音要求，又能降低車輛事故的發生，有效提升行車安全者。 This creation department relates to a steam and locomotive speaker auxiliary device. In particular, it can be used to adjust the exhaust sound according to the parameter value of the power speed and the vehicle speed corresponding to the output of the exhaust sound-like sound and the locomotive speakerphone. In order to meet the low noise requirements of environmental protection regulations, it can reduce the occurrence of vehicle accidents and effectively improve traffic safety.
由於近十幾年來環保概念的崛起，使得無排氣或低噪音車輛(如電動車、低排碳量的柴油車)成為汽、機車發展的新主流，這些類型的車輛，在行走時通常比較安靜，使得大家的警覺心大為降低，因此路上行人或其他車輛的駕駛人，發現它們到來時，往往已沒有充分時間作應變，也因此衍生不少的交通事故。這種情況其實是當初重視環保節能的氛圍下，所意想不到的新問題；為此業界才推出各款式的有源消音器，藉以在環保法規所允許的低噪音範圍內，提高或增加類似車輛引擎排氣的聲音，使車子所到之處，能產生適當的行車聲音，以達到警知效果，讓行人或其他車輛駕駛人，可以及時警知來車的訊息，進而確保行車安全，以降低事故的發生率。 Due to the rise of the concept of environmental protection in the past decade, non-exhaust or low-noise vehicles (such as electric vehicles and diesel vehicles with low carbon emissions) have become the new mainstream of steam and locomotive development. These types of vehicles are usually compared when walking. Quiet, so that everyone's alertness is greatly reduced, so the drivers of the pedestrians or other vehicles, when they arrive, often do not have sufficient time to respond, and thus a lot of traffic accidents. This situation is actually an unexpected new problem under the atmosphere of environmental protection and energy conservation; for this reason, the industry has introduced various types of active silencers, so as to increase or increase similar vehicles within the low noise range allowed by environmental regulations. The sound of the engine exhausts, so that the car can generate appropriate driving sounds to achieve the alert effect, so that pedestrians or other vehicle drivers can promptly alert the car to the message, thereby ensuring safe driving to reduce The incidence of accidents.
相關的有源消音器的技術，可參酌EP 2581567 B1、EP 2590163 A2、EP 2607638 A2、EP 2610457 A1、DE 102009049280 B4等專利 前案，這些專利前案的技術手段，大體上是以偵測排氣系統內的排氣聲音為基礎，再根據測得的排氣聲音大小，對應發出一控制信號來操作該有源消音器的揚聲器，使發出一種類似排氣的仿聲，再與真實的排氣聲音混和後，由排氣尾管輸出聲音，這樣的處理方式，固然可以產生預期的排氣聲音效果，但在實際執行時仍有一些問題存在，例如： Related technologies for active silencers, which may be considered in EP 2581567 B1, EP 2590163 A2, EP 2607638 A2, EP 2610457 A1, DE 102009049280 B4, etc. In the previous case, the technical means of these patents are generally based on detecting the exhaust sound in the exhaust system, and then operating the active silencer according to the measured size of the exhaust sound. The speaker makes an imitation sound similar to the exhaust, and then mixes with the real exhaust sound, the sound is output by the exhaust tail pipe. This way of processing can certainly produce the expected exhaust sound effect, but in actual execution. There are still some problems, such as:
1.習知的偵測方式無法適用於所有的車輛，特別是電動車，因為電動車本身並無內燃機引擎的設置，所以無排氣可提供偵測。 1. The conventional detection method cannot be applied to all vehicles, especially electric vehicles. Since the electric vehicle itself does not have the setting of the internal combustion engine, no exhaust can provide detection.
2.當在停車怠速的狀態下，車輛本身並無移動，此時汽、機車的引擎並未停止運轉，但排氣系統仍處於一種排氣狀態，因此所偵測到的排氣聲音，並不能完全反映出車輛真實的行駛狀態。 2. When the vehicle is idling, the vehicle itself does not move. At this time, the engine of the steam and the locomotive does not stop running, but the exhaust system is still in an exhaust state, so the detected exhaust sound is The true driving state of the vehicle cannot be fully reflected.
3.已知的有源消音器因體積龐大，然在安裝時大多要搭配車輛既有的排氣管路系統，以及受到車底盤的空間限制，所以在安裝時有其侷限性，加以車款種類繁多，通用性不足，徒增安裝上的困擾。 3. Known active silencers are bulky, but most of them need to be equipped with the existing exhaust pipe system of the vehicle and the space limitation of the chassis. Therefore, there are limitations in the installation. There are many kinds of versatility, and there is a lack of versatility.
有鑑於習知的缺失，本案創作人歷經無數次研究改良後，終於完成本創作之汽、機車揚聲輔助器，即本案之創作目的，係在提供一種可根據動力轉速及車速的參數值對應輸出排氣仿聲之汽、機車揚聲輔助器，藉此可調整排氣聲音，以符合環保法規的低噪音要求，又能降低車輛事故的發生，有效提升行車安全者。 In view of the lack of knowledge, the creators of this case have finally completed the creation of the steam and locomotive speaker aids, which is the purpose of the creation of this case. It provides a parameter value according to the power speed and vehicle speed. The exhaust sound-like sound and the locomotive sound assisting device can be output, thereby adjusting the exhaust sound to meet the low noise requirement of the environmental protection regulations, and reducing the occurrence of vehicle accidents, thereby effectively improving the traffic safety.
為達到上述本案之創作目的，本創作之汽、機車揚聲輔助器，包含一喇叭尾管、一主機模組及一外部控制器。 In order to achieve the above-mentioned purpose of the present case, the steam and locomotive speaker aid of the present invention comprises a horn tail pipe, a host module and an external controller.
該喇叭尾管，包含一殼體及一揚聲器，該殼體設有一內部空 間及一聲音輸出口，該揚聲器安裝於該內部空間內，並固定於該殼體。 The horn tube comprises a casing and a speaker, and the casing is provided with an internal space And an sound output port, the speaker is installed in the inner space and fixed to the casing.
該主機模組，包含一動力轉速及車速偵測單元、一中央處理單元、一接收單元及一輸出單元；該動力轉速及車速偵測單元係用以偵測車輛其動力轉速及車速的參數值，並傳輸至該中央處理單元；該中央處理單元將該動力轉速及車速偵測單元所偵測到的參數值與該外部控制器的仿聲指令的設定值，進行比對運算後，輸出一控制信號給該輸出單元；該輸出單元以一連接線與該揚聲器連接，該中央處理單元輸出的控制信號控制該揚聲器的聲音輸出。 The host module includes a power speed and vehicle speed detecting unit, a central processing unit, a receiving unit and an output unit; the power speed and the vehicle speed detecting unit are used for detecting a parameter value of the vehicle's power speed and the vehicle speed. And transmitting to the central processing unit; the central processing unit compares the parameter value detected by the power speed and the vehicle speed detecting unit with the set value of the external sounding command of the external controller, and outputs a The control signal is sent to the output unit; the output unit is connected to the speaker by a connecting line, and the control signal output by the central processing unit controls the sound output of the speaker.
該外部控制器，根據駕駛人的操作指令，以無線方式輸出仿聲指令給該主機模組的接收單元，該仿聲指令包含一排氣仿聲的種類及一設定音量。 The external controller wirelessly outputs an audible command to the receiving unit of the host module according to an operation instruction of the driver, and the timbre command includes a type of venting sound and a set volume.
上述之外部控制器係一手機，該手機安裝有一仿聲專屬的APP控制程式。 The external controller described above is a mobile phone, and the mobile phone is installed with an exclusive APP control program.
上述之外部控制器係一無線搖控器，該無線搖控器上安裝有一仿聲專屬控制程式。 The external controller described above is a wireless remote controller, and a wireless sound control device is installed on the wireless remote controller.
上述之喇叭尾管的殼體，係由一中殼體、一後殼體及一前斜蓋所組成；該後殼體為一封閉端，該後殼體套接於該中殼體後側，該揚聲器設置於該後殼體內部；該前斜蓋前側設有該聲音輸出口，該聲音輸出口為該揚聲器所播放之排氣仿聲的聲音播放出口；該前斜蓋前端更設有一第一接合部，該第一接合部與一外接管一端所設的一第二接合部銜接。 The housing of the horn tube is composed of a middle housing, a rear housing and a front slant cover; the rear housing is a closed end, and the rear housing is sleeved on the rear side of the middle housing The speaker is disposed inside the rear casing; the front side of the front bevel cover is provided with the sound output port, and the sound output port is a sound playing outlet of the exhaust sound irritation played by the speaker; the front end of the front bevel cover is further provided with a The first joint portion is engaged with a second joint portion provided at one end of the outer joint.
上述之動力轉速及車速偵測單元，係用以偵測車輛其動力轉速及車速的參數值，該動力轉速的參數值，在汽、柴油車係指引擎的轉速， 並以該轉速作為擷取的參數值；在電動車係指電動機的轉速，並以該轉速作為擷取的參數值。 The above-mentioned power speed and vehicle speed detecting unit is used for detecting the parameter value of the vehicle's power speed and the vehicle speed. The parameter value of the power speed is the speed of the engine in the steam and diesel vehicles. The rotation speed is taken as the parameter value of the extraction; in the electric vehicle, the rotation speed of the electric motor is used, and the rotation speed is taken as the parameter value of the extraction.
1‧‧‧喇叭尾管 1‧‧‧ horn tube
10‧‧‧殼體 10‧‧‧shell
100‧‧‧內部空間 100‧‧‧Internal space
10A‧‧‧聲音輸出口 10A‧‧‧Sound outlet
101‧‧‧中殼體 101‧‧‧ middle casing
102‧‧‧後殼體 102‧‧‧ Rear housing
103‧‧‧前斜蓋 103‧‧‧Front cover
104‧‧‧第一接合部 104‧‧‧First joint
11‧‧‧揚聲器 11‧‧‧ Speaker
12‧‧‧外接管 12‧‧‧External
121‧‧‧第二接合部 121‧‧‧Second joint
13‧‧‧束環 13‧‧‧Bundle
131‧‧‧鎖合孔 131‧‧‧Lock hole
132‧‧‧螺栓 132‧‧‧Bolts
133‧‧‧螺帽 133‧‧‧ nuts
2‧‧‧主機模組 2‧‧‧Host module
21‧‧‧動力轉速及車速偵測單元 21‧‧‧Power speed and speed detection unit
22‧‧‧中央處理單元 22‧‧‧Central Processing Unit
23‧‧‧接收單元 23‧‧‧ Receiving unit
24‧‧‧輸出單元 24‧‧‧Output unit
3‧‧‧外部控制器 3‧‧‧External controller
C‧‧‧氣密墊片 C‧‧‧ airtight gasket
L‧‧‧連接線 L‧‧‧ connection line
第一圖，係本創作之立體分解示意圖。 The first picture is a three-dimensional exploded view of the creation.
第二圖，係本創作之立體示意圖。 The second picture is a three-dimensional diagram of the creation.
第三圖，係本創作之組合剖面示意圖。 The third picture is a schematic cross-sectional view of the creation.
第四圖，係本創作其仿聲主機模組之方塊示意圖。 The fourth picture is a block diagram of the original sounding host module.
請參閱第一至四圖所示，本創作之汽、機車揚聲輔助器，包含一喇叭尾管1、一主機模組2及一外部控制器3。 Please refer to the first to fourth figures. The steam and locomotive speaker assistant of the present invention comprises a horn tail pipe 1, a host module 2 and an external controller 3.
該喇叭尾管1，包含一殼體10及一揚聲器11，該殼體10設有一內部空間100及一聲音輸出口10A，該揚聲器11安裝於該內部空間100內，並固定於該殼體10。 The horn tube 1 includes a housing 10 and a speaker 11. The housing 10 is provided with an internal space 100 and an audible output port 10A. The speaker 11 is mounted in the internal space 100 and fixed to the housing 10. .
該主機模組2，包含一動力轉速及車速偵測單元21、一中央處理單元22、一接收單元23及一輸出單元24；該動力轉速及車速偵測單元21係用以偵測車輛其動力轉速及車速的參數值，並傳輸至該中央處理單元22；該中央處理單元22將該動力轉速及車速偵測單元21所偵測到的參數值與該外部控制器3的仿聲指令的設定值，進行比對運算後，輸出一控制信號給該輸出單元24；該輸出單元24以一連接線L與該揚聲器11連接，該中央處理單元22輸出的控制信號控制該揚聲器11的聲音輸出。 The host module 2 includes a power speed and vehicle speed detecting unit 21, a central processing unit 22, a receiving unit 23 and an output unit 24; the power speed and the vehicle speed detecting unit 21 are used to detect the power of the vehicle. The parameter values of the rotational speed and the vehicle speed are transmitted to the central processing unit 22; the central processing unit 22 sets the parameter values detected by the power rotational speed and the vehicle speed detecting unit 21 with the imitation command of the external controller 3. After the comparison operation, a control signal is output to the output unit 24; the output unit 24 is connected to the speaker 11 by a connection line L, and the control signal outputted by the central processing unit 22 controls the sound output of the speaker 11.
該外部控制器3，根據駕駛人的操作指令，以無線方式輸出仿聲指令給該主機模組2的接收單元23；該仿聲指令包含一排氣仿聲的種類 及一設定音量。 The external controller 3 wirelessly outputs an audible command to the receiving unit 23 of the host module 2 according to an operation instruction of the driver; the audible command includes a type of venting sound And set the volume.
上述之外部控制器3，係為一手機，該手機安裝有一仿聲專屬的APP控制程式，使用者可以透過該手機上所安裝的仿聲專屬APP控制程式，選擇排氣仿聲的種類，以及排氣聲音的音量大小。 The external controller 3 is a mobile phone, and the mobile phone is equipped with a sound-specific APP control program, and the user can select the type of the exhaust sound by using the sound-only APP control program installed on the mobile phone. The volume of the exhaust sound.
上述之外部控制器3，係為一無線搖控器，使用者可以透過該無線搖控器上所安裝的一仿聲專屬控制程式，選擇排氣仿聲的種類，以及排氣聲音的音量大小。 The external controller 3 is a wireless remote controller, and the user can select the type of the exhaust sound and the volume of the exhaust sound through a sound-only control program installed on the wireless remote controller. .
上述之動力轉速及車速偵測單元21，係用以偵測車輛其動力轉速及車速的參數值，其中該動力轉速的參數值，在汽、柴油車係指引擎的轉速(例如rpm)，並以該轉速作為擷取的參數值，在電動車則指電動機的轉速(例如rpm)，並以該轉速作為擷取的參數值；該車速的參數值係指單位時間車輛行走的距離(例如km/hr)，並以該車速作為擷取的參數值。 The power speed and vehicle speed detecting unit 21 is configured to detect a parameter value of a power speed and a vehicle speed of the vehicle, wherein the parameter value of the power speed is a speed of the engine (for example, rpm) in the steam and diesel vehicles, and The rotational speed is taken as the parameter value of the extraction, and in the electric vehicle, the rotational speed (for example, rpm) of the motor is used, and the rotational speed is taken as the parameter value of the vehicle; the parameter value of the vehicle speed refers to the distance traveled by the vehicle per unit time (for example, km) /hr), and use the speed as the parameter value.
上述之喇叭尾管1，其殼體10係由一中殼體101、一後殼體102及一前斜蓋103所組成；該後殼體102為一封閉端，該後殼體102套接於該中殼體101後側，該揚聲器11設置於該後殼體102內部；該前斜蓋103前側設有該聲音輸出口10A，該聲音輸出口10A為該揚聲器11所播放之排氣仿聲的聲音出口。 The horn tube 1 has a housing 10 which is composed of a middle housing 101, a rear housing 102 and a front slanting cover 103. The rear housing 102 is a closed end, and the rear housing 102 is sleeved. On the rear side of the middle casing 101, the speaker 11 is disposed inside the rear casing 102; the sound output port 10A is disposed on the front side of the front bevel cover 103, and the sound output port 10A is an exhaust simulation of the speaker 11 The sound of the sound is exported.
本創作為了加強該殼體10其內部空間100的氣密效果，因此在該後殼體102與該中殼體101之間設置有一氣密墊片C，藉以確保該殼體10組裝後，該揚聲器11所播放的仿聲，能夠順利傳送到達該前斜蓋103的聲音輸出口10A。 In order to enhance the airtight effect of the internal space 100 of the casing 10, an airtight gasket C is disposed between the rear casing 102 and the middle casing 101, thereby ensuring that after the casing 10 is assembled, The sound of the sound played by the speaker 11 can smoothly transmit the sound output port 10A reaching the front oblique cover 103.
上述的前斜蓋103，其外殼呈現一單斜向的漏斗形狀，愈接 近該聲音輸出口10A的截面漸次縮小，藉以產生集音效果。 The front oblique cover 103 has a single oblique funnel shape, and the outer casing is connected. The cross section of the sound output port 10A is gradually reduced, thereby generating a sound collecting effect.
上述的前斜蓋103，其前端更設有一第一接合部104，該第一接合部104與一外接管12一端所設的一第二接合部121銜接(該外接管12的另端係與車輛的排氣系統的管路銜接，此部分為習知結構，故圖中未揭示)，該第一接合部104與該第二接合部121的銜接，並以一束環13套設在銜接處的外周緣，利用一螺栓132一端穿過該束環13的鎖合孔131後，該螺栓132再與一螺帽133鎖合，藉以束緊該第一接合部104與該第二接合部121。 The front bevel cover 103 has a first engaging portion 104 at the front end thereof, and the first engaging portion 104 is engaged with a second engaging portion 121 provided at one end of the outer connecting tube 12 (the other end of the outer connecting tube 12 is coupled to The pipe connection of the exhaust system of the vehicle, which is a conventional structure, is not disclosed in the figure, the first joint portion 104 is engaged with the second joint portion 121, and is sleeved by a bundle of rings 13 After the end of the bolt 132 is passed through the locking hole 131 of the collar 13 , the bolt 132 is locked with a nut 133 to tighten the first joint portion 104 and the second joint portion. 121.
請參閱第四圖所示，本創作在車輛啟動後，駕駛人可依個人的喜好經由該外部控制器3來操作仿聲指令(例如利用手機上仿聲專屬APP的控制程式，或無線搖控器上的仿聲專屬控制程式)，該仿聲指令係用以選擇及設定排氣仿聲的種類及排氣聲音的音量大小；該接收單元23接收到該仿聲指令並傳輸至該中央處理單元22；該動力轉速及車速偵測單元21偵測車輛的動力轉速及車速的參數值，並傳輸至該中央處理單元22與該仿聲指令的設定值，進行比對運算後，該中央處理單元22輸出一控制信號給該輸出單元24，以控制該揚聲器11的聲音輸出。 Referring to the fourth figure, after the vehicle is started, the driver can operate the audible command via the external controller 3 according to personal preference (for example, using the control program of the exclusive APP on the mobile phone, or wireless remote control). The audible command is used to select and set the type of venting sound and the volume of the venting sound; the receiving unit 23 receives the vocal command and transmits it to the central processing The unit 22; the power speed and the vehicle speed detecting unit 21 detects the parameter values of the power speed and the vehicle speed of the vehicle, and transmits the values to the central processing unit 22 and the set value of the timbre command, and performs the comparison processing. Unit 22 outputs a control signal to the output unit 24 to control the sound output of the speaker 11.
本創作之汽、機車揚聲輔助器的體積小，而且容易安裝在車底盤狹窄的空間，故而能通用於各款車型，而輸出的排氣仿聲可以單獨直接經由該喇叭尾管1的聲音輸出口10A對外播放出，這種方式，特別適用於無排氣的電動車來使用；除此之外，也可以利用該喇叭尾管1銜接該外接管12一端，該外接管12的另端則與車輛的排氣系統的管路銜接，此種銜接方式是提供排氣仿聲與真實的排氣聲混音後再對外輸出，特別適用於一般汽、柴油車的使用。 The steam and locomotive speaker aids of this creation are small in size and easy to install in a narrow space of the chassis of the vehicle, so that they can be used in various models, and the output of the exhaust sound can be directly transmitted directly through the sound of the horn tube 1 The output port 10A is played out to the outside. In this way, it is particularly suitable for use in an electric vehicle without exhaust; in addition, the end of the external pipe 12 can also be connected by the tail pipe 1 , and the other end of the external pipe 12 Then it is connected with the pipeline of the exhaust system of the vehicle. This connection method is to provide the exhaust sound and the actual exhaust sound and then output it to the outside, which is especially suitable for the use of general steam and diesel vehicles.
綜上所述，本創作之汽、機車揚聲輔助器，可根據動力轉速及車速的的參數值對應輸出一排氣仿聲，藉此可調整排氣聲音，以符合環保法規的低噪音要求，又能降低車輛事故的發生，有效提升行車安全性；因此，本創作能有效解決習式所存缺失，且本創作所用的技術手段，又為先前技術所無，故而本創作具有專利之新穎性及進步性要件者。 In summary, the steam and locomotive speaker aids of the present invention can output an exhaust noise according to the parameter values of the power speed and the vehicle speed, thereby adjusting the exhaust sound to meet the low noise requirements of environmental regulations. Moreover, it can reduce the occurrence of vehicle accidents and effectively improve the safety of driving; therefore, this creation can effectively solve the lack of the practice, and the technical means used in this creation is not the prior art, so the creation has patent novelty. And progressive requirements.
在本創作內容中所提出之具體實施例，僅用以方便說明本創作之技術內容，而非將本創作狹義地限制於上述實施例，在不超出本創作之精神與下述之申請專利範圍的情況下，所作的種種變化實施，仍屬於本創作之範圍。 The specific embodiments set forth in the present disclosure are merely for convenience of explanation of the technical content of the present invention, and the present invention is not limited to the above embodiments, and does not exceed the spirit of the present invention and the following patent application scope. In the case of the implementation of the various changes, still belongs to the scope of this creation.
11‧‧‧揚聲器 11‧‧‧ Speaker
2‧‧‧主機模組 2‧‧‧Host module
21‧‧‧動力轉速及車速偵測單元 21‧‧‧Power speed and speed detection unit
22‧‧‧中央處理單元 22‧‧‧Central Processing Unit
23‧‧‧接收單元 23‧‧‧ Receiving unit
24‧‧‧輸出單元 24‧‧‧Output unit
3‧‧‧外部控制器 3‧‧‧External controller
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106207985U TWM549265U (en) | 2017-06-05 | 2017-06-05 | Auxiliary loudspeaker for car and motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106207985U TWM549265U (en) | 2017-06-05 | 2017-06-05 | Auxiliary loudspeaker for car and motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM549265U true TWM549265U (en) | 2017-09-21 |
Family
ID=60765314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW106207985U TWM549265U (en) | 2017-06-05 | 2017-06-05 | Auxiliary loudspeaker for car and motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM549265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183750A (en) * | 2021-04-29 | 2021-07-30 | 东风汽车集团股份有限公司 | Structure for sounding by using automobile exhaust, control method thereof and exhaust system tail pipe |
-
2017
- 2017-06-05 TW TW106207985U patent/TWM549265U/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183750A (en) * | 2021-04-29 | 2021-07-30 | 东风汽车集团股份有限公司 | Structure for sounding by using automobile exhaust, control method thereof and exhaust system tail pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5681691B2 (en) | Active design of exhaust noise | |
| CA2505272A1 (en) | Exhaust system for motorcycle | |
| US20170337915A1 (en) | System and method for controlling sound character for a vehicle | |
| WO2013157539A1 (en) | Vehicle sound generation apparatus, and vehicle sound generation method | |
| TWM549265U (en) | Auxiliary loudspeaker for car and motorcycle | |
| JP2011033394A (en) | Exhaust pressure detection apparatus of vehicle engine | |
| CN202690185U (en) | Muffler assembly for automobile | |
| CN206016910U (en) | A kind of automotive muffler | |
| CN207199293U (en) | Vapour, locomotive are raised one's voice assistor | |
| JPH05214969A (en) | Exhaust gas device of reciprocating piston engine for automobile | |
| CN104329150A (en) | Car muffler assembly | |
| CN217440130U (en) | Exhaust system for improving noise in vehicle | |
| KR101714325B1 (en) | Apparatus for reduction of fuel consumption and of exhaust gas generation | |
| CN202789015U (en) | Resonance type silencer assembly and motorcycle with the same | |
| KR101071686B1 (en) | Traveling noise generation apparatus of electric type motorcycle | |
| CN207454082U (en) | A kind of automobile exhaust silencing means | |
| CN202690183U (en) | Rear silencer assembly | |
| CN208040484U (en) | Small-sized passenger train composite muffler | |
| CN203267897U (en) | Gas vehicle leakage warning device | |
| CN203488235U (en) | Vehicle silencer | |
| CN220522652U (en) | Three-cavity silencer for automobile exhaust pipe | |
| CN211950643U (en) | Tail gas pipe and engine tail gas after-treatment system | |
| CN2475836Y (en) | Natural gas exhaust silencer for engine | |
| CN205417153U (en) | Air brake valve sound -attenuating structure that exhausts | |
| CN206338112U (en) | A kind of automobile exhaust pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4K | Annulment or lapse of a utility model due to non-payment of fees |