Intake muffling system, power system and vehicle

Abstract

The utility model discloses an intake silencing system, power system and vehicle of vehicle relates to vehicle field. Intake silencing system includes: sensor, intake pipe, silencer, connecting pipe and is used for adjusting the adjusting mechanism of silencer, and sensor is used to gather the noise signal in the car, and silencer includes the resonant cavity casing, and the Helmholtz resonator is defined in the resonant cavity casing, and connecting pipe is connected between intake pipe and resonant cavity casing, and adjusting mechanism includes first adjusting assembly, and first adjusting assembly establishes on at least one of resonant cavity casing and connecting pipe, is used for adjusting the volume of resonant cavity casing, the length of connecting pipe, at least one of the pipe diameter of connecting pipe, and first adjusting assembly is electrically connected with sensor to control the action of first adjusting assembly according to the noise signal in the car. According to the utility model embodiment's intake silencing system has the self -adaptation regulation capacity, can eliminate the noise according to the noise information inside the vehicle.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, specifically to a vehicle intake muffler system, a power system, and a vehicle. Background Technology

[0002] With the rapid development of the automotive industry, people have increasingly higher demands for vehicle comfort, among which the level of in-vehicle quietness has become one of the important indicators for evaluating vehicle quality. During vehicle operation, the noise generated by the engine intake system is one of the main factors affecting the quiet environment inside the vehicle. Although some traditional intake mufflers can reduce this noise to a certain extent, they have certain limitations due to the limitations of their working principle.

[0003] Some existing mufflers employ a passive design, which uses specific physical structures to absorb or reflect sound waves to achieve noise reduction. However, this type of muffler operates within a fixed frequency band and can only effectively eliminate noise at a specific frequency or within a limited frequency range. This means that when engine operating conditions change (e.g., engine speed increases or decreases), the original noise reduction effect will be significantly reduced, failing to meet dynamically changing requirements.

[0004] Therefore, there is room for improvement in vehicle mufflers. Utility Model Content

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the first aspect of the present invention aims to provide a vehicle intake muffler system, which has adaptive adjustment capability and can eliminate noise based on noise information inside the vehicle.

[0006] The second aspect of this utility model aims to provide a power system.

[0007] The purpose of the third aspect of this utility model is to provide a vehicle.

[0008] According to a first aspect of the present invention, a vehicle intake muffler system includes: a sensor, an intake pipe, a muffler component, a connecting pipe, and an adjustment mechanism for adjusting the muffler component. The sensor is used to collect in-vehicle noise signals. The muffler component includes a resonant cavity housing defining a Helmholtz resonant cavity. The connecting pipe connects the intake pipe and the resonant cavity housing. The adjustment mechanism includes a first adjustment component disposed on at least one of the resonant cavity housing and the connecting pipe, for adjusting at least one of the volume of the resonant cavity housing, the length of the connecting pipe, and the diameter of the connecting pipe. The first adjustment component is electrically connected to the sensor to control the operation of the first adjustment component according to the in-vehicle noise signals.

[0009] According to an embodiment of the present invention, the intake noise reduction system uses sensors installed in the driver's cab to collect in-vehicle noise signals in real time, providing basic data for subsequent processing. By installing a muffler on the intake pipe and cooperating with a first adjustment component, noise in the intake pipe is eliminated. An adjustment mechanism is used to adjust at least one of the following: the volume of the resonant cavity housing, the length of the connecting pipe, and the diameter of the connecting pipe, to dynamically adjust the silencing frequency, thereby effectively eliminating various types of noise in the intake system.

[0010] According to some embodiments of the present invention, the intake muffler system includes: a first movable plate, which is movably disposed within the resonant cavity housing, wherein the portion of the resonant cavity housing located between the first movable plate and the connecting pipe constitutes the Helmholtz resonant cavity; and a first driving member, which is connected to the first movable plate to drive the first movable plate to move.

[0011] According to some embodiments of the present invention, the intake muffler system includes: a first connecting pipe section connected to the intake pipe; and a second connecting pipe section connected to the resonant cavity housing, wherein the second connecting pipe section is sleeved and connected to the first connecting pipe section; the first adjustment component includes a second driving member connected to the resonant cavity housing to drive the resonant cavity housing to move along the length direction of the connecting pipe, thereby adjusting the length of the connecting pipe.

[0012] According to some embodiments of the present invention, the intake muffler system includes multiple connecting pipes, and the first adjustment component includes switching valves disposed on at least two of the connecting pipes. The first adjustment component adjusts the pipe diameter of the connecting pipe by adjusting the number of switching valves.

[0013] In some alternative embodiments, the switching valve includes a valve plate that is movable in a direction perpendicular to the length of the connecting pipe; the first regulating assembly includes a third driving member connected to the switching valve.

[0014] According to some embodiments of the present invention, the intake muffler system further includes: a 1 / 4 wavelength tube, one end of which is connected to the intake pipe; the adjustment mechanism further includes: a second adjustment component, which is disposed on the 1 / 4 wavelength tube and is used to adjust the tube length of the 1 / 4 wavelength tube. The second adjustment component is electrically connected to the sensor to control the action of the second adjustment component according to the in-vehicle noise signal.

[0015] In some alternative embodiments, the second adjustment component includes: a second movable plate movably disposed within the quarter-wavelength tube; and a fourth drive member connected to the second movable plate to drive the second movable plate to move along the length of the quarter-wavelength tube.

[0016] According to some embodiments of the present invention, the intake muffler system comprises at least two mufflers, each of which is connected to an adjustment mechanism, and the adjustment ranges of the at least two adjustment mechanisms are independent of each other.

[0017] The intake muffler system according to some embodiments of the present invention further includes: a control unit and an actuator, wherein the control unit is electrically connected to the sensor; and the actuator is electrically connected to the control unit and the adjustment mechanism respectively, so as to drive the adjustment mechanism according to the in-vehicle noise signal.

[0018] A power system according to a second aspect of the present invention includes: an engine and an intake muffler system for a vehicle according to a first aspect of the present application, wherein the intake pipe is connected to the engine to supply air, and the regulating mechanism is electrically connected to the engine to control its operation according to the engine speed.

[0019] A vehicle according to a third aspect of the present invention includes an intake muffler system according to a first aspect of the present invention, or a power system according to a second aspect of the present invention.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the intake muffler system according to some embodiments of the present invention;

[0023] Figure 2 This is a schematic diagram of the resonant cavity housing in some embodiments of the present invention;

[0024] Figure 3 This is a cross-sectional view of the resonant cavity housing according to some embodiments of the present invention;

[0025] Figure 4 This is a cross-sectional view of the connecting pipe according to some embodiments of the present invention;

[0026] Figure 5This is a schematic diagram showing the position of the valve plate in some embodiments of this utility model;

[0027] Figure 6 This is a cross-sectional view of a Helmholtz resonator in some embodiments of the present invention;

[0028] Figure 7 This is a perspective view of a 1 / 4 wavelength tube according to some embodiments of the present invention;

[0029] Figure 8 This is a cross-sectional view of a 1 / 4 wavelength tube according to some embodiments of the present invention.

[0030] Figure label:

[0031] 1000 vehicles

[0032] Intake silencer system 100

[0033] Sensor 10

[0034] Intake pipe 20

[0035] Silencing component 30, resonant cavity housing 31, Helmholtz resonant cavity 311, 1 / 4 wavelength tube 33

[0036] Connecting pipe 40, connecting pipe section 1 41, connecting pipe section 2 42

[0037] Adjustment mechanism 50, first adjustment component 51, first movable plate 511, switch valve 514, valve plate 5141, second adjustment component 52, second movable plate 521

[0038] Control Unit 60

[0039] Actuator 70. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] In the description of this utility model, it should be understood that the terms "length," "inner," "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The following is for reference. Figures 1-8 The present invention describes an intake muffler system 100 for a vehicle according to a first aspect of the present invention.

[0044] like Figure 1 As shown, this intake muffler system 100 includes: a sensor 10 and an intake pipe 20.

[0045] Sensor 10 is installed inside vehicle 1000, and its main function is to collect in-vehicle noise signals. These signals are used for subsequent analysis and processing to determine the type and frequency of noise that needs to be eliminated. By configuring sensor 10, the adaptive noise reduction performance of intake muffler system 100 is enhanced, thereby ensuring that the system can flexibly adjust according to actual conditions and effectively cope with various types of noise.

[0046] The intake manifold 20 is a component of the car's intake system, responsible for introducing air into the engine. However, due to the airflow within the intake manifold 20, intake noise is generated, which can negatively impact the sound quality inside the vehicle.

[0047] Therefore, combining Figure 1 and Figure 3 The intake muffler system 100 of this utility model embodiment further includes: a muffler 30, a connecting pipe 40, and an adjustment mechanism 50 for adjusting the muffler 30.

[0048] See Figure 2 The noise reduction component 30 includes a resonant cavity housing 31. A Helmholtz resonant cavity 311 is defined within the resonant cavity housing 31.

[0049] The resonant cavity housing 31 is part of the silencer 30 and is used to house and define the Helmholtz resonant cavity 311.

[0050] Optionally, the resonant cavity housing 31 can be made of metal or other high-strength materials to give it better durability and corrosion resistance.

[0051] It is worth noting that the Helmholtz resonator 311 is a special acoustic structure that can generate resonance within a specific frequency range, thereby effectively absorbing and reducing noise.

[0052] Specifically, the resonant frequency of the Helmholtz resonant cavity 311 depends on its geometric parameters, such as cavity volume, neck length, and neck area. By adjusting these parameters, the resonant frequency of the cavity can be changed to match the noise frequency that needs to be reduced.

[0053] Therefore, when sound waves of different frequencies enter the Helmholtz resonant cavity 311, they will cause resonance in the cavity, consuming the energy of the sound waves, thereby achieving the effect of noise reduction.

[0054] like Figures 2-6 As shown, the connecting pipe 40 is connected between the air intake pipe 20 and the resonant cavity housing 31.

[0055] The adjustment mechanism 50 is used to adjust the parameters of the silencer 30, such as the volume of the resonant cavity, the length or diameter of the connecting pipe 40, thereby changing the silencer frequency and achieving the elimination of noise at different frequencies.

[0056] It is worth noting that the adjustment mechanism 50 can adjust any one of the following parameters individually: the volume of the Helmholtz resonator, the length of the connecting pipe 40, or its diameter. It can also adjust two or three parameters simultaneously, thereby achieving more precise noise control. For example, the adjustment mechanism 50 can adjust only the volume of the resonator to match noise at a specific frequency; or it can simultaneously adjust the length and diameter of the connecting pipe 40 to improve the noise reduction effect. Through this multi-parameter selection adjustment capability, the intake silencing system 100 of this application possesses greater adaptability and flexibility.

[0057] Optionally, combined Figure 1 The intake noise reduction system 100 also includes a control unit 60 and an actuator 70, which work together to adjust the noise reduction effect. The control unit 60 is electrically connected to the sensor 10, which is suitable for collecting in-vehicle noise signals and sending control signals to the actuator 70. The actuator 70 responds to the instructions of the control unit 60 and drives the adjustment mechanism 50 to perform noise reduction processing.

[0058] Please refer to the following. Figure 3The adjustment mechanism 50 includes a first adjustment component 51, which is disposed on at least one of the resonant cavity housing 31 and the connecting pipe 40. It is used to adjust at least one of the volume of the resonant cavity housing 31, the length of the connecting pipe 40, and the diameter of the connecting pipe 40. The first adjustment component 51 is electrically connected to the sensor 10 to control the operation of the first adjustment component 51 according to the in-vehicle noise signal.

[0059] In some specific embodiments, sensor 10 collects noise signals in the cab and transmits the signals to control unit 60. Control unit 60 analyzes the transmitted noise signals in real time to determine the frequency and sound pressure level of the target noise. Based on the analysis results, control unit 60 issues a command to the first adjustment component 51.

[0060] At this point, the first adjustment component 51 can adjust the internal volume of the resonant cavity housing 31 to precisely match the frequency of the target noise. In other instances, the first adjustment component 51 can change the length of the connecting tube 40 electrically or mechanically to cope with noise of different frequencies. In still other cases, the first adjustment component 51 achieves noise cancellation by changing the diameter of the connecting tube 40. To optimize the noise cancellation effect, the first adjustment component 51 can adjust the volume of the resonant cavity housing 31, the length of the connecting tube 40, and the diameter of the connecting tube 40 individually or simultaneously.

[0061] According to an embodiment of the present invention, the intake noise reduction system uses sensors installed in the driver's cab to collect in-vehicle noise signals in real time, providing basic data for subsequent processing. By installing a muffler on the intake pipe and cooperating with a first adjustment component, noise in the intake pipe is eliminated. An adjustment mechanism is used to adjust at least one of the following: the volume of the resonant cavity housing, the length of the connecting pipe, and the diameter of the connecting pipe, to dynamically adjust the silencing frequency, thereby effectively eliminating various types of noise in the intake system.

[0062] According to some embodiments of the present utility model, the intake muffler system 100, combined with Figure 3 , Figure 6 The first adjustment component 51 includes a first movable plate 511 and a first driving member (not shown in the figure). The first movable plate 511 is movably disposed within the resonant cavity housing 31, and the portion of the resonant cavity housing 31 located between the first movable plate 511 and the connecting pipe 40 constitutes the Helmholtz resonant cavity 311.

[0063] When the first movable plate 511 moves within the resonant cavity housing 31, the space enclosed between it and the connecting pipe 40 constitutes the Helmholtz resonant cavity 311. The volume of this resonant cavity changes with the position of the first movable plate 511, thereby achieving adjustment of the resonant frequency.

[0064] In addition, the first driving member is connected to the first movable plate 511 to drive the first movable plate 511 to move.

[0065] Here, by sending commands to the first driving component, the movement of the first movable plate 511 can be controlled, such as its direction, distance, and speed. In this way, the volume of the Helmholtz resonant cavity 311 can be dynamically adjusted according to actual needs, thereby changing its silencing frequency. This allows the intake silencing system 100 to better adapt to different noise environments and improve the NVH performance of the vehicle.

[0066] According to some embodiments of the present utility model, the intake muffler system 100, combined with Figures 3-4 The connecting pipe 40 includes a first connecting pipe section 41 and a second connecting pipe section 42. The first connecting pipe section 41 is connected to the air intake pipe 20. The second connecting pipe section 42 is connected to the resonant cavity housing 31, and the second connecting pipe section 42 is sleeved and connected to the first connecting pipe section 41.

[0067] In the above technical solution, the two parts, connecting pipe section 41 and connecting pipe section 42, work together to provide the necessary connection channel for the resonant cavity, thereby providing a physical basis for adjusting the noise reduction frequency.

[0068] Specifically, connecting pipe section 41 is directly connected to the intake pipe 20. Connecting pipe section 42 is connected to the resonant cavity housing 31, and is sleeved with connecting pipe section 41. This sleeved design not only facilitates installation and disassembly, but more importantly, it provides a certain amount of space for the movement of the resonant cavity housing 31, thereby realizing the adjustment of the length of the connecting pipe 40.

[0069] Optionally, the size and shape of the connecting pipe section 42 are matched with those of the connecting pipe section 41 to ensure good sealing and operational stability.

[0070] The first adjustment component 51 includes a second driving member (not shown) connected to the resonant cavity housing 31 to drive the resonant cavity housing 31 to move along the length direction of the connecting pipe 40, thereby adjusting the length of the connecting pipe 40.

[0071] Specifically, the second driving element is connected to the resonant cavity housing 31 and is responsible for driving the housing to move along the length of the connecting pipe 40. This movement can change the relative position between the first connecting pipe segment 41 and the second connecting pipe segment 42, thereby adjusting the overall length of the connecting pipe 40.

[0072] According to some embodiments of the present invention, the intake muffler system 100, such as Figures 3-5 As shown, there are multiple connecting pipes 40. The first adjusting component 51 includes a switching valve 514 disposed on at least two connecting pipes 40. The first adjusting component 51 adjusts the pipe diameter of the connecting pipe 40 by adjusting the number of switching valves 514 that are switched on or off.

[0073] In the above technical solution, the connecting pipe 40 serves as the channel for sound energy exchange between the resonant cavity and the intake pipe 20, and the adjustment of its pipe diameter is crucial for changing the noise reduction characteristics of the resonant cavity. To achieve this adjustment function, the first adjustment component 51 of the intake noise reduction system 100 also includes a switching valve 514.

[0074] A switching valve 514 is installed on at least two connecting pipes 40. The main function of the switching valve 514 is to control the opening and closing of the connecting pipes 40, that is, to realize the connection or isolation between the connecting pipes 40 and the resonant cavity or the air intake pipe 20. By adjusting the opening and closing state of the switching valve 514, the number of connecting pipes 40 participating in the resonance can be changed, thereby indirectly adjusting the overall "equivalent pipe diameter" of the connecting pipes 40.

[0075] Specifically, when one of the multiple connecting pipes 40, the switching valve 514 is opened, the noise reduction adjustment can be made more direct and precise.

[0076] When the switching valves 514 in multiple connecting pipes 40 are opened simultaneously, more flexible noise reduction can be achieved.

[0077] The on / off cycle of the connecting pipe 40, i.e., the equivalent pipe diameter, can be adjusted by the switching valve 514, thereby changing the resonant frequency of the resonant cavity to achieve noise reduction at different frequencies. This adjustment method has high flexibility and adaptability, and can be adjusted in real time according to different noise environments.

[0078] Therefore, by controlling the on / off state of the switching valve 514, the noise reduction performance of the resonant cavity can be optimized. For example, under specific vehicle conditions, one or more connecting pipes 40 can be selectively opened or closed, thereby matching the frequency and intensity of noise under various vehicle conditions. This adjustable connecting pipe 40 design can better adapt to different noise environments and vehicle operating conditions, thereby reducing muffler layout waste and performance deficiencies caused by improper design.

[0079] Specifically, when the control unit 60 issues a command based on the real-time acquired noise signal or the preset control strategy, the first regulating component 51 receives the command and controls the opening and closing action of the switching valve 514.

[0080] In some alternative embodiments, the switching valve 514 is located at the connecting section 41 of the connecting pipe 40. Alternatively, the switching valve 514 is located at the connecting section 42 of the connecting pipe 40.

[0081] In some such Figures 4-5 In the embodiment shown, there are three connecting pipes 40, and each connecting pipe 40 is equipped with a switching valve 514.

[0082] In some alternative embodiments, the switching valve 514 includes a valve plate 5141 that is movable in a direction perpendicular to the length direction of the connecting pipe 40. The first regulating assembly 51 includes a third actuating element (not shown) connected to the switching valve 514.

[0083] The function of valve plate 5141 is to regulate the opening and closing of connecting pipe 40, i.e., the change in pipe diameter. Valve plate 5141 is constructed to move in a direction perpendicular to the length of connecting pipe 40. This means that the movement of valve plate 5141 is not along the airflow direction inside connecting pipe 40, but perpendicular to this direction, thereby realizing the opening or closing of connecting pipe 40.

[0084] Specifically, when the valve plate 5141 moves to a certain position, it completely blocks the airflow passage in the connecting pipe 40, keeping the connecting pipe 40 in a closed state. Conversely, when the valve plate 5141 moves to another position, it allows airflow through the connecting pipe 40, keeping the connecting pipe 40 in an open state.

[0085] To enable free movement of the valve plate 5141, the intake muffler system 100 of some embodiments of this utility model introduces a third driving member. The third driving member can be a device capable of generating driving force to push the valve plate 5141 to move in the desired direction.

[0086] Optionally, the third actuating element is directly or indirectly connected to the valve plate 5141 of the switching valve 514. This connection allows the driving force generated by the third actuating element to be effectively transmitted to the valve plate 5141, thereby driving the valve plate 5141 to move.

[0087] Optionally, the third drive unit is electrically connected to the control unit 60. When the third drive unit receives a signal from the control unit 60, it starts to work and generates the required driving force. This driving force is transmitted to the valve plate 5141 through the connecting mechanism, causing the valve plate 5141 to move in a predetermined direction.

[0088] According to some embodiments of the present utility model, the intake muffler system 100, combined with Figure 1 , Figures 7-8 The silencing component 30 also includes a 1 / 4 wavelength tube 33.

[0089] As can be seen, the quarter-wavelength tube 33 is a noise-absorbing structure. The principle of the quarter-wavelength tube 33 is that when the wavelength of the noise wave is four times its tube length, the noise wave will form an anti-phase sound wave inside the tube, thereby achieving the noise-absorbing effect. In this embodiment, one end of the quarter-wavelength tube 33 is cleverly connected to the intake pipe 20 to effectively capture and process the noise generated during the intake process.

[0090] One end of the 1 / 4 wavelength tube 33 is connected to the intake pipe 20. The adjustment mechanism 50 also includes a second adjustment component 52, which is disposed on the 1 / 4 wavelength tube 33 and is used to adjust the length of the tube cavity of the 1 / 4 wavelength tube 33. The second adjustment component 52 is electrically connected to the sensor 10 to control the operation of the second adjustment component 52 according to the in-vehicle noise signal.

[0091] Specifically, one end of the quarter-wavelength tube 33 is connected to the air intake pipe 20 to achieve a noise reduction effect. The second adjustment component 52 is set on the quarter-wavelength tube 33, so that the quarter-wavelength tube 33 can be dynamically adjusted according to the actual noise situation.

[0092] The second adjustment component 52 establishes an electrical connection with the sensor 10 within the intake muffler system 100. This allows it to receive in-vehicle noise signals from the sensor 10 in real time. These noise signals are processed and converted into control commands for the second adjustment component 52. Based on these commands, the second adjustment component 52 can adjust the cavity length of the quarter-wavelength tube 33 to ensure that its silencing frequency matches the current main noise frequency inside the vehicle.

[0093] In some alternative embodiments, such as Figure 8 As shown, the second adjustment component 52 includes a second movable plate 521. The second movable plate 521 is movably disposed within the 1 / 4 wavelength tube 33.

[0094] The second movable plate 521 is a component movably disposed within the quarter-wavelength tube 33. Here, the shape and size of the second movable plate 521 are adapted to the shape and size of the cavity of the quarter-wavelength tube 33 to ensure smooth movement of the second movable plate 521 within the cavity. The function of the second movable plate 521 is to change its position within the quarter-wavelength tube 33, thereby altering the effective length of the cavity and thus adjusting the silencing frequency.

[0095] To enable the intake muffler system 100 to control the second movable plate 521, the second adjustment assembly 52 further includes a fourth driving member (not shown). The fourth driving member is connected to the second movable plate 521 to drive the second movable plate 521 to move along the length direction of the 1 / 4 wavelength tube 33.

[0096] Specifically, the fourth drive unit, acting as a power source, is closely connected to the second movable plate 521. When the intake muffler system 100 receives in-vehicle noise signals from the sensor 10, the control unit 60 analyzes these signals in real time to determine the muffler frequency that needs to be adjusted. Subsequently, the control unit 60 sends a command to the fourth drive unit to start its operation.

[0097] Upon receiving a command, the fourth driving component will drive the second movable plate 521 to move along the length of the quarter-wavelength tube 33 along a preset trajectory or path. This movement can be linear, reciprocating, or a complex motion performed according to a specific algorithm. By changing the position of the second movable plate 521 within the quarter-wavelength tube 33, the system can effectively change the length of the cavity, thereby adjusting the silencing frequency.

[0098] According to some embodiments of the present invention, the intake muffler system 100 has at least two muffler components 30, each of which is connected to an adjustment mechanism 50, and the adjustment ranges of the at least two adjustment mechanisms 50 are independent of each other.

[0099] In the above technical solution, each muffler 30 is connected to an independent adjustment mechanism 50, which means that the working state of each muffler 30 can be controlled individually. This design not only helps to improve the flexibility of the intake muffler system 100, but also enables the intake muffler system 100 to make differentiated adjustments to different mufflers 30 according to the actual noise conditions, thereby achieving a better noise reduction effect.

[0100] Furthermore, the adjustment ranges of at least two of the adjustment mechanisms 50 are independent of each other, meaning that at least two adjustment mechanisms 50 do not need to be linked. This implies that different adjustment mechanisms 50 can adjust their respective connected mufflers 30 to different degrees as needed. For example, in some cases, it may be necessary to focus on reducing noise at a specific frequency. In this case, the adjustment range of the corresponding muffler 30's adjustment mechanism 50 can be increased to effectively suppress noise at that frequency. In other cases, it may be necessary to reduce noise at multiple frequencies simultaneously. In this case, multiple adjustment mechanisms 50 can be adjusted so that each one appropriately adjusts its connected muffler 30, thereby achieving a comprehensive noise reduction effect.

[0101] According to some specific embodiments of this utility model, the intake muffler system 100 includes a control unit 60 and an actuator 70. The control unit 60 is electrically connected to the sensor 10. The actuator 70 is electrically connected to both the control unit 60 and the adjustment mechanism 50 to drive the adjustment mechanism 50 according to the in-vehicle noise signal.

[0102] Here, the control unit 60 can collect the in-vehicle noise signal collected by the sensor 10 and output the control command to the actuator 70 to drive the adjustment mechanism 50 to adjust its position or change its state, thereby realizing the dynamic adjustment of noise and improving the passenger's riding comfort.

[0103] The power system according to the second aspect of the present invention includes: an engine and an intake muffler system 100 for a vehicle according to the first aspect of the present application, wherein an intake pipe 20 is connected to the engine to supply air, and an adjustment mechanism 50 is electrically connected to the engine to control its operation according to the engine speed.

[0104] In this power system, the intake manifold 20 acts as a bridge connecting the engine and the outside world, responsible for introducing fresh air into the engine to provide the necessary oxygen for the combustion process.

[0105] The regulating mechanism 50 is electrically connected to the engine, enabling it to acquire engine speed information in real time. Based on changes in engine speed, the regulating mechanism 50 can react quickly by adjusting the muffler parameters (such as pipe length and cavity volume) to change the muffler frequency, thereby achieving precise control of intake noise.

[0106] This design not only improves the overall performance of the powertrain, but also enables the intake muffler system 100 to adapt more intelligently to different operating conditions and noise environments. Whether driving at low or high speeds, the powertrain maintains a low noise level, providing passengers with a more comfortable and quiet driving experience.

[0107] The vehicle 1000 according to a third aspect of the present invention includes an intake muffler system 100 according to a first aspect of the present invention, or a power system according to a second aspect of the present invention.

[0108] It is worth noting that the vehicle 1000 in this embodiment of the present invention can be a gasoline vehicle, a hybrid vehicle, or a range-extended vehicle, etc.

[0109] By combining the engine with the adaptive intake muffler system 100, effective control of intake noise is achieved, thereby improving the ride comfort of the vehicle 1000.

[0110] The following is for reference. Figure 1 - Figure 8 The intake muffler system 100 according to an embodiment of the present invention is described in detail with reference to a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0111] Reference Figure 1 , Figure 3 , Figure 8 The intake muffler system 100 includes: a sensor 10, an intake pipe 20, a muffler 30, a connecting pipe 40, and an adjustment mechanism 50.

[0112] Sensor 10 is used to collect noise signals inside the vehicle.

[0113] Reference Figure 1 The noise reduction component 30 includes: a resonant cavity housing 31 and a 1 / 4 wavelength tube 33.

[0114] The Helmholtz resonant cavity 311 is defined within the resonant cavity housing 31.

[0115] Reference Figures 2-6 The connecting pipe 40 is connected between the air intake pipe 20 and the resonant cavity housing 31.

[0116] Reference Figure 3 , Figure 8 The adjustment mechanism 50 includes: a first adjustment component 51 and a second adjustment component 52.

[0117] The first adjustment component 51 is mounted on the connecting pipe 40 and is electrically connected to the sensor 10.

[0118] The first adjustment component 51 includes: a first movable plate 511, a first driving component, a second driving component, a switching valve 514, and a third driving component.

[0119] The first movable plate 511 is movably disposed inside the resonant cavity housing 31, and the portion of the resonant cavity housing 31 located between the first movable plate 511 and the connecting pipe 40 constitutes the Helmholtz resonant cavity 311.

[0120] The first driving component is connected to the first movable plate 511 to drive the first movable plate 511 to move.

[0121] There are multiple connecting pipes 40, and each connecting pipe 40 includes: a first connecting pipe section 41 and a second connecting pipe section 42.

[0122] Connecting pipe section 41 is connected to the intake pipe 20, connecting pipe section 42 is connected to the resonant cavity housing 31, and connecting pipe section 42 is sleeved and connected to connecting pipe section 41.

[0123] The second driving element is connected to the resonant cavity housing 31 to drive the resonant cavity housing 31 to move along the length direction of the connecting pipe 40, thereby adjusting the length of the connecting pipe 40.

[0124] Reference Figures 3-4 The switching valve 514 is located on the three connecting pipes 40.

[0125] The switching valve 514 includes a valve plate 5141, which is movable in a direction perpendicular to the length direction of the connecting pipe 40.

[0126] The third drive unit is connected to the switching valve 514.

[0127] Reference Figures 7-8 One end of the 1 / 4 wavelength tube 33 is connected to the intake pipe 20.

[0128] The second adjustment component 52 is mounted on the quarter-wavelength tube 33 and is used to adjust the length of the tube cavity of the quarter-wavelength tube 33. The second adjustment component 52 is electrically connected to the sensor 10 to control the operation of the second adjustment component 52 according to the in-vehicle noise signal.

[0129] The second adjustment assembly 52 includes a second movable plate 521 and a fourth driving member. The second movable plate 521 is movably disposed within the quarter-wavelength tube 33.

[0130] The fourth driving member is connected to the second movable plate 521 to drive the second movable plate 521 to move along the length direction of the 1 / 4 wavelength tube 33.

[0131] Other components of the intake muffler system 100 according to embodiments of the present invention, such as the power system and vehicle 1000, as well as its operation, are known to those skilled in the art and will not be described in detail here.

[0132] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0133] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle intake muffler system, characterized in that, include: Sensor, the sensor being used to collect in-vehicle noise signals; Intake pipe; A noise-absorbing component, the noise-absorbing component including a resonant cavity housing, the resonant cavity housing defining a Helmholtz resonant cavity; A connecting pipe, wherein the connecting pipe is connected between the air intake pipe and the resonant cavity housing; An adjustment mechanism for adjusting the muffler includes a first adjustment component disposed on at least one of the resonant cavity housing and the connecting pipe, for adjusting at least one of the volume of the resonant cavity housing, the length of the connecting pipe, and the diameter of the connecting pipe. The first adjustment component is electrically connected to the sensor to control the operation of the first adjustment component according to the in-vehicle noise signal.

2. The vehicle intake muffler system according to claim 1, characterized in that, The first adjustment component includes: A first movable plate is movably disposed within the resonant cavity housing, and the portion of the resonant cavity housing located between the first movable plate and the connecting pipe constitutes the Helmholtz resonant cavity. A first driving member is connected to the first movable plate to drive the first movable plate to move.

3. The vehicle intake muffler system according to claim 1, characterized in that, The connecting pipe includes: A connecting pipe section is connected to the intake pipe; A second connecting pipe section is connected to the resonant cavity housing, and the second connecting pipe section is sleeved and connected to the first connecting pipe section. The first adjustment component includes a second driving member connected to the resonant cavity housing to drive the resonant cavity housing to move along the length direction of the connecting tube, thereby adjusting the length of the connecting tube.

4. The vehicle intake muffler system according to claim 1, characterized in that, There are multiple connecting pipes, and the first adjusting component includes a switching valve disposed on at least two of the connecting pipes. The first adjusting component adjusts the pipe diameter by adjusting the number of switching valves that are open or closed.

5. The vehicle intake muffler system according to claim 4, characterized in that, The switching valve includes a valve plate that is movable in a direction perpendicular to the length direction of the connecting pipe; The first regulating component includes a third driving element connected to the switching valve.

6. The vehicle intake muffler system according to claim 1, characterized in that, The muffler also includes a 1 / 4 wavelength tube, one end of which is connected to the air intake pipe; The adjustment mechanism further includes a second adjustment component, which is disposed on the quarter-wavelength tube and is used to adjust the tube length of the quarter-wavelength tube. The second adjustment component is electrically connected to the sensor to control the action of the second adjustment component according to the in-vehicle noise signal.

7. The vehicle intake muffler system according to claim 6, characterized in that, The second adjustment component includes: The second movable plate is movably disposed inside the 1 / 4 wavelength tube; A fourth driving member is connected to the second movable plate to drive the second movable plate to move along the length direction of the 1 / 4 wavelength tube.

8. The vehicle intake muffler system according to any one of claims 1-7, characterized in that, There are at least two silencing components, each of which is connected to an adjustment mechanism, and the adjustment ranges of the at least two adjustment mechanisms are independent of each other.

9. The vehicle intake muffler system according to any one of claims 1-7, characterized in that, Also includes: The control unit is electrically connected to the sensor; An actuator is electrically connected to both the control unit and the adjustment mechanism to drive the adjustment mechanism based on the in-vehicle noise signal.

10. A power system, characterized in that, include: engine; The vehicle intake muffler system according to any one of claims 1-9, wherein the intake pipe is connected to the engine to supply air, and the regulating mechanism is electrically connected to the engine to control its operation according to the engine speed.

11. A vehicle, characterized in that, This includes the intake muffler system of the vehicle according to any one of claims 1-9, or the power system according to claim 10.

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