KR20040003825A - Apparatus for reducing an intake noise in a vehicle - Google Patents

Apparatus for reducing an intake noise in a vehicle Download PDF

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Publication number
KR20040003825A
KR20040003825A KR1020020038640A KR20020038640A KR20040003825A KR 20040003825 A KR20040003825 A KR 20040003825A KR 1020020038640 A KR1020020038640 A KR 1020020038640A KR 20020038640 A KR20020038640 A KR 20020038640A KR 20040003825 A KR20040003825 A KR 20040003825A
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South Korea
Prior art keywords
oil
resonator
height
oil tank
sliding member
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KR1020020038640A
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Korean (ko)
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안병기
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현대자동차주식회사
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Priority to KR1020020038640A priority Critical patent/KR20040003825A/en
Publication of KR20040003825A publication Critical patent/KR20040003825A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1222—Flow throttling or guiding by using adjustable or movable elements, e.g. valves, membranes, bellows, expanding or shrinking elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

PURPOSE: An intake noise reducing apparatus is provided to reduce intake noises of a wide variety of frequencies through a single resonator. CONSTITUTION: An intake noise reducing apparatus comprises a resonator(20) communicated to an intake duct(10); an oil tank(30) filled with an oil; a communicating pipe(40) which allows for flow of oil between the resonator and the oil tank; the first sliding member which moves in a vertical direction in accordance with the height of the level of the oil in the resonator so as to change the volume of the resonator; the second sliding member which moves in a vertical direction in accordance with the height of the level of the oil in the oil tank; a potentiometer(50) for detecting the height of the level of the oil in the oil tank; an actuator(60) for moving the second sliding member in a vertical direction so as to adjust the height of the level of the oil in the oil tank; and an electronic control unit(80) for determining the reference height on the basis of the engine RPM, and driving the actuator in such a manner that the level of the oil detected by the potentiometer reaches the reference height.

Description

차량의 흡기소음 저감장치{Apparatus for reducing an intake noise in a vehicle}Apparatus for reducing an intake noise in a vehicle}

본 발명은 차량의 흡기소음 저감장치에 관한 것으로, 좀더 상세하게는 흡기소음의 주파수와 동일한 주파수를 가지면서 그 위상은 반대인 음파를 사용하여 흡기소음을 상쇄시키는 차량의 흡기소음 저감장치에 관한 것이다.The present invention relates to an intake noise reduction device for a vehicle, and more particularly, to an intake noise reduction device for a vehicle that cancels the intake noise by using sound waves having the same frequency as that of the intake noise and having a phase opposite. .

도 1은 종래 기술에 따른 차량의 흡기소음 저감장치의 개략도이다. 상기 도 1에 도시된 바와 같이, 차량에서는 외기가 흡기덕트(1)와 에어크리너(2)를 통해 엔진으로 공급되는데, 이와 같이 외기가 흡입되는 과정에서 흡기소음이 발생하게 된다. 따라서, 흡기덕트(1)의 일측에 리조네이터(3)를 설치하여, 특정 주파수의 흡입소음에 대하여 그 위상과 반대되는 주파수의 음파를 결합시켜서 상쇄시킴으로써 흡기소음을 감소시키고 있다.1 is a schematic diagram of an intake noise reduction device of a vehicle according to the prior art. As shown in FIG. 1, in the vehicle, outside air is supplied to the engine through the intake duct 1 and the air cleaner 2, and intake noise is generated in the process of inhaling the outside air. Therefore, the resonator 3 is provided on one side of the intake duct 1, and the intake noise is reduced by combining and canceling the sound waves of a frequency opposite to the phase with respect to the intake noise of a specific frequency.

그러나, 상기와 같은 종래 기술에 따른 흡기소음 저감장치는, 리조네이터가 특정 주파수의 흡기소음, 즉 특정 엔진알피엠에서 발생되는 흡기소음에 대해서는 효과적으로 작용하지만, 다른 엔진알피엠 영역에 대해서는 오히려 흡기소음을 더욱 크게 하는 역할을 할 수 있다는 문제점이 있었다. 또한, 여러 주파수의 흡기소음을 저감시키기 위해서는 각 주파수별로 레조네이터를 개발하여 장착하여야 하는 불편함이 있었다.However, the intake noise reduction device according to the prior art as described above, although the resonator effectively works on the intake noise of a specific frequency, that is, the intake noise generated in a specific engine RPM, the intake noise is further increased for other engine RPM regions. There was a problem that can act to enlarge. In addition, in order to reduce intake noise of various frequencies, it was inconvenient to develop and install a resonator for each frequency.

이에, 본 발명은 상기한 바와 같은 종래의 제 문제점을 해소하기 위해 안출된 것으로, 엔진알피엠의 증감에 따라 레조네이터의 체적을 변화시킴으로써, 여러 주파수의 흡기소음을 한 개의 레조네이터를 사용하여 저감시킬 수 있는 차량의 흡기소음 저감장치를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems of the prior art, by changing the volume of the resonator in accordance with the increase and decrease of the engine RMP, it is possible to reduce the intake noise of various frequencies by using a single resonator It is an object of the present invention to provide an intake noise reduction device for a vehicle.

상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 차량의 흡기소음 저감장치는, 흡기덕트의 일측과 연통되는 레조네이터와, 오일이 채워진 오일탱크와, 상기 레조네이터와 오일탱크 사이에 오일이 유동될 수 있도록 연통시키는 연통관과, 상기 레조네이터내의 오일높이에 따라 상하로 이동하여 레조네이터의 체적을 변화시키는 제1슬라이딩부재와, 상기 오일탱크내의 오일높이에 따라 상하로 이동하는 제2슬라이딩부재와, 상기 오일탱크내의 오일높이를 검출하는 포텐시오미터와, 상기 오일탱크내의 오일높이를 조절하기 위해 상기 제2슬라이딩부재를 상하로 이동시키는 액추에이터 및, 엔진알피엠을 바탕으로 기준높이를 정하고 상기 포텐시오미터에 의해 감지되는 오일높이가 기준높이에 도달하도록 상기 액추에이터를 구동시키는 전자제어유니트를 포함하여 구성된 것을 특징으로 한다.Intake noise reduction device for a vehicle according to the present invention for achieving the above object, the resonator in communication with one side of the intake duct, the oil tank filled with oil, the oil can flow between the resonator and the oil tank A communication tube configured to communicate with each other, a first sliding member moving up and down according to the oil height in the resonator to change the volume of the resonator, a second sliding member moving up and down according to the oil height in the oil tank, and the oil tank. A potentiometer for detecting the oil level in the oil tank, an actuator for moving the second sliding member up and down to adjust the oil height in the oil tank, and a reference height is determined based on the engine alpha and detected by the potentiometer. Electronic control to drive the actuator so that the oil level to reach the reference height Characterized in that configured to include a cut.

도 1은 종래 기술에 따른 차량의 흡기소음 저감장치의 개략도,1 is a schematic diagram of an intake noise reduction device of a vehicle according to the prior art;

도 2는 본 발명에 따른 차량의 흡기소음 저감장치의 구성도,2 is a block diagram of an intake noise reduction device of a vehicle according to the present invention;

도 3은 본 발명에 따른 차량의 흡기소음 저감장치의 동작을 설명하기 위한 순서도이다.Figure 3 is a flow chart for explaining the operation of the intake noise reduction device of a vehicle according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 흡기덕트20 : 레조네이터10: intake duct 20: resonator

30 : 오일탱크40 : 연통관30: oil tank 40: communication pipe

50 : 포텐시오미터60 : 액추에이터50: potentiometer 60: actuator

70 : 속도센서80 : 전자제어유니트70: speed sensor 80: electronic control unit

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명에 따른 차량의 흡기소음 저감장치의 구성도로서, 도 2에 도시된 본 발명에 따른 흡기소음 저감장치에서, 흡기덕트(10)의 일측에 레조네이터(20)가 관(24)으로 연통되도록 설치되어 있다. 또한, 상기 레조네이터(20)는 연통관(40)에 의해 오일탱크(30)와 연통되어 있다. 따라서, 상기 연통관(40)을 통해 상기 레조네이터(20)와 오일탱크(30) 사이에 오일(32)이 유동된다.2 is a block diagram of an intake noise reduction device for a vehicle according to the present invention. In the intake noise reduction device according to the present invention shown in FIG. 2, a resonator 20 is provided at one side of the intake duct 10. It is installed to communicate with. In addition, the resonator 20 is in communication with the oil tank 30 by the communication tube (40). Therefore, the oil 32 flows between the resonator 20 and the oil tank 30 through the communication tube 40.

또한, 상기 레조네이터(20)의 내부에는 오일높이에 따라 상하로 이동하여 레조네이터(20)의 내부체적(Vr)을 변화시키는 제1슬라이딩부재(22)가 설치되어 있고, 상기 오일탱크(30)의 내부에도 오일높이(D)에 따라 상하로 이동하는 제2슬라이딩부재(34)가 설치되어 있다.In addition, the inside of the resonator 20 is provided with a first sliding member 22 for moving up and down in accordance with the oil height to change the internal volume (Vr) of the resonator 20, the oil tank (30) A second sliding member 34 that moves up and down in accordance with the oil height D is also installed inside.

그리고, 포텐시오미터(50)는 상기 오일탱크(30)내의 오일높이(D)를 검출하여전자제어유니트(80)로 입력하도록 되어 있고, 액추에이터(60)는 상기 전자제어유니트(80)의 제어에 따라 제2슬라이딩부재(34)를 상하로 이동시킴으로써, 상기 오일탱크(30)내의 오일높이(D)를 조절하는 것으로, 바람직하게는 스텝핑모터로 구현된다.The potentiometer 50 detects the oil height D in the oil tank 30 and inputs it to the electronic control unit 80. The actuator 60 controls the electronic control unit 80. By moving the second sliding member 34 up and down in accordance with, to adjust the oil height (D) in the oil tank 30, preferably implemented by a stepping motor.

또한, 속도센서(70)는 엔진알피엠을 측정하여 상기 전자제어유니트(80)로 입력하도록 되어 있고, 상기 전자제어유니트(80)는 상기 속도센서(70)로부터 입력된 엔진알피엠을 바탕으로 미리 설정된 맵데이터를 이용하여 기준높이(Dref)를 정하고 상기 포텐시오미터(50)에 의해 감지되는 오일높이(D)가 기준높이(Dref)에 도달하도록 상기 액추에이터(60)를 구동시킨다.In addition, the speed sensor 70 measures the engine RMP and inputs it to the electronic control unit 80, and the electronic control unit 80 is preset based on the engine RMP input from the speed sensor 70. The reference height Dref is determined using map data, and the actuator 60 is driven so that the oil height D detected by the potentiometer 50 reaches the reference height Dref.

상기와 같이 구성된 본 발명에 따른 흡기소음 저감장치의 작용 및 효과를 도 3을 상세히 설명하면 다음과 같다.The operation and effects of the intake noise reduction device according to the present invention configured as described above will be described in detail with reference to FIG. 3.

도 3에 도시된 바와 같이, 단계(S1)에서는 속도센서(70)가 엔진알피엠을 감지하여 전자제어유니트(80)로 입력하고, 이어서 단계(S2)에서는 전자제어유니트(80)가 속도센서(70)로부터 입력된 엔진알피엠을 바탕으로 미리 설정된 맵데이터를 이용하여 기준높이(Dref)를 결정한다.As shown in FIG. 3, in step S1, the speed sensor 70 detects the engine ALPM and inputs the same to the electronic control unit 80. In step S2, the electronic control unit 80 receives the speed sensor ( The reference height Dref is determined using the preset map data based on the engine RMP input from 70).

이어서, 단계(S3)에서는 상기 전자제어유니트(80)가 포텐시오미터(50)에 의해 감지되는 오일높이(D)가 기준높이(Dref)와 같은지를 판단하여 같으면 상기 단계(S1)을 반복 수행하고, 기준높이(Dref)와 같지 않으면 단계(S4)를 수행한다.Subsequently, in step S3, if the electronic control unit 80 determines whether the oil height D detected by the potentiometer 50 is equal to the reference height Dref, the step S1 is repeated. If not equal to the reference height Dref, step S4 is performed.

상기 단계(S4)에서는 상기 전자제어유니트(80)가 포텐시오미터(50)에 의해 감지되는 오일높이(D)가 기준높이(Dref) 보다 큰지를 판단하여 기준높이(Dref) 보다 작으면 단계(S5)를 수행하고, 기준높이(Dref) 보다 크면 단계(S6)를 수행한다.In step S4, if the electronic control unit 80 determines that the oil height D detected by the potentiometer 50 is greater than the reference height Dref, the step S4 is smaller than the reference height Dref. If S5) is greater than the reference height Dref, step S6 is performed.

상기 단계(S5)에서는 상기 전자제어유니트(80)의 제어에 따라 엑추에이터(60)가 오일탱크(30)내의 제2슬라이딩부재(34)를 아래로 이동시켜서 오일높이(D)를 증가시키고, 상기 단계(S6)에서는 오일탱크(30)내의 제2슬라이딩부재(34)를 위로 이동시켜서 오일높이(D)를 감소시킨다.In step S5, the actuator 60 moves the second sliding member 34 in the oil tank 30 to increase the oil height D under the control of the electronic control unit 80. In step S6, the second sliding member 34 in the oil tank 30 is moved upward to reduce the oil height D.

상기와 같이 제2슬라이딩부재(34)가 이동함에 따라 레조네이터(20)내의 오일높이가 변화하고, 레조네이터(20)내의 제1슬라이딩부재(22)가 상하로 이동하여, 레조네이터(20)의 체적이 변화한다. 따라서, 레조네이터(20)에 의해 감쇠되는 흡기맥동음주파수도 변화하여, 엔진알피엠의 증감에 따라 주파수가 변화하는 흡기맥동음을 효과적으로 저감시킬 수 있다.As described above, as the second sliding member 34 moves, the oil height in the resonator 20 changes, and the first sliding member 22 in the resonator 20 moves up and down, so that the volume of the resonator 20 is increased. Change. Therefore, the intake pulsation sound frequency attenuated by the resonator 20 also changes, so that the intake pulsation sound whose frequency changes in accordance with the increase or decrease of the engine alpha can be effectively reduced.

즉, 차량의 흡기맥동음주파수(Fn)는 하기의 수학식 1과 같이 표현될 수 있다.That is, the intake pulsation sound frequency (Fn) of the vehicle can be expressed by Equation 1 below.

Fn = 엔진알피엠 ÷60 ×(차량기통수 ÷2)Fn = Engine RPM ÷ 60 × (Car Passage ÷ 2)

또한, 상기한 흡기맥동음주파수(Fn)과 레조네이터의 체적(Vr)의 관계는 하기의 수학식 2와 같이 표현될 수 있다.In addition, the relationship between the intake pulsation sound frequency (Fn) and the volume (Vr) of the resonator can be expressed as shown in Equation 2 below.

상기 수학식 2를 체적에 대해 다시 정리하면 하기의 수학식 3과 같다.If Equation 2 is rearranged with respect to the volume, Equation 3 below is obtained.

상기 수학식 2 및 3에서 Co는 소리 전파 속도(상온 340m/s), Fn은 엔진맥동음주파수, Sr은 레조네이터 관(24) 단면적, Lr은 레조네이터 관(24) 길이이다.In Equations 2 and 3, Co is the sound propagation speed (at room temperature 340 m / s), Fn is the engine pulsation sound frequency, Sr is the cross-sectional area of the resonator tube 24, Lr is the length of the resonator tube 24.

따라서, 시스템 설계사항에 따라 엔진알피엠에 따른 오일탱크(30)내의 오일높이(D)를 맵데이터로 미리 만들어 놓고, 이 맵데이터를 이용하여 엔진알피엠에 따라 오일높이를 조절하면 자동적으로 리조네이터(20)의 내부체적이 변화하여 원하는 주파수의 흡기맥동음을 제거할 수 있는 것이다.Therefore, according to the system design matters, the oil height D in the oil tank 30 according to the engine RMP is made in advance as map data, and the oil height is adjusted according to the engine RPM using this map data to automatically adjust the resonator ( The internal volume of 20) can be changed to remove the intake pulsation sound of the desired frequency.

이상에서 설명한 바와 같이 본 발명에 따르면, 엔진알피엠의 증감에 따라 레조네이터의 체적을 변화시킴으로써, 여러 주파수의 흡기소음을 한 개의 레조네이터를 사용하여 저감시킬 수 있다.As described above, according to the present invention, by changing the volume of the resonator in accordance with the increase or decrease of the engine RPM, the intake noise of various frequencies can be reduced by using one resonator.

Claims (1)

흡기덕트의 일측과 연통되는 레조네이터와, 오일이 채워진 오일탱크와, 상기 레조네이터와 오일탱크 사이에 오일이 유동될 수 있도록 연통시키는 연통관과, 상기 레조네이터내의 오일높이에 따라 상하로 이동하여 레조네이터의 체적을 변화시키는 제1슬라이딩부재와, 상기 오일탱크내의 오일높이에 따라 상하로 이동하는 제2슬라이딩부재와, 상기 오일탱크내의 오일높이를 검출하는 포텐시오미터와, 상기 오일탱크내의 오일높이를 조절하기 위해 상기 제2슬라이딩부재를 상하로 이동시키는 액추에이터 및, 엔진알피엠을 바탕으로 기준높이를 정하고 상기 포텐시오미터에 의해 감지되는 오일높이가 기준높이에 도달하도록 상기 액추에이터를 구동시키는 전자제어유니트를 포함하여 구성된 것을 특징으로 하는 차량의 흡기소음 저감장치.A resonator in communication with one side of the intake duct, an oil tank filled with oil, a communication tube communicating oil so that the oil flows between the resonator and the oil tank, and the volume of the resonator is moved up and down according to the oil height in the resonator. A first sliding member for changing, a second sliding member moving up and down according to the oil height in the oil tank, a potentiometer for detecting the oil level in the oil tank, and an oil level in the oil tank. An actuator for moving the second sliding member up and down, and an electronic control unit for determining a reference height based on an engine alpha and driving the actuator so that the oil height detected by the potentiometer reaches the reference height. Intake noise reduction device for a vehicle, characterized in that.
KR1020020038640A 2002-07-04 2002-07-04 Apparatus for reducing an intake noise in a vehicle KR20040003825A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020074074A1 (en) * 2018-10-10 2020-04-16 Wärtsilä Finland Oy A generator set

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08158964A (en) * 1994-11-30 1996-06-18 Tsuchiya Mfg Co Ltd Variable resonator
KR19980051501A (en) * 1996-12-23 1998-09-15 박병재 Resonator motion control device
KR19980050684A (en) * 1996-12-21 1998-09-15 박병재 Explosive Component Tracking Resonator Device
KR19990060744A (en) * 1997-12-31 1999-07-26 정몽규 Variable Intake Noise Reduction Device
KR20010002290U (en) * 1998-12-10 2001-10-23 홍종만 Automobile Intake Noise Reduction Device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08158964A (en) * 1994-11-30 1996-06-18 Tsuchiya Mfg Co Ltd Variable resonator
KR19980050684A (en) * 1996-12-21 1998-09-15 박병재 Explosive Component Tracking Resonator Device
KR19980051501A (en) * 1996-12-23 1998-09-15 박병재 Resonator motion control device
KR19990060744A (en) * 1997-12-31 1999-07-26 정몽규 Variable Intake Noise Reduction Device
KR20010002290U (en) * 1998-12-10 2001-10-23 홍종만 Automobile Intake Noise Reduction Device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020074074A1 (en) * 2018-10-10 2020-04-16 Wärtsilä Finland Oy A generator set

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