KR100783951B1 - Air intake system in vehicle - Google Patents

Air intake system in vehicle Download PDF

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Publication number
KR100783951B1
KR100783951B1 KR1020060127543A KR20060127543A KR100783951B1 KR 100783951 B1 KR100783951 B1 KR 100783951B1 KR 1020060127543 A KR1020060127543 A KR 1020060127543A KR 20060127543 A KR20060127543 A KR 20060127543A KR 100783951 B1 KR100783951 B1 KR 100783951B1
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KR
South Korea
Prior art keywords
vehicle
air inlet
air
resonator
engine
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KR1020060127543A
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Korean (ko)
Inventor
도중석
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기아자동차주식회사
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Priority to KR1020060127543A priority Critical patent/KR100783951B1/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
    • F02M35/1255—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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • 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
    • F02M35/14—Combined air cleaners and silencers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

An air intake system is provided to improve the fuel efficiency by inducing air to an engine without letting air passing through a resonator at the time of gradual increase of acceleration or at the time of driving the vehicle with a constant speed while intake air is passing through a resonator for noise damping at the time of rapid acceleration and rapid start. An air intake system capable of inducing air to an engine by by-passing a resonator includes an air intake duct(1) having a first air inlet(1a) lengthening the length of an air intake passage and a second air inlet(1b) shortening the length of an air intake passage, a resonator(2) connected to the first air inlet, a valve(3) hinged in an air inlet duct to open the first air inlet or the second air inlet, and a control system to control the valve by monitoring operating conditions.

Description

차량의 흡기 시스템{Air intake system in vehicle}Air intake system in vehicle

도 1은 종래 기술에 따른 흡기 시스템의 개략도,1 is a schematic diagram of an intake system according to the prior art,

도 2는 본 발명에 따른 흡기 시스템의 차량의 정속 혹은 완만한 가속 운행시의 작동 상태도,2 is an operating state diagram during constant speed or gentle acceleration of the vehicle of the intake system according to the present invention;

도 3은 본 발명에 따른 흡기 시스템의 급가속시의 작동 상태도이다.3 is an operational state diagram during rapid acceleration of the intake system according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1-흡기덕트 2-공명기1-intake duct 2-resonator

3-개폐밸브 4-액츄에이터3-opening and closing valve 4-actuator

5-차속센서 6-엔진 회전수센서5-vehicle speed sensor 6-engine speed sensor

7-가속페달센서7-Acceleration Pedal Sensor

본 발명은 차량의 흡기 시스템에 관한 것으로, 특히 차량이 완만한 가속 혹은 정속 주행을 할 때에는 외각 공명기를 거치지 않고 엔진으로 유입되게 한 차량의 흡기 시스템에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake system of a vehicle, and more particularly, to an intake system of a vehicle in which the vehicle is introduced into an engine without passing through an external resonator when the vehicle accelerates or runs at a constant speed.

종래 차량의 흡기 시스템은 외기가 유입되는 흡기덕트와, 이 흡기덕트를 통 해 유입되는 외기의 소음을 저감시키기 위해 상기 흡기덕트에 연결된 공명기, 상기 흡기덕트를 통해 유입되는 외기에 포함된 이물질을 걸러주는 에어크리너 등을 구비하고 있다.Conventionally, the intake system of a vehicle filters out an intake duct into which outside air is introduced, a resonator connected to the intake duct, and foreign substances introduced through the intake duct to reduce noise of outside air introduced through the intake duct. The state is equipped with an air cleaner.

도 1에는 상기와 같은 종래의 공명기와 흡기덕트의 구성이 개략적으로 도시되어 있는 바, 즉 흡기덕트(1)에 소정 체적을 가진 공명기(2)가 연통되게 연결되어, 상기 흡기덕트를 통해 유입되는 외기의 흡기소음을 상기 공명기가 저감시키게 된다.1 schematically shows the configuration of the conventional resonator and the intake duct as described above, that is, a resonator 2 having a predetermined volume is connected to the intake duct 1 so as to communicate with the intake duct. Intake noise of outside air is reduced by the resonator.

상기 공명기는 통상적으로 헬름홀츠 공명기를 사용하고 있는 바, 차종에 따라서는 흡기소음의 저감이 필요한 주파수 대역에 따라 다수개의 공명기를 장착하여 사용하고 있었다.Since the resonators generally use Helmholtz resonators, a plurality of resonators have been used in accordance with a frequency band in which intake noise is required depending on the vehicle model.

그런데 상기와 같은 종래의 공명기는 차량의 주행 상태에 무관하게 항상 흡기덕트와 연통되게 연결되어 있어서 상기 공명기에 의한 흡기유입저항으로 인해 엔진의 연비 측면에서 불리하게 작용한다고 하는 결점이 있었다.However, the conventional resonator is connected to the intake duct at all times irrespective of the driving state of the vehicle, and thus has a drawback in that the resonator has an adverse effect on the fuel economy of the engine due to the intake resistance of the resonator.

이에 본 발명은 상기한 사정을 감안하여 안출된 것으로, 차량이 급가속 혹은 급발진 할 때에는 외기의 유입경로에 공명기를 설치하여 흡기소음을 저감시키는 반면에 차량이 완만하게 가속하가나 정속 주행을 할 때에는 외기가 공명기를 통하지 않고 엔진으로 직접 유입되게 하여 엔진의 연비를 향상시킬 수 있도록 한 차량의 흡기 시스템을 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, and when the vehicle accelerates or accelerates, a resonator is installed in the inflow path of the outside air to reduce intake noise, while the vehicle accelerates slowly or runs at a constant speed. It is an object of the present invention to provide an intake system of a vehicle that allows the outside air to flow directly into the engine without passing through a resonator to improve the fuel efficiency of the engine.

상기와 같은 목적을 달성하기 위한 본 발명은, 엔진으로 유입되는 외기의 유 입경로를 길게 하는 제1공기유입구와 외기의 유입경로를 짧게 하는 제2공기유입구를 구비한 흡기덕트와, 상기 제1공기유입구와 연통하도록 상기 흡기덕트에 설치된 공명기, 상기 제1,2공기유입구 중에 어느 하나의 공기유입구만 개방하도록 상기 흡기덕트의 내부에 회전가능하게 설치된 개폐밸브 및, 차량의 주행상태를 감지해서 상기 개폐밸브를 제어하는 제어수단을 구비하고 있다.The present invention for achieving the above object, the intake duct having a first air inlet for lengthening the inlet path of the outside air flowing into the engine and a second air inlet for shortening the inlet path of the outside air, and the first A resonator installed in the intake duct so as to communicate with an air inlet, an opening / closing valve rotatably installed in the intake duct so as to open only one of the first and second air inlets, and detecting a driving state of the vehicle Control means for controlling the on-off valve is provided.

바람직하기로는 상기 공명기가 상기 제1공기유입구와 제2공기유입구 사이의 흡기덕트에 연통되게 설치되고, 상기 개폐밸브가 상기 공명기와 상기 제2공기유입구 사이의 흡기덕트의 내부에 회전가능하게 설치되며, 상기 제어수단이 상기 개폐밸브를 회전시키는 모터와 이 모터의 구동을 제어하는 엔지제어유니트를 구비한 것을 특징으로 한다.Preferably, the resonator is installed in communication with the intake duct between the first air inlet and the second air inlet, and the open / close valve is rotatably installed in the intake duct between the resonator and the second air inlet. And an engine control unit for controlling the driving of the motor and the motor for rotating the on / off valve.

그리고 상기 엔진제어유니트에는 차속을 감지하는 차속센서와 엔진의 회전수를 감지하는 엔진 회전수센서 및 가속페달의 조작상태를 감지하는 가속페달센서가 각각 접속되어, 상기 엔진제어유니트가 상기 센서들로부터 입력되는 감지신호를 근거로 차량의 주행상태를 판단하고, 차량이 완만하게 가속되거나 정속 주행할 때에는 상기 제2공기유입구만을 개방하는 반면에 차량이 급가속 혹은 급발진 할 때에는 상기 제1공기유입구만을 개방하도록 상기 개폐밸브를 제어하는 것을 특징으로 한다.And the engine control unit is connected to the vehicle speed sensor for detecting the vehicle speed, the engine speed sensor for detecting the rotational speed of the engine and the accelerator pedal sensor for detecting the operation state of the accelerator pedal, respectively, the engine control unit from the sensors The driving state of the vehicle is determined based on the input detection signal, and only the second air inlet is opened when the vehicle is slowly accelerated or driven at constant speed, whereas only the first air inlet is opened when the vehicle is accelerated or started suddenly. The on-off valve is characterized in that to control.

이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2에는 차량이 완만하게 가속하거나 혹은 정속 주행을 할 때의 본 발명에 따른 흡기 시스템의 작동 상태가 도시되어 있는 바, 즉 흡기덕트(1)에 외기가 유입되는 제1공기유입구(1a)가 형성되고, 상기 공기유입구(1a)와 연통하도록 소정 체적을 가진 공명기(2)가 상기 흡기덕트(1)에 연결되며, 상기 흡기덕트(1)에는 상기 공명기(2)를 통하지 않고 도시되지 않은 에어크리너로 직접 외기가 유입되게 하여 외기의 유입 경로를 짧게 하는 제2공기유입구(1b)가 형성되어 있다.2 shows an operating state of the intake system according to the present invention when the vehicle accelerates slowly or runs at a constant speed. That is, the first air inlet 1a into which outside air flows into the intake duct 1 is shown. A resonator 2 having a predetermined volume so as to communicate with the air inlet 1a, and connected to the intake duct 1, wherein the intake duct 1 is not shown without passing through the resonator 2. The second air inlet 1b is formed so that the outside air flows directly into the cleaner to shorten the inflow path of the outside air.

또한 상기 흡기덕트(1)에는 상기 제2공기유입구와 인접한 부위에 흡기덕트(1)를 개폐하는 개폐밸브(3)가 회전가능하게 내장되고, 상기 개폐밸브(3)는 예컨대 모터와 같은 액츄에이터(4)에 의해 회전하도록 액츄에이터(4)와 연결되어 있다.In addition, the intake duct (1) is rotatably embedded in the opening and closing valve (3) for opening and closing the intake duct (1) in a portion adjacent to the second air inlet, the open / close valve (3), for example, an actuator (such as a motor) It is connected to the actuator 4 to rotate by 4).

상기 액츄에이터의 구동을 제어하기 위해 액츄에이터는 엔진제어유니트(ECU)의 출력단에 접속되고, 상기 엔진제어유니트의 입력단에는 차속을 감지하는 차속센서(5)와, 엔진의 회전수를 감지하는 엔진 회전수센서(6) 및 가속페달의 조작상태를 감지하는 가속페달센서(7)가 각각 접속되어 있다. 이에 따라 차량의 주행중에 차속과 엔진의 회전수 및 가속페달의 조작상태가 각각 센서를 매개로 감지되어서 엔진제어유니트에 입력되게 된다.An actuator is connected to an output end of an engine control unit (ECU) for controlling the driving of the actuator, and an input speed of the engine control unit is a vehicle speed sensor 5 for detecting a vehicle speed, and an engine speed for detecting an engine speed. The accelerator pedal sensor 7 which detects the sensor 6 and the operation state of an accelerator pedal is connected, respectively. Accordingly, the vehicle speed, the number of revolutions of the engine, and the operation state of the accelerator pedal are sensed through the sensor and input to the engine control unit while the vehicle is running.

도 2에는 차량이 완만하게 가속하거나 정속 주행할 때의 흡기시스템의 작동 상태가 도시되어 있는 바, 즉 차량이 완만하게 가속하거나 정속 주행할 때에는 흡기소음이 작으므로 공명기를 사용하여 흡기소음을 줄이는 것 보다는 엔진의 연비를 향상시키는 것이 바람직하기 때문에 상기 엔진제어유니트가 상기 각 센서들에 의해 감지되어 입력되는 감지신호를 근거로 차량의 완만한 가속 혹은 정속 주행을 판단한 다음에 상기 액츄에이터에 그에 상응하는 제어신호를 인가한다.Figure 2 shows the operating state of the intake system when the vehicle accelerates slowly or at constant speed, that is, when the vehicle accelerates slowly or at constant speed, the intake noise is small, so that the intake noise is reduced by using a resonator. Rather, it is desirable to improve the fuel economy of the engine, so that the engine control unit determines the smooth acceleration or the constant speed driving of the vehicle based on the detected signals input by the sensors, and then controls corresponding to the actuator. Apply a signal.

상기 액츄에이터는 엔진제어유니트로부터 인가되는 제어신호에 따라 작동해서 개폐밸브를 시계방향으로 회전시켜 상기 공명기와 에어크리너 사이의 흡기덕트 경로를 막아주고, 이에 따라 외기가 공명기를 거치지 않고 제2공기유입구를 통해서 엔진으로 직접 유입됨으로써, 외기의 유입경로가 짧아지면서 유입저항도 작아서 엔진의 연비를 향상시킬 수 있게 된다.The actuator operates in response to a control signal applied from an engine control unit to rotate the on / off valve clockwise to block the intake duct path between the resonator and the air cleaner, thereby allowing the outside air to open the second air inlet without passing through the resonator. Through the direct inflow through the engine, the inflow path of the outside air is shortened and the inflow resistance is small, thereby improving the fuel economy of the engine.

한편 차량이 급가속 하거나 급발진 할 때에는 흡기소음이 크기 때문에 연비보다는 흡기소음을 줄여주는 것이 바람직한 바, 즉 도 3에 도시한 바와 같이 상기 엔진제어유니트가 각 센서들에 의해 감지되어 입력되는 신호를 근거로 차량의 급가속 혹은 급발진을 감지하고, 그에 상응하는 제어신호를 상기 액츄에이터에 인가하게 된다.On the other hand, when the vehicle accelerates rapidly or rapidly starts, it is desirable to reduce the intake noise rather than fuel economy because the intake noise is large, that is, as shown in FIG. 3, the engine control unit is based on a signal detected and input by each sensor. The vehicle senses sudden acceleration or sudden start of the vehicle and applies a corresponding control signal to the actuator.

액츄에이터는 인가된 제어신호에 따라 작동하여 상기 개폐밸브를 반시계방향으로 회전시켜 상기 제2공기유입구를 막아줌으로써, 외기가 제1공기유입구만을 통해서 공명기를 거쳐 엔진으로 되므로, 흡기소음이 공명기에 의해서 저감되어 차량의 승차감을 향상시키게 된다.Actuator operates according to the applied control signal to rotate the on / off valve counterclockwise to block the second air inlet, so that outside air becomes the engine through the resonator through only the first air inlet, It is reduced to improve the riding comfort of the vehicle.

이상 설명한 바와 같이 본 발명에 따른 차량의 흡기 시스템에 의하면, 차량의 주행상태에 따라 공명기를 매개로 흡기소음을 저감시켜 차량의 승차감을 개선함과 더불어 외기의 유입경로를 짧게 하여 엔진의 연비를 향상시키는 등의 효과가 있다.As described above, according to the intake system of the vehicle according to the present invention, the intake noise is reduced through the resonator according to the driving state of the vehicle to improve the riding comfort of the vehicle and shorten the inflow path of the outside air to improve the fuel economy of the engine. It is effective to make it.

Claims (3)

엔진으로 유입되는 외기의 유입경로를 길게 하는 제1공기유입구(1a)와 외기의 유입경로를 짧게 하는 제2공기유입구(1b)를 구비한 흡기덕트(1)와, 상기 제1공기유입구와 연통하도록 상기 흡기덕트에 설치된 공명기(2), 상기 제1,2공기유입구 중에 어느 하나의 공기유입구만 개방하도록 상기 흡기덕트의 내부에 회전가능하게 설치된 개폐밸브(3) 및, 차량의 주행상태를 감지해서 상기 개폐밸브를 제어하는 제어수단을 구비한 차량의 흡기 시스템.An intake duct 1 having a first air inlet 1a for lengthening the inflow path of outside air flowing into the engine and a second air inlet 1b for shortening the inflow path of the outside air, and communicating with the first air inlet. A resonator (2) installed in the intake duct, an open / close valve (3) rotatably installed in the intake duct so as to open only one of the air inlets of the first and second air inlets, and a driving state of the vehicle And an intake system for controlling the on / off valve. 청구항 1에 있어서, 상기 공명기가 상기 제1공기유입구와 제2공기유입구 사이의 흡기덕트에 연통되게 설치되고, 상기 개폐밸브가 상기 공명기와 상기 제2공기유입구 사이의 흡기덕트의 내부에 회전가능하게 설치되며, 상기 제어수단이 상기 개폐밸브를 회전시키는 모터와 이 모터의 구동을 제어하는 엔지제어유니트를 구비한 것을 특징으로 하는 차량의 흡기 시스템.The air conditioner of claim 1, wherein the resonator is installed in communication with an intake duct between the first air inlet and the second air inlet, and the opening / closing valve is rotatably inside the intake duct between the resonator and the second air inlet. And an engine control unit for controlling the driving of the on / off valve, the control means being provided with a motor for rotating the on / off valve. 청구항 2에 있어서, 상기 엔진제어유니트에는 차속을 감지하는 차속센서와 엔진의 회전수를 감지하는 엔진 회전수센서 및 가속페달의 조작상태를 감지하는 가속페달센서가 각각 접속되어, 상기 엔진제어유니트가 상기 센서들로부터 입력되는 감지신호를 근거로 차량의 주행상태를 판단하고, 차량이 완만하게 가속되거나 정속 주행할 때에는 상기 제2공기유입구만을 개방하는 반면에 차량이 급가속 혹은 급발 진 할 때에는 상기 제1공기유입구만을 개방하도록 상기 개폐밸브를 제어하는 것을 특징으로 하는 차량의 흡기 시스템.The engine control unit of claim 2, wherein the engine control unit is connected to a vehicle speed sensor for detecting a vehicle speed, an engine speed sensor for detecting an engine speed, and an accelerator pedal sensor for detecting an operation state of an accelerator pedal, respectively. The driving state of the vehicle is determined based on the detection signals input from the sensors, and only the second air inlet is opened when the vehicle accelerates or runs at a constant speed, while the vehicle is rapidly accelerated or accelerated. The intake system of the vehicle, characterized in that for controlling the opening and closing valve to open only the air inlet.
KR1020060127543A 2006-12-14 2006-12-14 Air intake system in vehicle KR100783951B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0137188B1 (en) * 1992-03-24 1998-04-25 와다 요시히로 Engine induction system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0137188B1 (en) * 1992-03-24 1998-04-25 와다 요시히로 Engine induction system

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