KR19980043242U - Engine knock control device of vehicle - Google Patents
Engine knock control device of vehicle Download PDFInfo
- Publication number
- KR19980043242U KR19980043242U KR2019960056354U KR19960056354U KR19980043242U KR 19980043242 U KR19980043242 U KR 19980043242U KR 2019960056354 U KR2019960056354 U KR 2019960056354U KR 19960056354 U KR19960056354 U KR 19960056354U KR 19980043242 U KR19980043242 U KR 19980043242U
- Authority
- KR
- South Korea
- Prior art keywords
- engine
- explosion
- engine block
- knock sensor
- signal
- Prior art date
Links
- 238000004880 explosion Methods 0.000 claims abstract description 27
- 239000000446 fuel Substances 0.000 claims abstract description 4
- 230000000979 retarding effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
본 고안은 차량의 엔진노크 제어 장치에 관한 것으로서, 특히 소정의 연료를 연소시켜 열에너지를 기계적에너지로 변환시키는 엔진블록과; 상기 엔진블록의 이격된 위치에 설치되고 엔진 폭발시 발생되는 폭발음을 감지하여 그에 상응하는 신호를 출력하는 피에조 노크센서와; 상기 노크센서에서 출력된 엔진폭발신호를 입력받아 정상폭발신호와 비교하고 그에 대응되는 제어신호를 출력하는 제어부; 및 상기 제어부의 제어신호에 따라 상기 엔진블록의 점화시기를 지각 또는 진각시키는 점화부를 구비한다.The present invention relates to an engine knock control apparatus for a vehicle, and in particular, an engine block for converting thermal energy into mechanical energy by burning a predetermined fuel; A piezo knock sensor installed at a spaced position of the engine block and detecting an explosion sound generated when an engine explosion occurs and outputting a signal corresponding thereto; A controller which receives the engine explosion signal output from the knock sensor, compares it with a normal explosion signal, and outputs a control signal corresponding thereto; And an ignition unit for retarding or advancing the ignition timing of the engine block according to a control signal of the controller.
따라서, 본 고안에서는, 엔진블록의 이격된 위치에 피에조 노크센서를 설치하여 엔진의 폭발음을 감지함으로써, 엔진블록의 제조공정이 단순해지고, 또한 노크센서 불량시 교체가 쉬운 효과가 있다.Therefore, in the present invention, by installing the piezo-knock sensor in the spaced position of the engine block to detect the explosion sound of the engine, the manufacturing process of the engine block is simplified, and when the knock sensor is defective, it is easy to replace.
Description
본 고안은 차량의 엔진 노킹(Knocking) 상태를 감시하는 장치에 관한 것으로서, 특히 엔진블록의 이격된 위치에 피에조 노크센서를 설치하여 엔진의 폭발음을 감지하고, 상기 감지된 엔진폭발음이 노킹신호인가를 판단한 후 엔진의 점화시기를 조절하는 차량의 엔진노크 제어 장치에 관한 것이다.The present invention relates to a device for monitoring an engine knocking state of a vehicle. In particular, a piezo-knock sensor is installed at a spaced position of an engine block to detect an explosion sound of an engine, and whether the detected engine explosion sound is a knocking signal. It relates to an engine knock control apparatus of a vehicle for adjusting the ignition timing of the engine after the determination.
일반적으로, 엔진은 실린더 배열과 연소실 모양, 그리고 밸브 구동형식과 밸브 수에 따라 다양하게 분류할 수 있고, 그 방식에 따라 엔진의 파워는 서로 다르다.In general, engines can be classified into various cylinder configurations, combustion chamber shapes, valve drive types and valve numbers, and the engine power varies according to the method.
상기 엔진의 파워를 알 수 있는 엔진의 배기량은, 실린더의 내경과 피스톤이 왕복하는 행정(스트로크)의 길이로 결정되고 실린더의 단면적×스트로크의 길이×실린더의 수로 계산되며, 엔진의 크기를 보여주는 일반적인 기준이라 할 수 있으며, 배기량이 클수록 힘이 좋고 여유있는 드라이빙이 가능한 고성능 엔진이라 할 수 있다.The engine displacement, which can know the power of the engine, is determined by the inner diameter of the cylinder and the length of the stroke (stroke) that the piston reciprocates, and is calculated from the cross-sectional area of the cylinder × the length of the stroke × the number of cylinders, and shows the general size of the engine. It can be said that it is a standard, and the larger the displacement, the better the power and the high-performance engine that can afford driving.
또한, 실린더내의 피스톤이 왕복하는 행정 중 압축행정의 마지막에 연소실 안에서 공기를 어느만큼 압축할 수 있는가를 나타내는 것이 압축비이며, 일반적으로 압축비가 높을수록 연소되는 압력이 높기 때문에 높은 출력과 큰 토크를 얻을 수 있으나, 압축비가 지나치면 노킹(knocking)현상이 일어나거나 엔진이 상하기도 한다.In addition, the compression ratio indicates how much air can be compressed in the combustion chamber at the end of the compression stroke during the reciprocating stroke of the piston in the cylinder. In general, the higher the compression ratio, the higher the combustion pressure, so that a high output and a large torque can be obtained. However, if the compression ratio is excessive, knocking may occur or the engine may be damaged.
상기와 같이 엔진은 동력을 발생시키는 차량의 심장부이지만, 엔진의 노킹으로 인하여 흡입·배기밸브가 손상되거나 피스톤이 실린더에 고착되는 등의 문제점이 있었다.As described above, the engine is the heart of the vehicle generating power, but there is a problem that the intake / exhaust valve is damaged or the piston is fixed to the cylinder due to the knocking of the engine.
상기와 같은 문제점을 해결하기 위하여 종래에는, 엔진블록의 실린더에 압전센서를 접합하고, 엔진노크시 발생하는 4∼7Hz의 진동을 검출하여 엔진블록의 점화시기를 지각시킴으로서 엔진노크를 방지하였다.In order to solve the above problems, conventionally, by connecting a piezoelectric sensor to the cylinder of the engine block, by detecting the vibration of 4-7Hz generated when the engine knocks to prevent the engine ignition by retarding the ignition timing of the engine block.
상기와 같이 엔진노킹 감시장치는 엔진의 노킹을 방지하기 위한 우수한 장치이지만, 노크센서 즉, 압전센서를 엔진의 실린더 벽과 접합해서 일체형으로 제조함으로서 엔진 제조상에 공정의 어려움과 번거러움을 수반하는 문제점이 있었다.As described above, the engine knocking monitoring device is an excellent device for preventing the knocking of the engine. However, by integrating the knock sensor, that is, the piezoelectric sensor, with the cylinder wall of the engine, the engine involves a difficulty and hassle in manufacturing. there was.
본 고안의 목적은 상기와 같은 종래 기술의 문제점을 해결하기 위하여, 엔진블록의 이격된 위치에 피에조 노크센서를 설치하여 엔진의 폭발음을 감지하고, 상기 감지된 엔진폭발음이 노킹신호인가를 판단한 후 엔진의 점화시기를 조절하는 차량의 엔진노크 제어 장치를 제공하는 데 있다.An object of the present invention is to solve the problems of the prior art, by installing a piezo knock sensor in the spaced position of the engine block to detect the explosion sound of the engine, the engine after determining whether the detected engine explosion sound is a knocking signal It is to provide an engine knock control device of a vehicle for adjusting the ignition timing of the vehicle.
상기 목적을 달성하기 위하여 본 고안의 장치는, 소정의 연료를 연소시켜 열에너지를 기계적에너지로 변환시키는 엔진블록과; 상기 엔진블록의 이격된 위치에 설치되고 엔진 폭발시 발생되는 폭발음을 감지하여 그에 상응하는 신호를 출력하는 피에조 노크센서와; 상기 피에조 노크센서에서 출력된 엔진폭발신호를 입력받아 정상폭발신호와 비교하고 그에 대응되는 제어신호를 출력하는 제어부; 및 상기 제어부의 제어신호에 따라 상기 엔진블록의 점화시기를 지각 또는 진각시키는 점화부를 구비한다.In order to achieve the above object, the apparatus of the present invention comprises: an engine block for converting thermal energy into mechanical energy by burning a predetermined fuel; A piezo knock sensor installed at a spaced position of the engine block and detecting an explosion sound generated when an engine explosion occurs and outputting a signal corresponding thereto; A control unit which receives the engine explosion signal output from the piezo knock sensor, compares it with a normal explosion signal and outputs a control signal corresponding thereto; And an ignition unit for retarding or advancing the ignition timing of the engine block according to a control signal of the controller.
도 1 은 본 고안에 의한 차량의 엔진노크 제어 장치를 나타낸 블록도이다.1 is a block diagram showing an engine knock control apparatus for a vehicle according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10 : 엔진블록. 12 : 피에조 노크센서(Piezo Knock-Sensor).10: engine block. 12: Piezo Knock-Sensor.
14 : 제어부. 16 : 점화부.14: control unit. 16: ignition unit.
이하, 첨부한 도면을 참조하여 본 고안을 보다 상세하게 설명하고자 한다.Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.
도 1 은 본 고안에 의한 차량의 엔진노크 제어 장치에 관한 것으로서, 엔진블록(10)과, 피에조 노크센서(12)와, 제어부(14), 및 점화부(16)를 포함한다.1 relates to an engine knock control apparatus for a vehicle according to the present invention, and includes an engine block 10, a piezo knock sensor 12, a controller 14, and an ignition unit 16.
한편, 상기 엔진블록(10)은 소정의 연료를 연소시켜 열에너지를 기계에너지로 변환하도록 구성되어 있고, 또한 피에조 노크센서(12)는 상기 엔진블록(10)의 이격된 위치에 설치되고 엔진 폭발시 발생되는 폭발음을 감지하여 그에 상응하는 신호를 출력하도록 구성되어 있고, 또한 제어부(14)는 상기 피에조 노크센서(12)에서 출력된 엔진폭발신호를 입력받아 정상폭발신호와 비교하고 그에 대응되는 제어신호를 출력하도록 구성되어 있고, 또한 점화부(16)는 상기 제어부(14)의 제어신호에 따라 상기 엔진블록(10) 점화시기를 지각 또는 진각시키도록 구성되어 있다.On the other hand, the engine block 10 is configured to convert a thermal energy into mechanical energy by burning a predetermined fuel, and the piezo knock sensor 12 is installed at a spaced position of the engine block 10 when the engine explosion It is configured to detect the generated explosion sound and output a signal corresponding thereto, and the control unit 14 receives the engine explosion signal output from the piezo knock sensor 12 and compares it with the normal explosion signal and a control signal corresponding thereto. The ignition unit 16 is configured to retard or advance the ignition timing of the engine block 10 according to the control signal of the control unit 14.
즉, 실린더 벽(10)으로부터 이격된 위치에 설치된 압전소자를 이용한 피에조 노크센서(12)는, 엔진(10)에서 울리는 폭발음(음압)을 감지한 후 그 폭발음압에 상응한 전기신호를 발생시킨다. 또한, 제어부(14)는 상기 피에조 노크센서(12)에서 출력된 엔진폭발신호와 미리 셋팅된 정상폭발신호를 서로 비교하여 상기 엔진폭발신호가 노킹신호인지 또는 정상신호인지를 판별하고 그에 대응되는 제어신호를 점화부(16)로 출력한다.That is, the piezoelectric knock sensor 12 using the piezoelectric element installed at a position spaced apart from the cylinder wall 10 detects the explosion sound (sound pressure) ringing in the engine 10 and generates an electric signal corresponding to the explosion sound pressure. . In addition, the controller 14 compares the engine explosion signal output from the piezo knock sensor 12 and a preset normal explosion signal with each other to determine whether the engine explosion signal is a knocking signal or a normal signal, and controls corresponding thereto. The signal is output to the ignition unit 16.
또한, 상기 점화부(16)는 제어부(14)로부터 노킹관련 제어신호를 입력받으면 상기 엔진블록(10)의 점화시기를 지각시키고, 제어부(14)로부터 엔진의 노킹현상이 없는 신호가 출력되면 또다시 점화시기를 노크 한계까지 진각시키는 피드백 형태를 취하여 엔진의 효율을 최적화시키게 된다.In addition, when the ignition unit 16 receives a knock-related control signal from the control unit 14, the ignition timing of the engine block 10 is delayed, and when a signal without the knocking phenomenon of the engine is output from the control unit 14, The feedback form is then advanced to advance the ignition timing to the knock limit to optimize the engine's efficiency.
따라서, 상기와 같이 본 고안에서는, 엔진블록의 이격된 위치에 피에조 노크센서를 설치하여 엔진의 폭발음을 감지함으로써, 엔진블록의 제조공정이 단순해지고, 또한 노크센서 불량시 교체가 쉬운 잇점이 있다.Therefore, in the present invention as described above, by installing the piezo knock sensor in the spaced position of the engine block to detect the explosion sound of the engine, the manufacturing process of the engine block is simplified, and there is an advantage that it is easy to replace when the knock sensor is defective.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960056354U KR19980043242U (en) | 1996-12-24 | 1996-12-24 | Engine knock control device of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960056354U KR19980043242U (en) | 1996-12-24 | 1996-12-24 | Engine knock control device of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980043242U true KR19980043242U (en) | 1998-09-25 |
Family
ID=53995842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960056354U KR19980043242U (en) | 1996-12-24 | 1996-12-24 | Engine knock control device of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980043242U (en) |
-
1996
- 1996-12-24 KR KR2019960056354U patent/KR19980043242U/en not_active Application Discontinuation
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