KR19980048452A - Cylinder Identification and Reference Angle Signal Generation Method for Six-cylinder Engine Control Systems - Google Patents
Cylinder Identification and Reference Angle Signal Generation Method for Six-cylinder Engine Control Systems Download PDFInfo
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- KR19980048452A KR19980048452A KR1019960067023A KR19960067023A KR19980048452A KR 19980048452 A KR19980048452 A KR 19980048452A KR 1019960067023 A KR1019960067023 A KR 1019960067023A KR 19960067023 A KR19960067023 A KR 19960067023A KR 19980048452 A KR19980048452 A KR 19980048452A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
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- 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 발명은 6기통 엔진제어 시스템의 기통식별 및 기준각 신호발생방법에 관한 것으로, 특히 6기통 엔진의 순차분사를 위하여 시동시에 첫번째 기통을 식별하는 실린더신호로부터 어떤 행정에 연료를 분사할 것인지 판단할 수 있는 기통식별 및 기준각 신호발생방법에 관한 것이다. 즉, 12°의 크랭크각마다 출력되는 펄스신호와, 상기 펄스신호의 폭이 기통마다 다른 실린더신호를 두어 실린더신호가 들어오는 동안 상기 펄스신호의 수를 카운트하여 기통을 식별하여 엔진의 실린더로의 연료분사를 보다 정확하게 한 것이다.The present invention relates to a cylinder identification and reference angle signal generation method of a six-cylinder engine control system, and in particular, to determine which stroke to inject fuel from a cylinder signal identifying a first cylinder at startup for sequential injection of a six-cylinder engine. It relates to a cylinder identification and reference angle signal generation method that can be. That is, a pulse signal output at every crank angle of 12 ° and a cylinder signal having a different width of the pulse signal for each cylinder are provided so that the number of the pulse signals is counted while the cylinder signal is input, and the cylinders are identified. The injection is more accurate.
Description
본 발명은 6기통 엔진제어시스템의 기통식별 및 기준각 신호발생방법에 관한 것으로, 특히 6기통 엔진의 순차분사를 위하여 시동시에 첫번째 기통을 식별하는 실린더신호로부터 어떤 행정에 연료를 분사할 것인지 판단할 수 있는 기통식별 및 기준각 신호발생방법에 관한 것이다.The present invention relates to a cylinder identification and reference angle signal generation method of a six-cylinder engine control system, and in particular, to determine which stroke to inject fuel from a cylinder signal identifying a first cylinder at startup for sequential injection of a six-cylinder engine. It relates to a cylinder identification and reference angle signal generation method that can be.
일반적으로 일정수의 기통을 갖는 자동차용 엔진은 각 기통마다 일정의 행정을 통해 순차적으로 연료를 분사하고 폭발하며, 배기행정을 거친다. 이때, 상기 다수의 기통을 갖는 엔진의 경우에는 각 기통을 식별하여 연료를 분사하는 시점이 정확하게 이루어져야 하는지가 판단되어야 한다.In general, an automobile engine having a certain number of cylinders sequentially injects and explodes fuel through a predetermined stroke for each cylinder, and passes through an exhaust stroke. In this case, in the case of the engine having a plurality of cylinders, it is necessary to identify each cylinder to determine whether the timing of injecting fuel should be made correctly.
그러나 종래에 엔진의 각 기통마다 연료를 분사하는 시점이 불규칙할 경우에는 엔진으로부터의 소음증가나 불규칙적인 행정이 이루어져 엔진에 무리가 가게되어 엔진의 수명을 단축시키는 문제가 있었다.However, when the fuel injection time is irregular for each cylinder of the engine in the related art, there is a problem of increasing the noise from the engine or an irregular stroke, causing the engine to be overwhelmed and shortening the life of the engine.
본 발명은 상기와 같은 문제를 감안하여 6기통의 순차적인 분사를 위하여 시동시에 첫번째 기통식별신호부터어떤 행정에 연료를 분사할 것인지를 판단하여 엔진의 각 기통의 식별과 기준각신호를 발생하는 방법을 제시하기 위한 것이 목적이다.In view of the above problems, the present invention determines which stroke is to be injected from the first cylinder identification signal at start-up for sequential injection of six cylinders, thereby generating identification of each cylinder of the engine and generating a reference angle signal. The purpose is to present a method.
도 1 (가)-(다)는 본 발명에 따른 6기통 엔진제어시스템의 크랭크 각마다 출력되는 펄스파형도1 (a)-(c) are pulse waveform diagrams output for each crank angle of a six-cylinder engine control system according to the present invention.
도 2 (가) 및 (나)는 본 발명에 따른 6기통 엔진제어시스템의 광 학식 디스크센서의 구성도2 (a) and (b) is a block diagram of an optical disk sensor of the six-cylinder engine control system according to the present invention
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10: 광학식센서의 디스크 11: 제 1슬릿10: disc 11 of the optical sensor: first slit
12: 제 2슬릿12: second slit
상기의 목적은 각 기통마다 고유의 코드를 부여하는 제 1 단계와, 크랭크 축의 회전시 회전각 12°에 대응하여 하나의 클럭펄스를 발생시키는 제 2 단계와, 크랭크 축의 60°회전시 마다 상기 제 2 단계에서 발생되는 클럭펄스에서 상승에지가 검출되는 가를 카운팅하는 제 3 단계와, 상기 단계에서 카운팅되어진 클럭펄스의 상승에지와 동일한 값을 고유코드로 할당받은 기통이 있는가를 검출하는 제 4 단계를 통해 기통을 식별함으로 달성될 수 있다.The above objectives include a first step of applying a unique code to each cylinder, a second step of generating one clock pulse corresponding to a rotation angle of 12 ° when the crankshaft rotates, and the first step of every 60 ° rotation of the crankshaft. A third step of counting whether the rising edge is detected in the clock pulse generated in step 2 and a fourth step of detecting whether there is a cylinder assigned with the unique code with the same value as the rising edge of the clock pulse counted in the step This can be accomplished by identifying the cylinder.
이하, 첨부한 도면에 의거하여 본 발명의 실시예를 참조하여 살펴보면 다음과 같다.Hereinafter, with reference to the embodiments of the present invention based on the accompanying drawings.
도 1과 도 2는 본 발명에 따른 6기통 엔진제어시스템의 크랭크각마다 출력되는 펄스파형도와 본 발명에 따른 6기통 엔진제어시스템의 실린더 흐름도로, 도 1(가)는 각 크랭크각으로부터 출력되는 일정의 펄스신호로 12°의 크랭크각을 가지고 출력된다. 크랭크각은 일정의 펄스상태로 계속 카운트된다.1 and 2 are a pulse waveform output for each crank angle of the six-cylinder engine control system according to the present invention and a cylinder flow chart of the six-cylinder engine control system according to the present invention, Figure 1 (a) is output from each crank angle It is output with a crank angle of 12 ° as a constant pulse signal. The crank angle continues to count in a constant pulse state.
도 1(나) 및 (다)는 각 실린더에서 발생하는 펄스신호로, 펄스신호는 구형파형태로, 구형파의 상승시점에서는 실린더의 카운트가 시작되고, 하강시점에서는 실린더의 종료와 함께 기통을 판별한다.1 (b) and (c) are pulse signals generated in each cylinder. The pulse signals are in the form of a square wave, and the cylinder count starts at the rising point of the square wave, and the cylinder is determined at the falling end with the end of the cylinder. .
즉, 각 실린더의 펄스주기는 달라지고, 각 기통으로 연료가 분사되는 시점이 다르다.That is, the pulse period of each cylinder is different, and the timing at which fuel is injected into each cylinder is different.
이는 도 2(가) 및 (나)의 광학식 디스크센서의 구성도와 같이, 크랭크각신호와 실린더는 광학식센서의 디스크(10)에 제 1슬릿(11)을 만들어 생성하거나 또는 크랭크각신호는 크랭크샤프트에 설치된 센서휠(Sensor Wheel)에서 검출하고, 실린더신호는 캠축에 설치된 노치(Notch)에서 검출할 수 있다.2 (a) and (b), the crank angle signal and the cylinder are generated by making the first slit 11 on the disc 10 of the optical sensor, or the crank angle signal is the crankshaft. The sensor wheel may be detected by a sensor wheel installed in the sensor wheel, and the cylinder signal may be detected by a notch installed in the cam shaft.
어느 경우에나 광학식센서의 고회전시에 중량편심을 해소하기 위하여 실린더신호의 배치는 도 2와 같이 균등하게 배분하여 설치한다.In any case, in order to eliminate the weight eccentricity at the high rotation of the optical sensor, the arrangement of the cylinder signals is evenly distributed as shown in FIG.
즉, 각 기통이 반시계방향으로 회전시에 1-6-3-2-5-4순으로 실린더신호는 배치되고, 이를 감지하기 위한 광학식센서의 디스크(10)의 제 1슬릿(11)은 제 1실린더에서는 참조번호 (11a)와 같고, 제 2실린더는 참조번호 (11b), 제 3실린더는 (11c), 제 4실린더는 (11d), 제 5실린더는 (11e)이고, 제 6실린더는 (11f)로 각각의 제 1슬릿(11)의 크기는 달라 각 기통의 식별과 그 기준각에 따라 발생하는 신호마다 연료를 분사하는 시점이 결정된다. 상기 광학식센서의 디스크(10)의 제 2슬릿(12)은 크랭크각신호로 일정의 각만큼씩 동일한 크기를 갖는다.That is, when each cylinder rotates in the counterclockwise direction, the cylinder signals are arranged in the order of 1-6-3-2-5-4, and the first slit 11 of the disc 10 of the optical sensor for detecting them is In the first cylinder, the same as reference numeral 11a, the second cylinder is the reference numeral 11b, the third cylinder is 11c, the fourth cylinder is 11d, the fifth cylinder is 11e, and the sixth cylinder is (11f), the size of each first slit 11 is different, and the timing of injecting fuel for each signal generated according to the identification of each cylinder and its reference angle is determined. The second slit 12 of the disk 10 of the optical sensor has the same size by a predetermined angle as a crank angle signal.
이와 같이 본 발명의 6기통 엔진제어시스템의 기통식별 및 기준각 신호발생방법은 일정각도의 크랭크각신호와 폭이 다른 기통마다 다른 실린더신호를 두어 실린더신호가 입력되는 동안에 크랭크신호를 카운트하여 기통을 식별함으로 정확한 엔진의 연료분사로 엔진의 수명을 연장할 수 있는 효과가 있다.As described above, the cylinder identification and reference angle signal generation methods of the six-cylinder engine control system of the present invention provide a cylinder signal for each cylinder having a different width and a crank angle signal at a predetermined angle to count the crank signal while the cylinder signal is input. The identification has the effect of extending the life of the engine with the correct fuel injection.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960067023A KR100303505B1 (en) | 1996-12-17 | 1996-12-17 | Method for identifying and generating reference signal of 6 cylinder engine control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960067023A KR100303505B1 (en) | 1996-12-17 | 1996-12-17 | Method for identifying and generating reference signal of 6 cylinder engine control system |
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| Publication Number | Publication Date |
|---|---|
| KR19980048452A true KR19980048452A (en) | 1998-09-15 |
| KR100303505B1 KR100303505B1 (en) | 2001-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019960067023A KR100303505B1 (en) | 1996-12-17 | 1996-12-17 | Method for identifying and generating reference signal of 6 cylinder engine control system |
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| KR (1) | KR100303505B1 (en) |
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- 1996-12-17 KR KR1019960067023A patent/KR100303505B1/en not_active IP Right Cessation
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| KR100303505B1 (en) | 2001-11-30 |
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