KR100410762B1 - Vibration measurement system and method of engine cylinder - Google Patents
Vibration measurement system and method of engine cylinder Download PDFInfo
- Publication number
- KR100410762B1 KR100410762B1 KR10-2001-0054725A KR20010054725A KR100410762B1 KR 100410762 B1 KR100410762 B1 KR 100410762B1 KR 20010054725 A KR20010054725 A KR 20010054725A KR 100410762 B1 KR100410762 B1 KR 100410762B1
- Authority
- KR
- South Korea
- Prior art keywords
- engine
- cylinder
- rpm
- drop
- measuring
- Prior art date
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
본 발명은 엔진 실린더의 진동측정시스템 및 그 방법에 관한 것으로, 엔진의 연소실을 형성하는 실린더블락의 각 연소실에서 발생되는 고온·고압 폭발에 따른 불균형을 제거하여 엔진 자체의 진동을 저감함에 그 목적이 있다.The present invention relates to a vibration measuring system and a method of an engine cylinder, and an object of the present invention is to reduce the vibration of the engine itself by eliminating an imbalance caused by the high temperature and high pressure explosion generated in each combustion chamber of the cylinder block forming the combustion chamber of the engine. have.
상기와 같은 목적을 달성하기 위한 본 발명은, 엔진의 실린더블락에 형성된 연소실에 일치하도록 실린더헤드(H)부위에 구비된 다수의 인젝터(I)를 작동시키는 조작기(10)와, 이 조작기(10)들의 분사시기를 각각 제어하는 콘트롤러(20) 및 엔진의 RPM을 측정하는 측정센서(30)로 이루어진 것을 특징으로 한다.The present invention for achieving the above object, the manipulator 10 for operating a plurality of injectors (I) provided in the cylinder head (H) to match the combustion chamber formed in the cylinder block of the engine, and this manipulator (10) The controller 20 for controlling the injection timing of each of the) and characterized in that consisting of a measuring sensor 30 for measuring the RPM of the engine.
또한, 본 발명은 엔진을 작동시킨 상태에서 엔진의 회전수(RPM)를 RPM 드롭(Drop)이 안정된 구간에서 고정시킨 다음, 연료를 분사하는 인젝터들을 순차적으로 오프(Off)하여 각각의 RPM 드롭량을 측정한 후, 이중 최대 RPM 드롭량을 기준으로 하여 각 실린더의 설정범위 만족 여부를 판단하여 불량실린더를 판단하는 것을 특징으로 한다.In addition, the present invention is fixed in the RPM drop (Drop) stable section of the engine RPM in the operating state of the engine, the fuel injection injectors sequentially off (Off) each RPM drop amount After the measurement, it is characterized by determining whether the defective cylinder by determining whether the set range of each cylinder is satisfied, based on the maximum amount of the double RPM drop.
Description
본 발명은 엔진 실린더의 진동측정시스템 및 그 방법에 관한 것으로, 보다 상세하게는 각 실린더에 연료를 공급하는 인젝터의 작동 상태를 이용한 엔진 실린더의 진동측정시스템 및 그 방법에 관한 것이다.The present invention relates to a vibration measuring system and method of the engine cylinder, and more particularly to a vibration measuring system and method of the engine cylinder using the operating state of the injector for supplying fuel to each cylinder.
일반적으로 차량의 경우 내부에서 고온·고압으로 폭발하여 회전력을 얻는내연기관을 엔진으로 사용하게 되는데, 이와 같은 엔진은 동력을 발생하는 부분으로서 실린더와 크랭크케이스, 실린더헤드, 피스톤, 크랭크축, 플라이휠, 캠축, 밸브기구등과 같이 많은 장치들로 이루어지게 된다.In general, a vehicle uses an internal combustion engine that obtains rotational force by exploding at high temperature and high pressure as an engine. Such an engine generates power as a cylinder, a crankcase, a cylinder head, a piston, a crankshaft, a flywheel, It consists of many devices such as camshaft, valve mechanism and so on.
즉, 이와 같이 여러 장치들로 이루어진 엔진은 실린더헤드부위에 구비된 밸브기구를 작동시켜 외부 공기와 인젝터에서 분사되는 연료를 실린더에 형성된 밀폐된 연소실로 공급하여 압축하면서 폭발시켜 작동되는 피스톤의 왕복운동을 크랭크케이스에 구비된 크랭크샤프트를 통해 회전운동으로 변환하여 차량의 동력을 얻게 된다.That is, the engine composed of several devices as described above operates the valve mechanism provided in the cylinder head portion to supply the fuel injected from the outside air and the injector to the closed combustion chamber formed in the cylinder, compresses it, and explodes it to operate the reciprocating motion of the piston. Is converted into rotational movement through the crankshaft provided in the crankcase to obtain the power of the vehicle.
그러나, 이와 같은 차량용 엔진은 연소실내에서의 폭발이 고속으로 일어나고 이로 인해 엔진 자체에 강한 충격이 지속적으로 가해지면서 엔진에 소음과 함께 진동이 발생되므로 이와 같은, 엔진의 진동을 저감시키기 위해 차량의 엔진룸에 장착 시 가해지는 진동에 대해 댐핑(Damping)작용을 하는 마운팅부시등을 이용하여 차체에 고정시키는 등의 다양한 방법을 이용하지만, 엔진의 진동을 발생하는 근본적인 원인 즉, 실린더내 연소실에서의 고온·고압 폭발에 의한 실린더 자체의 진동을 저감시키지 못하므로 진동 저감에는 근본적인 한계가 있게 된다.However, such a vehicle engine has an explosion in the combustion chamber at a high speed, thereby causing a strong impact on the engine itself, which causes vibration along with noise in the engine, thereby reducing the vibration of the engine. Various methods such as fixing to the vehicle body by using a mounting bush that damps the vibration applied to the room are used, but a fundamental cause of engine vibration, that is, high temperature in the combustion chamber of the cylinder · Since it does not reduce the vibration of the cylinder itself due to the high pressure explosion, there is a fundamental limitation in reducing the vibration.
이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 엔진의 연소실을 형성하는 실린더블락의 각 연소실에서 발생되는 고온·고압 폭발에 따른 불균형을 제거하여 엔진 자체의 진동을 저감함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and has an object to reduce the vibration of the engine itself by eliminating an imbalance caused by the high temperature and high pressure explosion generated in each combustion chamber of the cylinder block forming the combustion chamber of the engine. .
상기와 같은 목적을 달성하기 위한 본 발명은, 엔진의 실린더블락에 형성된 연소실에 일치하도록 실린더헤드부위에 구비된 다수의 인젝터를 작동시키는 조작기와, 이 조작기들의 분사시기를 각각 제어하는 콘트롤러 및 엔진의 RPM을 측정하는 측정센서로 이루어진 것을 특징으로 한다.The present invention for achieving the above object, the controller for operating a plurality of injectors provided in the cylinder head portion to match the combustion chamber formed in the cylinder block of the engine, the controller and the engine for controlling the injection timing of these manipulators, respectively Characterized in that consisting of a measuring sensor for measuring the RPM.
또한, 본 발명은 엔진을 작동시킨 상태에서 엔진의 회전수를 RPM 드롭이 안정된 구간에서 고정시킨 다음, 연료를 분사하는 인젝터들을 순차적으로 오프하여 각각의 RPM 드롭량을 측정한 후, 이중 최대 RPM 드롭량을 기준으로 하여 각 실린더의 설정범위 만족 여부를 판단하여 불량실린더를 판단하는 것을 특징으로 한다.In addition, the present invention is fixed in the RPM drop stable section of the engine in the engine operating state, and then injecting the fuel injecting sequentially to measure the amount of each RPM drop, double maximum RPM drop It is characterized by determining the bad cylinder by determining whether the set range of each cylinder is satisfied based on the quantity.
도 1은 본 발명에 따른 엔진 실린더의 진동측정 시스템의 구성도1 is a configuration diagram of a vibration measuring system of an engine cylinder according to the present invention
도 2는 본 발명에 따른 엔진 실린더의 진동측정방법의 순서도2 is a flow chart of the vibration measuring method of the engine cylinder according to the present invention
<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>
10 : 조작기 20 : 콘트롤러10: manipulator 20: controller
30 : 센서30: sensor
C : 실린더블락C: Cylinder Block
H : 실린더헤드 I : 인젝터H: Cylinder head I: Injector
이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 엔진 실린더의 진동측정 시스템의 구성도를 도시한 것인바, 본 발명은 엔진의 실린더블락에 형성된 연소실에 일치하도록 실린더헤드(H)부위에 구비된 다수의 인젝터(I)를 작동시키는 조작기(10)와, 이 조작기(10)들의 분사시기를 각각 제어하는 콘트롤러(20) 및 엔진의 RPM을 측정하는 측정센서(30)로 이루어진다.Figure 1 shows the configuration of the vibration measuring system of the engine cylinder according to the present invention, the present invention is a plurality of injectors (I) provided in the cylinder head (H) to match the combustion chamber formed in the cylinder block of the engine It consists of a manipulator 10 for operating the controller, a controller 20 for controlling the injection timing of the manipulator 10 and a measuring sensor 30 for measuring the RPM of the engine.
여기서, 상기 콘트롤러(20)는 차량의 엔진을 제어하는 ECU이지만 실험을 위해 별도의 프로그램을 내장해 처리할 수 있는 컴퓨터 시스템일 수도 있음은 물론이다.Here, the controller 20 is an ECU that controls the engine of the vehicle, but of course, the controller 20 may be a computer system that can process a built-in separate program for experimentation.
또한, 도 2는 본 발명에 따른 엔진 실린더의 진동측정방법의 순서도를 도시한 것인바, 본 발명은 엔진을 작동시킨 상태에서 엔진의 회전수(RPM)를 RPM 드롭(Drop)이 안정된 구간에서 고정시킨 다음, 연료를 분사하는 인젝터들을 순차적으로 오프(Off)하여 각각의 RPM 드롭량을 측정한 후, 이중 최대 RPM 드롭량을 기준으로 하여 각 실린더의 설정범위 만족 여부를 판단하여 불량실린더를 판단하게 된다.In addition, Figure 2 shows a flow chart of a method for measuring the vibration of the engine cylinder according to the present invention, the present invention is fixed to the RPM RPM (Drop) of the engine RPM in the stable state in the engine operating state After measuring the respective RPM drop amount by sequentially turning off the injectors for injecting fuel, it is determined whether or not to satisfy the set range of each cylinder based on the maximum RPM drop amount to determine the bad cylinder. do.
즉, 이를 좀더 상세히 설명하면 먼저, 엔진을 작동시킨 상태에서 엔진의 회전수(RPM)를 약 2,000으로 고정시키는 세팅단계를 수행한다.That is, when it is described in more detail, first, the setting step of fixing the engine speed (RPM) of the engine at about 2,000 is performed.
여기서, 상기 엔진의 회전수(RPM) 2,000RPM은 엔진의 RPM드롭(Drop)이 가장 안정된 구간일때의 회전수이다.Here, the engine speed (RPM) 2,000 RPM is the speed when the RPM drop of the engine is the most stable section.
이어, 상기 세팅단계에서 정해진 일정한 엔진의 회전수에서 연료를 실린더의 연소실로 분사하는 제1인젝터를 오프(Off)하여 각각의 RPM 드롭량을 측정하고 이어, 제2인젝터와 제n번째 인젝터를 순차적으로 오프하여 각각의 RPM 드롭량을 측정하는 측정단계를 수행하게 된다.Subsequently, the first injector for injecting fuel into the combustion chamber of the cylinder is turned off at a predetermined engine speed determined in the setting step, and the respective drops of RPM are measured. Then, the second injector and the nth injector are sequentially Off to perform the measurement step to measure the amount of each RPM drop.
여기서, 상기 인젝터의 오프시간은 약 3초이다.Here, the off time of the injector is about 3 seconds.
이후, 상기 측정단계를 통해 측정된 각 실린더의 RPM 드롭량 중 최대의 RPM 드롭량을 기준으로 정해 전 실린더의 RPM 드롭량을 상대값인 고유드롭값으로 산출하는 산출단계를 수행하게 된다.Subsequently, a calculation step of calculating the RPM drop amount of all cylinders as an intrinsic drop value is determined based on the maximum RPM drop amount among the RPM drop amounts of each cylinder measured through the measuring step.
여기서, 상기 고유드롭값은 해당 실린더의 RPM 드롭을 최대 RPM 드롭으로 나눈 후 백분율로 표현하기 위해 100을 곱하게 된다.Here, the eigendrop value is multiplied by 100 to express a percentage after dividing the RPM drop of the cylinder by the maximum RPM drop.
이어, 상기 산출단계에서 결정된 각 고유드롭값 중 그 백분율이 약 80%미만인 실린더를 선택하여 수리한 후 상기 전술한 세팅단계부터 순차적으로 반복하는 조정단계로 이루어진다.Subsequently, an adjustment step of sequentially repeating the above-described setting step is performed after selecting and repairing a cylinder whose percentage is less than about 80% among the unique drop values determined in the calculating step.
이상 설명한 바와 같이 본 발명에 의하면, 엔진을 작동시킨 상태에서 연료를 분사하는 인젝터들을 순차적으로 오프하면서 RPM 드롭량을 측정해 불량실린더를 정확하게 판단하게 되므로 엔진의 연소실을 형성하는 실린더블락의 각 연소실에서 발생되는 고온·고압 폭발에 따른 불균형을 제거하여 엔진 자체의 진동을 저감할 수 있는 엔진을 개발할 수 있는 효과가 있게 된다.As described above, according to the present invention, since the injectors for injecting fuel are sequentially turned off while the engine is operated, the defective cylinder is accurately determined by measuring the amount of RPM drop, and thus, in each combustion chamber of the cylinder block forming the combustion chamber of the engine. By removing the imbalance caused by the high temperature and high pressure explosion generated, it is possible to develop an engine that can reduce the vibration of the engine itself.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0054725A KR100410762B1 (en) | 2001-09-06 | 2001-09-06 | Vibration measurement system and method of engine cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0054725A KR100410762B1 (en) | 2001-09-06 | 2001-09-06 | Vibration measurement system and method of engine cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20030021448A KR20030021448A (en) | 2003-03-15 |
| KR100410762B1 true KR100410762B1 (en) | 2003-12-18 |
Family
ID=27722766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0054725A KR100410762B1 (en) | 2001-09-06 | 2001-09-06 | Vibration measurement system and method of engine cylinder |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100410762B1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6287628A (en) * | 1985-10-15 | 1987-04-22 | Mazda Motor Corp | Vibration damping device for cylinder number controlling engine |
| KR970044807A (en) * | 1995-12-30 | 1997-07-26 | 배순훈 | Automotive Engine Diagnostic |
| KR970044920A (en) * | 1995-12-23 | 1997-07-26 | 전성원 | Misfire detection device using vibration sensor |
| KR19980061952A (en) * | 1996-12-31 | 1998-10-07 | 박병재 | How to reduce engine vibration by adjusting cylinder balance of vehicle |
| KR20010059303A (en) * | 1999-12-30 | 2001-07-06 | 이계안 | Device for determining failings of cylinders |
-
2001
- 2001-09-06 KR KR10-2001-0054725A patent/KR100410762B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6287628A (en) * | 1985-10-15 | 1987-04-22 | Mazda Motor Corp | Vibration damping device for cylinder number controlling engine |
| KR970044920A (en) * | 1995-12-23 | 1997-07-26 | 전성원 | Misfire detection device using vibration sensor |
| KR970044807A (en) * | 1995-12-30 | 1997-07-26 | 배순훈 | Automotive Engine Diagnostic |
| KR19980061952A (en) * | 1996-12-31 | 1998-10-07 | 박병재 | How to reduce engine vibration by adjusting cylinder balance of vehicle |
| KR20010059303A (en) * | 1999-12-30 | 2001-07-06 | 이계안 | Device for determining failings of cylinders |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030021448A (en) | 2003-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8620561B2 (en) | Control for internal combustion engine provided with cylinder halting mechanism | |
| CN108350824B (en) | Method for combined recognition of phase differences between the strokes of a piston, an inlet valve and an outlet valve of an internal combustion engine | |
| CN108431391B (en) | Method for determining the start of injection time and the injection quantity of fuel | |
| KR101592618B1 (en) | Fuel quality dependent injection timing control for an internal combustion engine | |
| JPS6357616B2 (en) | ||
| CN108368784B (en) | Method for determining the composition of a fuel used for operating an internal combustion engine | |
| US11359563B2 (en) | Method for determining the current trimming of the intake tract of an internal combustion engine during operation | |
| WO2012165118A1 (en) | Method for controlling internal combustion engine, internal combustion engine, and vehicle equipped with same | |
| US20070235009A1 (en) | Control apparatus for direct injection type spark ignition internal combustion engine | |
| JP5949819B2 (en) | Fuel injection control device for internal combustion engine | |
| CN101451473B (en) | Engine operation method and control or adjustment device for engine | |
| KR102237016B1 (en) | Method for determining the compression ratio of an internal combustion engine during operation | |
| KR101181616B1 (en) | Method and device for controlling an internal combustion engine | |
| KR20010020197A (en) | Method for operating internal combustion engine of vehicle | |
| JPH07180590A (en) | Delay reducing device and method in fuel injection type internal combustion engine | |
| KR20090079928A (en) | Method and device for determining an operating characteristic of an injection system | |
| KR100410762B1 (en) | Vibration measurement system and method of engine cylinder | |
| US20020092499A1 (en) | Detonation sensing of crankshaft position | |
| EP2232036A1 (en) | Fuel injection control system of internal combustion engine | |
| JP5064729B2 (en) | Air quantity calculation device for internal combustion engine | |
| JP2004308651A (en) | Method of operating internal combustion engine | |
| JP4227924B2 (en) | Fuel injection control device for internal combustion engine | |
| Manivannan et al. | Development of an idle speed engine model using in-cylinder pressure data and an idle speed controller for a small capacity port fuel injected SI engine | |
| JP4803099B2 (en) | Torque estimation device for variable compression ratio engine | |
| JP7176196B2 (en) | electronic controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20061128 Year of fee payment: 4 |
|
| LAPS | Lapse due to unpaid annual fee |