KR19980043105U - Engine control device of car - Google Patents
Engine control device of car Download PDFInfo
- Publication number
- KR19980043105U KR19980043105U KR2019960056217U KR19960056217U KR19980043105U KR 19980043105 U KR19980043105 U KR 19980043105U KR 2019960056217 U KR2019960056217 U KR 2019960056217U KR 19960056217 U KR19960056217 U KR 19960056217U KR 19980043105 U KR19980043105 U KR 19980043105U
- Authority
- KR
- South Korea
- Prior art keywords
- engine
- cooling water
- water temperature
- engine control
- control
- Prior art date
Links
- 239000000498 cooling water Substances 0.000 claims abstract description 36
- 239000000446 fuel Substances 0.000 claims description 8
- 238000009529 body temperature measurement Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
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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
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0223—Cooling water temperature
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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
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0225—Intake air or mixture temperature
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)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
본 고안은 자동차의 엔진제어장치에 관한 것으로, 냉각수온측정센서가 고장났을 경우에도 제어유니트에서 엔진가동초기에 입력된 흡기온을 냉각수온으로 설정한 후, 이 냉각수온을 시점으로 하는 엔진제어 MAP에 의해 엔진을 제어하는 구조로 되어, 겨울철에서도 실제의 냉각수온에 의한 엔진제어에 근접한 엔진제어가 가능해짐으로써 실제상황에 부합하지 않은 설정냉각수온에 의한 제어에 의해 발생되던 주행중 울컥거림이나 서지현상등이 발생하지 않게 되는 효과가 있다.The present invention relates to an engine control apparatus of an automobile, and even when a cooling water temperature measuring sensor fails, an engine control map that sets the intake air temperature input to the cooling water temperature at the initial stage of engine operation in the control unit to the cooling water temperature and then uses the cooling water temperature as the starting point. The engine is controlled to control the engine, and even in winter, the engine can be controlled close to the engine control by the actual cooling water temperature. There is an effect that the back does not occur.
Description
본 고안은 자동차의 엔진제어장치에 관한 것으로, 특히 냉각수온측정센서가 고장날 경우 흡기온측정센서에서 입력된 공기의 초기온도를 기준으로 하여 엔진을 제어함으로써 겨울철에도 적절한 엔진제어가 가능하게 됨으로써 엔진의 시동성과 주행성이 향상되도록 된 자동차의 엔진제어장치에 관한 것이다.The present invention relates to an engine control apparatus of an automobile. In particular, when the cooling water temperature measuring sensor fails, the engine is controlled based on the initial temperature of the air input from the intake air temperature measuring sensor, so that the engine can be controlled appropriately even in winter. The present invention relates to an engine control apparatus for a vehicle in which startability and running performance are improved.
주지된 바와 같이 엔진은 공기와 연료의 혼합기를 전기점화에 의해 연소시켜 글 결과로 얻어지는 열에너지를 출력으로 변환시켜 운전된다. 엔진의 출력은 운전자가 요구하는 바대로 조절되어야 하며, 이 요구되는 출력은 각각의 운전상황에 따라 다르다. 따라서 각각의 운전상황에 적절하게 엔진의 출력을 조절하기 위해서는 그에 상응하는 적절한 혼합기와 점화를 가능하게 하는 제어장치가 필요하게 된다. 이러한 필요에 의해서 현재 운전되고 있는 대부분의 자동차에는 엔진제어장치가 장착되어 있다.As is well known, the engine is operated by burning a mixture of air and fuel by electric ignition to convert the resulting thermal energy into an output. The output of the engine must be adjusted as required by the driver, and this required power is specific to each operating situation. Therefore, in order to adjust the output of the engine appropriately for each operating situation, a corresponding appropriate mixer and control device for enabling ignition are required. Due to this need, most automobiles currently being operated are equipped with engine control devices.
한편, 자동차의 엔진제어장치는 냉각수온측정센서와 차속센서 및 흡기온센서 등의 정보수집수단과, 이 접보수집수단으로 부터 엔진의 제어에 필요한 각종 정보를 입력받아 이 정보에 따라 공기와 연료의 혼합비 및 점화시기 등을 조절하는 전자제어유니트와, 이 전자제어유니트의 제어에 따라 공기나 연료의 흐름 및 양을 제어하는 각종 밸브와 점화플러그에 스파크를 발생시키는 단속기 등의 제어작동실행 수단으로 구성되어 임의의 외적조건에 대하여 항상 최적의 출력을 얻을 수 있도록 엔진을 제어할 수 있도록 되어 있었다.On the other hand, the engine control device of a vehicle receives information collecting means such as a cooling water temperature sensor, a vehicle speed sensor, and an intake air temperature sensor, and receives various kinds of information necessary for controlling the engine from the contacting and collecting means. Electronic control unit for adjusting the mixing ratio and ignition timing, various valves for controlling the flow and quantity of air or fuel according to the control of this electronic control unit, and control operation execution means such as an interrupter for generating sparks in the spark plug. Therefore, the engine can be controlled so that the optimum power is always obtained for any external condition.
한편, 상기 엔진을 제어하는데 있어서 가장 중요한 조건이 되는 인자중의 하나는 냉각수의 온도와 흡기온의 온도라 할 수 있으며, 종래의 엔진제어장치에 있어서도 상기 냉각수온측정센서와 흡기온측정센서로 부터 입력된 현재의 냉각수 및 흡기온을 기준으로 그 상태에서 최적의 출력을 내기 위해 공연비 및 점화시기를 조절하였다.On the other hand, one of the most important conditions for controlling the engine may be the temperature of the cooling water and the temperature of the intake air, and in the conventional engine control device from the cooling water temperature measuring sensor and the intake air temperature measuring sensor The air-fuel ratio and the ignition timing were adjusted to provide the optimum output at that state based on the current coolant and intake temperature.
그런데, 상기 냉각수온측정센서가 고장날 경우나 냉각수온측정센서와 전자제어유니트를 연결하는 전선이 단선되어 전자제어유니트에 냉각수온에 관한 정보가 입력되지 않을 때 종래의 엔진제어장치에서는 전자제어유니트가 냉각수온을 상온, 통상적으로 20℃ 정도로 가정하고, 이 온도를 엔진가동초기의 냉각수온으로 설정하여 반복실험을 통하여 작성된 엔진제어순서(이하 MAP이라 칭함)에 의해 엔진을 제어하였었다.However, when the cooling water temperature measuring sensor fails or the wire connecting the cooling water temperature measuring sensor and the electronic control unit is disconnected and no information regarding the cooling water temperature is input to the electronic control unit, the electronic control unit is a conventional engine control apparatus. The cooling water temperature was assumed to be about room temperature, usually about 20 ° C, and this temperature was set to the cooling water temperature of the initial engine operation, and the engine was controlled by an engine control procedure (hereinafter referred to as MAP) created through repeated experiments.
따라서, 실제의 냉각수온이 설정 냉각수온과 크게 차이가 나게 되는 겨울철에는 적절한 엔진의 제어가 불가능하므로 주행중 울컥거림이나 서지(surge)현상이 일어나고 특히 자동변속기가 탑재된 차량의 경우 변속쇼크가 발생하게 되는 문제점이 있었다.Therefore, in the winter when the actual cooling water temperature is significantly different from the set cooling water temperature, it is impossible to control the engine properly. Therefore, a snarl or surge occurs while driving. There was a problem.
도 1은 본 고안에 따른 자동차의 엔진제어장치의 작동순서도이다.1 is a flow chart of the operation of the engine control apparatus of a vehicle according to the present invention.
이에 본 고안은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 냉각수온측정센서로 부터 냉각수온에 관한 정보가 입력되지 않을 때 무조건 설정된 온도에 의해 엔진을 제어하는 것이 아니고, 실제상황에 맞는 엔진가동초기의 냉각수온을 전자제어유니트가 설정할 수 있게 됨으로써 냉각수온측정센서가 고장난 경우에도 냉각수온의 변화에 따른 적절한 엔진제어가 가능해지도록 된 자동차의 엔진제어장치를 제공함에 그 목적이 있다.Therefore, the present invention was devised to solve the above problems, and when the information about the coolant temperature is not input from the coolant temperature measurement sensor, the engine is not controlled by the set temperature unconditionally, and the engine is operated according to the actual situation. It is an object of the present invention to provide an engine control apparatus of a vehicle in which an electronic control unit can set an initial cooling water temperature so that an appropriate engine control according to a change in cooling water temperature is possible even when a cooling water temperature measuring sensor fails.
상기와 같은 목적을 달성하기 위한 본 고안은, 정보수집수단과 전자제어유니트 및 제어작동실행수단으로 이루어진 엔진제어장치에 있어서, 상기 전자제어유니트가 정보수집수단중 냉각수온측정센서가 고장났을 경우에 엔진가동초기시점에서 흡기온측정센서로 부터 입력된 흡기온을 초기의 냉각수온으로 가정하고, 이후 이 온도를 시점으로 하는 엔진제어MAP에 의해 엔진을 제어하도록 된 구조로 되어 있다.The present invention for achieving the above object, in the engine control device comprising an information collecting means, an electronic control unit and a control operation execution means, the electronic control unit when the cooling water temperature measuring sensor of the information collecting means has failed It is assumed that the intake air temperature input from the intake air temperature measurement sensor at the initial start of the engine is assumed to be the initial cooling water temperature, and then the engine is controlled by the engine control MAP at this time.
따라서, 냉각수온의 입력이 불가하여 냉각수온의 실제 변화에 따른 엔진제어가 불가능할때에도 외기의 온도를 초기의 냉각수온으로 가정한 후, 엔진제어MAP에 의해 엔진작동을 제어함으로써 실제의 냉각수온변화에 따른 엔진제어와 근접한 엔진제어를 할 수 있게 되었다.Therefore, even when the engine temperature cannot be controlled due to the actual change of the coolant temperature because the input of the coolant temperature is impossible, it is assumed that the temperature of the outside air is the initial coolant temperature, and then the engine operation is controlled by the engine control MAP. The engine control close to the engine control can be achieved.
이하 본 고안을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안에 따른 자동차의 엔진제어장치의 작동순서도로서, 본 고안은 냉각수온측정센서와 차속센서 및 흡기온센서 등의 정보수집수단과, 이 정보수집수단으로 부터 엔진의 제어에 필요한 각종 정보를 입력받아 이 정보에 따라 공기와 연료의 혼합비 및 점화시기 등을 조절하는 전자제어유니트와, 이 전자제어유니트의 제어에 따라 공기나 연료의 흐름 및 양을 제어하는 각종 밸브와 점화플러그에 스파크를 발생시키는 단속기 등의 제어작동실행수단으로 구성되어 임의의 외적조건에 대하여 항상 최적의 출력을 얻을 수 있도록 엔진을 제어할 수 있도록 된 엔진제어장치에 있어서, 상기 전자제어유니트는 엔진이 시동된 후 일정시간 대략 5초 정도의 시간이 경과한 후에도 냉각수온측정센서로 부터 냉각수온에 관한 정보가 전달되지 않으면, 냉각수온측정센서가 고정났거나 연결회선이 단선된 것으로 보고, 엔진시동후 처음 입력된 흡기온측정센서의 흡기온을 초기냉각수온으로 설정한 후, 이 냉각수온을 시점으로 하는 엔진제어MAP에 의해 엔진을 제어하도록 된 구조로 되어 있다.1 is an operation flowchart of an engine control apparatus for a vehicle according to the present invention, and the present invention provides information collecting means such as a cooling water temperature sensor, a vehicle speed sensor, and an intake air temperature sensor, and various information necessary for controlling the engine from the information collecting means. Electronic control unit that receives the information and adjusts the mixing ratio and ignition timing of air and fuel according to this information, and various valves and spark plugs that control the flow and quantity of air or fuel according to the control of this electronic control unit. An engine control device configured to execute control operation means such as a chopper to generate an engine, so that the engine can be controlled to always obtain an optimum output for any external condition, wherein the electronic control unit is configured after the engine is started. If the cooling water temperature information is not transmitted from the cooling water temperature sensor after about 5 seconds have elapsed, After the water temperature measuring sensor is fixed or the connection line is disconnected, the intake temperature of the intake temperature measuring sensor first inputted after the engine is set to the initial cooling water temperature, and then the engine is controlled by the engine control MAP at this point. It is structured to control.
여기서, 상기 엔진제어MAP은 최적 엔진제어를 위해 냉각수온의 변화에 따라 조절되어야 할 공연비와 점화시기를 반복실험을 통하여 각 온도단계별로 측정하여 작성된 것이다.Here, the engine control MAP is prepared by measuring the air-fuel ratio and the ignition timing to be adjusted according to the change in the cooling water temperature for each temperature step through the repeated experiments for optimum engine control.
따라서, 상기 전자제어유니트에서는 초기의 냉각수온만 입력되면, 이후의 냉각수온 변화를 MAP에 따라 변화하는 것으로 판단하여 공급연료, 흡입공기량, 점화시기 등을 조절하게 된다.Therefore, in the electronic control unit, if only the initial cooling water temperature is input, it is determined that the subsequent cooling water temperature changes according to the MAP, thereby controlling the supply fuel, the intake air amount, the ignition timing, and the like.
즉, 겨울철에 온도가 매우 낮을 경우, 정확한 초기 냉각수온을 설정할 수 있게 되고, 이에 따른 엔진제어가 가능해짐으로써 실제상황에 적합한 엔진제어를 할 수 있게 된다.That is, when the temperature is very low in winter, it is possible to set the correct initial cooling water temperature, thereby enabling the engine control according to the engine control can be appropriate to the actual situation.
이상 설명한 바와 같이 본 고안에 의하면, 냉각수온측정센서로 부터 냉각수온을 입력받을 수 없는 경우에도 실제로 변화하는 냉각수온에 의한 엔진제어와 유사한 엔진제어가 가능해지는데, 이는 특히 겨울철 외기의 온도를 고려한 실제 상황에 부합하는 엔진의 제어가 가능해짐으로써 실제의 냉각수온에 대해 적절치 못한 제어를 행함으로써 발생되는 엔진의 울컥거림이나 서지현상 및 자동변속기 탑재 차량에서의 변속쇼크현상을 방지할 수 있음은 물론 시동성이 향상되는 효과가 있게 된다.As described above, according to the present invention, even when the cooling water temperature cannot be input from the cooling water temperature measuring sensor, the engine control similar to the engine control by the cooling water temperature which is actually changed is possible. By controlling the engine in accordance with the situation, it is possible to prevent engine rumble, surge, and shift shock in the vehicle equipped with an automatic transmission caused by improper control of the actual cooling water temperature. This has the effect of being improved.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960056217U KR19980043105U (en) | 1996-12-24 | 1996-12-24 | Engine control device of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960056217U KR19980043105U (en) | 1996-12-24 | 1996-12-24 | Engine control device of car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980043105U true KR19980043105U (en) | 1998-09-25 |
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ID=53995717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960056217U KR19980043105U (en) | 1996-12-24 | 1996-12-24 | Engine control device of car |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980043105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100398183B1 (en) * | 2000-12-05 | 2003-09-19 | 현대자동차주식회사 | Water Temperature Signal Processing Method In An Engine Control System |
| KR100415241B1 (en) * | 2001-07-10 | 2004-01-16 | 기아자동차주식회사 | Starting method in disorder of combustion detection sensor |
-
1996
- 1996-12-24 KR KR2019960056217U patent/KR19980043105U/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100398183B1 (en) * | 2000-12-05 | 2003-09-19 | 현대자동차주식회사 | Water Temperature Signal Processing Method In An Engine Control System |
| KR100415241B1 (en) * | 2001-07-10 | 2004-01-16 | 기아자동차주식회사 | Starting method in disorder of combustion detection sensor |
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