KR100427870B1 - Device for detecting engine oil condition - Google Patents
Device for detecting engine oil condition Download PDFInfo
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- KR100427870B1 KR100427870B1 KR10-2000-0078804A KR20000078804A KR100427870B1 KR 100427870 B1 KR100427870 B1 KR 100427870B1 KR 20000078804 A KR20000078804 A KR 20000078804A KR 100427870 B1 KR100427870 B1 KR 100427870B1
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- engine oil
- infrared
- oil
- ecu
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- 239000010705 motor oil Substances 0.000 title claims abstract description 66
- 239000003921 oil Substances 0.000 claims abstract description 26
- 230000003647 oxidation Effects 0.000 claims abstract description 17
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 17
- 238000007689 inspection Methods 0.000 claims abstract description 16
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 230000002528 anti-freeze Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 238000004566 IR spectroscopy Methods 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 claims description 2
- -1 oxidation degree Substances 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 11
- 238000012844 infrared spectroscopy analysis Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000006399 behavior Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical compound [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010711 gasoline engine oil Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/30—Oils, i.e. hydrocarbon liquids for lubricating properties
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
본 발명은 자동차용 엔진오일에 적외선 분광분석기를 이용한 20㎛(500㎝-1)∼2.5㎛(4000㎝-1)의 파장을 갖는 적외선을 투과시켜 엔진오일이 이 구간에서 특정파장을 흡수하는 흡수거동을 판독하여 이를 ECU에서 오일의 변질정도를 수분혼입, 산화도, 연료혼입, 부동액 혼입과 같이 종합적으로 산출할 수 있도록 함으로써 운전자는 엔진오일의 변질상태를 변질 요인별로 분석하여, 주요 변질요인을 손쉽게 발견할 수 있도록 하여 차량 수리를 용이하게 할뿐만 아니라, 최적의 엔진오일 교환시기를 제공할 수 있는 적외선 분광분석기를 이용한 엔진오일 점검장치에 관한 것으로, 이 엔진오일 점검장치는 오일팬(1) 또는 오일통로에 있는 오일을 압송하는 이송펌프(2)와, 상기 이송펌프(2)에 의해 압송된 오일의 성분을 적외선을 이용하여 분석하는 적외선 분광분석기(3)와, 상기 적외선 분광분석기(3)로부터의 분석항목에 입력값을 기준값과 비교하여 계기판 디스플레이(5)에 제어신호를 출력하는 제어유닛(ECU)(4)으로 구성된다.According to the present invention, an infrared ray having a wavelength of 20 μm (500 cm −1) to 2.5 μm (4000 cm −1) is transmitted to an engine oil for automobiles so that the engine oil absorbs a specific wavelength in this section. By reading the behavior, the ECU can calculate the degree of deterioration of oil such as water mixing, oxidation degree, fuel mixing, and antifreeze mixing, and the driver analyzes the deterioration state of engine oil by the deterioration factors and analyzes the main deterioration factors. The present invention relates to an engine oil inspection device using an infrared spectrometer that not only makes it easy to repair the vehicle, but also provides an optimum engine oil replacement time. The engine oil inspection device includes an oil pan (1). Alternatively, an infrared spectroscopic analysis for analyzing the components of the oil pumped by the transfer pump 2 and the oil pumped in the oil passage using infrared rays 3 and a control unit (ECU) 4 for outputting a control signal to the instrument panel display 5 by comparing an input value to an analysis item from the infrared spectrometer 3 with a reference value.
Description
본 발명은 적외선 분광분석기를 이용한 엔진오일 점검장치에 관한 것으로, 보다 상세하게는, 엔진오일에 적외선 분광분석기를 이용한 20㎛(500㎝-1)∼2.5㎛(4000㎝-1)의 파장을 갖는 적외선을 투과시켜 엔진오일이 이 구간에서 특정파장을 흡수하는 흡수거동을 판독하여 이를 ECU에서 오일의 변질정도를 수분혼입, 산화도, 연료혼입, 부동액 혼입과 같이 종합적으로 산출할 수 있도록 구성한 적외선 분광분석기를 이용한 엔진오일 점검장치에 관한 것이다.The present invention relates to an engine oil inspection apparatus using an infrared spectrometer, and more particularly, has a wavelength of 20㎛ (500cm-1) to 2.5㎛ (4000cm-1) using an infrared spectrometer for the engine oil. Infrared spectrometer configured to read the absorption behavior of the engine oil absorbing the specific wavelength in this section by transmitting the infrared rays and calculate the oil deterioration degree comprehensively in the ECU such as water mixing, oxidation degree, fuel mixing and antifreeze mixing. The present invention relates to an engine oil inspection apparatus using an analyzer.
현재까지 차량에서 엔진오일의 상태를 파악하기 위해 이용되는 방법으로는 빛을 투과하여 오일의 변색정도를 판독하는 방법과, 리트머스 시험지나 PH전극을 사용하여 오일의 산성도를 측정하는 방법이 있다. 이들 방법은 엔진오일의 여러 가지 변질요인 중에서 단편적인 항목만을 검사하여 엔진오일의 상태를 지시 및 경고하는 벙법으로서, 엔진오일의 변질원인을 정확하게 밝혀내지는 못한다.Until now, the method used to determine the state of the engine oil in a vehicle includes a method of transmitting the light to read the discoloration of the oil, and a method of measuring the acidity of the oil using litmus paper or PH electrode. These methods are a method of indicating and warning the state of the engine oil by inspecting only a fractional item among various deterioration factors of the engine oil, and do not accurately identify the cause of the deterioration of the engine oil.
그로 인해, 엔진오일의 교환시점이 되었음에도 불구하고 제때에 경고하지 못할 뿐만 아니라, 운전자가 엔진오일 경고장치를 통하여 고장난 부품을 발견해내는 것이 거의 불가능하다. 그리고, 종래의 기술들은 엔진오일의 변질상태를 수치로 나타낼 수 없기 때문에, 엔진오일의 교환시점을 정확히 예측하는 것이 사실상 불가능하다.As a result, not only does it fail to warn in a timely manner even when the engine oil is replaced, but it is almost impossible for the driver to find a faulty part through the engine oil warning device. In addition, since the state of the art can not express the altered state of the engine oil, it is virtually impossible to accurately predict the time of replacement of the engine oil.
이와 같은 문제점을 해결하기 위한 본 발명은 적외선 분광분석기를 이용하여 엔진오일의 열화상태를 여러 가지 항목에 걸쳐서 체크한 다음, 이를 개개의 항목별로 수치화하여 운전자에게 지시 및 경보할 수 있으며, 개별적인 항목으로부터 엔진오일의 상태를 지시하기 때문에 운전자는 가정 적합한 시기에 엔진오일을 교환할 수 있고, 그로 인해 고장난 엔진부품 및 냉각계통의 부품 등을 쉽게 발견할 수 있으며, 엔진오일을 변질시키는 개별항목을 수치로 제공하므로 운전자는 엔진오일의 교환시기를 정확히 예측할 수 있어 차량의 수명을 연장할 수 있는 적외선 분광분석기를 이용한 엔진오일 점검장치를 제공하는데 그 목적이 있다.In order to solve the above problems, the present invention can check the deterioration state of the engine oil through various items using an infrared spectrometer, and then digitize it for each item to instruct and alert the driver. By indicating the status of the engine oil, the driver can change the engine oil at a suitable time in the home, and thus can easily find the failed engine parts and parts of the cooling system, and the number of individual items that deteriorate the engine oil. The purpose of the present invention is to provide an engine oil inspection apparatus using an infrared spectroscopy analyzer that can accurately predict the engine oil replacement time, thereby extending the life of the vehicle.
본 발명의 적외선 분광분석기를 이용한 엔진오일 점검장치에 의하면, 자동차용 엔진오일에 20㎛(500㎝-1)∼2.5㎛(4000㎝-1)의 파장을 갖는 적외선을 투과시켜 엔진오일이 이 구간에서의 흡수거동을 각 파장에 따라 분류 판독하여 이를 ECU에서 정량화하여 오일의 오염원(산화, 수분, 연료혼입, 부동액혼입)별로 운전자에게 제공함으로써 최적으로 엔진오일 교환하는 것이 가능하다.According to the engine oil inspection apparatus using the infrared spectrometer of the present invention, the engine oil is transmitted to the engine oil for automobiles by transmitting infrared rays having a wavelength of 20 μm (500 cm −1) to 2.5 μm (4000 cm −1). It is possible to optimally change engine oil by classifying and reading absorption behavior according to each wavelength and quantifying it in ECU and providing it to the driver by oil pollution source (oxidation, water, fuel mixing, antifreeze mixing).
도 1은 본 발명에 따른 적외선 분광분석기를 이용한 엔진오일 점검장치D의 구성도,1 is a block diagram of an engine oil inspection apparatus D using an infrared spectrometer according to the present invention;
도 2는 도 1의 적외선 분광분석기의 상세도,2 is a detailed view of the infrared spectrometer of FIG. 1;
도 3a와 도 3b는 본 발명에 따른 적외선 분광분석기를 이용하여 엔진오일의 산화정도를 비교하여 나타낸 그래프.3a and 3b are graphs showing the degree of oxidation of engine oil using an infrared spectroscopy analyzer according to the present invention.
[도면의 주요부분에 대한 부호의 설명][Explanation of symbols on the main parts of the drawings]
1:오일팬 2:오일이송펌프1: oil pan 2: oil transfer pump
3:적외선 분석기 4:ECU3: infrared analyzer 4: ECU
5:계기판 디스플레이 6:적외선 발생 및 조사부5: Instrument display 6: Infrared generation and irradiation part
7:시료 셀 8:비교용 셀7: Sample cell 8: Comparative cell
9:적외선 검출기9: infrared detector
상술한 목적을 달성하기 위한 본 발명의 적외선 분광분석기를 이용한 엔진오일 점검장치는:오일팬 또는 오일통로에 있는 오일을 압송하는 이송펌프와;적외선 발생 및 조사부와, 이 적외선 발생 및 조사부로부터 조사된 적외선이 통과하는 것으로 상기 이송펌프에 의해 압송된 검사용 엔진오일이 담겨 있는 시료 셀 및 비교용 엔진오일이 담겨 있는 비교용 셀과, 상기 시료 셀 및 비교용 셀을 통과한 적외선을 검출하여 상기 ECU로 입력하는 검출부로 구성되어, 상기 이송펌프에 의해 압송된 오일의 성분을 적외선을 이용하여 분석하는 적외선 분광분석기와;상기 적외선 분광분석기로부터의 분석항목에 입력값을 기준값과 비교하여 계기판 디스플레이에 제어신호를 출력하는 제어유닛(ECU)으로 구성하여;상기 ECU가 적외선 분광분석기로부터 입력된 신호를 바탕으로, 수분량, 산화도, 연료량, 부동액량을 동시에 인식하여 계기판 디스플레이에 디스플레이 신호를 보내고, 상기 계기판의 디스플레이는 상기 ECU로부터 전달되는 제어신호에 의해서 수분량, 산화도, 연료량, 부동액량을 수치로 디스플레이하는 동시에 그 수치에 따라 수분량, 산화도, 연료량, 부동액량의 상태를 양호(GOOD) 및 경고(WARNING)의 문자로 디스플레이하는 것을 특징으로 한다.Engine oil inspection apparatus using an infrared spectroscopy analyzer of the present invention for achieving the above object: a transfer pump for pumping oil in the oil pan or oil passage; infrared generation and irradiation unit, irradiated from the infrared generation and irradiation unit Infrared light passes through the sample cell containing the inspection engine oil and the comparison cell containing the engine oil for comparison, and the infrared rays passing through the sample cell and the comparison cell are detected by the transfer pump. An infrared spectrometer configured to detect a component of oil conveyed by the transfer pump using infrared rays; and an input value of an analysis item from the infrared spectrometer is compared to a reference value and controlled on an instrument panel display. A control unit (ECU) for outputting a signal; the ECU receives a signal input from an infrared spectrometer On the basis of this, the water amount, oxidation degree, fuel amount, and antifreeze amount are simultaneously recognized and a display signal is sent to the instrument panel display. At the same time, the water content, oxidation degree, fuel amount, and antifreeze amount are displayed in GOOD and WARNING characters according to the numerical value.
이하, 첨부한 도면을 참조하여 본 발명의 바람직한 실시예에 따른 적외선 분광분석기를 이용한 엔진오일 점검장치에 대하여 상세히 설명한다.Hereinafter, an engine oil inspection apparatus using an infrared spectroscopy analyzer according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 적외선 분광분석기를 이용한 엔진오일 점검장치의 구성도이고, 도 2는 도 1의 적외선 분광분석기의 상세도이며, 도 3a와 도 3b는 본 발명에 따른 적외선 분광분석기를 이용하여 엔진오일의 산화정도를 비교하여 나타낸 그래프이다.1 is a block diagram of an engine oil inspection apparatus using an infrared spectrometer according to the present invention, Figure 2 is a detailed view of the infrared spectrometer of Figure 1, Figures 3a and 3b using an infrared spectrometer according to the present invention To compare the oxidation level of the engine oil.
먼저, 도 1에 도시된 바와 같이, 본 발명에 따른 적외선 분광분석기를 이용한 엔진오일 점검장치의 전체적인 구성을 보면 오일팬(1) 또는 오일통로에 있는 오일을 압송하는 이송펌프(2)와, 상기 이송펌프(2)에 의해 압송된 오일의 성분을 적외선을 이용하여 분석하는 적외선 분광분석기(3)와, 상기 적외선 분광분석기(3)로부터의 분석항목에 입력값을 기준값과 비교하여 계기판 디스플레이(5)에 제어신호를 출력하는 제어유닛(ECU)(4)으로 이루어져 있다.First, as shown in Figure 1, the overall configuration of the engine oil inspection apparatus using an infrared spectroscopy analyzer according to the present invention, the oil pump (1) or the transfer pump (2) for pumping oil in the oil passage, and An infrared spectrometer (3) for analyzing the components of the oil conveyed by the transfer pump (2) using infrared rays, and an input value for an analysis item from the infrared spectrometer (3) is compared with a reference value (5). ), A control unit (ECU) 4 for outputting a control signal.
여기에서, 적외선 분광분석기(3)는 도 2에 도시된 바와 같이, 적외선 발생 및 조사부(6)와, 이 적외선 발생 및 조사부(6)로부터 조사된 적외선이 통과하는 것으로 이송펌프(2)에 의해 압송된 검사용 엔진오일이 담겨 있는 시료 셀(7) 및 비교용 엔진오일이 담겨 있는 비교용 셀(8)과, 이들 시료 셀(7) 및 비교용 셀(8)을 통과한 적외선을 검출하여 ECU(4)로 입력하는 검출부(9)로 이루어져 있다.Here, as shown in FIG. 2, the infrared spectrometer 3 is driven by the transfer pump 2 as the infrared generating and irradiating unit 6 and the infrared rays irradiated from the infrared generating and irradiating unit 6 pass. The sample cell 7 containing the pumped inspection engine oil and the comparison cell 8 containing the comparison engine oil and the infrared rays passing through the sample cell 7 and the comparison cell 8 are detected. It consists of the detection part 9 which inputs to ECU4.
도 2에 도시된 바와 같이, 적외선 발생 및 조사부(6)에서 조사된 적외선은엔진오일이 포함된 시료 셀(7) 및 비교용 셀(8)을 통과하여 검출기(9)에서 통과된 적외선을 파장별로 비교 검출하게 된다. 여기에서 비교 검출된 파장별 적외선 세기는 상기 셀(7), (8)에서 흡수하지 않고 투과된 적외선 세기를 나타내며, 적외선 발생 및 조사부(6)에서 조사된 적외선 세기에서 이 값을 뺀 값을 각 파장영역별로 나타낸 것이 흡수율이 된다. 엔진오일에서 각 성분이 흡수하는 적외선 파장영역을 이하의 표 2에 나타내었고 그 일예를 도 3a와 도 3b에 나타내었다.As shown in FIG. 2, the infrared rays irradiated from the infrared ray generating and irradiating unit 6 may pass through the sample cell 7 and the comparison cell 8 including the engine oil and pass the infrared rays passed from the detector 9. Compared to each other will be detected. Herein, the infrared intensity for each wavelength detected by comparison indicates infrared intensity transmitted without being absorbed by the cells (7) and (8), and a value obtained by subtracting this value from each of the infrared rays generated and irradiated by the irradiation unit 6 is obtained. What is shown for each wavelength region is an absorption rate. The infrared wavelength region absorbed by each component in the engine oil is shown in Table 2 below, and one example is shown in FIGS. 3A and 3B.
여기에서, 시료 셀(7) 및 비교용 셀(8)은 각각, 엔진오일 및 비교용 엔진오일을 담는 셀로서 2개의 재질은 동일해야 하며, 적외선 통과길이도 2개의 셀 길이가 동일해야 한다. 셀의 종류로는 Na셀 K셀 등이 있다.Here, the sample cell 7 and the comparison cell 8 are cells containing the engine oil and the comparison engine oil, respectively, and the two materials must be the same, and the length of the infrared light passing through the two cells must be the same. Examples of the cell include Na cell K cell.
도 2에서 검출부(9)는 상기 셀(7), (8)을 통과한 적외선의 세기를 20㎛(500㎝-1)∼2.5㎛(4000㎝-1)파장영역에서 감지하고, 이 값들을 표 2에 나타낸 파장영역에 해당하는 적외선 발생 및 조사부(6)에서 조사된 적외선 세기와의 차이를 구하며, 이 차이 값들을 셀 길이로 나누어 그 값을 ECU(4)로 전송한다.In FIG. 2, the detection unit 9 detects the intensity of the infrared rays passing through the cells 7 and 8 in the wavelength range of 20 μm (500 cm −1) to 2.5 μm (4000 cm −1), and detects these values. The difference between the infrared generation corresponding to the wavelength range shown in Table 2 and the infrared intensity irradiated by the irradiation unit 6 is obtained, and the difference is divided by the cell length and the value is transmitted to the ECU 4.
도 1에서 ECU(4)는 검출부(9)로부터 입력된 값을 바탕으로 수분, 연료량, 부동액량을 첨가된 부피부와 신호 세기값을 일련의 프로그램에 의해서 부피부로 계기판으로 전달하고, 그 부피부를 계기판 디스플레이(5)로 전달한다. 또, 산화도는 검출부(9)에서 입력된 신호를 계산과정없이 계기판 디스플레이로 전달한다. 또한, 수분량, 산화도, 연료량, 부동액량은 미리 입력된 값과 비교하여 그 보다 클 때에는 표 1에 나타낸 바와 같이 해당란에 "경고(WARNING)"란 문자가 표시되며, 입력값 이하일 때에는 "양호(GOOD)"란 문자로써 엔진오일의 상태를 표시하게 되며, 표 1에서개별항목란에 있는 4개 중에서 어느 한 곳이라도 "경고(WARNING)"란 문자가 표시되면 "엔진오일 상태(ENGINE OIL CONDITION)"란 칸의 우측에 있는 "교환(REPLACE)"이란 문자가 표시되어 운전자에게 엔진오일의 교환여부를 판단할 수 있도록 점등한다.In FIG. 1, the ECU 4 transmits the volume part and the signal intensity value to which the moisture, fuel amount, and antifreeze amount are added based on the value input from the detection unit 9 to the instrument panel through the volume part by a series of programs. The skin is transferred to the instrument panel display (5). In addition, the degree of oxidation transfers the signal input from the detector 9 to the instrument panel display without calculation. In addition, when the water content, oxidation degree, fuel amount, and antifreeze amount are larger than the previously inputted values, as shown in Table 1, the word "WARNING" is displayed in the corresponding column. GOOD) "is used to indicate the status of the engine oil. If any of the four words in the individual column of the table" WARNING "is displayed in the table," ENGINE OIL CONDITION " The word "REPLACE" on the right side of the column is displayed to illuminate the driver to determine whether the engine oil has been replaced.
표 1에는 ECU(4)로부터 수신한 신호를 바탕으로 엔진오일의 상태를 4개의 함복에 의하여 종합적으로 운전자가 파악할 수 있도록 경고 표시되는 부분으로서 하나의 예를 나타낸 것이다.Table 1 shows an example as a warning display part so that the driver can grasp the state of the engine oil comprehensively by four shipboards based on the signal received from the ECU 4.
이들 표시문자[GOOD(우수), WATER(수분량), OXIDATION(산화도), FUEL(연료량), COOLANT(부동액량), WARNING(경고), REPLACE(교환), CURRENT ENGINE OIL CONDITION(현재의 엔진오일상태)]는 영문자로 디스플레이되도록 하는 것이 바람직하나, 수출차량의 경우에는 각국의 언어로 표시되도록 할 수도 있다.These indicators: GOOD, WATER, OXIDATION, FUEL, FUEL, COOLANT, WARNING, REPLACE, CURRENT ENGINE OIL CONDITION Status)] is preferably displayed in English characters, but in the case of export vehicles may be displayed in the language of each country.
이와 같이, 운전자는 엔진오일의 현재상태를 여러 가지 관점에서 판단할 수 있으며, 이를 바탕으로 운전자는 적절한 시기에 엔진오일을 교환하여 엔진 부품의 손상을 예방할 수 있다.In this way, the driver can determine the current state of the engine oil from various points of view, and based on this, the driver can prevent engine damage by replacing the engine oil at an appropriate time.
본 발명에 따른 엔진오일 점검장치에 있어서, 엔진오일은 20㎛(500㎝-1)∼2.5㎛(4000㎝-1)영역의 파장에서 도 3 및 다음의 표 2에 나타낸 바와 같이, 각 오염원의 종류별로 적외선을 흡수하는 위치를 달리하며, 그 흡수량에 따라서 흡수세기가 상이함을 이용한 것으로, 흡수위치 및 흡수세기를 ECU에서 표 1의 변질요인 별로 정량화하여 그 수치를 운전자에게 제공함으로써 운전자는 자신이 소유하고 있는 차량의 엔진오일의 상태를 종합적인 판단 기준에 의거하여 정확하게 판단할 수 있게 된다.In the engine oil inspection apparatus according to the present invention, the engine oil has a wavelength of 20 μm (500 cm −1) to 2.5 μm (4000 cm −1), as shown in FIG. 3 and Table 2 below. The position of absorbing infrared rays varies depending on the type, and the absorption intensity is different depending on the amount of absorption.The absorption position and the absorption intensity are quantified for each deterioration factor of Table 1 in the ECU, and the driver provides the operator with the numerical value. The state of the engine oil of the owned vehicle can be accurately judged based on the comprehensive judgment criteria.
여기서, 표 2는 적외선 조상에 의한 변질유 및 정상유의 흡수(투과)거동예Table 2 shows examples of absorption (transmission) behaviors of the denatured oil and the normal oil by infrared ancestors.
한편, 도 3a는 일예로서 165℃에서 96시간 동안 산화시킨 가솔린 엔진오일(7.5W-30), 도 3b는 사용하기 전의 엔진오일(7.5W-30)에서의 산화정도를 비교하여 나타낸 그래프로서, X축은 파장을 나타내며, Y축 투과율(100-투과율=흡수율)을 나타낸다. 도 3a에서 보면, 1720㎝-1위치가 엔진오일의 산화에 의하여 생성된 탄소와 산소간의 이중결합의 존재여부를 나타내며, 1640㎝-1은 엔진오일의 질화영역을 나타낸다.On the other hand, Figure 3a is an example of a gasoline engine oil (7.5W-30) oxidized for 96 hours at 165 ℃, Figure 3b is a graph showing the degree of oxidation in the engine oil (7.5W-30) before use, The X axis represents wavelength and the Y axis transmittance (100-transmittance = absorption rate). In FIG. 3A, the 1720 cm −1 position indicates the presence of a double bond between carbon and oxygen generated by oxidation of the engine oil, and the 1640 cm −1 indicates a nitriding region of the engine oil.
이상으로 설명한 본 발명에 의하면, 첫째, 운전자는 자기 차량의 엔진오일 상태를 다각적인 측면에서 점검할 수 있고, 둘째, 운전자는 엔진오일의 변질요인을 객관적인 데이터를 근거로 쉽게 파악할 수 있고, 셋째, 엔진오일 변질요소를 식별함으로써, 차량의 특정부품의 손상을 쉽게 교체 및 수리할 수 있다. 일예로서 표 1에서 주행거리 대비 수분함량에 의해서 엔진오일이 변질되었다면, 실린더헤드 및 가스켓 등과 같은 냉각계 순환시스템에 이상이 발생하였음을 알 수 있다. 넷째, 종래의 기술과는 달리 여러 항목의 관점에서 엔진오일의 교환시기를 보다 정확히 판단할 수 있으므로, 엔진오일 교환시기의 지연에 따른 윤활부품의 마모 및 손상을 방지함과 동시에, 무분별한 엔진오일의 교환으로 인한 차량 유지비용의 절감 및 환경오염을 막을 수 있는 이점이 있다.According to the present invention described above, first, the driver can check the engine oil state of his vehicle from various aspects, and second, the driver can easily identify the deterioration factors of the engine oil on the basis of objective data. By identifying engine oil deterioration elements, damage to certain parts of the vehicle can be easily replaced and repaired. As an example, in Table 1, if the engine oil is deteriorated by the moisture content compared to the mileage, it can be seen that an abnormality occurs in the cooling system circulation system such as the cylinder head and the gasket. Fourth, unlike the prior art, it is possible to determine the engine oil replacement time more accurately from the viewpoint of various items, thereby preventing the wear and damage of the lubricating parts due to the delay of engine oil replacement time, There is an advantage in reducing the vehicle maintenance cost and environmental pollution due to replacement.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101566499B1 (en) | 2013-08-23 | 2015-11-10 | 안원배 | A method of detecting degradation of engine oil and a method of determining engine oil exchange time using the same |
| KR20220014518A (en) | 2020-07-29 | 2022-02-07 | 주식회사 에스에스솔루션 | Apparatus for monitoring oil oxidation in real time |
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| JPH08226896A (en) * | 1995-02-22 | 1996-09-03 | Showa Shell Sekiyu Kk | Detecting method of deterioration of lubricating oil |
| KR970057288A (en) * | 1995-12-26 | 1997-07-31 | 배순훈 | TV channel switching device by voice recognition |
| KR19980050251U (en) * | 1996-12-30 | 1998-10-07 | 김영환 | Engine oil deterioration detection device |
| KR19990035482A (en) * | 1997-10-31 | 1999-05-15 | 정몽규 | Engine oil analyzer during engine operation |
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| JPH05296926A (en) * | 1992-04-17 | 1993-11-12 | Nippon Oil Co Ltd | Measuring method for insoluble component contained in engine oil for ship |
| KR960702607A (en) * | 1994-03-25 | 1996-04-27 | 츠찌야 히로오 | Infrared spectroscopic analysis of gases and apparatus used therein |
| JPH08226896A (en) * | 1995-02-22 | 1996-09-03 | Showa Shell Sekiyu Kk | Detecting method of deterioration of lubricating oil |
| KR970057288A (en) * | 1995-12-26 | 1997-07-31 | 배순훈 | TV channel switching device by voice recognition |
| KR19980050251U (en) * | 1996-12-30 | 1998-10-07 | 김영환 | Engine oil deterioration detection device |
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| KR101566499B1 (en) | 2013-08-23 | 2015-11-10 | 안원배 | A method of detecting degradation of engine oil and a method of determining engine oil exchange time using the same |
| KR20220014518A (en) | 2020-07-29 | 2022-02-07 | 주식회사 에스에스솔루션 | Apparatus for monitoring oil oxidation in real time |
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