KR950003448B1 - Exchange interval warning apparatus of engine oil - Google Patents

Exchange interval warning apparatus of engine oil Download PDF

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Publication number
KR950003448B1
KR950003448B1 KR1019920018179A KR920018179A KR950003448B1 KR 950003448 B1 KR950003448 B1 KR 950003448B1 KR 1019920018179 A KR1019920018179 A KR 1019920018179A KR 920018179 A KR920018179 A KR 920018179A KR 950003448 B1 KR950003448 B1 KR 950003448B1
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South Korea
Prior art keywords
engine oil
micom
resistance
vehicle
oil
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KR1019920018179A
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Korean (ko)
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KR940008946A (en
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기회봉
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아시아자동차공업 주식회사
조래승
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Priority to KR1019920018179A priority Critical patent/KR950003448B1/en
Publication of KR940008946A publication Critical patent/KR940008946A/en
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Publication of KR950003448B1 publication Critical patent/KR950003448B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines

Abstract

The apparatus is for alarming the exchange of the automobile engine oil by using the electric conduction variations of the engine oil. The apparatus comprises a current meter (A) including a resistor (Rx) varying according to the electric conduction variations of the engine oil, another resistor (R3) set as the initial electric conduction value of the engine oil, and a variable resistor (R2); a microcomputer (MICOM) sensing a current varaition according to the age of the engine oil and counting the exchange cycle; an indication means (10) displaying the exchange cycle; an automobile battery (B); and a fuse (F) cutting off an abrupt current variation.

Description

자동차의 엔진오일 교환주기 경고장치Engine oil change cycle warning device of automobile

제 1 도는 본 발명의 회로 구성도.1 is a circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 오일교환지시계 20 : 전극10: oil change indicator 20: electrode

30 : 전극봉 40 : 엔진오일30: electrode 40: engine oil

50 : 엔진오일케이스 R1-R3: 저항50: engine oil case R 1 -R 3 : resistance

RX: 전기저항 A : 전류계R X : Electric resistance A: Ammeter

MICOM : 마이콤 F : 휴즈MICOM: Micom F: Hughes

B : 차량용 배터리B: car battery

본 발명은 자동차의 엔진오일 교환주기 경고장치에 관한 것이다. 엔진오일의 전기전도도의 변화를 이용하여 이를 휘스톤 브리지에 연결하고 자동차에 내장된 마이콤에서 엔진오일의 전기전도도를 감지하여 엔진오일의 교환시기를 경고하는 장치인 것이다.The present invention relates to an engine oil replacement cycle warning device for a vehicle. It is a device that connects it to the Wheatstone bridge by using the change in the electric conductivity of the engine oil and detects the electric conductivity of the engine oil in the microcomputer built in the car to warn the engine oil replacement time.

종래의 경우에는 자동차의 사용자가 소유한 자동차의 엔진오일을 언제 교환해야 할 것인가에 대한 수치적 제시가 자동차 회사로부터 부여되지 않아 막연히 주행거리(Km)량에 의존하여 오일을 교환하거나, 오일교환 주기를 놓쳐 엔진의 수명을 짧게하는 경우와 필요없이 엔진오일을 자주 교환하여 경제적인 손실과 환경파괴의 일요인으로 작용하는 폐단이 있었다.In the conventional case, since a numerical proposal on when to replace the engine oil of a vehicle owned by the user of the vehicle is not given by the automobile company, oil is periodically changed depending on the amount of mileage (Km), or an oil change interval is required. The engine was frequently replaced without the need to shorten the engine's life and to reduce the engine's life.

따라서, 본 발명은 상기와 같은 제반 문제점을 해소하기 위하여 자동차의 엔진오일의 노화에 따른 물리화학적인 특성변화를 디지탈이나 아날로그신호로 전환하여 엔진오일의 전기전도도에 따르는 엔진오일의 교환주기를 경고하기 위하여 자동차 사용자의 결정사항 없이 적절한 시기에 엔진오일의 교환주기를 알려줌으로서 엔진의 성능을 장기 유지시켜 줌으로써 경제적일 뿐아니라 환경파기의 일요인으로서의 작용을 최소화함을 목적으로 한다.Therefore, in order to solve the above problems, the present invention is to warn the engine oil exchange cycle according to the electrical conductivity of the engine oil by converting the physicochemical characteristic change according to the aging of the engine oil of the vehicle into a digital or analog signal. For this purpose, it is not only economical but also minimizes the effect of environmental destruction by maintaining the engine performance for a long time by informing the engine oil replacement cycle at an appropriate time without the decision of the automobile user.

다음은 본 발명의 구성을 살펴보면, 자동차의 엔진오일케이스(50)에 주입된 엔진오일(40)내에 전극(20)이 형성된 전극봉(30)으로 이루어져 엔진오일(40)의 전기전도도에 따른 저항치를 나타내는 전기저항(RX)과, 일정한 저항치를 갖는 저항(R1)과, 엔진오일(40)의 초기 전도도의 차를 표준전류량으로 세팅(Setting)한 저항(R3)과, 저항치를 가변할 수 있는 저항(R2)과, 상기 다수개의 저항(RX) (R1-R3)과 직ㆍ병렬로 접속하여 구성한 전류계(A)와; 상기 전류계(A)에 접속되어 엔진오일(40)의 노화에 따른 전기전도도의 전류량을 감지하는 마이콤(MICOM)과, 마이콤(MICOM)에서의 감지신호를 입력받아 엔진오일(40)의 교환주기를 표시하는 오일교환 지시수단(10)과, 상기 회로의 구동전원인 차량용 배터리(B)와, 급격한 전류변화를 차단하는 휴즈(F); 로 구성하여 자동차의 엔진오일(40)의 교환주기를 표시하도록 하였다.Next, looking at the configuration of the present invention, the resistance value according to the electrical conductivity of the engine oil 40 is composed of an electrode rod 30 is formed with the electrode 20 in the engine oil 40 injected into the engine oil case 50 of the vehicle setting the difference between the initial conductivity of indicating the electrical resistance (R X) and the resistance (R 1) and the engine oil 40 having a fixed resistance value as a standard current amount (setting), the resistance (R 3), and to vary a resistance value An ammeter (A) configured by connecting a plurality of resistors (R 2 ) and the plurality of resistors (R X ) (R 1 -R 3 ) in series and in parallel; It is connected to the ammeter (A) and receives a microcomputer (MICOM) for detecting the amount of electrical conductivity according to the aging of the engine oil 40, and receives a detection signal from the MICOM (MICOM) to exchange the engine oil 40 An oil change indicating means (10) to be displayed, a vehicle battery (B) which is a driving power source of the circuit, and a fuse (F) for preventing sudden changes in current; It was configured to display the replacement cycle of the engine oil 40 of the vehicle.

이하, 첨부도면에 의거하여 본 발명의 작용효과를 설명하면 다음과 같다.Hereinafter, the operational effects of the present invention will be described based on the accompanying drawings.

엔진의 일측에 부착되어 엔진오일(40)을 담고 있는 엔진오일케이스(50)내에 전극(20)이 형성된 전극봉(30)을 설치하여 엔진오일(40)의 노화에 따른 전기전도도를 전극(20)에 형성된 전기저항(RX)이 감지하여 저항치가 가변한다. 엔진오일(40)의 초기 전기전도도의 차는 저항(R3)으로 미리 세팅하여 엔진오일(40)의 종류에 관계없이 일정값에서 작동할 수 있게 한다. 또한, 저항치가 가변하는 저항(R2)과 고정된 저항치를 갖는 저항(R1)으로 형성하고 내부에 전류계(A)를 병렬 접속한다.The electrode 20 is attached to one side of the engine and installs an electrode rod 30 in which the electrode 20 is formed in the engine oil case 50 containing the engine oil 40. The electrical resistance (R x ) formed in the sensed variable resistance. The difference in the initial electrical conductivity of the engine oil 40 is set in advance by the resistance (R 3 ) to be able to operate at a constant value irrespective of the type of the engine oil 40. Further, a resistor R 2 having a variable resistance value and a resistor R 1 having a fixed resistance value are formed, and an ammeter A is connected in parallel therein.

상기의 회로는 저항치 측정용의 휘스톤 브리지 회로의 구성으로 4개의 저항(RX)(R1-R3)과 전류계(A)를 조합한 것이다. 즉, 저항(R1-R3)의 3개의 저항을 조정하여 전류계(A)의 움직임을 "0"으로 하면 전류계(A)의 전위차는 "0"으로 되며, 그 등가식은 R1; RX=R2; R3이 되므로 RX=R1×R3/R2이다. 그래서 이미 저항치를 알고 있는 저항(R1)과 R2R3의 비를 알면 전기저항(RX)의 저항치를 알 수 있다. 그러므로 상기의 등가식에서와 같이 엔진오일(40)의 노화에 따른 전기저항(RX)의 변화로 인해 전류계(A)의 전류치가 가 변하고 가변된 전류치는 마이콤(MICOM)에서 제한된 전류치를 감지하며 오일교환지시계(10)는 엔진오일의 교환시기가 되었음을 지시하게 된다.The circuit described above is a combination of four resistors R X (R 1 -R 3 ) and an ammeter A in the structure of the Wheatstone bridge circuit for resistance measurement. That is, if the three resistances of the resistors R 1 -R 3 are adjusted to make the movement of the ammeter A "0", the potential difference of the ammeter A becomes "0", and the equivalent equation is R 1 ; R X = R 2 ; R 3 becomes R X = R 1 × R 3 / R 2 . Therefore, knowing the ratio of the resistance (R 1 ) and R 2 R 3 which already knows the resistance, the resistance of the electrical resistance (R X ) can be known. Therefore, as in the above equation, the current value of the ammeter A changes due to the change of the electrical resistance R X due to the aging of the engine oil 40, and the variable current value senses the limited current value in the MICOM and the oil. The exchange indicator 10 indicates that it is time to replace the engine oil.

상기 회로는 자동차용 배터리(B)의 전원으로 동작하며 순간적인 전류변화에 대응하여 차단장치인 휴즈(F)를 설치하였다.The circuit operates as a power source for the vehicle battery B and installs a fuse F as a blocking device in response to an instantaneous current change.

이와같이 저항(RX)(R1-R3)과 전류계(A)로 구성된 휘스톤 브리지의 원리를 응용하여 엔진오일(40)의 노화과정을 마이콤(MICOM)과 오일교환지시계(10)로 감지하여 엔진오일의 교환시기를 자동차의 사용자로 하여금 용이하게 인식토록 한 것이다.In this way, by applying the principle of the Wheatstone bridge composed of resistors (R X ) (R 1 -R 3 ) and ammeters (A), the aging process of the engine oil 40 is detected by the MICOM and the oil change indicator 10. Therefore, the user can easily recognize the engine oil replacement time.

상기와 같이 엔진오일(40)의 교환주기를 정확히 표시하게 하여 엔진오일(40)의 교환시기에 적합한 엔진오일(40)을 교환을 하도록 함으로서 경제적인 효과와 환경오염의 일요인인 엔진오일의 적정한 사용으로 최소화할 수 있는 기대효과를 볼 수 있는 실사용 가치가 일층 고양된 신규한 발명이라 하겠다.By accurately displaying the replacement cycle of the engine oil 40 as described above to replace the engine oil 40 suitable for the replacement time of the engine oil 40 by appropriately the engine oil, which is a factor of economic effects and environmental pollution It is a new invention with a higher practical value that can be expected to be minimized by use.

Claims (1)

자동차의 엔진오일의 불규칙한 교환주기에 있어서, 자동차의 엔진오일케이스(50)에 주입된 엔진오일(40)내에 전극(20)이 형성된 전극봉(30)으로 이루어져 엔진오일(40)의 전기전도도에 따른 저항치를 나타내는 전기저항(RX)과, 일정한 저항치를 갖는 저항(R1)과, 엔진오일(40)의 초기 전도도의 차를 표준전류량으로 세팅한 저항(R3)과, 저항치를 가변할 수 있는 저항(R2)과, 상기 다수개의 저항(RX)(R1-R3)과 직ㆍ병렬로 접속하여 구성한 전류계(A)와, 상기 전류계(A)에 접속되어 엔진오일(40)의 노화에 따른 전기전도도의 전류량을 감지하는 마이콤(MICOM)과, 마이콤(MICOM)에서의 감지신호를 입력받아 엔진오일(40)의 교환주기를 표시하는 오일교환 지시수단(10)과; 상기 회로의 구동전원인 차량용 배터리(B)와, 급격한 전류변화를 차단하는 휴즈(F); 로 구성하여 자동차의 엔진오일(40)의 교환주기를 표시하도록 된 것을 특징으로 하는 자동차의 엔진오일 교환주기 경고장치.In the irregular exchange cycle of the engine oil of the vehicle, the electrode rod 30 is formed in the engine oil 40 injected into the engine oil case 50 of the vehicle in accordance with the electrical conductivity of the engine oil 40 The electrical resistance R X representing the resistance value, the resistance R 1 having a constant resistance value, the resistance R 3 which sets the difference between the initial conductivity of the engine oil 40 as the standard current amount, and the resistance value can be varied. An ammeter R formed by connecting a plurality of resistors R 2 and the plurality of resistors R X (R 1 -R 3 ) in series and in parallel, and the engine oil 40 connected to the ammeter A. Micom (MICOM) for detecting the current amount of the electrical conductivity according to the aging of, and oil exchange indicating means (10) for receiving the detection signal from the MICOM (MICOM) to display the replacement cycle of the engine oil (40); A vehicle battery (B) which is a driving power source of the circuit, and a fuse (F) for blocking a sudden current change; Engine oil replacement cycle warning device for a vehicle, characterized in that configured to display the replacement cycle of the engine oil 40 of the vehicle.
KR1019920018179A 1992-10-05 1992-10-05 Exchange interval warning apparatus of engine oil KR950003448B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920018179A KR950003448B1 (en) 1992-10-05 1992-10-05 Exchange interval warning apparatus of engine oil

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Application Number Priority Date Filing Date Title
KR1019920018179A KR950003448B1 (en) 1992-10-05 1992-10-05 Exchange interval warning apparatus of engine oil

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KR940008946A KR940008946A (en) 1994-05-16
KR950003448B1 true KR950003448B1 (en) 1995-04-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100425817B1 (en) * 2002-03-12 2004-04-03 학교법인 호서학원 Sensor for replacing engine oil
KR100811677B1 (en) * 2007-02-09 2008-03-11 대성전기공업 주식회사 Multi function sensor

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