KR960041667A - Air-fuel ratio control device and engine control method when engine overheats - Google Patents

Air-fuel ratio control device and engine control method when engine overheats Download PDF

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Publication number
KR960041667A
KR960041667A KR1019950012253A KR19950012253A KR960041667A KR 960041667 A KR960041667 A KR 960041667A KR 1019950012253 A KR1019950012253 A KR 1019950012253A KR 19950012253 A KR19950012253 A KR 19950012253A KR 960041667 A KR960041667 A KR 960041667A
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KR
South Korea
Prior art keywords
engine
fuel
air
temperature
fuel ratio
Prior art date
Application number
KR1019950012253A
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Korean (ko)
Inventor
신승용
Original Assignee
전성원
현대자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950012253A priority Critical patent/KR960041667A/en
Publication of KR960041667A publication Critical patent/KR960041667A/en

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  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

엔진의 과열 상태로 엔진 냉각수 온도가 과다 상승하면 공연비를 제어하여 엔진의 냉각수 온도를 제어할 수 있도록 하는 엔진 과열시 공연비 제어 장치 및 그 제어 방법을 제공하기 위하여, 엔진의 냉각수 온도에 해당하는 전기 신호를 출력하는 엔진 냉각 수온 감지 수단과; 상기 엔진 냉각 수온 감지 수단에서 입력되는 신호를 판독하여, 엔진의 냉각수 온도가 설정 온도 이상일 경우에 연료 분사량을 제어하기 위한 공연비의 상태를 농후한 상태로 가변시켜 해당 양의 연료를 분사할 수 있는 제어 신호를 출력하는 엔진 제어 수단과; 상기 엔진 제어 수단에서 인가되는 제어 신호에 따라 동작 상태가 가변되어 해당 실린더로 연료를 분사하는 연료 분사 장치로 이루어져 있다.In order to provide an air-fuel ratio control apparatus and a control method thereof when the engine is overheated so that the engine coolant temperature can be controlled by controlling the air-fuel ratio when the engine coolant temperature is excessively increased due to the overheating of the engine, an electrical signal corresponding to the coolant temperature of the engine Engine cooling water temperature detection means for outputting; A control capable of injecting a corresponding amount of fuel by changing a state of an air-fuel ratio for controlling the fuel injection amount when the engine coolant temperature is higher than a predetermined temperature by reading a signal input from the engine cooling water temperature detecting means. Engine control means for outputting a signal; The operation state is changed according to a control signal applied from the engine control means, and a fuel injection device for injecting fuel into the cylinder.

Description

엔진 과열시 공연비 제어 장치 및 그 제어 방법Air-fuel ratio control device and engine control method when engine overheats

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (2)

엔진의 냉각수 온도에 해당하는 전기신호를 출력하는 엔진 냉각 수온 감지 수단과; 상기 엔진 냉각 수온 감지 수단에서 입력되는 신호를 판독하여, 엔진의 냉각수 온도가 설정 온도 이상일 경우에 연료 분사량을 제어하기 위한 공연비의 상태를 농후한 상태로 가변시켜 해당 양의 연료를 분사할 수 있는 제어신호를 출력하는 엔진 제어수단과; 상기 엔진 제어수단에서 인가되는 제어 신호에 따라 동작 상태가 가변되어 해당 실린더로 연료를 분사하는 연료 분사 장치로 이루어져 있는 것을 특징으로 하는 엔진 과열시 공연비 제어 장치.Engine cooling water temperature detection means for outputting an electric signal corresponding to the coolant temperature of the engine; A control capable of injecting a corresponding amount of fuel by changing a state of an air-fuel ratio for controlling the fuel injection amount when the engine coolant temperature is higher than a predetermined temperature by reading a signal input from the engine cooling water temperature detecting means. Engine control means for outputting a signal; The air-fuel ratio control device when the engine is overheated, characterized in that the operating state is changed in accordance with the control signal applied from the engine control means is composed of a fuel injection device for injecting fuel to the cylinder. 냉각 수온 감지 수단에서 입력되는 신호를 판독하여, 냉각수 온도를 판정하는 단계와; 판정된 엔진의 냉각수 온도와 설정 온도를 비교 판단하는 단계와; 엔진의 냉각수 온도가 설정 온도가 설정 온도보다 높거나 같을 경우에, 냉각수의 온도에 따라 공연비의 농후 정도를 설정하는 단계와; 설정된 공연비의 농후 정도에 따라 연료 분사장치의 구동 시간을 산출하여, 연료 분사 장치로 연료 분사량 제어 신호를 출력하는 단계로 이루어져 있는 것을 특징으로 하는 엔진 과열시 공연비 제어 방법.Reading a signal input from the cooling water temperature detecting means to determine the cooling water temperature; Comparing and determining the determined coolant temperature and the set temperature of the engine; Setting the rich degree of the air-fuel ratio according to the temperature of the coolant when the coolant temperature of the engine is higher than or equal to the preset temperature; And calculating a driving time of the fuel injector according to the richness of the set air-fuel ratio, and outputting a fuel injection amount control signal to the fuel injector. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012253A 1995-05-17 1995-05-17 Air-fuel ratio control device and engine control method when engine overheats KR960041667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950012253A KR960041667A (en) 1995-05-17 1995-05-17 Air-fuel ratio control device and engine control method when engine overheats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950012253A KR960041667A (en) 1995-05-17 1995-05-17 Air-fuel ratio control device and engine control method when engine overheats

Publications (1)

Publication Number Publication Date
KR960041667A true KR960041667A (en) 1996-12-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950012253A KR960041667A (en) 1995-05-17 1995-05-17 Air-fuel ratio control device and engine control method when engine overheats

Country Status (1)

Country Link
KR (1) KR960041667A (en)

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