KR980002712A - How to calibrate the air volume when operating the air conditioner compressor - Google Patents

How to calibrate the air volume when operating the air conditioner compressor Download PDF

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Publication number
KR980002712A
KR980002712A KR1019960020118A KR19960020118A KR980002712A KR 980002712 A KR980002712 A KR 980002712A KR 1019960020118 A KR1019960020118 A KR 1019960020118A KR 19960020118 A KR19960020118 A KR 19960020118A KR 980002712 A KR980002712 A KR 980002712A
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KR
South Korea
Prior art keywords
air conditioner
value
state
isapwm
air
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Application number
KR1019960020118A
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Korean (ko)
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KR0174231B1 (en
Inventor
강대진
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박병재
현대자동차 주식회사
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Priority to KR1019960020118A priority Critical patent/KR0174231B1/en
Publication of KR980002712A publication Critical patent/KR980002712A/en
Application granted granted Critical
Publication of KR0174231B1 publication Critical patent/KR0174231B1/en

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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
    • F02D41/0002—Controlling intake air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/3208—Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

본 발명은 에이컨 컴프레서가 오프 상태에서 온 상태로 전환될 때 엔진 출력중 일부가 에어컨 컴프레서의 구동을 위해 손실되어 엔진 RPM이 순간적으로 떨어지게 하고, 엔진 RPM의 급격한 변화는 차량의 주행성능에 악영향을 끼치게 되므로 엔진에 공급되는 공기량을 보정하여 출력을 향상시킴으로써 엔진 RPM의 급락을 방지할 필요가 있기 때문에, 엔진으로 흡입되는 공기의 온도와 RPM 및 로드가 체크되어 각 조건에 맞는 대기 보정치와 RPM 로드 보정치가 결정되고, 에어컨 컴프레서가 온·오프될 때의 에어컨 팩터값 및 에서컨 컴프레서가 오프 상태에서 온 상태로 전환되는 경우의 차속에 따른 ISAPWM 값이 결정된 뒤, 상기의 결과가 전환되는 경우의 차속에 따른 ISAPWM값이 결정된 뒤, 상기의 결과가 일정 공식에 따라 연산되어 에어컨 컴프로세서 온 상태로 전환시의 ISAPWM의 최종값이 결정되고, 결정된 ISAPWM값에 따라 아이들 스피드 액추에이터가 작동되어 아이들 포트가 개방되도록 구성되어, 에어컨 컴프레서가 오프 상태에서 온 상태로 전환시에도 엔진 출력이 그대로 유지되도록 된 에어컨 컴프레서 작동시 공기량 보정 방법에 관한 것이다.According to the present invention, when the air conditioning compressor is switched from the off state to the on state, part of the engine output is lost for driving the air conditioner compressor so that the engine RPM falls momentarily, and the sudden change in the engine RPM adversely affects the driving performance of the vehicle. Therefore, it is necessary to prevent the drop of engine RPM by improving the output by correcting the amount of air supplied to the engine. Therefore, the temperature, RPM, and load of the air drawn into the engine are checked, and the atmospheric correction value and RPM load correction value for each condition are checked. After determining the air conditioner factor value when the air conditioner compressor is turned on and off, and the ISAPWM value corresponding to the vehicle speed when the air conditioner compressor is switched from the off state to the on state, and according to the vehicle speed when the above result is switched. After the ISAPWM value is determined, the above result is calculated according to a formula and brought into the air conditioner The final value of the ISAPWM at the time of switching is determined, and the idle speed actuator is operated according to the determined ISAPWM value so that the idle port is opened, so that the engine output is maintained even when the air conditioner compressor is switched from the off state to the on state. The present invention relates to a method for compensating air volume during compressor operation.

Description

에어컨 컴프레서 작동시 공기량 보정 방법How to calibrate the air volume when operating the air conditioner compressor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 에어컨 컴프레서 온 상태로 전환될 때의 변화선도로서, (a)도는 에어컨 팩터의 변화선도, (b)도는 ISAPWM의 변화선도.1 is a change diagram when the air conditioner compressor is switched on, (a) is a change diagram of the air conditioner factor, and (b) is a change diagram of the ISAPWM.

제2도는 본 발명에 의한 에어컨 컴프레서 작동시 공기량 보정 방법이 도시된 흐름도.2 is a flowchart illustrating a method for correcting air volume during the operation of an air conditioner compressor according to the present invention.

Claims (2)

엔진으로 흡입되는 공기의 온도와 RPM 및 로드가 체크되어 각 조건에 맞는 대기 보정치와 RPM·로드보정치가 결정되는 제1과정과, 에어컨 컴프레서가 온·오프될 때의 에어컨 팩터값 및 에어컨 컴프레서가 오프 상태에서 온 상태로 전환되는 경우의 차속에 따른 초기 상태의 ISAPWM값이 결정되는 제2과정과, 상기 제1과정 및 상기 제2과정에서의 결과가 일정 공식에 따라 연산되어 에어컨 컴프레서 작동시의 ISAPWM의 최종값이 결정되는 제3과정과, 상기 제3과정의 ISAPWM값에 따라 아이들 스피드 액추에이터가 작동되어 아이들 포트가 개방되는 제4과정과 이루어진 것을 특징으로 하는 에이컨 컴프레서 작동시 공기량 보정 방법.The first process of checking the air temperature, RPM and load of the air drawn into the engine to determine the atmospheric correction value and RPM / load correction value for each condition, the air conditioner factor value when the air conditioner compressor is turned on and off, and the air conditioner compressor are turned off The second process of determining the ISAPWM value of the initial state according to the vehicle speed when the vehicle is switched from the on state to the on state, and the results of the first process and the second process are calculated according to a formula and the ISAPWM during operation of the air conditioner compressor. And a fourth step of determining a final value of the second step and a fourth step of operating the idle speed actuator according to the ISAPWM value of the third step to open the idle port. 제1항에 있어서, 상기 제1과정 및 상기 제2과정은 동시에 시행되고, 상기 RPM·로드 보정치 및 상기 차속에 따른 ISAPWM값은 ECU에 맵핑된 값을 기준으로 비례식에 의해 결정되는 것을 특징으로 하는 에어컨 컴프레서 작동시 공기량 보정 방법.The method of claim 1, wherein the first process and the second process are performed simultaneously, and the ISAPWM value according to the RPM / load correction value and the vehicle speed is determined by a proportional expression based on a value mapped to an ECU. How to calibrate the air volume when the air conditioner compressor is operating. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960020118A 1996-06-05 1996-06-05 Compensation method of air flow rates in an operation of air compressor KR0174231B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960020118A KR0174231B1 (en) 1996-06-05 1996-06-05 Compensation method of air flow rates in an operation of air compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960020118A KR0174231B1 (en) 1996-06-05 1996-06-05 Compensation method of air flow rates in an operation of air compressor

Publications (2)

Publication Number Publication Date
KR980002712A true KR980002712A (en) 1998-03-30
KR0174231B1 KR0174231B1 (en) 1999-03-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100412703B1 (en) * 2001-09-26 2003-12-31 현대자동차주식회사 Engine idle controlling method of vehicle
KR100422659B1 (en) * 2001-09-11 2004-03-16 현대자동차주식회사 Method For Learning Of Idle Air Flow Mass In Vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100412727B1 (en) * 2001-10-29 2003-12-31 현대자동차주식회사 Methold of controlling fuel at aircon engage for vehicles
KR100412896B1 (en) * 2001-11-07 2003-12-31 현대자동차주식회사 Method for idle speed actuator controlling of engine in vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100422659B1 (en) * 2001-09-11 2004-03-16 현대자동차주식회사 Method For Learning Of Idle Air Flow Mass In Vehicle
KR100412703B1 (en) * 2001-09-26 2003-12-31 현대자동차주식회사 Engine idle controlling method of vehicle

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KR0174231B1 (en) 1999-03-20

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