KR940015219A

KR940015219A - Vehicle idling speed control device and method

Info

Publication number: KR940015219A
Application number: KR1019920026244A
Authority: KR
Inventors: 이향
Original assignee: 전성원; 현대자동차 주식회사
Priority date: 1992-12-29
Filing date: 1992-12-29
Publication date: 1994-07-20

Abstract

공회전시에 에어콘이나 동력 조향장치 등을 작동시킬 경우 현재의 공회전 속도에 따라 엔진의 보상동작을 제어하므로 값자기 증가하는 공회전 속도로 감소하는 자동차의 승차감을 향상시키기 위하여; 엔진의 회전수를 감지하는 엔진 회전수 감지부와, 기어의 변속상태를 판단하여 엔진의 공회전 상태를 감지하기 위한 엔진 공회전 감지부와, 에어콘의 동작상태에 따라 가변되는 신호를 이용하여 에어콘의 동작상태를 판단하는 에어콘 동작 감지부와, 동력 조향장치의 동작상태에 따라 가변되는 신호를 이용하여 동력 조향장치의 동작상태를 판단하는 동력 조향장치 동작감지부로 이루어져 있는 감지부와; 상기 감지부와 연결되어 공회전 상태에서 에어콘이나 동력 조향장치가 동작되었는지를 판단하고, 에어콘이나 동력 조향장치가 동작될 때 현재 회전하는 엔진의 회전수와 목표 회전수의 차이를 계산하여 설정치와 비교 판단하고, 계산된 회전수 차이가 설정된 설정치보다 클 경우에는 엔진의 회전수가 목표 회전수까지 내려가기 전까지 별도의 연료 분사동작을 수행하지 않고, 회전수 차이가 설정된 설정값보다 작을 경우나 엔진의 회전수가 목표 회전수보다 작을 경우에만 별도로 엔진의 회전수를 증가시키기 위한 분사동작을 실행하는 엔진 제어부와; 상기 엔진 제어부와 연결되어 엔진 제어부에서 인가되는 제어신호에 따라 분사시간이 제어되는 연료 분사장치로 이루어져 있는 자동차의 공회전 속도 제어장치 및 그 방법에 관한 것.When operating the air conditioner or the power steering device during idling to control the compensation operation of the engine according to the current idling speed, so as to improve the ride comfort of the car which decreases to the idling speed which increases in value; Operation of the air conditioner by using an engine speed detection unit for detecting an engine revolution, an engine idle detection unit for detecting an idle state of the engine by determining a gear shift state, and a signal variable according to an operation state of an air conditioner A sensing unit including an air conditioner detecting unit for determining a state, and a power steering unit operating detecting unit for determining an operating state of the power steering unit by using a signal variable according to an operating state of the power steering unit; It is connected to the sensing unit to determine whether the air conditioner or the power steering is operated in the idle state, and when the air conditioner or the power steering is operated to calculate the difference between the rotational speed and the target rotational speed of the currently rotating engine and compare with the set value If the calculated speed difference is greater than the set value, the engine does not perform a separate fuel injection operation until the engine speed drops to the target speed, and if the speed difference is less than the set value or the engine speed An engine controller which executes an injection operation to increase the engine speed only when the engine speed is smaller than the target engine speed; An idling speed control apparatus for a vehicle and a method thereof, comprising a fuel injector connected to the engine control unit and controlling an injection time according to a control signal applied from an engine control unit.

Description

Vehicle idling speed control device and method

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

제1도는 이 발명의 실시예에 따른 자동차의 공회전 속도 제어장치의 블럭도이고, 제2도는 이 발명의 실시예에 따른 자동차의 공회전 속도 제어방법의 동작순서도이다.1 is a block diagram of an idle speed control apparatus for a vehicle according to an embodiment of the present invention, and FIG. 2 is an operation flowchart of the idle speed control method for a vehicle according to an embodiment of the present invention.

Claims

Operation of the air conditioner by using an engine speed detection unit for detecting an engine revolution, an engine idle detection unit for detecting an idle state of the engine by determining a gear shift state, and a signal variable according to an operation state of an air conditioner A sensing unit including an air conditioner detecting unit for determining a state and a power steering unit operating detecting unit for determining an operating state of the power steering unit by using a signal variable according to an operating state of the power steering unit; Determines whether the air conditioner or the power steering device is operated in the idle state connected to the sensing unit, and calculates the difference between the rotational speed of the currently rotating engine and the target rotational speed when the air conditioner or the power steering device is operated. If the calculated speed difference is greater than the set value, the engine does not perform a separate fuel injection operation until the engine speed drops to the target speed, and if the speed difference is less than the set value or the engine speed An engine controller which executes an injection operation for increasing the engine speed only when the engine speed is smaller than the target engine speed; Idle speed control device of the vehicle consisting of a fuel injector is connected to the engine control unit and the injection time is controlled in accordance with a control signal applied from the engine control unit.

When the air conditioner is operated by judging the operating condition of the air conditioner, it reads the number of revolutions of the currently rotating engine, calculates a difference in the target engine speed from the current engine speed, and sets the calculated difference in engine speed. If it is larger than the set value, it is determined that the current engine speed does not fall below the set target speed, and the injection operation of the fuel is stopped.If the calculated engine speed difference is smaller than the set value, or When the rotational speed of the rotating engine is less than the target rotational speed of the vehicle is made of a method for controlling the injection operation to increase the idle speed to the target engine speed by operating the fuel injector.

※ Note: The disclosure is based on the initial application.