KR970046537A - Automatic shift control device having engine brake function during sudden deceleration and its method - Google Patents

Automatic shift control device having engine brake function during sudden deceleration and its method Download PDF

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Publication number
KR970046537A
KR970046537A KR1019950061956A KR19950061956A KR970046537A KR 970046537 A KR970046537 A KR 970046537A KR 1019950061956 A KR1019950061956 A KR 1019950061956A KR 19950061956 A KR19950061956 A KR 19950061956A KR 970046537 A KR970046537 A KR 970046537A
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KR
South Korea
Prior art keywords
vehicle
speed
engine brake
shift control
vehicle speed
Prior art date
Application number
KR1019950061956A
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Korean (ko)
Inventor
이성한
Original Assignee
전성원
현대자동차 주식회사
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Publication date
Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950061956A priority Critical patent/KR970046537A/en
Publication of KR970046537A publication Critical patent/KR970046537A/en

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Abstract

차량의 속력을 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 차속센서(10)와, 상기한 차속 센서로부터 입력되는 신호를 이용하여 차량의 속도를 감지한 뒤에, 차량의 속도가 급격하게 감속하는 경우에 순차적으로 다운 시프트가 이루어지도록 하기 위한 제어신호를 출력하는 마이크로 컨트롤러(20)와, 상기한 마이크로 컨트롤러로부터 입력되는 제어신호에 따라 유압이 동작되도록 함으로써 변속이 일어나도록 하는 시프트 밸브(30)를 포함하여 이루어지며, 차량의 속력이 급감속되는 경우에 순차적으로 다운 시프트가 이루어지도록하여 엔진 브레이크가 발생되도록 함으로써 제동특성을 향상시킬 수 있는 효과를 가진 급감속시 엔진 브레이크 기능을 갖는 자동변속 제어방치 및 그 방법을 제공한다.The vehicle speed sensor 10 detects the speed of the vehicle and converts it into an electrical signal and outputs the electrical speed. After detecting the speed of the vehicle using the signal input from the vehicle speed sensor, the speed of the vehicle decreases rapidly. In this case, the microcontroller 20 outputs a control signal to sequentially perform the downshift, and the shift valve 30 for shifting by causing the hydraulic pressure to operate according to the control signal input from the microcontroller. Automatic shift control with engine brake function during sudden deceleration with the effect of improving the braking characteristics by causing the engine brake to be sequentially downshifted when the speed of the vehicle is rapidly decelerated. And a method thereof.

Description

급감속시 엔진 브레이크 기능을 갖는 자동 변속 제어장치 및 그 방법Automatic shift control device having engine brake function during sudden deceleration and its method

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

제1도는 이 발명의 실시예에 따른 급감속시 엔진 브레이크 기능을 갖는 자동 변속 제어장치의 구성 회로도이고,1 is a configuration circuit diagram of an automatic shift control apparatus having an engine brake function during sudden deceleration according to an embodiment of the present invention.

제2도는 이 발명의 실시예에 따른 급감속시 엔진 브레이크 기능을 갖는 자동 변속 제어방법의 동작 순서도이다.2 is an operation flowchart of an automatic shift control method having an engine brake function during sudden deceleration according to an embodiment of the present invention.

Claims (4)

차량의 속력을 감지한 뒤에 이를 전기적인 신호로 변환하여 출력하는 차속센서와, 상기한 차속 센서로부터 입력되는 신호를 이용하여 차량의 속도를 감지한 뒤에, 차량의 속도가 급격하게 감속하는 경우에 순차적으로 다운 시프트가 이루어지도록 하기 위한 제어신호를 출력하는 마이크로 컨트롤러와, 상기한 마이크로 컨트롤러로부터 입력되는 제어신호에 따라 유압이 동작되도록 함으로써 변속이 일어나도록 하는 시프트 밸브를 포함하여 이루어지는 것을 특징으로 하는 급감속시 엔진 브레이크 기능을 갖는 자동 변속 제어장치.After detecting the speed of the vehicle and converting it into an electrical signal and outputting it, and detecting the speed of the vehicle by using the signal input from the vehicle speed sensor, when the speed of the vehicle rapidly decelerates sequentially And a microcontroller for outputting a control signal for downshifting, and a shift valve for shifting the hydraulic pressure according to the control signal input from the microcontroller. Automatic shift control with engine brake. 제1항에 있어서, 운전자가 급감속시 엔진 브레이크 기능을 갖는 자동 변속 제어장치를 필요에 따라 선택적으로 동작시킬 수 있는 동작 스위치를 더 포함하여 이루어지는 것을 특징으로 하는 급감속시 엔진 브레이크 기능을 갖는 자동 변속 제어장치.The method of claim 1, wherein the driver further comprises an operation switch capable of selectively operating the automatic transmission control device having an engine brake function during sudden deceleration as needed. Shift control. 제1항 또는 제2항에 있어서, 상기한 마이크로 컨틀롤러(20)는 내부에 애널로그/디지틀 컨버터와 메모리가 내장되어 있는 것을 특징으로 하는 급감속시 엔진 브레이크 기능을 갖는 자동 변속 제어장치.The automatic shift control apparatus according to claim 1 or 2, wherein the microcontroller (20) has an internal analog / digital converter and a memory therein. 동작이 시작되면, 모든 메모리 변수를 초기화시키는 단계와, 동작 스위치로부터 입력되는 신호를 읽어들여 동작 스위치가 온되었는지를 판단하는 단계와, 동작 스위치가 온된 경우에 차속센서로부터 입력되는 신호를 읽어들여 차속을 감지하는 단계와, 감지된 차속으로부터 차속이 급격하게 감속되고 있는 지를 판단하는 단계와, 차속이 급감속하는 경우에는 순차적으로 다운 시프트가 이루어지도록 함으로써 엔진 브레이크가 발생되도록하여 제동특성을 높이는 단계를 포함하여 이루어지는 것을 특징으로 하는 급감속시 엔진 브레이크 기능을 갖는 자동 변속 제어방법.When the operation is started, initializing all memory variables, reading a signal input from the operation switch to determine whether the operation switch is on, and reading a signal input from the vehicle speed sensor when the operation switch is turned on Detecting the vehicle speed; determining whether the vehicle speed is rapidly decelerated from the detected vehicle speed; and increasing the braking characteristic by causing the engine brake to occur by sequentially downshifting when the vehicle speed is rapidly decelerated. Automatic shift control method having an engine brake function during rapid deceleration, characterized in that made.
KR1019950061956A 1995-12-28 1995-12-28 Automatic shift control device having engine brake function during sudden deceleration and its method KR970046537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950061956A KR970046537A (en) 1995-12-28 1995-12-28 Automatic shift control device having engine brake function during sudden deceleration and its method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950061956A KR970046537A (en) 1995-12-28 1995-12-28 Automatic shift control device having engine brake function during sudden deceleration and its method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100335949B1 (en) * 1999-12-10 2002-05-10 이계안 Auto transmission control method for down shifting by reduction of speed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100335949B1 (en) * 1999-12-10 2002-05-10 이계안 Auto transmission control method for down shifting by reduction of speed

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