KR970046530A - Transmission stage control method of automatic transmission - Google Patents

Transmission stage control method of automatic transmission Download PDF

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Publication number
KR970046530A
KR970046530A KR1019950061905A KR19950061905A KR970046530A KR 970046530 A KR970046530 A KR 970046530A KR 1019950061905 A KR1019950061905 A KR 1019950061905A KR 19950061905 A KR19950061905 A KR 19950061905A KR 970046530 A KR970046530 A KR 970046530A
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KR
South Korea
Prior art keywords
shift
deceleration
gear
driving
calculated
Prior art date
Application number
KR1019950061905A
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Korean (ko)
Inventor
장창욱
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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Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950061905A priority Critical patent/KR970046530A/en
Publication of KR970046530A publication Critical patent/KR970046530A/en

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Abstract

본 발명은 자동변속기를 사용하는 자동차에서 변속단의 제어방법에 관한 것으로, 운행되는 자동차의 브레이크 페달 구동이 검출되면 저단의 변속비로 자동으로 쉬프트(Shift)되도록 하여 엔진 브레이크의 효과를 향상시키도록 한 것이다.The present invention relates to a control method of a shift stage in a vehicle using an automatic transmission. When a brake pedal drive of a driving vehicle is detected, the shift speed is automatically shifted to a low gear ratio to improve the effect of the engine brake. will be.

본 발명은 자동변속기를 장착한 자동차의 운행 상태에서 브레이크 페달의 구동 신호를 검출하면 감속되는 주행속도의 비에 따라 현재 운행 모드로 선택된 기어의 변속단보다 저단의 기어의 자동으로 쉬프트시켜 고속주행 모드에서의 급감속시 엔진 브레이크 효과를 통해 제동거리를 단축시켜 운행에 신뢰성을 제공한다.According to the present invention, when a driving signal of a brake pedal is detected in a driving state of an automobile equipped with an automatic transmission, a gear of a lower gear than the gear of the gear selected as the current driving mode is automatically shifted according to the ratio of the driving speed which is decelerated. The engine braking effect reduces the braking distance during sudden deceleration of the engine and provides reliability to the operation.

Description

자동변속기의 변속단 제어방법Transmission stage control method of automatic transmission

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

제1도는 본 발명에 따른 자동변속기의 변속단 제어장치 구성도,1 is a block diagram of a shift stage control apparatus for an automatic transmission according to the present invention;

제2도는 제1도에 도시된 본 발명에서 변속단 제어방법을 실현하기 위한 흐름도,2 is a flowchart for realizing a shift stage control method in the present invention shown in FIG.

제3도는 본 발명에 따른 변속 선택에 대한 흐름도.3 is a flow chart for shift selection in accordance with the present invention.

Claims (1)

자동변속기의 제어방법에 있어서, 운행되는 자동차의 주행속도와 도로틀 밸브의 개도 각도를 연속적으로 검출하여 운행 모드를 제어하는 상태에서 브레이크 페달의 구동 여부를 연속적으로 검출하는 제1과정과, 상기 제1과정에서 상기 제1과정에서 브레이크 페달의 구동을 검출하면 브레이크의 구동에 의해 발생되는 감속도를 산출할 후 산출된 감속도가 설정된 제1변속에 이상인지의 여부를 판단하는 제2과정과, 상기 제2과정에서 산출된 감속도가 설정된 제1변속에 해당하는 레벨이면 현재 선택된 기어의 레벨보다 최저단이 기어를 쉬프팅시키고, 산출된 감속도가 상기 제1변속에 해당하지 않으면 제1변속과 제2변속의 범위에 포함되는지의 여부를 판단하는 제3과정과, 상기 제3과정에서 산출된 감속도가 제1변속과 제2변속의 범위에 포함되면 현재의 선택된 변속단 보다 소정의 저단을 선택하여 쉬프트시키는 제4과정가, 상기 제3과정에서 감속도가 제1변속과 제2변속의 범위에 포함되지 않으면 제3변속에 해당하는 값인지를 판단하는 제4과정과, 상기 제4과정에서 감속도가 제3변속에 해당하는 값이면 현재 선택된 기어의 단수보다 제1단의 저단을 선택하여 기어를 쉬프트시키는 제5과정과, 상기 제1과정에서 브레이크 구동을 검출하지 못하거나 산출된 감속도가 자동변속을 위해 설정한 기준 값의 범위에 포함되지 않으면 일반적인 변속패턴을 유지하는 제6과정을 포함하는 것을 특징으로 하는 자동변속기의 변속단 제어방법.A control method of an automatic transmission, comprising: a first step of continuously detecting whether a brake pedal is driven in a state of controlling a driving mode by continuously detecting a traveling speed of a driving vehicle and an opening angle of a throttle valve; A second step of determining whether the calculated deceleration is abnormal to the set first shift after calculating the deceleration generated by the driving of the brake when the driving of the brake pedal is detected in the first step in the first step; If the deceleration calculated in the second process is a level corresponding to the set first shift, the lowest stage shifts the gear than the level of the currently selected gear, and if the calculated deceleration does not correspond to the first shift, A third process of determining whether the second gear shift is included in the range of the second shift, and if the deceleration calculated in the third process is included in the range of the first shift and the second shift, A fourth process of selecting and shifting a predetermined lower stage from the selected shift stage; and if the deceleration is not included in the range of the first shift and the second shift in the third step, determining whether the shift corresponds to the third shift. And a fifth step of shifting the gear by selecting a lower end of the first stage than the number of stages of the currently selected gear when the deceleration is a value corresponding to the third shift in the fourth process, and brake driving in the first process. And a sixth process of maintaining a general shift pattern if the detected deceleration or the calculated deceleration does not fall within the range of the reference value set for the automatic shift.
KR1019950061905A 1995-12-28 1995-12-28 Transmission stage control method of automatic transmission KR970046530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950061905A KR970046530A (en) 1995-12-28 1995-12-28 Transmission stage control method of automatic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950061905A KR970046530A (en) 1995-12-28 1995-12-28 Transmission stage control method of automatic transmission

Publications (1)

Publication Number Publication Date
KR970046530A true KR970046530A (en) 1997-07-26

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Application Number Title Priority Date Filing Date
KR1019950061905A KR970046530A (en) 1995-12-28 1995-12-28 Transmission stage control method of automatic transmission

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KR (1) KR970046530A (en)

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