KR0123021B1 - A-t-c gear changing device - Google Patents

A-t-c gear changing device

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Publication number
KR0123021B1
KR0123021B1 KR1019940027997A KR19940027997A KR0123021B1 KR 0123021 B1 KR0123021 B1 KR 0123021B1 KR 1019940027997 A KR1019940027997 A KR 1019940027997A KR 19940027997 A KR19940027997 A KR 19940027997A KR 0123021 B1 KR0123021 B1 KR 0123021B1
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KR
South Korea
Prior art keywords
stage
control signal
magnet
magnet valves
gear
Prior art date
Application number
KR1019940027997A
Other languages
Korean (ko)
Other versions
KR960013749A (en
Inventor
강성식
최춘규
Original Assignee
김영환
현대전자산업주식회사
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Application filed by 김영환, 현대전자산업주식회사 filed Critical 김영환
Priority to KR1019940027997A priority Critical patent/KR0123021B1/en
Publication of KR960013749A publication Critical patent/KR960013749A/en
Application granted granted Critical
Publication of KR0123021B1 publication Critical patent/KR0123021B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H2057/0081—Fixing of, or adapting to transmission failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1232—Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
    • F16H2061/1268—Electric parts of the controller, e.g. a defect solenoid, wiring or microprocessor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

In case a 1st rotary switch(RS1) of a selection part(10) selects R(reverse) step, a control part(20) accepts the selection of R step only in a 9th pin of PAL. An internal logic by the selected R step and in the other input pins accepts a low signal, recognizing R step selected. And in case the selection of gear shifting is recognized, in order to output a magnet valve control signal, it scans a magnet valve control signal corresponding to the gear shifting step and produces approved control signal. As the selected gear shifting step is R step, the corresponding magnet valve control signal accepts only the magnet valves(A)(D). The control signal is transferred to a drive part(30).

Description

에이-시-티(ACT)의 비상시 기어변속장치ACT emergency gear shift

제1도는 본 발명에 의한 에이-시-티(ACT)의 비상시 기어변속장치 회로도.1 is an emergency gear transmission circuit diagram of the ACT (A) according to the present invention.

제2도는 본 발명에서 ACT의 비상시 기어변속과정을 설명하기 위한 흐름도.Figure 2 is a flow chart for explaining the emergency gear shift process of the ACT in the present invention.

제3도의 (a)는 상용차 변속기어의 위치도, (b)는 피스톤의 상태도.(A) is a position figure of a commercial vehicle transmission gear, (b) is a state figure of a piston.

제4도는 본 발명에서 마그네트밸브동작과 변속관계를 나타낸 도표.4 is a diagram showing a magnet valve operation and a shift relationship in the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 선택부 20 : 제어부10: selection unit 20: control unit

30 : 구동부 RS1, RS2 : 제1 및 제2로우터리스위치30: driving unit RS1, RS2: first and second rotary switches

TR1-TR4 : 제1내지 제4트랜지스터TR1-TR4: 1st to 4th transistor

PAL : 피-에이-엘(Programmable array logic)PAL: Programmable array logic

A,B,C,D : 제1내지 제4마그네트 벨브A, B, C, D: 1st to 4th Magnet Valve

본 발명은 상용차에 장착되는 에이-시-티 (ACT(Air Controlled Transmi- ssion))의 비상시 기어변속에 관한 것으로, 특히 에이-시-티 시스템에 오류(fail)가 발생된 경우에도 공기압을 이용해 변속기어를 반 강제적으로 변속시킬 수 있도록 하는 기어변속 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency gear shift of an Air Controlled Transition (ACT) installed in a commercial vehicle. In particular, the present invention relates to an air gear shift using air pressure even when a failure occurs in the A-C system. The present invention relates to a gear shifting device capable of shifting a transmission gear semi-forcefully.

종래에 에이-시-티 시스템 및 전자제어유니트(ECU) 또는 센서에 오류가 발생되면, 에이-시-티 시스템이 정상적으로 동작하지 못하는데, 이때 다른 방법으로 기어를 변속시킬 수 있는 기어변속장치를 제공해 주지 못하므로 변속제어를 위한 에이-시-티 시스템의 신뢰성 및 안정성이 떨어지는 등의 문제점이 야기 되었다.Conventionally, when an error occurs in the A-S-T system and the electronic control unit (ECU) or the sensor, the A-S-T system does not operate normally. In this case, a gear transmission that can shift gears in other ways is provided. Since it is not known, problems such as the reliability and stability of the A-C system for shift control are deteriorated.

본 발명은 상기와 같은 종래의 문제점을 해결하고자 이루어진 것으로서, 그 목적은 에이-시-티 시스템에 오류가 발생되면, 공기압을 이용해 변속기어를 반 강제적으로 변속시킬 수 있도록 하여 에이-시-티 시스템의 신뢰성 및 안정성을 향상시킬 수 있도록 한 에이-시-티의 비상시 기어변속장치를 제공하는데 있다.The present invention has been made to solve the conventional problems as described above, the object of the A-C-T system, if the error occurs, by using the air pressure to shift the gear shift semi-forced A-C-T system In order to improve the reliability and stability of the A-C-T is to provide an emergency gear transmission.

이러한 본 발명의 목적을 달성하기 위한 기술적인 수단은, 후진(R)단과 1단을 선택하기 위한 제1로터리 스위치와 2단 내지 5단을 선택하기 위한 제2로터리 스위치로 이루어져 기어변속을 선택하는 선택부와; 상기 선택부에서 선택된 기어변속단에 대응하는 다수개의 마그네트밸브를 제어하기 위한 데이터를 내장한 메모리를 구비하고 상기 선택부에서 선택된 기어변속단에 대응되게 상기 다수개의 마그네트밸브 제어신호를 발생하는 제어부와; 상기 다수개의 마그네트밸브를 구동시키기 위한 제1내지 제4트랜지스터와 각 트랜지스터에 직렬로 연결된 제1 내지 제4마그네트밸브를 구비하고 상기 제어부로부터 발생된 제어신호에 따라 상기 제1내지 제4마그네트밸브를 선택적으로 구동시키는 구동부로 이루어진다.Technical means for achieving the object of the present invention comprises a first rotary switch for selecting the reverse (R) stage and the first stage, and a second rotary switch for selecting the second to fifth stages to select the gear shift. A selection unit; A control unit having a memory having data for controlling a plurality of magnet valves corresponding to the gear shift stage selected by the selection unit and generating the plurality of magnet valve control signals corresponding to the gear shift stage selected by the selection unit; ; First to fourth magnet valves for driving the plurality of magnet valves and first to fourth magnet valves connected in series to each transistor, and the first to fourth magnet valves are connected according to a control signal generated from the controller. It consists of a drive unit for selectively driving.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

제1도는 본 발명에 의한 에이-시-티의 비상시 기어변속장치 회로도로서, 이에 도시된 바와 같이, 후진(R)단과 1단을 선택하기 위한 제1로터리 스위치(RS1)와 2단 내지 5단을 선택하기 위한 제2로터리 스위치(RS2)로 이루어져 기어변속단을 선택하는 선택부(10)와; 상기 선택부(10)에서 선택된 기어변속단에 대응하는 다수개의 마그네트밸브를 제어하기 위한 데이터를 내장한 메모리를 구비하고 상기 선택부(10)에서 선택된 기어변속단에 대응되게 상기 다수개의 마그네트 밸브 제어 신호를 발생하는 제어부(20)와; 상기 다수 개의 마그네트밸브를 구동시키기 위한 제1 내지 제4트랜지스터(TRI-TR4)와 각 트랜지스터에 직렬로 연결된 제1 내지 제4마그네트밸브(A-D)를 구비하고 상기 제어부(20)로부터 발생된 제어신호에 따라 상기 제1 내지 제4마그네트밸브(A-D)를 선택적으로 구동시키는 구동부(3)로 구성된다.1 is an emergency gear shift circuit diagram of an A-C-T according to the present invention. As shown therein, a first rotary switch RS1 and two to five stages for selecting a reverse stage and a first stage are illustrated. A selection unit 10 including a second rotary switch RS2 for selecting a gear shift stage; The plurality of magnet valves are controlled to include a memory having data for controlling the plurality of magnet valves corresponding to the gear shift stage selected by the selection unit 10 and to correspond to the gear shift stage selected by the selection unit 10. A control unit 20 for generating a signal; First to fourth transistors TRI-TR4 for driving the plurality of magnet valves and first to fourth magnet valves AD connected in series with each transistor, and control signals generated from the controller 20. As a result it is composed of a drive unit (3) for selectively driving the first to fourth magnet valve (AD).

제2도는 본 발명의 동작 설명을 위한 플로우차트이고, 제3도의 (a)는 상용차 변속기어의 위치도, (b)는 피스톤(Piston)의 상태도이고, 제4도는 마그네트밸브동작과 변속관계를 나타낸 도표로서, 제1도 내지 제4도에 따라 본 발명의 작용효과를 설명하면 다음과 같다.2 is a flowchart for explaining the operation of the present invention, Figure 3 (a) is a position diagram of a commercial vehicle transmission gear, (b) is a state diagram of a piston (Piston), Figure 4 is a relationship between the magnet valve operation and the shift As shown in the diagram, explaining the operation and effect of the present invention according to Figures 1 to 4 as follows.

먼저 기존의 ACT시스템, 전자제어유니트, 센서 등에 의해 기어변속을 행하던중 상기 ACT 시스템 또는 전자제어유니트 또는 센서에 이상이 발생하여 기어변속이 불가능할 경우, 본 발명에서 새로이 구현되며 제안된 비상장치(Emergency Unit)의 일부인 선택부(10)내의 로우터리스위치(RS1),(RS2)를 조작하면, 제어부(20)는 선택된 기어변속단을 인지하고 그에 대응하는 마그네트밸브(A),(B),(C),(D) 제어신호를 발생하여 구동부(30)로 하여금 기어변속이 이루어지도록 한다.First, when gear shifting is impossible due to an abnormality in the ACT system or the electronic control unit or the sensor while shifting the gear by the existing ACT system, the electronic control unit, the sensor, or the like, the newly implemented and proposed emergency device (Emergency) When the rotary switches RS1 and RS2 in the selection unit 10 that are part of the unit are operated, the control unit 20 recognizes the selected gear shift stage and corresponding magnet valves A, B, and ( C), (D) generates a control signal to allow the drive unit 30 to shift gears.

여기서 상기 마그네트밸브(A-D)가 조작되면, 제3도에 도시된 피스톤은 공압에 의해 (나)에서와 같이 X,Y축으로 움직여 변속기어를 이동시키게 된다.Here, when the magnet valve (A-D) is operated, the piston shown in Figure 3 is moved to the X, Y axis by the pneumatic to move the transmission gear as in (B).

예를 들어 변속기어가 R(REAR;후진)단인 경우 제4도의 도표에서와 같이 마그네트밸브(A)와 (D)가 온(ON)되며, 변속기어가 N(Neutral)단인 경우 마그네트밸브(A),(B),(C),(D)를 모두 온(ON)되는데, 이렇게 동작하는 마그네트 밸브(A-D)의 선택적인 온/오프에 따라 기어가 X축 또는 Y축으로 이동된다. 즉 제1 및 제2마그네트밸브(A)(B)가 온(ON)이 하면, 기어가 X축 중립에 위치하게 되고, 제3 및 제4마그네트밸브(C)(D)가 온이 되면, 기어는 Y축 중립에 위치하게 된다.For example, when the gearbox is in R (reverse) stage, as shown in the diagram of Fig. 4, the magnet valves (A) and (D) are ON, and when the gearbox is in N (Neutral) stage, the magnet valve (A), (B), (C) and (D) are all turned ON, and the gear is moved to the X-axis or Y-axis according to the selective on / off of the magnet valve AD operating in this way. In other words, when the first and second magnet valves (A) and (B) are turned on, the gear is positioned at the X-axis neutral, and when the third and fourth magnet valves (C) and (D) are turned on, The gear is in Y axis neutral.

이하에서 변속단의 선택과 마그테트 밸브 온/오프 동작까지를 순서에 맞게 좀더 상세히 설명하면 다음과 같다.Hereinafter, the shift stage selection and the magnet valve on / off operation will be described in more detail in order.

먼저, 선택부(10)내의 제1로우터리스위치(RS1)의해 R(후진)단을 선택한 경우(단계1), 제어부(20)는 선택된 R단에 의해 내부 로직인 PAL의 9번핀에만 하이신호가 인가되고, 그 이외의 입력핀에는 로우신호가 인가되므로 이것으로 R단이 선택되었음을 인지하게 되고, 이와 같이 기어변속단이 선택되었음을 인지하면 그에 맞는 마그네트 밸브 제어신호를 출력하기 위해서 내부 메모리에 저장된 기어변속단에 대응하는 마그네트 밸브 제어신호 데이터를 스캔하여 해당 제어신호를 인출한다. 여기서 선택된 기어변속단이 R단이므로 그에 해당하는 마그네트 밸브 제어신호는 제4도에 도시된 바와 같이 마그네트 밸브(A)(D)만 온 시키는 제어신호가 되며, 이렇게 발생되는 제어신호는 구동부(30)에 전달된다(단계 2). 그러면 구동부(30)는 제1 및 제4트랜지스터(TR1)(TR4)를 턴온시켜(단계 3)제1 및 제4마그네트밸브(A)(D)를 구동시키게 된다(단계 4)(제4도 표 참조). 이리하여 피스톤은 제3도의 (a)에 도시된 바와 같이, 제1 및 제4 마그네트밸브(A)(D)의 동작으로 공압에 의해 이동되어(단계 5)변속기어가 R(후진)단으로 이동되는 것이다(단계 6).First, when the R (reverse) stage is selected by the first rotary switch RS1 in the selector 10 (step 1), the controller 20 selects a high signal only on pin 9 of the internal logic PAL by the selected R stage. Is applied and other low input signal is applied to the other input pin, so it is recognized that the R stage is selected, and when the gear shift stage is selected as such, it is stored in the internal memory to output the corresponding magnet valve control signal. The magnet valve control signal data corresponding to the gear shift stage is scanned to retrieve the control signal. Since the gear shift stage selected here is the R stage, the corresponding magnet valve control signal becomes a control signal for turning on only the magnet valves (A) and (D), as shown in FIG. (Step 2). Then, the driving unit 30 turns on the first and fourth transistors TR1 and TR4 (step 3) to drive the first and fourth magnet valves A and D (step 4) (FIG. 4). See table). Thus, the piston is moved by pneumatic operation in the operation of the first and fourth magnet valves (A) and (D), as shown in FIG. (Step 6).

다른예로서, 제2로우터리스위치(RS2)에 의해 3단이 선택된 경우(단계 1), 제어부(20)는 제4도에 도시된 바와 같이 기어변속단이 3단으로 이동되도록 제1 내지 제3마그네트 밸브(A-C)를 구동시키는 제어신호를 발생하게 된다(단계 2). 그러면 구동부(30)는 제어부(20)로부터 전달된 제어신호에 의해 제1 내지 제3트랜지스터(TR1-TR3)를 턴온시켜(단계 3) 제1내지 제3마그네트밸브(A-C)를 구동시키게 된다(단계 4). 이리하여 피스톤은 제3도의 (b)에 도시된 바와 같이 제1 내지 제3마그네트밸브(A-C)의 동작에 의한 공압으로 이동되어(단계 5) 기어변속단이 3단으로 이동되는 것이다(단계 6).As another example, when the third stage is selected by the second rotary switch (RS2) (step 1), the control unit 20 is the first to the first gear shift so that the gear shift stage is moved to the third stage as shown in FIG. A control signal for driving the 3 magnet valve AC is generated (step 2). Then, the driving unit 30 turns on the first to third transistors TR1 to TR3 by the control signal transmitted from the control unit 20 (step 3) to drive the first to third magnet valves AC (step 3). Step 4). Thus, as shown in (b) of FIG. 3, the piston is moved to pneumatic pressure by the operation of the first to third magnet valves AC (step 5) so that the gear shift stage is moved to the third stage (step 6). ).

이렇게 함으로써 ACT 시스템, 전자제어유니트, 센서 등에 오류가 발생된 경우에도 반 강제적으로 기어변속이 가능해지는 것이다.This makes it possible to forcibly shift gears even when an error occurs in the ACT system, electronic control unit, or sensor.

한편 제 1 및 제2로우터리스위치(RS1)(RS2)에 의해 1단, 2단, 4단, 5단, 그리고 N(NATURAL)단이 각각 선택된 경우에도 전술한 R(후진)단 및 3단의 동작방식과 동일한 방식으로 기어변속이 이루어지며, 그의 자세한 설명은 생략한다.On the other hand, the first stage, the second stage, the fourth stage, the fifth stage, and the N (NATURAL) stage are selected by the first and second rotary switches RS1 (RS2), respectively. In the same manner as the operation of the gear shift is made, a detailed description thereof will be omitted.

이상에서와 같이 본 발명은 에이-시-티 시스템에 오류가 발생된 경우에도 공압을 이용해 변속기어를 반 강제적으로 변속시켜 줄 수 있으므로 에이-시-티 시스템의 신뢰성 및 안정성 향상을 도모해주는 효과가 있다.As described above, the present invention can improve the reliability and stability of the A-S-T system because the transmission gear can be forcibly shifted by using pneumatic pressure even when an error occurs in the A-S-T system. have.

Claims (1)

후진(R)단과 1단을 선택하기 위한 제1로터리스위치(RS1)와 2단 내지 5단을 선택하기 위한 제2로터리스위치(RS2)로 이루어져 기어변속단을 선택하는 선택부(10); 상기 선택부(10)에서 선택된 기어변속단에 대응하는 다수개의 마그네트 밸브를 제어하기 위한 데이터를 내장한 메모리를 구비하고 상기 선택부(10)에서 선택된 기어변속단에 대응되게 상기 다수개의 마그네트 밸브 제어신호를 발생하는 제어부(20)와; 상기 다수개의 마그네트 밸브를 구동시키기 위한 제1 내지 제4트랜지스터(TR1-TR4)와 각 트랜지스터에 직렬로 연결된 다수개의 마그네트 밸브(A-D)를 구비하고, 상기 제어부(20)로부터 발생된 제어신호에 따라 상기 다수개의 마그네트 밸브(A-D)를 선택적으로 구동시키는 구동부(30)를 포함하여 구성된 것을 특징으로 하는 에이-시-티(ACT)의 비상시 기어변속장치.A selection unit 10 comprising a first rotary switch RS1 for selecting the reverse stage R and a first stage, and a second rotary switch RS2 for selecting the second stage to the fifth stage; The plurality of magnet valves are controlled to include a memory having data for controlling the plurality of magnet valves corresponding to the gear shift stage selected by the selection unit 10 and to correspond to the gear shift stage selected by the selection unit 10. A control unit 20 for generating a signal; First to fourth transistors TR1 to TR4 for driving the plurality of magnet valves and a plurality of magnet valves AD connected in series to each transistor, and according to a control signal generated from the controller 20. Emergency gear transmission of the ACT-A (T) characterized in that it comprises a drive unit for selectively driving the plurality of magnet valves (AD).
KR1019940027997A 1994-10-28 1994-10-28 A-t-c gear changing device KR0123021B1 (en)

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KR0123021B1 true KR0123021B1 (en) 1997-11-11

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