KR19980056427A - High Temperature Prevention Method of Hydraulic Operated Automatic Transmission - Google Patents
High Temperature Prevention Method of Hydraulic Operated Automatic Transmission Download PDFInfo
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- KR19980056427A KR19980056427A KR1019960075697A KR19960075697A KR19980056427A KR 19980056427 A KR19980056427 A KR 19980056427A KR 1019960075697 A KR1019960075697 A KR 1019960075697A KR 19960075697 A KR19960075697 A KR 19960075697A KR 19980056427 A KR19980056427 A KR 19980056427A
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Abstract
본 발명은 유압작동식 자동변속기의 고유온방지방법에 관한 것으로, 엔진(10)의 출력을 자동으로 변속하는 변속기(20)가 구비된 자동변속차량에 있어서, 스로틀 개도량을 검출하는 스로틀센서(30)와, 엔진회전수를 검출하는 엔진회전수센서(40)와, 변속기(20)에 작용하는 유온을 검출하는 유온센서(50)와, 토크컨버터의 터빈회전수를 검출하는 터빈회전수센서(60)와, 상기 유온센서 및 터빈회전수센서에서 검출된 신호를 근거로 고온을 판정하는 고온판정수단(70)과, 상기 고온판정수단(70)에서 고온으로 판정될 경우 변속기(20)를 제어하는 TCU(80)와, 상기 TCU(80)에서 고온으로 판정된 정보데이터가 입력될 경우 엔진토크제한수단(100)을 제어하는 ECU(90)로 구성되어 엔진열부하가 과부하상태로 될 경우 엔진 토크력을 감소시킴.The present invention relates to a method for preventing the high temperature of a hydraulically actuated automatic transmission. In an automatic transmission vehicle having a transmission (20) for automatically shifting the output of an engine (10), a throttle sensor for detecting an throttle opening amount ( 30), the engine speed sensor 40 for detecting the engine speed, the oil temperature sensor 50 for detecting the oil temperature acting on the transmission 20, and the turbine speed sensor for detecting the turbine speed of the torque converter. 60, the high temperature judging means 70 for determining the high temperature based on the signals detected by the oil temperature sensor and the turbine speed sensor, and the transmission 20 when the high temperature judging means 70 determines the high temperature. TCU 80 for controlling and ECU 90 for controlling the engine torque limiting means 100 when the information data determined to be high temperature in the TCU 80 is input, the engine when the heat load of the engine is overloaded Reduces torque
Description
본 발명은 유압작동식 자동변속기에 관한 것으로, 특히 엔진에 과부하가 걸려 소정시간 동안 온도가 상승될 경우 엔진 토크력을 감소시켜 오일을 감온시키도록 하는 유압작동식 자동변속기의 고유온방지장치에 관한 것이다.The present invention relates to a hydraulically-operated automatic transmission, and more particularly, to a high temperature prevention device of a hydraulically-operated automatic transmission to reduce the engine torque and reduce the oil when the temperature is increased for a predetermined time due to the overload of the engine. will be.
종래의 유압작동식 자동변속기의 고유온방지장치는 스로틀개도수단과, 엔진회전수 검출수단과, 차속검출수단과 검출된 스로틀개도, 엔진회전수와 차속을 근거로 유압작동식 자동변속기에 관한 열부하가 과부하사태인지 안니지를 판정하는 과부하상태판정수단과, 과부하상태라고 판정된 경우 엔진토크를 제한하는 엔진토크제한수단으로 구성된 일본국 특개평 7-317578가 제시된 바 있다.The conventional high temperature prevention device of a hydraulically-operated automatic transmission includes a throttle opening means, an engine speed detecting means, a vehicle speed detecting means and a detected throttle opening degree, and a heat load related to a hydraulically operated automatic transmission based on the engine speed and the vehicle speed. Japanese Patent Laid-Open No. 7-317578 has been presented, which consists of an overload condition determining means for determining whether or not an overload condition exists, and an engine torque limiting means for limiting engine torque when it is determined to be overloaded.
이와 같이 구성된 종래기술은 고온시 발생하는 불구합의 해소를 위한 고온변소맵 응용기술에 대한 대안으로 제안된 것으로 판단된다. 다시말해 고온에 의한 엔진 과부하시 자동적으로 변소맵을 수정하는 자동변속기용 변속제어장치에 대하여 강제적으로 엔진 토크를 저감시킴으로써 운전가 다운 시프트를 위한 조작을 하게끔 유도하게 된다.The prior art configured as described above is considered to have been proposed as an alternative to the application of high temperature saturation map for the solution of impairment occurring at high temperature. In other words, for a shift control device for an automatic transmission that automatically corrects a shift map when the engine is overloaded due to high temperature, the driving force is reduced to induce the operation for downshift.
그러나 종래 구성에 의한 고유온방지장치는 엔진토크를 제한하는 구체적인 방법이 제시되지 못하고 있다.However, in the conventional high temperature prevention device, a specific method for limiting engine torque has not been presented.
본 발명은 이러한 점을 감안하여 안출된 것으로, 특히 유압작동식 자동변속기의 고유온방지를 위해서 엔진 열부하가 심한 상태가 소정시간 지속될 엔진토크 감소를 위한 구체적인 방법을 제시함으로써 실용화시킬 수 있도록 하는 유압작동식 자동변속기의 고유온방지방법을 제공하는데 목적이 있다.The present invention has been made in view of this point, and in particular, in order to prevent the high temperature of the hydraulically-operated automatic transmission, the hydraulic operation that can be put to practical use by presenting a specific method for reducing engine torque that will be maintained for a predetermined period of time with a high engine heat load. It is an object of the present invention to provide a high temperature prevention method of an automatic transmission.
이러한 목적을 달성하기 위한 본 발명의 유압작동식 자동변속기의 고유온방지방법은 스로틀개도수단과, 엔진회전수 검출수단과, 차속검출수단과 검출된 스로틀개도, 엔진회전수와 차속을 근거로 유압작동식 자동변속기에 관한 열부하가 과부하사태인지 안니지를 판정하는 과부하상태판정수단과, 과부하상태라고 판정된 경우 엔진토크를 제한하는 엔진토크제한수단으로 구성으로 된 고유온 방지장치에 있어서, 변속기에 관한 열부하가 과부하상태라고 판정될 경우 엔진에 흡입되는 공기량을 저감, 엔진에 공급되는 연료량을 저감, 엔진의 기통수중 일부를 휴통, 엔진의 점화시기를 진각 등 어느하나를 제어하여 엔진토크를 제한토록 함을 특징으로 한다.The high temperature prevention method of the hydraulically-operated automatic transmission of the present invention for achieving this object is based on the throttle opening means, the engine speed detecting means, the vehicle speed detecting means and the detected throttle opening, the engine speed and the vehicle speed A high temperature prevention device comprising: an overload condition determining means for determining whether or not a heat load of an actuated automatic transmission is an overload situation; and an engine torque limiting means for limiting engine torque when it is determined that the overload is determined. When it is determined that the heat load is overloaded, the engine torque is limited by controlling the amount of air inhaled into the engine, reducing the amount of fuel supplied to the engine, closing some of the engine's cylinder water, and advancing the engine's ignition timing. It is characterized by.
이러한 방법에 의하면, 본 발명은 변속기에 관한 열부하가 과부하상태라고 판정될 경우 엔진에 흡입되는 공기량 저감, 엔진에 공급되는 연료량 저감, 엔진의 기통수중 일부 휴통, 엔진의 점화시기 진각 등 어느하나를 제어하여 엔진토크를 실질적으로 제한함으로써 엔진토크를 감소시킬 수 있게 된다.According to this method, the present invention controls any one of reducing the amount of air sucked into the engine, reducing the amount of fuel supplied to the engine, stopping some of the cylinder water, and advancing the ignition timing of the engine when it is determined that the heat load on the transmission is overloaded. Therefore, the engine torque can be reduced by substantially limiting the engine torque.
도1은 본 발명의 유압작동식 자동변속기의 고유온방지장치를 보인 회로도,1 is a circuit diagram showing a high temperature preventing device of the hydraulically operated automatic transmission of the present invention,
도2는 본 발명의 고유온방지방법을 설명하기 위한 순서도.Figure 2 is a flow chart for explaining the high temperature prevention method of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10:엔진 20:변속기10: engine 20: transmission
30:스로틀센서 40:엔진회전수센서30: Throttle sensor 40: Engine speed sensor
50:유온센서 60:터빈회전수센서50: oil temperature sensor 60: turbine speed sensor
70:고온판정수단 80:TCU70: high temperature determination means 80: TCU
90:ECU 100:엔진토크제한수단90: ECU 100: Engine torque limiting means
이하, 본 발명의 바람직한 실시예를 첨부된 도면을 통해 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도1은 본 발명에 따른 고유온 방지장치를 보인 구성도로써,엔진(10)의 출력을 자동으로 변속하는 변속기(20)가 구비된 자동변속차량에 있어서, 스로틀 개도량을 검출하는 스로틀센서(30)와, 엔진회전수를 검출하는 엔진회전수센서(40)와, 변속기(20)에 작용하는 유온을 검출하는 유온센서(50)와, 토크컨버터의 터빈회전수를 검출하는 터빈회전수센서(60)와, 상기 유온센서 및 터빈회전수센서에서 검출된 신호를 근거로 고온을 판정하는 고온판정수단(70)과, 상기 고온판정수단(70)에서 고온으로 판정될 경우 변속기(20)를 제어하는 TCU(80)와, 상기 TCU(80)에서 고온으로 판정된 정보데이터가 입력될 경우 엔진토크제한수단(100)을 제어하는 ECU(90)로 구성된다.1 is a block diagram showing a high temperature prevention apparatus according to the present invention, in an automatic transmission vehicle having a transmission 20 for automatically shifting the output of an engine 10, a throttle sensor for detecting an opening amount of a throttle ( 30), the engine speed sensor 40 for detecting the engine speed, the oil temperature sensor 50 for detecting the oil temperature acting on the transmission 20, and the turbine speed sensor for detecting the turbine speed of the torque converter. 60, the high temperature judging means 70 for determining the high temperature based on the signals detected by the oil temperature sensor and the turbine speed sensor, and the transmission 20 when the high temperature judging means 70 determines the high temperature. TCU 80 to control, and ECU 90 for controlling the engine torque limiting means 100 when the information data determined to be high temperature in the TCU 80 is input.
상기 엔진토크제한수단(100)은 스로틀엑츄에이터(101), 연료조절기(102) 및 점화시기 조절기(103)로 구성된다.The engine torque limiting means 100 includes a throttle actuator 101, a fuel regulator 102, and an ignition timing controller 103.
이하, 상기한 실시예 구성에 따른 작용을 도2 및 도3을 통해 상세하게 설명하면, 자동변속기를 탑재한 차량에 있어서, 고온판정수단(70)에서 유온센서(60)와 터빈회전센서(60)에서 검출된 신호에 의해 주행중 변속기에 관한 열부하가 과부하 상태라고 판정될 경우 TCU(80)를 통해 ECU(90)에 데이터를 전송하면 상기 ECU(90)에서는 목표변속단을 검출하고 엔진토크제한수단(100) 즉, 스로틀엑츄에이터(101), 연료조절기(102) 및 점화시기 조절기(103)를 조절하여 스로틀개도 조절신호, 연료량 저감신호, 휴통수 발생신호 및 점화시기 진각신호중에서 어느 하나를 제어하게 되며, 이와 같이 제어한 상태에서 변속단을 검출하여 운전자의 가속폐달 조절에 의해 변속이 일어날 때 까지 상기 제어신호를 계속적으로 유지하게 되며, 이후 변속이 완료되면 원상태로 리턴하여 대기상태가 되며, 이후 엔진에 열부하가 과부하상태가 되면 동일한 방법에 의해 엔진토크를 조절하게 된다.2 and 3, the oil temperature sensor 60 and the turbine rotation sensor 60 in the high temperature determination means 70 will be described in detail with reference to FIGS. 2 and 3. In the case where it is determined that the heat load related to the transmission is overloaded by the signal detected in the), when data is transmitted to the ECU 90 through the TCU 80, the ECU 90 detects the target speed change stage and engine torque limiting means. That is, the throttle actuator 101, the fuel regulator 102, and the ignition timing controller 103 are adjusted to control any one of the throttle opening degree adjustment signal, the fuel amount reduction signal, the pail water generation signal, and the ignition timing advance signal. In this state of control, the shift stage is detected and the control signal is continuously maintained until a shift occurs by the driver's acceleration and pedal adjustment. The engine torque is controlled by the same method when the engine is overloaded with heat load.
이상에서 설명한 바와 같이 본 발명은 엔진 열부하가 과부하상태가 될 경우 엔진에 흡입되는 공기량을 저감시키거나, 엔진에 공급되는 연료량을 저감시키거나 엔진의 기통수중 일부를 휴통시키거나 또는 엔진의 점화시기를 진각시키는 방법을 통해 엔진토크력을 감소시켜 과부하를 억제시키게 된다.As described above, the present invention reduces the amount of air sucked into the engine when the engine heat load is overloaded, reduces the amount of fuel supplied to the engine, shuts down some of the engine's cylinder water, or reduces the ignition timing of the engine. The advancing method reduces the engine torque and suppresses the overload.
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KR1019960075697A KR19980056427A (en) | 1996-12-28 | 1996-12-28 | High Temperature Prevention Method of Hydraulic Operated Automatic Transmission |
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KR1019960075697A KR19980056427A (en) | 1996-12-28 | 1996-12-28 | High Temperature Prevention Method of Hydraulic Operated Automatic Transmission |
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1996
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