• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    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
    公开号:KR19980056427A
    申请号:KR1019960075697
    申请日:1996-12-28
    公开日:1998-09-25
    发明作者:최영삼
    申请人:박병재；현대자동차 주식회사；
    IPC主号:
    专利说明:

    High Temperature Prevention Method of Hydraulic Operated Automatic Transmission
    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.
    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.
    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.
    However, in the conventional high temperature prevention device, a specific method for limiting engine torque has not been presented.
    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.
    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.
    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.
    1 is a circuit diagram showing a high temperature preventing device of the hydraulically operated automatic transmission of the present invention,
    Figure 2 is a flow chart for explaining the high temperature prevention method of the present invention.
    * Explanation of symbols for main parts of the drawings
    10: engine 20: transmission
    30: Throttle sensor 40: Engine speed sensor
    50: oil temperature sensor 60: turbine speed sensor
    70: high temperature determination means 80: TCU
    90: ECU 100: Engine torque limiting means
    Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    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.
    The engine torque limiting means 100 includes a throttle actuator 101, a fuel regulator 102, and an ignition timing controller 103.
    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.
    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.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] The throttle opening means, the engine speed detecting means, the vehicle speed detecting means, the detected throttle opening degree, the overload state determining means for determining whether or not the heat load of the hydraulically operated automatic transmission is overloaded based on the engine speed and the vehicle speed; In the high temperature prevention device, which is composed of engine torque limiting means for limiting engine torque when it is determined to be overloaded, the amount of air sucked into the engine is reduced and supplied to the engine when it is determined that the heat load of the transmission is overloaded. A method for preventing the high temperature of a hydraulically-operated automatic transmission characterized in that the engine torque is limited by controlling the fuel amount, controlling some of the engine cylinders, advancing the ignition timing of the engine, and the like.
    类似技术:
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-28|Application filed by 박병재, 현대자동차 주식회사
    1996-12-28|Priority to KR1019960075697A
    1998-09-25|Publication of KR19980056427A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019960075697A|KR19980056427A|1996-12-28|1996-12-28|High Temperature Prevention Method of Hydraulic Operated Automatic Transmission|
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