Apparatus for controlling lock-up clutch
    1.
    发明公开
    Apparatus for controlling lock-up clutch 失效
    Einrichtung zur Steuerung einerÜberbrückungskupplung

    公开(公告)号:EP0801253A2

    公开(公告)日:1997-10-15

    申请号:EP97201563.0

    申请日:1988-05-23

    IPC分类号: F16H61/14

    摘要: A lock-up clutch (4) by way of which input/output shafts (1a, 2a) of a torque converter (2) are operatively connected to each other is connected to an electronic type pressure control valve (4). During speed changing in a transmission, a problem of interruption of transmission of torque can be solved by turning off the lock-up clutch (4) at the time point when filling of one of speed changing clutches (21 to 24) to be next brought in an operatively engaged state with hydraulic oil is completed. Hydraulic pressure (P t ) in the torque converter (2) is exerted on the back pressure portion of a piston of the lock-up clutch (4), while hydraulic pressure (P t ) in the torque converter (2) is exerted on the proportional solenoid (42) side of the pressure control valve (40). This makes it possible to reduce the initial hydraulic pressure. During speed changing, the lock-up clutch (4) is not fully released from the engaged state but it maintains its operative state at low pressure, causing shock caused by shifting the lock-up state to be reduced. When hydraulic pressure is gradually increased, an extent of opening of the throttle, weight of the vehicle and the current gear ratio are derived so as to vary a rate of the gradual increase of hydraulic pressure depending on values of these parameters. When the vehicle runs at a normal cruising speed, control is carried out such that hydraulic pressure in the lock-up clutch assumes a value peripheral to output torque from the engine. This enables a running region of the lock-up clutch held in an operatively engaged state to be enlarged substantially.

    摘要翻译: 锁定离合器(4)通过其连接到电子式压力控制阀(4),变矩器(2)的输入/输出轴(1a,2a)彼此可操作地连接。 在变速器变速时,可以通过在填充一个变速离合器(21〜24)的时间点关闭锁止离合器(4)来解决扭矩传递中断的问题,以便下一次 在与液压油的操作接合状态下完成。 液力变矩器(2)中的液压(Pt)施加在锁止离合器(4)的活塞的背压部分上,而液力变矩器(2)中的液压(Pt)施加在比例 所述压力控制阀(40)的螺线管(42)侧。 这使得可以减小初始液压。 在变速期间,锁止离合器(4)未完全从接合状态释放,但是其在低压下保持其操作状态,从而导致由锁定状态的变化而引起的冲击。 当液压逐渐增加时,导出节气门开度,车辆重量和当前齿轮比的程度,以便根据这些参数的值改变液压逐渐增加的速率。 当车辆以正常巡航速度行驶时,执行控制,使得锁止离合器中的液压压力产生从发动机输出扭矩的外围值。 这使得保持在操作接合状态的锁定离合器的行进区域能够基本上被扩大。

    Apparatus and method for controlling lock-up clutch
    3.
    发明公开
    Apparatus and method for controlling lock-up clutch 失效
    Einrichtung und Verfahren zur Steuerung einerÜberbrückungskupplung。

    公开(公告)号:EP0677685A2

    公开(公告)日:1995-10-18

    申请号:EP95109730.2

    申请日:1988-05-23

    IPC分类号: F16H61/14

    摘要: A lock-up clutch (4) by way of which input/output shafts (1a, 2a) of a torque converter (2) are operatively connected to each other is connected to an electronic type pressure control valve (4). During speed changing in a transmission, a problem of interruption of transmission of torque can be solved by turning off the lock-up clutch (4) at the time point when filling of one of speed changing clutches (21 to 24) to be next brought in an operatively engaged state with hydraulic oil is completed. Hydraulic pressure (P t ) in the torque converter (2) is exerted on the back pressure portion of a piston of the lock-up clutch (4), while hydraulic pressure (P t ) in the torque converter (2) is exerted on the proportional solenoid (42) side of the pressure control valve (40). This makes it possible to reduce the initial hydraulic pressure. During speed changing, the lock-up clutch (4) is not fully released from the engaged state but it maintains its operative state at low pressure, causing shock caused by shifting the lock-up state to be reduced. When hydraulic pressure is gradually increased, an extent of opening of the throttle, weight of the vehicle and the current gear ratio are derived so as to vary a rate of the gradual increase of hydraulic pressure depending on values of these parameters. When the vehicle runs at a normal cruising speed, control is carried out such that hydraulic pressure in the lock-up clutch assumes a value peripheral to output torque from the engine. This enables a running region of the lock-up clutch held in an operatively engaged state to be enlarged substantially.

    摘要翻译: 锁定离合器(4)通过其连接到电子式压力控制阀(4),变矩器(2)的输入/输出轴(1a,2a)彼此可操作地连接。 在变速器变速时,可以通过在填充一个变速离合器(21〜24)的时间点关闭锁止离合器(4)来解决扭矩传递中断的问题,以便下一次 在与液压油的操作接合状态下完成。 液力变矩器(2)中的液压(Pt)施加在锁止离合器(4)的活塞的背压部分上,而液力变矩器(2)中的液压(Pt)施加在比例 所述压力控制阀(40)的螺线管(42)侧。 这使得可以减小初始液压。 在变速期间,锁止离合器(4)未完全从接合状态释放,但是其在低压下保持其操作状态,从而导致由锁定状态的变化而引起的冲击。 当液压逐渐增加时,导出节气门开度,车辆重量和当前齿轮比的程度,以便根据这些参数的值改变液压逐渐增加的速率。 当车辆以正常巡航速度行驶时,执行控制,使得锁止离合器中的液压压力产生从发动机输出扭矩的外围值。 这使得保持在操作接合状态的锁定离合器的行进区域能够基本上被扩大。

    Apparatus for controlling lock-up clutch
    6.
    发明公开
    Apparatus for controlling lock-up clutch 失效
    Einrichtung zur Steuerung einerÜberbrückungskupplung

    公开(公告)号:EP0801253A3

    公开(公告)日:1998-03-04

    申请号:EP97201563.0

    申请日:1988-05-23

    IPC分类号: F16H61/14

    摘要: A lock-up clutch (4) by way of which input/output shafts (1a, 2a) of a torque converter (2) are operatively connected to each other is connected to an electronic type pressure control valve (4). During speed changing in a transmission, a problem of interruption of transmission of torque can be solved by turning off the lock-up clutch (4) at the time point when filling of one of speed changing clutches (21 to 24) to be next brought in an operatively engaged state with hydraulic oil is completed. Hydraulic pressure (P t ) in the torque converter (2) is exerted on the back pressure portion of a piston of the lock-up clutch (4), while hydraulic pressure (P t ) in the torque converter (2) is exerted on the proportional solenoid (42) side of the pressure control valve (40). This makes it possible to reduce the initial hydraulic pressure. During speed changing, the lock-up clutch (4) is not fully released from the engaged state but it maintains its operative state at low pressure, causing shock caused by shifting the lock-up state to be reduced. When hydraulic pressure is gradually increased, an extent of opening of the throttle, weight of the vehicle and the current gear ratio are derived so as to vary a rate of the gradual increase of hydraulic pressure depending on values of these parameters. When the vehicle runs at a normal cruising speed, control is carried out such that hydraulic pressure in the lock-up clutch assumes a value peripheral to output torque from the engine. This enables a running region of the lock-up clutch held in an operatively engaged state to be enlarged substantially.

    摘要翻译: 电子压力控制阀40与直接与变矩器(2)的输入输出轴(1a,2a)连接的锁止离合器(4)连接。 为了改变速度,当接下来要接合的变速器离合器(21-24)的填充已经完成时,锁止离合器(4)被断开,以防止扭矩不可用。 关于将变矩器的内部压力(Pt)施加到活塞的背压部的锁止离合器(4),将变矩器(2)的内部压力施加到比例侧 压力控制阀(40)的螺线管(42),以使初始压力降低。 在变速操作期间,锁止离合器(4)没有完全断开以保持低压,从而减小了由于锁止离合器变速操作引起的冲击。 为了逐渐增加液压,确定节流阀的开度,车辆的重量和齿轮比,并且逐渐增加的速度根据这些值而变化。 为了以规律的速度驱动车辆,控制锁止离合器中的液压,使其处于发动机输出转矩水平附近,从而使所使用的锁止离合器的行驶区域变宽。

    Apparatus and method for controlling lock-up clutch
    7.
    发明公开
    Apparatus and method for controlling lock-up clutch 失效
    Einrichtung und Verfahren zur Steuerung einerÜberbrückungskupplung。

    公开(公告)号:EP0677685A3

    公开(公告)日:1996-01-03

    申请号:EP95109730.2

    申请日:1988-05-23

    IPC分类号: F16H61/14

    摘要: A lock-up clutch (4) by way of which input/output shafts (1a, 2a) of a torque converter (2) are operatively connected to each other is connected to an electronic type pressure control valve (4). During speed changing in a transmission, a problem of interruption of transmission of torque can be solved by turning off the lock-up clutch (4) at the time point when filling of one of speed changing clutches (21 to 24) to be next brought in an operatively engaged state with hydraulic oil is completed. Hydraulic pressure (P t ) in the torque converter (2) is exerted on the back pressure portion of a piston of the lock-up clutch (4), while hydraulic pressure (P t ) in the torque converter (2) is exerted on the proportional solenoid (42) side of the pressure control valve (40). This makes it possible to reduce the initial hydraulic pressure. During speed changing, the lock-up clutch (4) is not fully released from the engaged state but it maintains its operative state at low pressure, causing shock caused by shifting the lock-up state to be reduced. When hydraulic pressure is gradually increased, an extent of opening of the throttle, weight of the vehicle and the current gear ratio are derived so as to vary a rate of the gradual increase of hydraulic pressure depending on values of these parameters. When the vehicle runs at a normal cruising speed, control is carried out such that hydraulic pressure in the lock-up clutch assumes a value peripheral to output torque from the engine. This enables a running region of the lock-up clutch held in an operatively engaged state to be enlarged substantially.

    摘要翻译: 电子压力控制阀40与直接与变矩器(2)的输入输出轴(1a,2a)连接的锁止离合器(4)连接。 为了改变速度,当接下来要接合的变速器离合器(21-24)的填充已经完成时,锁止离合器(4)被断开,以防止扭矩不可用。 关于将变矩器的内部压力(Pt)施加到活塞的背压部的锁止离合器(4),将变矩器(2)的内部压力施加到比例侧 压力控制阀(40)的螺线管(42),以使初始压力降低。 在变速操作期间,锁止离合器(4)没有完全断开以保持低压,从而减小了由于锁止离合器变速操作引起的冲击。 为了逐渐增加液压,确定节流阀的开度,车辆的重量和齿轮比,并且逐渐增加的速度根据这些值而变化。 为了以规律的速度驱动车辆,控制锁止离合器中的液压,使其处于发动机输出转矩水平附近,从而使所使用的锁止离合器的行驶区域变宽。