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    Oil pressure controller of automatic transmission
    1.
    发明授权
    Oil pressure controller of automatic transmission 失效
    自动变速器油压控制器

    公开(公告)号：US5605516A

    公开(公告)日：1997-02-25

    申请号：US562387

    申请日：1995-11-24

    申请人： Kazumasa Tsukamoto ,  Masahiko Ando ,  Akira Fukatsu ,  Tsuyoshi Mikami ,  Masato Kaigawa ,  Kagenori Fukumura ,  Hidehiro Oba ,  Yasuo Hojo ,  Atsushi Tabata ,  Nobuaki Takahashi

    发明人： Kazumasa Tsukamoto ,  Masahiko Ando ,  Akira Fukatsu ,  Tsuyoshi Mikami ,  Masato Kaigawa ,  Kagenori Fukumura ,  Hidehiro Oba ,  Yasuo Hojo ,  Atsushi Tabata ,  Nobuaki Takahashi

    IPC分类号： F16H61/00 ,  F16H61/06

    CPC分类号： F16H61/065 ,  F16H61/067

    摘要： An oil pressure controller of an automatic transmission which is capable of supplying engaging pressures to hydraulic servos of two frictional engaging elements which require different engaging pressures by a single pressure governing valve with a good pressure governing accuracy. The oil pressure controller comprises a hydraulic power source (10), hydraulic servos (70 and 80), signal pressure generating means (20), a pressure governing valve (30) for governing an oil pressure (P.sub.s) from the hydraulic power source (10) by a signal pressure (P.sub.ACC) and a control valve (40). The pressure governing valve (30)has a pressure receiving face A.sub.1 to which the signal pressure is applied, a pressure receiving face A.sub.2 to which the engaging pressure (P.sub.s) is fed back in the opposite direction and a pressure receiving face (A.sub.3) for selecting whether the feedback of the engaging pressure is present or not in order to change the control gain of the pressure governing valve (30)in response to the change of the control valve (40) for selecting the hydraulic servo (70 or 80) to which the oil pressure is supplied.

    摘要翻译： 一种自动变速器的油压控制器，其能够通过具有良好的压力调节精度的单个压力调节阀向需要不同接合压力的两个摩擦接合元件的液压伺服机构提供接合压力。 油压控制器包括液压动力源（10），液压伺服机构（70,80），信号压力发生装置（20），用于控制来自液压动力源的油压（Ps）的调压阀（30） 10）通过信号压力（PACC）和控制阀（40）。 压力调节阀30具有施加信号压力的受压面A1，接合压力（Ps）向相反方向反馈的压力接收面A2和压力接收面（A3），用于 选择接合压力的反馈是否存在，以便响应于用于选择液压伺服机构（70或80）的控制阀（40）的变化而改变压力调节阀（30）的控制增益 供应油压。

    Control system for automatic transmission
    2.
    发明授权
    Control system for automatic transmission 失效
    自动变速器控制系统

    公开(公告)号：US5672138A

    公开(公告)日：1997-09-30

    申请号：US606849

    申请日：1996-02-26

    申请人： Tsuyoshi Mikami ,  Hidehiro Oba ,  Nobuaki Takahashi

    发明人： Tsuyoshi Mikami ,  Hidehiro Oba ,  Nobuaki Takahashi

    IPC分类号： B60W10/04 ,  B60W10/00 ,  B60W10/02 ,  B60W10/06 ,  B60W10/10 ,  F02D29/00 ,  F02D29/02 ,  F02D45/00 ,  F16H59/14 ,  F16H59/24 ,  F16H61/04 ,  F16H63/50 ,  B60K41/04

    CPC分类号： F02D29/02 ,  F16H61/0437 ,  F16H2061/044 ,  F16H59/14 ,  F16H59/24 ,  F16H63/502 ,  Y10T477/679 ,  Y10T477/68

    摘要： A control system serves for surely preventing occurrence of a shift shock due to engagement of a one-way clutch with an automatic transmission in non-shift condition, and comprises a disengagement detecter for detecting disengagement of the one-way clutch; a power-on detecter for detecting change in an operation of the engine from driven mode to drive mode; a throttle opening detecter for detecting a throttle opening of the engine; a throttle opening estimater for estimating a second throttle opening when a predetermined time has elapsed from the time at which the operation of the engine is changed from driven mode to drive mode, on the basis of a first throttle opening detected when the operation of the engine is changed from driven mode to drive mode; and a torque down instructer for generating a torque down signal for reducing the output torque of the engine when the estimated second throttle opening is not less than a predetermined reference value.

    摘要翻译： 控制系统确保防止由于单向离合器与非变速状态下的自动变速器的接合引起的换档冲击，并且包括用于检测单向离合器的分离的脱离检测器; 用于检测发动机从驱动模式到驱动模式的操作的变化的加电检测器; 用于检测发动机的节气门开度的节气门开度检测器; 基于在发动机的运转时检测到的第一节气门开度，当从发动机的运转时间到从驾驶模式向驾驶模式变化的时刻经过了规定时间时，用于估计第二节气门开度的节气门开度估计器 从驱动模式更改为驱动模式; 以及扭矩降低指示器，用于当估计的第二节气门开度不小于预定参考值时，产生用于减小发动机的输出转矩的转矩降低信号。

    Shift control system for automatic transmission
    3.
    发明授权
    Shift control system for automatic transmission 失效
    自动变速箱换档控制系统

    公开(公告)号：US5634869A

    公开(公告)日：1997-06-03

    申请号：US606857

    申请日：1996-02-26

    申请人： Tsuyoshi Mikami ,  Hidehiro Oba ,  Nobuaki Takahashi

    发明人： Tsuyoshi Mikami ,  Hidehiro Oba ,  Nobuaki Takahashi

    IPC分类号： F02D29/00 ,  F02D29/02 ,  F16H59/38 ,  F16H59/68 ,  F16H59/72 ,  F16H61/04 ,  F16H61/06 ,  F16H63/50

    CPC分类号： B60W30/18 ,  B60W10/04 ,  B60W10/11 ,  B60W30/1819 ,  F02D29/02 ,  F16H61/061 ,  F16H2059/6807 ,  F16H59/38 ,  F16H59/72 ,  F16H63/502 ,  Y10T477/677 ,  Y10T477/69383

    摘要： A shift control system can perform clutch-to-clutch shifts without occurrence of delay in shifting operation and aggravation of shift shock, by decreasing an engaging force of a first frictional engagement device and increasing an engaging force of a second frictional engagement device, and comprises a low pressure retention instructer for maintaining the second frictional engagement device at a predetermined low level until a revolution speed of a rotary member reaches a predetermined value upon the shift, an engagement instructer for increasing the engaging force of the second frictional engagement device after the revolution speed of the rotary member has reached said predetermined value, and a pressure rise instructer for increasing the engaging force of the first frictional engagement device after increasing the engaging force of the second frictional engagement device.

    摘要翻译： 变速控制系统可以通过减小第一摩擦接合装置的接合力并增加第二摩擦接合装置的接合力而进行离合器到离合器的换档，而不会发生变速操作的延迟和换档冲击的加重，并且包括 用于将第二摩擦接合装置保持在预定的低水平直到旋转构件的转速在换档之后达到预定值的低压保持指示器，用于在旋转之后提高第二摩擦接合装置的接合力的接合指令 旋转构件的速度已经达到所述预定值;以及升压指示器，用于在增加第二摩擦接合装置的接合力之后增加第一摩擦接合装置的接合力。