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    Hydraulic control system in automatic transmission and hydraulic control method in same
    1.
    发明授权
    Hydraulic control system in automatic transmission and hydraulic control method in same 失效

    公开(公告)号：US5050459A

    公开(公告)日：1991-09-24

    申请号：US510191

    申请日：1990-04-17

    申请人： Kazunori Ishikawa ,  Yasuhiro Kamei ,  Yutaka Taga ,  Kunihiro Iwatsuki

    发明人： Kazunori Ishikawa ,  Yasuhiro Kamei ,  Yutaka Taga ,  Kunihiro Iwatsuki

    IPC分类号： F16H3/44 ,  F16H61/02 ,  F16H61/04 ,  F16H61/06 ,  F16H61/08 ,  F16H61/10

    CPC分类号： F16H61/068 ,  F16H2061/0485 ,  Y10T477/6895 ,  Y10T477/69387

    摘要： In a hydraulic control system for an automatic transmission comprising a hydraulic servomotor C-2 for a clutch or brake adapted to engage and disengage necessary rotary components of a planetary gear mechanism, and a select valve for selectively supplying hydraulic pressure to the hydraulic servomotor C-2 dependent on two transmission states, the select valve has two input ports selectively supplied with hydraulic pressure dependent on the two transmission states and one output port for outputting hydraulic pressure to the hydraulic servomotor C-2, a first orifice is disposed between the output port and the hydraulic servomotor C-2, and a second orifice is disposed on the same side as either of the two input ports.Upon an upshift from the 2nd to the 3rd speed in the D range condition, a shift valve is changed over such that the line pressure is supplied to one input port of the select valve via a line pressure output port and the second orifice to move a ball valve body in the select valve. Thus, the line pressure is supplied to the hydraulic servomotor C-2 via the output port of the select valve and the first orifice.In the R range condition, a manual valve is changed over such that its ports p and d are communicated with each other, while its port a is blocked off. The line pressure is hence supplied from the line pressure output port to another input port of the select valve for moving the ball valve body, so that the line pressure is supplied to the hydraulic servomotor C-2 via the first orifice.Therefore, at the time of an upshift from the 2nd to the 3rd speed, since the line pressure is supplied to the hydraulic servomotor C-2 while being restricted through both the second orifice and the first orifice, the clutch is gradually connected so as to prevent the occurrence of a shift shock. At the time of a shift into the reverse position, since the line pressure is supplied to the hydraulic servomotor C-2 while being restricted through only the first orifice, the clutch is more quickly connected so as to prevent a time lag in speed change.

    Lock-up clutch control device for a torque converter
    2.
    发明授权
    Lock-up clutch control device for a torque converter 失效
    变矩器锁止离合器控制装置

    公开(公告)号：US5010991A

    公开(公告)日：1991-04-30

    申请号：US407948

    申请日：1989-09-14

    申请人： Kazumasa Tsukamoto ,  Kazunori Ishikawa ,  Takuji Taniguchi ,  Kunihiro Iwatsuki ,  Yutaka Taga

    发明人： Kazumasa Tsukamoto ,  Kazunori Ishikawa ,  Takuji Taniguchi ,  Kunihiro Iwatsuki ,  Yutaka Taga

    IPC分类号： F16H61/14

    CPC分类号： F16H61/143 ,  F16H2061/145

    摘要： A supplying port connecting to a supplying-side hydraulic pressure is arranged in a lock-up control valve. When the lock-up relay valve is switched ON (right half position), a supplying hyraulic pressure is supplied to a second oil chamber through an oil passage, led to a first oil chamber through an orifice and drained to a draining hydraulic oil passage through the oil passage. At this state in the lock-up control valve an inner pressure of the first oil chamber operates on a chamber through the oil passage, while an inner pressure of the second oil chamber operates on a chamber through the oil passage, and a controlling pressure from a linear solenoid valve operates on the controlling chamber. When the controlling pressure from the controlling chamber decreases by a deceleration of a vehicle speed, a valve closes a draining oil port and a drain port and increases an inner pressure of the first oil chamber. At this state when the hydraulic pressure of the second oil chamber increases by the contraction of the outer configuration of a torque convertor by a decrease of the centrifugal force, the draining oil port is connected to the supplying port and the hydraulic pressure is supplied to the first oil chamber to increase the hydraulic pressure of the chamber.

    摘要翻译： 在锁定控制阀中配置有与供给侧液压连接的供给口。 当锁定继电器阀被接通（右半位置）时，通过油路向第二油室供给供给液压，通过孔引导到第一油室，并排出到排出的液压油通道 油路。 在锁止控制阀的这种状态下，第一油室的内部压力在通过油路的腔室中操作，而第二油室的内部压力在通过油路的腔室中操作，并且控制压力来自 线性电磁阀在控制室上操作。 当来自控制室的控制压力随着车速的减速而减小时，阀关闭排油口和排水口，并增加第一油室的内压。 在这种状态下，当通过离心力的降低，第二油室的液压由于转矩转换器的外部结构的收缩而增加时，排出油口连接到供给口，并且液压被供给到 第一油室增加腔室的液压。

    Hydraulic control device for an automatic transmission
    3.
    发明授权
    Hydraulic control device for an automatic transmission 失效
    用于自动变速器的液压控制装置

    公开(公告)号：US5074168A

    公开(公告)日：1991-12-24

    申请号：US407669

    申请日：1989-09-14

    申请人： Kazunori Ishikawa ,  Takuji Taniguchi ,  Kunihiro Iwatsuki ,  Yutaka Taga

    发明人： Kazunori Ishikawa ,  Takuji Taniguchi ,  Kunihiro Iwatsuki ,  Yutaka Taga

    IPC分类号： F16H61/16 ,  F16H61/18

    CPC分类号： F16H61/16 ,  Y10T477/6935

    摘要： A reverse-engaging condition is prevented by a reverse inhibit valve operated by the solenoid valve even if a shift lever is operated to a reverse range at forward running. A solenoid valve controlling a 1-2 shift valve is "OFF" when controlling a manual valve to a reverse range under 7 km/h of a vehical speed. The reverse inhibit valve is at a right-half position. Therefore, the hydraulic pressure from the reverse range port of the manual valve runs through oil passages and supplied to the hydraulic servos. At forward running over 7 km/h the solenoid valve is switched "ON", the reverse inhibit valve is switched to a left-half position and oil passages are isolated. When the solenoid valve is switched at forward running, a hydraulic pressure from a R range port of the manual valve does not operate on a difference of cross sectional areas of lands of the reverse inhibit valve, so that the reverse inhibit valve is kept at the right-half position together with a pressing force of a spring therein.

    摘要翻译： 即使在前进行驶中变速杆操作到反向范围，也可以通过由电磁阀操作的反向禁止阀来防止反向接合状态。 控制1-2换档阀的电磁阀在将手动阀控制在车速下7公里/小时的相反范围内时为“OFF”。 反向禁止阀位于右半位置。 因此，来自手动阀的倒档端口的液压压力通过油路并供给到液压伺服机构。 在向前运行超过7公里/小时的情况下，电磁阀切换为“ON”，反向禁止阀切换到左半部位，油路隔离。 当电磁阀在正向运行时切换时，来自手动阀的R范围端口的液压压力不会在反向阻力阀的平台的横截面积的差异上进行操作，使得反向禁止阀保持在 右半部位与其中的弹簧的压力一起。

    Hydraulic control apparatus for automatic transmission for motor vehicle
    7.
    发明授权
    Hydraulic control apparatus for automatic transmission for motor vehicle 失效
    用于汽车自动变速器的液压控制装置

    公开(公告)号：US5005444A

    公开(公告)日：1991-04-09

    申请号：US313638

    申请日：1989-02-22

    申请人： Hiromichi Kimura ,  Kunihiro Iwatsuki ,  Hiroji Taniguchi ,  Takuji Taniguchi ,  Kazunori Ishikawa

    发明人： Hiromichi Kimura ,  Kunihiro Iwatsuki ,  Hiroji Taniguchi ,  Takuji Taniguchi ,  Kazunori Ishikawa

    IPC分类号： F16H61/08 ,  F16H61/02 ,  F16H61/06 ,  F16H61/10 ,  F16H61/12

    CPC分类号： F16H61/061 ,  F16H61/12 ,  F16H2059/6823 ,  F16H2061/0255 ,  F16H2061/122 ,  F16H2061/1264 ,  F16H2061/1268 ,  F16H61/0286 ,  F16H61/686 ,  Y10T477/6895

    摘要： A hydraulic control apparatus for controlling a shifting action of a hydraulically operated frictional coupling device of an automatic transmission connected to a vehicle engine, from a neutral position to a forward drive position, in response to an operation of a shift lever. The apparatus includes a shift control valve operable in response to the shift lever, between a position for supplying a fluid to the coupling device for engagement thereof, and a position for discharging the fluid from the coupling device for disengagement thereof, a flow control device for controlling a rate of flow of the fluid between the shift lever valve and the coupling device, a fail-safe fluid passage disposed between the shift lever valve and the coupling device, for fluid communication between the shift lever valve and the frictional coupling device, irrespective of an operating position of the flow control device, and a controller for controlling the flow control device so as to restrict the fluid flow into or from the coupling device after an engaging or disengaging action of the frictional coupling device is actually started.

    摘要翻译： 一种液压控制装置，用于响应于变速杆的操作，控制连接到车辆发动机的自动变速器的液压操作的摩擦联接装置从中立位置到前进驱动位置的换档动作。 该装置包括可响应于变速杆操作的换档控制阀，用于将流体供应到用于接合的联接装置的位置和用于从联接装置排出流体以脱离其的位置;流量控制装置， 控制变速杆阀和联接装置之间的流体流量，设置在变速杆阀和联接装置之间的故障安全流体通道，用于变速杆阀和摩擦联接装置之间的流体连通，不管 流量控制装置的操作位置的控制器，以及用于控制流量控制装置的控制器，以便在实际开始摩擦联接装置的接合或分离动作之后限制流入或流出耦合装置的流体流动。