Lock-up clutch control device for a torque converter
    1.
    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

    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
    2.
    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

    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。

    Lock-up apparatus in torque converter
    4.
    发明授权
    Lock-up apparatus in torque converter 失效
    变矩器锁定装置

    公开(公告)号:US5174423A

    公开(公告)日:1992-12-29

    申请号:US733079

    申请日:1991-07-18

    IPC分类号: F16H45/02

    摘要: A lock-up apparatus in a torque converter includes a first oil chamber (25) and a second oil chamber (26) delimited by a lock-up piston (21), a first oil line system (A) communicating with the first oil chamber (25), and a second oil line system (B) communicating with the second oil chamber (26). An orifice (36) and an oil line (37) for directly communicating the first oil line system (A) and the second oil chamber (26) are provided in an output shaft (20) and a turbine hub (19), respectively. Accordingly, the first oil chamber (25) and the second oil chamber (26) are not directly communicated. As a result, not only is shock produced at release from the locked up state mitigated by the orifice (36) and oil line (37), but it is also possible to reliably prevent a decline in transmission torque capacity in the lock-up ON state.

    摘要翻译: 变矩器中的锁止装置包括由锁定活塞(21)限定的第一油室(25)和第二油室(26),与第一油室(A)连通的第一油管系统 (25)和与第二油室(26)连通的第二油管路系统(B)。 在输出轴(20)和涡轮毂(19)中分别设置有用于直接连通第一油路系统(A)和第二油室(26)的孔口(36)和油管线(37)。 因此,第一油室25和第二油室26不直接连通。 结果,不仅由于孔口(36)和油管路(37)而被释放而产生的冲击产生的冲击,而且也可以可靠地防止锁定开启时的传递扭矩容量的下降 州。

    Hydraulic control system in automatic transmission and hydraulic control
method in same

    公开(公告)号:US5050459A

    公开(公告)日:1991-09-24

    申请号:US510191

    申请日:1990-04-17

    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.

    Hydraulic control apparatus for automatic transmission for motor vehicle
    8.
    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

    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。

    Hydraulic breathing apparatus for a hydraulic device
    9.
    发明授权
    Hydraulic breathing apparatus for a hydraulic device 失效
    液压装置用液压呼吸器

    公开(公告)号:US5127287A

    公开(公告)日:1992-07-07

    申请号:US758200

    申请日:1991-09-12

    IPC分类号: F16H57/04 F16H61/00 F16N39/06

    摘要: A hydraulic breather for a valve body in an automatic transmission, in which is disposed hydraulic equipment, for example, linear solenoid valves. The breather separates oil in the oil pan from the oil in the hydraulilc equipment when the automatic transmission is at work while allowing clean oil from the oil pan to enter the hydraulic equipment when the automatic transmission is at rest. The breating hole is provided in the form of an oil passage extending from hydraulic equipment within the valve body and includes an open-end section disposed in an upper part of the valve body. The open-end is located at a point higher than the working oil level in the automatic transmission. When the automatic transmission is at work, oil in the oil pan is used to lubricate, so the oil level is at its lowest level and the open-end section is above that oil level and thereby connects with air space in the valve body. When the automatic transmission is at rest, the oil level in the oil pan rises and oil from the oil pan enters into the breathing hole.

    摘要翻译: 用于自动变速器中的阀体的液压通气器,其中设置有液压设备,例如线性电磁阀。 当自动变速器处于工作状态时,通气器将油底壳中的油与液压设备中的油分离,同时当自动变速器静止时允许油底壳清洁的油进入液压设备。 破碎孔设置在从阀体内的液压设备延伸的油路的形式,并且包括设置在阀体的上部中的开口端部分。 开放端位于高于自动变速器工作油位的点。 当自动变速器工作时,油盘中的油被用于润滑,因此油位处于最低水平,开口端高于油位,从而与阀体中的空气空间连接。 当自动变速器处于静止状态时,油底壳中的油位升高,油盘中的油进入呼吸孔。

    Speed change control system in automatic transmission
    10.
    发明授权
    Speed change control system in automatic transmission 失效
    变速控制系统自动变速箱

    公开(公告)号:US5191814A

    公开(公告)日:1993-03-09

    申请号:US738381

    申请日:1991-07-31

    摘要: A control system in an automatic transmission for controlling the change-over of the three speed change patterns which are a speed change pattern having a cross gear ratio on a low speed side, a speed change pattern having a cross gear ratio on a high speed side and a speed change pattern having a normal gear ratio. According to this controlling system, when one of the three speed change pattern is selected based one a throttle opening and a vehicle speed, and when it is judged that the gear shift from a speed range in the present speed change pattern to a speed range in the selected speed change pattern falls under on of prohibited conditions, e.g., requiring engagement and/or disengagement of three or more frictional engaging elements for the gear shift, the gear shift is performed using a temporary speed change pattern (including the present speed change pattern) including a speed range not falling under the prohibited conditions. Thereafter, the pattern selection is repeated and the change-over between speed change pattern is performed under a gear shift condition not falling under the prohibited conditions.

    摘要翻译: 一种自动变速器中的控制系统,用于控制作为在低速侧具有交叉齿轮比的变速模式的三个变速模式的转换,在高速侧具有十字齿轮比的变速模式 以及具有正常齿轮比的变速模式。 根据该控制系统,当基于一个节气门开度和车速选择三个变速模式中的一个时,并且当判定从当前变速模式的速度范围变速到 所选择的变速模式落在禁止的条件下,例如需要三个或更多个用于换档的摩擦接合元件的接合和/或分离,使用临时变速模式(包括当前的速度变化模式 ),包括不在禁止条件下的速度范围。 此后,重复图案选择,并且在不在禁止条件下的变速条件下进行变速模式之间的切换。