Oil pressure controller of automatic transmission
    23.
    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

    CPC classification number: F16H61/065 F16H61/067

    Abstract: 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.

    Abstract translation: 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
    24.
    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:US5593365A

    公开(公告)日:1997-01-14

    申请号:US509456

    申请日:1995-07-31

    Abstract: A control system for an automatic transmission including a main transmission unit for setting a reverse stage and a plurality of forward stages and an auxiliary transmission unit connected in series to the main transmission unit and capable to be changed between two higher and lower stages. The control system comprises: a solenoid valve for outputting a signal pressure when at least the reverse stage and a predetermined one of the forward stages are to be set; a change-over valve for changing the signal pressure selectively into a signal pressure for setting the auxiliary transmission unit to a high gear stage and a signal pressure for controlling an engine braking state; and an engine braking control valve for controlling an engine braking frictional element at the predetermined forward stage into a released state in response to the signal pressure coming from the change-over valve. The acting state of the solenoid valve when the reverse stage is to be set and the acting state of the solenoid valve when the predetermined forward stage for making the engine braking ineffective is to be set are identical to each other.

    Abstract translation: 一种用于自动变速器的控制系统,包括用于设置反向级的主传动单元和多个前级,以及与主传动单元串联连接并能够在两个较高和较低级之间变化的辅助传动单元。 所述控制系统包括:电磁阀,用于在至少所述反向级和所述前级中的预定的一级被设定时输出信号压; 用于将信号压力选择性地改变成用于将辅助变速器单元设置到高档位的信号压力和用于控制发动机制动状态的信号压力的换向阀; 以及发动机制动控制阀,用于响应于来自转换阀的信号压力,将预定的前级的发动机制动摩擦元件控制到释放状态。 要设定倒档时的电磁阀的作用状态和要使发动机制动无效的规定的前进阶段要被设定时的电磁阀的动作状态相同。

    Shift control system for vehicular automatic transmission
    26.
    发明授权
    Shift control system for vehicular automatic transmission 失效
    车辆自动变速箱换档控制系统

    公开(公告)号:US5501642A

    公开(公告)日:1996-03-26

    申请号:US335846

    申请日:1995-02-21

    Abstract: In order to control the engine output timing always properly irrespective of the aging of an automatic transmission, the present invention provides a shift control system for a vehicular automatic transmission, which system comprises: release end detecting means for detecting the release end of a frictional engagement element for a higher gear stage, at a shifting time from higher to lower gear stages; synchronism detecting means for detecting the synchronism between an engine R.P.M. and a rotating element in the automatic transmission at the lower gear stage; and engine output control means for controlling the output of the engine. The aforementioned engine output control means starts the rise control of the engine output, when the release end of the frictional engagement element for the higher gear stage is detected by the release end detecting means, and ends the rise control of the aforementioned engine output when the synchronism between the engine R.P.M. and the rotating element in the automatic transmission at the lower gear stage is detected by the synchronism detecting means.

    Abstract translation: PCT No.PCT / JP94 / 00383 Sec。 371日期1995年2月21日 102(e)日期1995年2月21日PCT 1994年3月9日PCT公布。 出版物WO94 / 21484 日期1994年9月29日。为了始终适当地控制发动机输出定时,与自动变速器的老化无关,本发明提供了一种用于车辆自动变速器的变速控制系统,该系统包括:释放端检测装置, 用于较高档位的摩擦接合元件的释放端,从高档到低档级的换档时间; 同步检测装置,用于检测发动机R.P.M. 以及在低档级的自动变速器中的旋转元件; 以及用于控制发动机的输出的发动机输出控制装置。 上述发动机输出控制装置,当通过释放端检测装置检测到用于较高档位的摩擦接合元件的释放端时,开始发动机输出的上升控制,并且当上述发动机输出的上升控制 发动机RPM之间的同步 并且由同步检测装置检测在低档级的自动变速器中的旋转元件。

    Speed stage shifting of automatic transmission by composite control
phases employing common target parameter
    27.
    发明授权
    Speed stage shifting of automatic transmission by composite control phases employing common target parameter 失效
    通过使用通用目标参数的复合控制相进行自动变速器的档位换档

    公开(公告)号:US5475595A

    公开(公告)日:1995-12-12

    申请号:US257582

    申请日:1994-06-09

    Abstract: An automatic transmission of a vehicle including a speed change gear mechanism including rotary members such as gears and gear carriers and hydraulically operated friction engaging means and adapted to provide various speed stages according to selective engagement and disengagement of the friction engaging means is controlled by such steps as detecting rotation speed of at least one of the rotary members during a shifting between the speed stages, changing hydraulic pressure of at least one of the friction engaging means during a first phase of the speed stage shifting so as to make the rotation speed of the one rotary member follow a first change performance curve calculated according to a first feedback control program, and changing the hydraulic pressure of the one friction engaging means during a second phase of the speed stage shifting so as to make the rotation speed of the one rotary member follow a second change performance curve calculated according to a second feedback control program in continuity to the first change performance curve.

    Abstract translation: 包括包括诸如齿轮和齿轮架的旋转构件的变速齿轮机构和液压操作的摩擦接合装置的适于根据摩擦接合装置的选择性接合和分离提供各种速度级的车辆的自动变速器由这些步骤 作为在所述转速级之间的变速期间检测所述旋转部件中的至少一个的旋转速度,在所述速度级换档的第一阶段期间改变所述摩擦接合装置中的至少一个的液压,以使所述转速级的转速 一个旋转构件遵循根据第一反馈控制程序计算的第一变化性能曲线,并且在速度档位换档的第二阶段期间改变一个摩擦接合装置的液压,以使得一个旋转构件的转速 遵循根据第二反馈控制计算的第二变化性能曲线 l程序与第一个改变性能曲线连续。

    Automatic transmission
    28.
    发明授权
    Automatic transmission 失效
    自动变速器

    公开(公告)号:US5460577A

    公开(公告)日:1995-10-24

    申请号:US51737

    申请日:1993-04-23

    Abstract: In an automatic transmission according to the present invention, a coast brake cutoff valve is arranged between a range-pressure-producing manual valve and shift valves and, when changed over, selectively feeds oil to hydraulic engine brake servomotors. An engine brake solenoid valve is on/off controlled by a shifting output signal from a CPU, whereby the coast brake cutoff valve is selectively changed over. A lockout valve is arranged between the coast brake cutoff valve and the manual valve and is connected to one of shifting solenoid valves. The automatic transmission can therefore be operated without trouble even when an electrical problem occurs in the shifting solenoid valves and/or the engine brake solenoid valve.

    Abstract translation: 在根据本发明的自动变速器中,在制压手动阀和换档阀之间布置有惯性制动器截止阀,当切换时,选择性地将油输送到液压发动机制动伺服电动机。 发动机制动电磁阀通过来自CPU的变速输出信号进行开/关控制,从而选择性地切换惯性制动器截止阀。 一个闭锁阀配置在惯性制动器截止阀和手动阀之间,并连接到换档电磁阀之一。 因此即使在换档电磁阀和/或发动机制动电磁阀中发生电气问题的情况下,也能够无故障地进行自动变速器的动作。

    Shift control system with an automatic first sequence and a manual
second sequence of gear stages
    29.
    发明授权
    Shift control system with an automatic first sequence and a manual second sequence of gear stages 失效
    换档控制系统具有自动第一顺序和手动二级齿轮级

    公开(公告)号:US5127288A

    公开(公告)日:1992-07-07

    申请号:US668171

    申请日:1991-03-12

    Abstract: A shift control system for a vehicular automatic transmission including a gear train to be set to a plurality of gear stages in accordance with the engaged or released states of a plurality of friction devices. The shift control system comprises: a mode selector for interchanging an automatic shift mode to effect a shift according to a first gear stage train, which is composed of a plurality of gear stages selected from those capable of being set with the gear train, a manual shift mode to effect a shift according to a second gear stage train, which is composed of other plural gear stages selected from those capable of being set with the gear train; an automatic shift output device for outputting a shift signal in accordance with the running state of the vehicle to set any of the gear stages of the first gear stage train when the automatic shift mode is selected; a gear stage selector for outputting an upshift signal and a downshift signal in response to the manual operations of upshift and downshift, respectively, when the manual shift mode is selected; a manual shift output device responding to the upshift signal and downshift signal outputted from the gear stage selector, for outputting a shift signal to select a gear stage from the second gear shift train and to set the selected gear stage; and a hydraulic controller for feeding/releasing an oil pressure to the friction devices to set the gear stage which is commanded by the shift signals outputted from the automatic shift output device and the manual shift output device.

    Abstract translation: 一种用于车辆自动变速器的变速控制系统,其包括根据多个摩擦装置的接合或释放状态设置到多个齿轮级的齿轮系。 变速控制系统包括:模式选择器,用于交换自动变速模式,以实现根据第一齿轮级列的换档,该第一档位列由从齿轮系中设置的多个档位组成的多个档位组成,手动 换档模式,以实现根据第二齿轮级列车的换挡,该第二齿轮级列车由选自能够设置有齿轮系的那些齿轮级组成的其它多个档位组成; 自动换档输出装置,用于当选择自动换档模式时,根据车辆的行驶状态输出换档信号,以设定第一档位列的任何档位; 齿轮级选择器,用于当选择手动换档模式时分别响应于升挡和降档的手动操作而输出升档信号和降档信号; 手动变速输出装置,其响应于从档位选择器输出的升档信号和降档信号,用于输出换档信号以从第二档位选择齿轮级并设定所选择的档位; 以及液压控制器,用于向摩擦装置输送/释放油压,以设定由自动变速输出装置和手动换档输出装置输出的换档信号所指令的档位。

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