Oil pressure controller of automatic transmission
    11.
    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

    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
    12.
    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

    摘要: 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.

    摘要翻译: 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。

    Control system for automatic transmission
    14.
    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:US5725451A

    公开(公告)日:1998-03-10

    申请号:US683861

    申请日:1996-07-17

    摘要: A control system for use in an automatic transmission which includes a gear shift mechanism having first and second frictional engagement elements for establishing: a first gear stage with the first frictional engagement element being applied and the second frictional engagement element being released; and a second gear stage with the first frictional engagement element being released and the second frictional engagement element being applied. The control system, in turn, includes: a first oil passage for feeding an oil pressure to the first frictional engagement element; a second oil passage for feeding an oil pressure to the second frictional engagement element; and a first valve arranged in the first oil passage for regulating the oil pressure of the first oil passage. At the time of a shift from the first gear stage to the second gear stage, the oil pressure of the first oil passage is regulated by the first valve responsive to the oil pressure of the second oil passage. The control system further includes a second valve arranged in the first oil passage for selectively feeding or shutting off the oil pressure of the first oil passage to and from the first frictional engagement element.

    摘要翻译: 一种用于自动变速器的控制系统,包括具有第一和第二摩擦接合元件的变速机构,用于建立:第一齿轮级,其中施加有第一摩擦接合元件,第二摩擦接合元件被释放; 以及第二齿轮台,其中第一摩擦接合元件被释放并且第二摩擦接合元件被施加。 控制系统又包括:用于向第一摩擦接合元件供给油压的第一油通道; 用于向第二摩擦接合元件供给油压的第二油通道; 以及配置在第一油路中的第一阀,用于调节第一油路的油压。 在从第一档位转换到第二档位时,响应于第二油通道的油压,第一油通道的油压被第一阀调节。 控制系统还包括布置在第一油路中的第二阀,用于选择性地将第一油通道的油压与第一摩擦接合元件的供油或切断。

    Control system for automatic transmission
    15.
    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:US5496230A

    公开(公告)日:1996-03-05

    申请号:US318896

    申请日:1994-11-28

    摘要: A control system for an automatic transmission, comprising a gear transmission unit for establishing a predetermined gear stage by applying a plurality of frictional engagement elements selectively. The gear transmission unit includes a main transmission portion capable of establishing at least a reverse gear stage, and an auxiliary transmission portion capable of switching a high gear stage and a low gear stage. The auxiliary transmission portion is set to the high stage at the shifting time to the reverse stage. The reverse stage is established by controlling the application of predetermined frictional engagement elements of the main transmission portion when a reverse stage shifting command is generated. A torque-down of an engine is executed at the time of controlling the engagement of the frictional engagement elements for the reverse stage. The auxiliary transmission portion is set to the high stage by controlling the applications of predetermined frictional engagement elements of the auxiliary transmission portion when the reverse stage in the main transmission portion is detected. A signal to end the engine torque-down is sent when a shift of the auxiliary transmission portion to the high stage is detected.

    摘要翻译: PCT No.PCT / JP94 / 00166 Sec。 371日期:1994年11月28日 102(e)1994年11月28日PCT PCT 1994年2月4日PCT公布。 公开号WO94 / 1802400 日期:1994年8月18日。一种用于自动变速器的控制系统,包括用于通过选择性地施加多个摩擦接合元件来建立预定齿轮级的齿轮传动单元。 齿轮传动单元包括能够至少建立倒档档的主传动部分和能够切换高齿轮级和低档级的辅助传动部。 辅助传动部分在转换时间设定为高阶段到反向阶段。 当产生反转阶段变速指令时,通过控制主变速器部分的预定摩擦接合元件的应用来建立相反的阶段。 在控制用于倒档的摩擦接合元件的接合时,执行发动机的扭矩降低。 当检测到主传动部分的反向级时,辅助传动部分通过控制辅助传动部分的预定摩擦接合元件的应用而被设定在高位。 当检测到辅助传动部分移动到高位时,发送结束发动机扭矩降低的信号。

    Control system for automatic transmission
    16.
    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:US5921885A

    公开(公告)日:1999-07-13

    申请号:US776842

    申请日:1997-02-13

    摘要: An automatic transmission control system is equipped with a pressure modulating valve for regulating the engaging pressure to be supplied to frictional engagement elements for setting respective gear stages of the automatic transmission, a signal pressure output valve for providing signal pressure, and a switching valve. The control system further includes a switching valve for switching destinations of signal pressure for setting pressure regulation level between pressure modulating valve and other control valve; an abnormality-detection element for detecting, in gear shift to a gear stage set by the frictional engagement elements engaged on delivery of regulated oil pressure, abnormal regulation of engaging pressure to be delivered to the frictional engagement elements and abnormal operation due to delivery of the signal pressure to the control valve; and gear-shift-inhibition element for inhibiting shift to the gear stage in case that the abnormality-detection element detects at least one of abnormal pressure regulation and the abnormal operation.

    摘要翻译: PCT No.PCT / JP96 / 01590 Sec。 371日期1997年2月13日 102(e)1997年2月13日PCT PCT 1996年6月12日PCT公布。 公开号WO97 / 00391 日期1997年1月31日自动变速器控制系统配备有压力调节阀,用于调节供给到用于设定自动变速器的各档位的摩擦接合元件的接合压力,用于提供信号压力的信号压力输出阀和 开关阀。 所述控制系统还包括切换阀,用于切换压力调节阀和其它控制阀之间的压力调节水平的信号压力的目的地; 一种异常检测元件,用于检测在由调节油压输送接合的摩擦接合元件设定的齿轮级的变速中,检测到传递到摩擦接合元件的接合压力的异常调节和由于传递到摩擦接合元件的异常操作 对控制阀的信号压力; 以及在异常检测元件检测到异常压力调节和异常操作中的至少一个的情况下,禁止换档到档位的挡位元件。

    Automatic transmission
    19.
    发明授权
    Automatic transmission 失效
    自动变速器

    公开(公告)号:US06887178B2

    公开(公告)日:2005-05-03

    申请号:US10283284

    申请日:2002-10-30

    IPC分类号: F16H3/62 F16H3/66

    摘要: An automatic transmission includes a first rotating element provided by coupling a sun gear of a second planetary gear set and a carrier of a third planetary gear set to each other, a second rotating element provided by coupling a carrier of the second planetary gear set and a ring gear of the third planetary gear set to each other, a third rotating element provided by a ring gear of the second planetary gear set, and a fourth rotating element provided by a sun gear of the third planetary gear set. The first rotating element and the second rotating element are coupled to a case by first and second brakes, the fourth and first rotating elements are coupled to a ring gear of a first planetary gear set via first and second clutches, the second and first rotating elements are coupled to an input shaft via third and fourth clutches, and the third rotating element is integrally coupled to an output gear, so that the automatic transmission can provide eight forward gear stages by changing a combination of two of the clutches and brakes which are engaged to each other.

    摘要翻译: 一种自动变速器包括通过将第二行星齿轮组的太阳齿轮和第三行星齿轮组的托架彼此联接而提供的第一旋转元件,通过将第二行星齿轮组和第二行星齿轮组的支架联接而设置的第二旋转元件 第三行星齿轮的齿圈彼此组合,由第二行星齿轮组的齿圈提供的第三旋转元件和由第三行星齿轮组的太阳齿轮提供的第四旋转元件。 第一旋转元件和第二旋转元件通过第一和第二制动器联接到壳体,第四和第一旋转元件经由第一和第二离合器联接到第一行星齿轮组的齿圈,第二和第一旋转元件 通过第三和第四离合器联接到输入轴,并且第三旋转元件整体地联接到输出齿轮,使得自动变速器可以通过改变接合的两个离合器和制动器的组合来提供八个前进档位级 对彼此。

    Planetary gear type multiple-step transmission for vehicle
    20.
    发明授权
    Planetary gear type multiple-step transmission for vehicle 失效
    用于车辆的行星齿轮式多级变速器

    公开(公告)号:US06808469B2

    公开(公告)日:2004-10-26

    申请号:US10189449

    申请日:2002-07-08

    IPC分类号: F16H362

    摘要: A vehicle planetary gear type multiple-step transmission wherein each of five rotary elements is constituted by sun gears, carriers and ring gears of three planetary gear sets, and speeds of the rotary elements are represented by respective straight lines in a collinear chart, and the first, second and third rotary elements are made stationary by respective first, second and third brakes, and the fifth, third and first rotary elements are connected to an input shaft by respective first, second and third clutches, while the third rotary element is brought to a disconnected state by fourth clutch, and the fourth rotary element is connected to an output rotary member.

    摘要翻译: 一种车辆行星齿轮式多级变速器,其中五个旋转元件中的每一个由三​​个行星齿轮组的太阳齿轮,载体和环形齿轮构成,并且旋转元件的速度由共线图中的各个直线表示,并且 第一,第二和第三旋转元件由相应的第一,第二和第三制动器制成静止,并且第五,第三和第三旋转元件通过相应的第一,第二和第三离合器连接到输入轴,同时带有第三旋转元件 通过第四离合器到断开状态,第四旋转元件连接到输出旋转部件。