Control apparatus for automatic transmissions
    1.
    发明授权
    Control apparatus for automatic transmissions 失效
    自动变速器控制装置

    公开(公告)号:US5842950A

    公开(公告)日:1998-12-01

    申请号:US771141

    申请日:1996-12-20

    摘要: To optimize the application hydraulic pressure of the friction application elements in the transmission mechanism, and to reduce the unnecessary load on each member, the transmission mechanism of an automatic transmission is provided with a plurality of friction application elements which are applied simultaneously in order to achieve the designated gear stage, and hydraulic servos which operate the friction application elements independently. The control apparatus has an information detecting means, an input torque calculating means which calculates the input torque of the transmission mechanism on the basis of this information, an application hydraulic pressure calculating means which calculates the necessary application hydraulic pressure required to maintain the application of each individual friction application element on the basis of the input torque, and a supply means which supplies the necessary application hydraulic pressure to the hydraulic servos of the friction application elements. The supply means makes the hydraulic pressure supplied to each hydraulic servo the necessary application hydraulic pressure calculated for each friction application element independently when achieving the designated gear stage.

    摘要翻译: 为了优化传动机构中的摩擦施加元件的应用液压,并且为了减少每个构件上的不必要的载荷,自动变速器的变速机构设置有多个同时施加的摩擦施加元件,以实现 指定的齿轮级和独立地操作摩擦应用元件的液压伺服。 控制装置具有信息检测装置,根据该信息计算传动机构的输入扭矩的输入扭矩计算装置,应用液压计算装置,其计算维持每个的应用所需的必要的施加液压 基于输入转矩的单独摩擦施加元件,以及向摩擦施加元件的液压伺服供给必要的施加液压的供给单元。 供给装置使得在实现指定的齿轮级时,向每个液压伺服机构提供的液压被独立地计算用于每个摩擦施加元件所需的应用液压。

    Control apparatus for an automatic transmission
    2.
    发明授权
    Control apparatus for an automatic transmission 失效
    用于自动变速器的控制装置

    公开(公告)号:US5807207A

    公开(公告)日:1998-09-15

    申请号:US771144

    申请日:1996-12-20

    摘要: In order to improve transmission efficiency of an automatic transmission, an engagement brake which does not cause drag is used and the surety of its engagement and release, and quick switching between forward maneuver and backward maneuver, is enabled. The automatic transmission comprises a transmission mechanism to achieve forward maneuver and backward maneuver. A backward motion brake which stops the rotation element to achieve backward maneuver is the engagement brake and an input clutch to transfer power by meshing with the rotation element during both forward maneuver and backward maneuver is a friction clutch. The control apparatus executes the control operation to prepare for speedy re-meshing by holding a supply pressure for the clutch hydraulic servo at a sufficient oil pressure to place the pressure in the stand-by condition at the piston stroke position immediately before the start of clutch engagement during the engagement or releasing of engagement of the engagement brake at the time of D.fwdarw.R or R.fwdarw.D shift.

    摘要翻译: 为了提高自动变速器的传动效率,使用不引起牵引力的接合制动器,并且能够实现其接合和释放的保证,以及向前机动和向后机动之间的快速切换。 自动变速器包括一个实现向前机动和向后机动的传动机构。 一个向后运动的制动器,其停止旋转元件以实现向后的操纵是接合制动器,并且通过在向前机动和向后机动两者期间与旋转元件啮合来传递动力的输入离合器是摩擦离合器。 控制装置通过在足够的油压下保持离合器液压伺服的供给压力来进行控制操作,以准备快速重新啮合,以将压力置于待机状态下的紧急起动前的活塞行程位置 在D-> R或R-> D移位时接合或释放接合制动器的接合的接合。

    Control system for automatic transmissions
    3.
    发明授权
    Control system for automatic transmissions 失效
    自动变速器控制系统

    公开(公告)号:US5792022A

    公开(公告)日:1998-08-11

    申请号:US771134

    申请日:1996-12-20

    摘要: A control system for use in an automatic transmission having a transmission mechanism for establishing a plurality of forward stages, a neutral state and a reverse stage. The transmission mechanism includes a predetermined rotary element to be retained for establishing the reverse stage; a reverse brake for retaining the rotary element; and a frictional engagement element capable of stopping the rotation of the rotary element. The reverse brake is a meshing type brake which meshes with and retains the rotary element. The control system has an engagement mechanism for applying the frictional engagement element. When the reverse stage is selected, the frictional engagement element is applied at least until the meshing engagement of the reverse brake is established, to stop the predetermined rotary element.

    摘要翻译: 一种用于自动变速器的控制系统,具有用于建立多个前进档,中立档和倒档级的传动机构。 传动机构包括用于建立倒档的待保持的预定旋转元件; 用于保持旋转元件的反向制动器; 以及能够停止旋转元件的旋转的摩擦接合元件。 反向制动器是与旋转元件啮合并保持旋转元件的啮合式制动器。 控制系统具有用于施加摩擦接合元件的接合机构。 当选择倒档时,摩擦接合元件施加至少直到建立倒档制动器的啮合,以停止预定旋转元件。

    Automatic transmission with anti-rollback band brake pressure control
    4.
    发明授权
    Automatic transmission with anti-rollback band brake pressure control 失效
    自动变速箱带防抱死制动压力控制

    公开(公告)号:US5935041A

    公开(公告)日:1999-08-10

    申请号:US942204

    申请日:1997-10-01

    摘要: A control system for a vehicular automatic transmission includes a speed change mechanism including an output element that is connected to the drive shaft of a vehicle to transmit power, and a rotary element connected to the output element. A control system for the speed change mechanism is also provided. The control system includes a hydraulic servo actuated brake for retaining the rotary element to check the rotation of the output element in a vehicle roll back direction. The brake includes a band brake that establishes different application forces depending on whether the brake operates by a self-energizing action or a de-energizing action according to the rotational direction of the rotary element. The band brake is set so that the rotary element rotates during backward rotation of the output element in the direction of the self-energizing action, and is set with a first oil pressure necessary for retaining the rotary element during backward rotation of the output element caused by the roll back of the vehicle. The first oil pressure is lower than a second oil pressure necessary for retaining the rotary element during operation of the band brake by the de-energizing action. The control system further includes an oil pressure feeder for feeding the hydraulic servo of the band brake with an oil pressure which is equal to or higher than the first oil pressure and lower than the second oil pressure.

    摘要翻译: 用于车辆自动变速器的控制系统包括变速机构,其包括连接到车辆的驱动轴以传递动力的输出元件和连接到输出元件的旋转元件。 还提供了一种用于变速机构的控制系统。 控制系统包括用于保持旋转元件以检查输出元件在车辆回滚方向上的旋转的液压伺服致动制动器。 制动器包括带式制动器,其根据制动器是否根据旋转元件的旋转方向通过自动动作或断电动作来操作而建立不同的施加力。 带式制动器被设定为使得旋转元件在输出元件沿自动作用的方向反向旋转期间旋转,并且被设定为在输出元件的反向旋转期间保持旋转元件所需的第一油压 通过车辆的回滚。 第一油压低于通过断电作用在带式制动器操作期间保持旋转元件所需的第二油压。 所述控制系统还包括用于将所述带式制动器的液压伺服系统供给等于或高于所述第一油压并低于所述第二油压的油压供给器。

    Lubricant control apparatus for automatic transmission
    5.
    发明授权
    Lubricant control apparatus for automatic transmission 失效
    用于自动变速器的润滑控制装置

    公开(公告)号:US5961419A

    公开(公告)日:1999-10-05

    申请号:US957748

    申请日:1997-10-24

    摘要: A lubricant control apparatus for an automatic transmission including a lubricating unit for feeding the lubricating oil to the portions of a speed change mechanism so that the heat to be generated in the speed change mechanism may be absorbed and recovered by the lubricating oil. The lubricant control apparatus includes a detector that detects the acting state of the speed change mechanism; a determiner that determines a necessary lubricating oil flow on the basis of the calorific value in the speed change mechanism, the calorific value being calculated from the detected acting state of the speed change mechanism; and a structure for feeding the lubricating oil to the speed change mechanism on the basis of the determined necessary lubricating oil flow. The lubricant control apparatus feeds an optimum lubricating oil flow according to the acting state of the speed change mechanism.

    摘要翻译: 一种用于自动变速器的润滑剂控制装置,其包括润滑单元,用于将润滑油供给到变速机构的部分,使得在变速机构中产生的热量可被润滑油吸收和回收。 润滑剂控制装置包括检测变速机构的作用状态的检测器; 基于变速机构的发热量确定必要的润滑油流量的判定器,根据检测到的变速机构的作用状态计算出发热量; 以及根据确定的必要润滑油流将润滑油供给到变速机构的结构。 润滑剂控制装置根据变速机构的作用状态供给最佳的润滑油流。

    Control mechanism for automatic transmission
    6.
    发明授权
    Control mechanism for automatic transmission 失效
    自动变速箱控制机构

    公开(公告)号:US5836852A

    公开(公告)日:1998-11-17

    申请号:US771135

    申请日:1996-12-20

    摘要: Uncomfortable travel of a vehicle due to engine brake actions during the travel of the vehicle in traffic is prevented without using an one-way clutch within a transmission mechanism. An automatic transmission is composed of rotational elements that are braked at the time of establishing low stages, a brake that brakes the rotational elements, and control systems which control the oil pressure of the hydraulic servo in the brake. A band brake that creates differences in application forces, using self-energizing and deenergizing actions, serves as the brake, which is set to have an area in which the oil pressure during the drive is lower than the oil pressure during the non-drive, by setting the self-energizing direction as a direction of rotation of the rotational element during the drive and the deenergizing direction as an opposite direction of rotation of the rotational element during the non-drive. The control systems have a supplying mechanism which supplies oil to the hydraulic servo of the band brake at an oil pressure that is lower than the oil pressure during the non-drive and is equal to or higher than the oil pressure during the drive.

    摘要翻译: 防止在车辆行驶期间由于发动机制动动作引起的车辆不舒适的行驶,而不需要在变速机构内使用单向离合器。 自动变速器由在制动低速时制动的旋转元件,制动旋转元件的制动器以及控制制动器中的液压伺服机构的油压的控制系统构成。 使用自通电和断电动作产生施加力差异的带式制动器用作制动器,其被设定为具有驱动期间的油压低于非驱动期间的油压的区域, 通过在驱动期间将作为旋转元件的旋转方向的自增力方向设定为在非驱动期间旋转元件的旋转方向。 控制系统具有供给机构,该供给机构在非驱动时的油压低于带式制动器的液压伺服机构,并且在驱动期间等于或高于油压。

    Automatic transmission for vehicles
    9.
    发明授权
    Automatic transmission for vehicles 失效
    汽车自动变速器

    公开(公告)号:US5735376A

    公开(公告)日:1998-04-07

    申请号:US621033

    申请日:1996-03-22

    摘要: A vehicular automatic transmission, for establishing a plurality of forward gear stages, includes: a transmission case; an input shaft; a transmission mechanism connected to the input shaft and including a plurality of transmission elements; an output shaft connected to the transmission mechanism; a clutch drivably connecting any one of the input shaft and the transmission elements individually; and a hydraulic servo for applying the clutch responsive to an oil pressure. The transmission case encloses the transmission mechanism, the clutch and the hydraulic servo, and includes axial end walls, on one of which is formed a stationary cylinder for the hydraulic servo. A piston is slidably mounted in the cylinder and together with the cylinder, defines an oil chamber for receipt of the actuating oil pressure. A bearing is arranged between the piston and the clutch for transmitting the thrust force from the piston to the clutch, while allowing relative rotation between the piston and the clutch. The clutch includes a hub with an outer cylindrical surface splined to a friction plate assembly and a rim radially spaced from the hub with the friction plate assembly splined to its inner cylindrical surface. The input shaft is connected to the hub whereas one of the transmission elements is connected to the rim.

    摘要翻译: 一种用于建立多个前进档位的车辆自动变速器,包括:变速箱; 输入轴; 连接到所述输入轴并且包括多个传动元件的传动机构; 连接到传动机构的输出轴; 分别驱动地连接输入轴和传动元件中的任一个的离合器; 以及用于响应于油压而施加离合器的液压伺服机构。 传动箱包围传动机构,离合器和液压伺服机构,并且包括轴向端壁,其中一个壁形成液压伺服机构的静止气缸。 活塞可滑动地安装在气缸中并与气缸一起形成用于接收致动油压力的油室。 在活塞和离合器之间布置有用于将推力从活塞传递到离合器的轴承,同时允许活塞和离合器之间的相对旋转。 离合器包括具有花键连接到摩擦板组件的外圆柱形表面的轮毂和与轮毂径向间隔开的边缘,摩擦板组件花键连接到其内圆柱形表面。 输入轴连接到轮毂,而其中一个传动元件连接到轮辋。

    Control method and control system for automatic transmission
    10.
    发明授权
    Control method and control system for automatic transmission 失效
    自动变速箱控制方法及控制系统

    公开(公告)号:US5630772A

    公开(公告)日:1997-05-20

    申请号:US428552

    申请日:1995-04-25

    摘要: A system and method for controlling an automatic transmission in a vehicle drive train including an engine, the automatic transmission and a fluid coupling for transmitting the rotation of the engine to the transmission. The transmission includes a clutch applied when a forward running range is selected; a second one-way clutch which is applied, when the first clutch is applied, to establish a forward 1st speed; and a brake for locking the one-way clutch, when applied, to block the reverse rotation of the output shaft of the transmission. A first hydraulic servo receives a first oil pressure for applying the first clutch and a second hydraulic servo receives a second oil pressure for applying the brake. When a forward running range is selected, with the vehicle stopped, the engine idling and a foot brake engaged, the oil pressure of the first hydraulic servo is lowered from the oil pressure at the 1st speed whereas the oil pressure of the second hydraulic servo is raised to a modulated pressure. The modulated pressure is set to generate, against the reverse force on the vehicle facing up an incline, a resistance corresponding to the forward driving force generated when the engine is idling in 1st speed.

    摘要翻译: 一种用于控制包括发动机,自动变速器和用于将发动机的旋转传递到变速器的流体联动器的车辆传动系中的自动变速器的系统和方法。 变速器包括当选择正向行驶范围时施加的离合器; 当施加第一离合器时,施加第二单向离合器以建立前进1速度; 以及用于在施加时用于锁定单向离合器的制动器,以阻止变速器的输出轴的反向旋转。 第一液压伺服机构接收用于施加第一离合器的第一油压,而第二液压伺服机构接收用于施加制动器的第二油压。 当选择正向行驶范围时,当车辆停止时,发动机怠速和脚踏制动器接合,第一液压伺服机构的油压从第一速度的油压降低,而第二液压伺服机构的油压为 提高到调制压力。 调制压力被设定为产生对着车辆朝向斜坡的反向力,该阻力对应于当发动机以第一速度空转时产生的前进驱动力。