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    Automatic trasmission
    12.
    发明申请
    Automatic trasmission 审中-公开
    自动传送

    公开(公告)号：US20010027691A1

    公开(公告)日：2001-10-11

    申请号：US09799041

    申请日：2001-03-06

    Applicant: Hitachi Ltd.

    Inventor： Mitsuo Kayano ,  Toshimichi Minowa ,  Takashi Okada ,  Tatsuya Ochi ,  Hiroshi Sakamoto

    IPC: F16H003/12

    CPC classification number: F16H3/0915 ,  F16H3/12 ,  F16H2061/0407 ,  Y10T74/19284

    Abstract: The object of the present invention is to modify the shock originated from engaging and disengaging of a clutch during acceleration, when using a mesh type transmission provided with a clutch for engaging and disengaging the shift gear and the output shaft. A mesh type automatic transmission equipped with an input shaft 300 for introducing power of an engine, a plurality of shift gears 301, 303, 304, 306, 310, a plurality of cogged clutches 302, 305, 308, an output shaft 323 for outputting driving force, a counter shaft 315, and a plurality of counter gears 314, 316, 317, 318, 322, for transmitting power of the engine to the output shaft 323 by rotating the input shaft 300 with the power of the engine, rotating the counter shaft 315 by rotation of the input shaft 300, and transmitting rotation of the counter shaft 315 to the output shaft 323 via the counter gears 314, 316, 317, 318, 322 with the automatic shifting by engaging and disengaging the cogged clutches 302, 305, 308 to one of the shift gears 301, 303, 304, 306, 310 corresponding to the speed, wherein an assist mechanism 6 for transmitting rotational force of the input shaft 300 to the output shaft 323 by transmitting rotation of the counter shaft 315 via the assist gear 325, during the period of disengagement of a gear 301, 303, 304, 306, 310 to engagement of a new gear 301, 303, 304, 306, 310 at shifting, is provided to the output shaft 323.

    Abstract translation: 本发明的目的是在使用设置有用于使变速齿轮和输出轴接合和分离的离合器的网状变速器时，改变在加速期间离合器接合和分离的冲击。 一种网状自动变速器，其配备有用于引入发动机功率的输入轴300，多个变速齿轮301,303,304,306,310，多个齿轮离合器302,305,308，用于输出的输出轴323 驱动力，副轴315和多个中间齿轮314,316,317,318,322，用于通过使发动机的动力旋转输入轴300来将发动机的动力传递到输出轴323， 通过输入轴300的旋转而产生相对轴315，并且通过经由相对齿轮314,316,317,318,322的转动将副轴315的旋转传递到输出轴323，并通过啮合和分离齿槽式离合器 305,308相对于速度对应的变速齿轮301,303,304,306,310中的一个，其中通过传递副轴315的旋转而将输入轴300的旋转力传递到输出轴323的辅助机构6 通过辅助齿轮325，duri 齿轮301,303,304,306,310分离到齿轮301,303,304,306,310啮合的期间被提供给输出轴323。

    Gear-type automatic transmission and an automobile using the gear-type automatic transmission
    15.
    发明申请
    Gear-type automatic transmission and an automobile using the gear-type automatic transmission 失效
    齿轮式自动变速器和使用齿轮式自动变速器的汽车

    公开(公告)号：US20040116249A1

    公开(公告)日：2004-06-17

    申请号：US10721460

    申请日：2003-11-26

    Applicant: Hitachi, Ltd.

    Inventor： Mitsuo Kayano ,  Toshimichi Minowa ,  Hiroshi Sakamoto ,  Tatsuya Ochi ,  Hiroshi Ohnishi

    IPC: B60K041/04 ,  F16H061/26 ,  F16H003/08

    CPC classification number: F16H63/502 ,  F16H3/12 ,  F16H59/14 ,  F16H61/0403 ,  F16H61/12 ,  F16H61/2807 ,  F16H2003/0818 ,  F16H2061/0087 ,  F16H2061/0407 ,  Y10S477/906 ,  Y10T74/19223 ,  Y10T74/19251 ,  Y10T74/19284 ,  Y10T477/677 ,  Y10T477/6939

    Abstract: In an automatic transmission provided with a plurality of torque transmission means between the input shaft and output shaft of a gear-type shifting means, in which said torque transmission means for at least one shifting stage is a multi-disc clutch and the torque transmission means for all other shifting stages are claw clutches and said multi-disc clutch is controlled to accomplish smooth shifting from one shifting stage to another shifting stage, the torque capacity of the multi-disc clutch is increased above the maximum output shaft torque of the transmission and the torque of the multi-disc clutch is generated so that the output shaft torque does not change significantly during shifting. The present invention solves the problems: that if the torque capacity of the multi-disc clutch is small, when a shift is made at a high output shaft torque, the difference between this torque and the torque that the multi-disc clutch can generate will be transmitted to the output shaft as a change in torques thus making the passengers (including the driver) feel uncomfortable; and that in case of trouble with the driving source of the actuators which drive the automatic transmission, if the engine torque is not transmitted to the output shaft properly, this can cause the engine to stall or the engine speed to increase abruptly, thus resulting in the vehicle not operating properly

    Abstract translation: 在具有多个转矩传递装置的自动变速器中，齿轮式变速机构的输入轴与输出轴之间，至少一个变速级的转矩传递机构为多片式离合器，转矩传递机构 对于所有其他变速级，爪式离合器和所述多片式离合器被控制以实现从一个变速级到另一级变速级的平稳换档，多片式离合器的转矩能力增加到变速器的最大输出轴扭矩以上， 产生多片离合器的扭矩，使得输出轴转矩在变速期间不显着变化。 本发明解决了如果多盘式离合器的转矩容量小的话，则在高输出轴扭矩变化的情况下，该转矩与多片离合器能产生的转矩之间的差异将会 作为转矩的变化传递到输出轴，从而使乘客（包括驾驶员）感到不舒服; 并且在驱动自动变速器的执行机构的驱动源发生故障的情况下，如果发动机扭矩不能正确地传递到输出轴，则这可能导致发动机失速或发动机转速突然增加，从而导致 车辆运行不正常

    Automitic transmission
    16.
    发明申请
    Automitic transmission 审中-公开
    自动传输

    公开(公告)号：US20030183030A1

    公开(公告)日：2003-10-02

    申请号：US10419862

    申请日：2003-04-22

    Applicant: Hitachi, Ltd.

    Inventor： Mitsuo Kayano ,  Ryaouichi Naganuma ,  Toshimichi Minowa ,  Hiroshi Ohnishi ,  Takashi Okada ,  Tatsuya Ochi ,  Hiroshi Sakamoto

    IPC: F16H003/08

    CPC classification number: F16H3/12 ,  F16H2061/0407 ,  Y10T74/19233 ,  Y10T74/19242 ,  Y10T74/19251 ,  Y10T74/19284 ,  Y10T74/194

    Abstract: The object of the present invention is to dissolve the shock originated from engaging and disengaging of the clutch during acceleration, when using a mesh type transmission provided with a clutch for engaging and disengaging the shift gear and the output shaft. A mesh type automatic transmission equipped with a plurality of shift gears 11, 13, 14 provided so as to rotate freely to an output shaft 5 for providing driving force to the wheels, a plurality of cogged clutches 12, 15 engaging with the output shaft 5, and a plurality of counter shift gears 8, 9, 10 corresponding to each speed, which are fixed to a counter shaft 6 rotated by the rotation of an input shaft 3 rotated from the power of an engine 43, and which mesh with the plurality of shift gears 11, 13, 14, for performing automatic shifting by controlling engagement of one of the plurality of cogged clutches 12, 15 with the voluntary shift gears of the plurality of shift gears 11, 13, 14 determined from the accelerator command value and the vehicle speed, is used. The automatic transmission is provided with an assist mechanism for transmitting the rotational force of the input shaft 3 to the output shaft 5 via the assist shaft 31 which rotates from the rotation of the counter shaft 6, when no cogged clutch of the plurality of cogged clutches 12, 15 is engaged with any of the plurality of shift gears 11, 13, 14, occurring during switching when an engaged cogged clutch of the plurality of cogged clutches 12, 15 is disengaged and one of the cogged clutch of the plurality of cogged clutches 12, 15 is to be engaged.

    Abstract translation: 本发明的目的是在使用设置有用于接合和分离变速齿轮和输出轴的离合器的网状变速器时，解除起动于加速期间离合器的接合和分离的冲击。 一种配备有多个变速齿轮11,13,14的网状自动变速器，其设置成能够向输出轴5自由转动，以向车轮提供驱动力;多个齿轮离合器12,15与输出轴5啮合 ，以及多个对应于每个速度的副换档齿轮8,9,10，它们固定到由从发动机43的动力旋转的输入轴3的旋转而旋转的相对轴6中，并且与多个 用于通过控制多个齿轮离合器12,15中的一个与由加速器指令值确定的多个变速齿轮11,13,14的自动变速齿轮的接合来执行自动换档，以及 车速，被使用。 自动变速器具有辅助机构，用于当没有多个齿轮离合器的齿轮离合器时，通过辅助轴31将输入轴3的旋转力传递到输出轴5，辅助轴31从相对轴6的旋转转动 当多个齿槽式离合器12,15的啮合齿轮离合器脱离时，多个齿轮离合器中的一个齿轮离合器之一与切换期间发生的多个变速齿轮11,13,14中的任何一个啮合， 12，15将被接纳。

    Method and system for controlling creep in automatic transmission
    17.
    发明申请
    Method and system for controlling creep in automatic transmission 失效
    自动变速器蠕变控制方法及系统

    公开(公告)号：US20030171186A1

    公开(公告)日：2003-09-11

    申请号：US10253474

    申请日：2002-09-25

    Applicant: Hitachi, Ltd.

    Inventor： Takashi Okada ,  Toshimichi Minowa ,  Mitsuo Kayano ,  Tatsuya Ochi ,  Hiroshi Sakamoto

    IPC: B60K041/28

    CPC classification number: B60W10/06 ,  B60K31/04 ,  B60W10/02 ,  B60W10/04 ,  B60W10/11 ,  B60W30/18 ,  B60W30/18063 ,  B60W30/1819 ,  B60W2520/26 ,  B60W2530/10 ,  B60W2530/16 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2540/16 ,  B60W2550/14 ,  B60W2550/142 ,  B60W2550/148 ,  B60W2710/025 ,  B60W2710/0605 ,  B60W2710/0666 ,  B60W2720/106 ,  F16H59/66 ,  F16H61/20 ,  F16H2059/663 ,  F16H2061/202 ,  Y10T477/6388 ,  Y10T477/646 ,  Y10T477/681

    Abstract: A method and system for controlling creep in an automatic transmission, comprising a first creep torque control means which, upon generation of an accelerator- and brake-pedal undepressed state in a running mode, generates a target creep speed, the target creep speed increasing as a function of time and settling to a predetermined value, the first creep torque control means then calculating a creep torque from the target creep speed, detecting a change in vehicle load from a speed deviation, correcting a target creep torque on the basis of the detected change in vehicle load, and controlling the engine torque on the basis of the correction, and a second creep torque control means which controls a transfer torque of a starting clutch (a first friction clutch) on the basis of a slipping speed of the starting clutch and the target creep torque, the creep controlling method and system being able to realize a stable creep running even against a change in running environment such as the existence of a slope or an increase of payload while suppressing wear and heat generation of the friction clutch.

    Abstract translation: 一种用于控制自动变速器中的蠕变的方法和系统，包括第一蠕变扭矩控制装置，其在运行模式下产生加速器和制动踏板未受冲击状态时产生目标蠕变速度，目标蠕变速度增加为 第一蠕变转矩控制装置然后根据目标蠕变速度计算蠕变扭矩，根据速度偏差检测车辆载荷的变化，基于检测到的目标蠕变扭矩来校正目标蠕变扭矩 基于校正来控制车辆负载和控制发动机扭矩;以及第二蠕变扭矩控制装置，其基于起动离合器（第一摩擦离合器）的滑动速度来控制起动离合器（第一摩擦离合器）的传递扭矩 和目标蠕变扭矩，蠕变控制方法和系统能够即使抵抗诸如exis的运行环境的变化也能实现稳定的蠕变运行 倾斜或增加有效载荷同时抑制摩擦离合器的磨损和发热。

    Control device for automatic transmission and control method therefor
    20.
    发明申请
    Control device for automatic transmission and control method therefor 失效
    自动变速器控制装置及其控制方法

    公开(公告)号：US20020066328A1

    公开(公告)日：2002-06-06

    申请号：US09855782

    申请日：2001-05-16

    Applicant: Hitachi Ltd.

    Inventor： Tatsuya Ochi ,  Toshimichi Minowa ,  Takashi Okada ,  Mitsuo Kayano ,  Hiroshi Sakamoto

    IPC: F16H061/00

    CPC classification number: F16H61/0437 ,  F16H3/12 ,  F16H61/682 ,  F16H2342/044 ,  Y10S477/904 ,  Y10T74/19251 ,  Y10T74/19274 ,  Y10T477/6939 ,  Y10T477/693958

    Abstract: In a control device for an automatic transmission which comprises a torque transmission means provided between an input shaft 5 and an output shaft 6 of a gear type transmission, wherein the torque transmission means in at least one change gear stage is constituted by a friction clutch 19, the torque transmission means in the other change gear stages are constituted by claw type clutches 25, 26 and when performing a change gear from one change gear stage to another change gear stage, the friction clutch 19 is controlled, a torque capacity detecting means 38 which detects or computes, torque capacity of the friction clutch 19 when performing a change gear to a predetermined change gear stage and a clutch release timing determining means 39 which determines a timing when releasing the claw type clutch into a neutral state based on the value detected or computed by the torque capacity detecting means 38, are further provided. Thereby, a generation of early release or tie-up of the claw type clutches due to variations caused by respective product differences and by secular change thereof at a time of up-shift clutch switching and a deterioration of a feeling during a change gear caused thereby are prevented.

    Abstract translation: 在一种用于自动变速器的控制装置中，其包括设置在齿轮式变速器的输入轴5和输出轴6之间的转矩传递装置，其中，至少一个变速级中的转矩传递装置由摩擦离合器19 在其他变速档中的转矩传递机构由爪式离合器25,26构成，当从一个变速档传动到另一变速级时进行变速，控制摩擦离合器19，转矩容量检测机构38 检测或计算摩擦离合器19在对预定变速档进行变速时的转矩容量;以及离合器释放定时判定装置39，其根据检测到的值确定将爪式离合器释放到空档状态时的定时 或由转矩容量检测装置38计算的。 因此，由于由于各种产品差异引起的变化及其在上变速离合器切换时由于其长期变化而引起的爪式离合器的早期释放或结合，并且由此引起的变速档期间的感觉劣化 被阻止

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