WO2011044818A1 - 六档自动变速器的动力传动系统 - Google Patents

六档自动变速器的动力传动系统 Download PDF

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Publication number
WO2011044818A1
WO2011044818A1 PCT/CN2010/077354 CN2010077354W WO2011044818A1 WO 2011044818 A1 WO2011044818 A1 WO 2011044818A1 CN 2010077354 W CN2010077354 W CN 2010077354W WO 2011044818 A1 WO2011044818 A1 WO 2011044818A1
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Prior art keywords
clutch
brake
planetary gear
carrier
transmission
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PCT/CN2010/077354
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English (en)
French (fr)
Inventor
张三阳
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奇瑞汽车股份有限公司
芜湖普威技研有限公司
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Publication of WO2011044818A1 publication Critical patent/WO2011044818A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62Gearings having three or more central gears
    • F16H3/66Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/003Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0052Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/20Transmissions using gears with orbital motion
    • F16H2200/2002Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/201Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/20Transmissions using gears with orbital motion
    • F16H2200/203Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2043Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with five engaging means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/20Transmissions using gears with orbital motion
    • F16H2200/203Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2048Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with seven engaging means

Definitions

  • the invention relates to a power transmission system of a six-speed automatic transmission, and belongs to the technical field of automobile manufacturing. Background technique
  • the shifting mechanism of the automatic transmission consists of a plurality of planetary gear sets, friction elements that transmit and convert rotational speed and torque, such as clutches, brakes, and one-way clutches and their servo systems, which transmit the rotational speed of the torque converter and The torque is converted and sent to the output shaft to drive the car.
  • friction elements there are as many as three clutches in the six-speed automatic transmission, and the efficiency reduction caused by the friction loss is inevitable. Therefore, people have been studying automatic transmissions that are more compact, more convenient to assemble, and have less power loss. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a power transmission system for a six-speed automatic transmission in view of the deficiencies of the prior art, which makes the automatic transmission less power loss, more compact, and more convenient to assemble.
  • a power transmission system for a six-speed automatic transmission includes a transmission housing, a first planetary gear set having a first sun gear, a first ring gear and a first carrier; and a second sun gear and a second tooth a second planetary gear set of the ring and the second carrier; a third planetary gear set having a third sun gear, a third ring gear and a third carrier; a first clutch, a second clutch, a first brake, and a second brake
  • the third brake, the central support, the one-way clutch, the key is that the third planetary gear set, the first planetary gear set and the second planetary gear set are sequentially arranged, and the first clutch and the second clutch are fixed on the third planet
  • the inner hub is connected to the input shaft of the transmission; the first sun gear is fixedly connected to the input shaft and always serves as an input member, and the second carrier is always fixedly connected to the at least one output gear.
  • the third ring gear is fixedly coupled to the second carrier, the third carrier is fixedly coupled to the first ring gear, and the first carrier and the second ring gear are fixed
  • the third carrier is variably connected to the input shaft through the second clutch;
  • the third sun gear is variably connected to the input shaft through the first clutch;
  • the second sun gear is variably connected to the transmission housing through the third brake;
  • the three-carrier carrier is also variably coupled to the transmission housing via a second brake;
  • the first brake is fixed to the transmission housing on the side of the first clutch, and the third sun gear is co-administered with the first clutch;
  • Transmission on the side of the three planetary gear sets a third brake is fixed to the transmission housing on the side of the second planetary gear set by a central support;
  • the one-way clutch is fixed to the transmission housing between the second brake and the central support, and is shared with the second brake Dominate the third carrier.
  • the third planetary gear set, the first planetary gear set and the second planetary gear set of the power transmission system of the transmission are sequentially arranged, and the first clutch, the second clutch, the first brake, the second brake, the third brake, and the central support
  • Each shifting mechanism such as a one-way clutch, is disposed at the periphery of the planetary gear set, so that the structure of the entire transmission is more compact and the assembly is more convenient.
  • the present invention uses only two clutches to complete the six-speed shifting, resulting in more friction loss. Small, that is, the power loss is smaller.
  • the first clutch and the second clutch are substantially aligned in a radial direction, the second clutch is disposed between the first clutch and the third planetary gear set, and the servos of the first clutch and the second clutch are respectively mounted under the clutch plate group thereof .
  • the inner hub of the transmission is provided with a support arm, the support arm includes a horizontal wall parallel to the input shaft and a side wall perpendicular to the input shaft and protruding from the horizontal wall, the first clutch and the second clutch Arranged on both sides of the side wall, the clutch plates of the first clutch and the second clutch are connected to the horizontal wall by splines and axially limited by the side wall, the first servo mechanism of the first clutch and the second clutch The two servo mechanisms are respectively mounted in cavities formed between the horizontal wall and the input shaft below.
  • the first brake shares a first clutch hub with the first clutch, the first brake is fixed to the transmission housing by a spline, and is axially restrained by the snap ring, and the servo mechanism of the first brake is disposed on the casing of the transmission housing In the body wall, the arrangement is convenient for the first brake and the first clutch to jointly administer the third sun gear for gear shifting.
  • the servo of the second brake is located in the central support, and the piston of the servo mechanism passes through the one-way clutch against the friction plate set of the second brake.
  • Such an arrangement can fully utilize the axial space of the one-way clutch to arrange the piston of the second brake, not only in the center, but also in the prior art, in which the second brake and the one-way clutch are respectively disposed on both sides of the central support.
  • the reduced volume of the support also reduces the axial length of the entire transmission.
  • the friction plate group and the servo mechanism of the third brake are all located in the central support, and the central support is fixed to the transmission housing through the spline, and is axially limited by the clamp ring together with the pressure plate of the friction plate group of the third brake. Located on the transmission housing.
  • Such an arrangement can reduce the snap ring of the friction plate group that fixes the third brake, and the assembly is simpler and more convenient than the conventional arrangement in which the friction plate group of the third brake is fixed in the central support by the snap ring.
  • the one-way clutch is fixed to the transmission housing through a spline, and is axially fixed to the transmission housing through a retaining ring, and the one-way clutch shares a second brake hub with the second brake, thereby facilitating the one-way clutch and the second brake
  • the third carrier is jointly controlled to reduce the frequency of use of the second brake and improve the life of the transmission.
  • the power transmission system of the six-speed automatic transmission of the invention optimizes the design of the clutch, the brake, the structure of the central support, and rationally arranges the positions of the planetary gear sets and the shifting parts, so that the structure of the automatic transmission is more compact, the assembly is simpler, and the power loss is lost. smaller.
  • FIG. 1 is a schematic view showing the principle of a power transmission system of a six-speed automatic transmission according to the present invention
  • FIG. 2 is a schematic structural view of a power transmission system of a six-speed automatic transmission of the present invention. detailed description
  • Fig. 1 is a schematic view showing the principle of a power transmission system of a six-speed automatic transmission of the present invention.
  • the power transmission system of the six-speed automatic transmission of this embodiment includes a transmission housing 10, a first planetary gear set 15 having a first sun gear S1, a first ring gear R1 and a first carrier P1; a second planetary gear set 16 having a second sun gear S2, a second ring gear R2 and a second carrier P2; a third planetary gear set having a third sun gear S3, a third ring gear R3 and a third carrier P3 14; a first clutch 6, a second clutch 5, a first brake 7, a second brake 8, a third brake 13, a central support 12, a one-way clutch 9, said third planetary gear set 14, a first planetary gear set 15 and the second planetary gear set 16 are sequentially arranged, and the first clutch 6 and the second clutch 5 are fixed to the inner hub 2 of the transmission on the front
  • the first sun gear S1 is fixedly connected to the input shaft 1 and always serves as an input member.
  • the second carrier P2 is always fixedly connected to the at least one output gear OP as an output member, and the third ring gear R3 is fixed to the second carrier P2. Connection, third carrier P3 and first ring gear R1
  • the first carrier P1 is fixedly connected to the second ring gear R2;
  • the third carrier P3 is variably connected to the input shaft 1 through the second clutch 5;
  • the third sun gear S3 is coupled to the input shaft 1 through the first clutch 6
  • the second sun gear S2 is variably connected to the transmission housing 10 via the third brake 13;
  • the third carrier P3 is also variably connected to the transmission housing 10 via the second brake 8;
  • the first brake 7 is fixed at the first a third sun gear S3 is co-ordinated with the first clutch 6 on the transmission housing 10 on the side of the clutch 6;
  • the second brake 8 is fixed to the transmission housing 10 on the side of the third planetary gear set 14;
  • FIG. 2 is a schematic structural view of a power transmission system of a six-speed automatic transmission of the present invention.
  • the third planetary gear set 14, the first planetary gear set 15 and the second planetary gear set 16 are sequentially arranged, the first clutch 6, the second clutch 5 are substantially aligned in the radial direction, and the second clutch 5 is arranged in the first
  • the first servo mechanism 4 of the first clutch 6 is mounted below its clutch plate group
  • the second servo mechanism 3 of the second clutch 5 is mounted below its clutch plate group.
  • the inner hub 2 of the transmission is provided with a support arm including a horizontal wall 20 parallel to the input shaft 1 and a side wall 19 perpendicular to the input shaft 1 and protruding from the horizontal wall 20, said A clutch 6 and a second clutch 5 are arranged on both sides of the side wall 19.
  • the clutch plates of the first clutch 6 and the second clutch 5 are connected to the horizontal wall 20 by splines and axially restricted by the side wall 19,
  • the first servo mechanism 4 and the second servo mechanism 3 of the first clutch 6 and the second clutch 5 are respectively mounted in cavities formed between the horizontal wall 20 and the input shaft 1 below.
  • the first brake 7 shares the first clutch hub 17 with the first clutch 6.
  • the first brake 7 is fixed to the transmission housing 10 by splines and is axially restrained by the snap ring.
  • the servo mechanism of the first brake 7 is arranged in the transmission.
  • the housing wall of the housing 10 is arranged such that the first brake 7 and the first clutch 6 jointly administer the third sun gear for gear shifting.
  • the servo of the second brake 8 is located in the central support 12, and the piston 11 of the servo is passed through the one-way clutch 9 against the friction plate set of the second brake 8.
  • the friction plate group and the servo mechanism of the third brake 13 are both located in the central support 12, the central support 12 is fixed to the transmission housing 10 by splines, and is combined with the pressure plate of the friction plate group of the third brake 13
  • the snap ring is axially constrained on the transmission housing 10.
  • the one-way clutch 9 is fixedly coupled to the transmission housing 10 via a spline, and is axially fixed to the transmission housing 10 via a retaining ring.
  • the one-way clutch 9 and the second brake 8 share a second brake hub 18, which facilitates the single
  • the third carrier is commonly supported by the clutch 9 and the second brake 8, so that the frequency of use of the second brake 8 is lowered, and the life of the transmission is improved.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Description

六档自动变速器的动力传动系统
技术领域
本发明涉及六档自动变速器的动力传动系统, 属于汽车制造技术领域。 背景技术
自动变速箱的变速机构由多个行星齿轮组、 传递和转换转速及扭矩的摩擦元件, 如各离合器、 制动器和单向离合器及其伺服系统组成, 它将液力变矩器传来的转速和 力矩变换后传送给输出轴, 以驱动汽车。 变速器的档数越多, 变速器的速比就可以设 计的越理想, 车辆也就可以具有更好的燃油经济性和驾驶性能, 但是档位越多, 变速 箱的体积也就越大, 这就使得前舱空间更加紧张。 另外随着摩擦元件的增多, 有的六 档自动变速器的离合器多达三个, 由摩擦损失带来的效率降低也无可避免。 因此, 人 们一直在研究结构更紧凑、 装配更方便, 动力损失更小的自动变速器。 发明内容
本发明所要解决的技术问题在于, 针对现有技术的不足提供一种六档自动变速器 的动力传动系统, 使得自动变速器的动力损失更小、 结构更加紧凑、 装配更加方便。
本发明所提供的六档自动变速器的动力传动系统, 包括变速器壳体、 具第一太阳 轮、 第一齿圈和第一齿轮架的第一行星齿轮组; 具第二太阳轮、 第二齿圈和第二齿轮 架的第二行星齿轮组; 具第三太阳轮、 第三齿圈和第三齿轮架的第三行星齿轮组; 第 一离合器、 第二离合器、 第一制动器、 第二制动器、 第三制动器、 中央支撑、 单向离 合器, 关键在于所述第三行星齿轮组、 第一行星齿轮组和第二行星齿轮组依次排列, 所述第一离合器、 第二离合器固定在第三行星齿轮组前侧的变速器内毂上, 所述内毂 与变速器的输入轴相连; 第一太阳轮与输入轴固定连接, 始终作为输入部件, 第二齿 轮架通过与至少一个输出齿轮固定连接而始终作为输出部件, 第三齿圈与第二齿轮架 固定连接, 第三齿轮架与第一齿圈固定连接, 第一齿轮架与第二齿圈固定连接; 第三 齿轮架通过第二离合器与输入轴可变连接; 第三太阳轮通过第一离合器与输入轴可变 连接; 第二太阳轮通过第三制动器与变速器壳体可变连接; 第三齿轮架还通过第二制 动器与变速器壳体可变连接; 第一制动器固定在第一离合器旁侧的变速器壳体上, 并 与第一离合器共同支配第三太阳轮; 第二制动器固定在第三行星齿轮组旁侧的变速器 壳体上; 第三制动器通过中央支撑固定在第二行星齿轮组旁侧的变速器壳体上; 单向 离合器固定在第二制动器和中央支撑之间的变速器壳体上, 并与第二制动器共同支配 第三齿轮架。
上述变速器的动力传递系统的第三行星齿轮组、 第一行星齿轮组和第二行星齿轮 组依次排列, 而第一离合器、 第二离合器、 第一制动器、 第二制动器、 第三制动器、 中央支撑、 单向离合器等各换挡机构均布置在行星齿轮组的外围, 使得整个变速器的 结构更加紧凑, 装配更加方便, 另外本发明只使用了两个离合器即可完成六档变速, 使得摩擦损失更小, 即动力损失更小。
所述第一离合器、 第二离合器径向基本对齐, 第二离合器布置在第一离合器与第 三行星齿轮组之间, 第一离合器、 第二离合器的伺服机构分别安装在其离合器片组的 下方。 具体地说, 变速器的内毂环绕设有支撑臂, 所述支撑臂包括平行于输入轴的水 平壁和垂直于输入轴并突出于水平壁的侧壁, 所述第一离合器和第二离合器分列在侧 壁的两边, 第一离合器和第二离合器的离合器片通过花键与水平壁连接, 并通过侧壁 轴向限位, 所述第一离合器的第一伺服机构和第二离合器的第二伺服机构分别安装在 其下方的水平壁与输入轴之间形成的空腔内。 通过将第一离合器的第一伺服机构、 第 二离合器的第二伺服机构分别安装在其离合器片组的下方,可以有效减少第一离合器、 第二离合器所占用的轴向空间长度, 从而减少自动变速器的体积。
所述第一制动器与第一离合器共用第一离合器毂, 第一制动器通过花键固定在变 速器壳体上, 并通过卡环轴向限位, 第一制动器的伺服机构布置于变速器壳体的壳体 壁内, 这样布置方便第一制动器与第一离合器共同支配第三太阳轮, 进行档位变换。
所述第二制动器的伺服机构位于中央支撑内, 该伺服机构的活塞穿过单向离合器 与第二制动器的摩擦片组相抵。 这样的布置形式与现有技术中将第二制动器和单向离 合器分别布置在中央支撑两侧的方式相比, 可以充分利用单向离合器的轴向空间来布 置第二制动器的活塞, 不仅使得中央支撑的体积变小, 还能够减小整个变速器的轴向 长度。
所述第三制动器的摩擦片组及伺服机构均位于中央支撑内, 所述中央支撑通过花 键与变速器壳体固接, 并与第三制动器的摩擦片组的压板一起被卡环轴向限位于变速 器壳体上。 这样的布置形式与将第三制动器的摩擦片组采用卡环固定在中央支撑内的 传统布置方式相比, 可以减少一个固定第三制动器的摩擦片组的卡环, 使装配更加简 单方便。 所述单向离合器通过花键与变速器壳体固接, 并通过挡圈轴向固定在变速器壳体 上, 单向离合器与第二制动器共用第二制动器毂, 这样方便单向离合器与第二制动器 共同支配第三齿轮架, 使第二制动器的使用频次降低, 提高变速器的寿命。
本发明的六档自动变速器的动力传动系统通过优化设计离合器、 制动器、 中央支 撑的结构, 合理布置各行星齿轮组及换挡部件的位置, 使自动变速器的结构更加紧凑、 装配更加简单, 动力损失更小。 附图说明
图 1是本发明的六档自动变速器的动力传动系统的原理示意图;
图 2是本发明的六档自动变速器的动力传动系统的结构示意图。 具体实施方式
下面结合具体实施例和附图对本发明的技术方案进行详细地说明。
图 1是本发明的六档自动变速器的动力传动系统的原理示意图。 如图 1所示, 本 实施例的六档自动变速器的动力传动系统包括变速器壳体 10、具第一太阳轮 Sl、第一 齿圈 R1和第一齿轮架 P1的第一行星齿轮组 15; 具第二太阳轮 S2、第二齿圈 R2和第 二齿轮架 P2的第二行星齿轮组 16; 具第三太阳轮 S3、 第三齿圈 R3和第三齿轮架 P3 的第三行星齿轮组 14; 第一离合器 6、 第二离合器 5、 第一制动器 7、 第二制动器 8、 第三制动器 13、 中央支撑 12、 单向离合器 9, 所述第三行星齿轮组 14、 第一行星齿轮 组 15和第二行星齿轮组 16依次排列, 第一离合器 6、 第二离合器 5固定在第三行星 齿轮组 14前侧的变速器的内毂 2上, 所述内毂 2与变速器的输入轴 1相连; 第一太阳 轮 S1与输入轴 1固定连接, 始终作为输入部件, 第二齿轮架 P2通过与至少一个输出 齿轮 OP固定连接而始终作为输出部件, 第三齿圈 R3与第二齿轮架 P2固定连接, 第 三齿轮架 P3与第一齿圈 R1固定连接, 第一齿轮架 P1与第二齿圈 R2固定连接; 第三 齿轮架 P3通过第二离合器 5与输入轴 1可变连接; 第三太阳轮 S3通过第一离合器 6 与输入轴 1可变连接; 第二太阳轮 S2通过第三制动器 13与变速器壳体 10可变连接; 第三齿轮架 P3还通过第二制动器 8与变速器壳体 10可变连接; 第一制动器 7固定在 第一离合器 6旁侧的变速器壳体 10上, 并与第一离合器 6共同支配第三太阳轮 S3; 第二制动器 8固定在第三行星齿轮组 14旁侧的变速器壳体 10上;第三制动器 13通过 中央支撑 12固定在第二行星齿轮组 16旁侧的变速器壳体 10上;单向离合器 9固定在 第二制动器 8和中央支撑 12之间的变速器壳体 10上, 并与第二制动器 8共同支配第 三齿轮架 P3。
图 2是本发明的六档自动变速器的动力传动系统的结构示意图。 如图 2所示, 第 三行星齿轮组 14、第一行星齿轮组 15和第二行星齿轮组 16依次排列, 第一离合器 6、 第二离合器 5径向基本对齐, 第二离合器 5布置在第一离合器 6与第三行星齿轮组 14 之间, 第一离合器 6的第一伺服机构 4安装在其离合器片组的下方, 第二离合器 5的 第二伺服机构 3安装在其离合器片组的下方; 具体地说, 变速器的内毂 2环绕设有支 撑臂,所述支撑臂包括平行于输入轴 1的水平壁 20和垂直于输入轴 1并突出于水平壁 20的侧壁 19, 所述第一离合器 6和第二离合器 5分列在侧壁 19的两边, 第一离合器 6和第二离合器 5的离合器片组通过花键与水平壁 20连接, 并通过侧壁 19轴向限位, 所述第一离合器 6和第二离合器 5的第一伺服机构 4、 第二伺服机构 3分别安装在其 下方的水平壁 20与输入轴 1之间形成的空腔内。
第一制动器 7与第一离合器 6共用第一离合器毂 17, 第一制动器 7通过花键固定 在变速器壳体 10上, 并通过卡环轴向限位, 第一制动器 7的伺服机构布置于变速器壳 体 10的壳体壁内, 这样布置方便第一制动器 7与第一离合器 6共同支配第三太阳轮, 进行档位变换。
第二制动器 8的伺服机构位于中央支撑 12内, 该伺服机构的活塞 11穿过单向离 合器 9与第二制动器 8的摩擦片组相抵。
所述第三制动器 13的摩擦片组及伺服机构均位于中央支撑 12内, 所述中央支撑 12通过花键与变速器壳体 10固接, 并与第三制动器 13的摩擦片组的压板一起被卡环 轴向限位于变速器壳体 10上。
所述单向离合器 9通过花键与变速器壳体 10固接, 并通过挡圈轴向固定在变速器 壳体 10上, 单向离合器 9与第二制动器 8共用第二制动器毂 18, 这样方便单向离合 器 9与第二制动器 8共同支配第三齿轮架, 使第二制动器 8的使用频次降低, 提高变 速器的寿命。

Claims

权利要求书
1、 一种六档自动变速器的动力传动系统, 包括变速器壳体 (10)、 具第一太阳轮
(51)、 第一齿圈 (R1) 和第一齿轮架 (P1) 的第一行星齿轮组 (15); 具第二太阳轮
(52)、 第二齿圈 (R2) 和第二齿轮架 (P2) 的第二行星齿轮组 (16); 具第三太阳轮 (S3)、第三齿圈(R3)和第三齿轮架(P3)的第三行星齿轮组(14); 第一离合器(6)、 第二离合器(5)、第一制动器(7)、第二制动器(8)、第三制动器(13)、中央支撑( 12)、 单向离合器 (9), 其特征在于, 所述第三行星齿轮组 (14)、 第一行星齿轮组 (15) 和 第二行星齿轮组 (16) 依次排列, 所述第一离合器 (6)、 第二离合器 (5) 固定在第三 行星齿轮组 (14)前侧的变速器内毂上, 所述内毂与变速器的输入轴 (1) 相连; 第一 太阳轮 (S1) 与输入轴 (1) 固定连接, 始终作为输入部件, 第二齿轮架 (P2) 通过 与至少一个输出齿轮固定连接而始终作为输出部件,第三齿圈(R3)与第二齿轮架(P2) 固定连接, 第三齿轮架 (P3) 与第一齿圈 (R1) 固定连接, 第一齿轮架 (P1) 与第二 齿圈 (R2) 固定连接; 第三齿轮架 (P3) 通过第二离合器 (5) 与输入轴 (1) 可变连 接; 第三太阳轮(S3)通过第一离合器(6)与输入轴(1)可变连接; 第二太阳轮(S2) 通过第三制动器 (13) 与变速器壳体 (10) 可变连接; 第三齿轮架 (P3) 还通过第二 制动器 (8) 与变速器壳体 (10) 可变连接; 第一制动器 (7) 固定在第一离合器 (6) 旁侧的变速器壳体 (10) 上, 并与第一离合器 (6) 共同支配第三太阳轮 (S3); 第二 制动器(8)固定在第三行星齿轮组(14)旁侧的变速器壳体(10)上; 第三制动器(13) 通过中央支撑 (12) 固定在第二行星齿轮组 (16) 旁侧的变速器壳体 (10) 上; 单向 离合器 (9) 固定在第二制动器 (8) 和中央支撑 (12) 之间的变速器壳体 (10) 上, 并与第二制动器 (8) 共同支配第三齿轮架 (P3)。
2、 根据权利要求 1所述的六档自动变速器的动力传动系统, 其特征在于, 所述第 一离合器 (6)、 第二离合器 (5) 径向对齐, 第二离合器 (5) 布置在第一离合器 (6) 与第三行星齿轮组 (14) 之间, 第一离合器 (6) 的第一伺服机构 (4) 及第二离合器 (5) 的第二伺服机构 (3) 分别安装在其离合器片组的下方。
3、 根据权利要求 (2) 所述的六档自动变速器的动力传动系统, 其特征在于, 变 速器的内毂 (2)环绕设有支撑臂, 所述支撑臂包括平行于输入轴 (1) 的水平壁 (20) 和垂直于输入轴 (1) 并突出于水平壁的侧壁 (19), 所述第一离合器 (6) 和第二离合 器 (5) 分列在侧壁 (19) 的两边, 第一离合器 (6) 和第二离合器 (5) 的离合器片通 过花键与水平壁 (20) 连接, 并通过侧壁 (19) 轴向限位, 所述第一离合器 (6) 的第 一伺服机构 (4)和第二离合器 (5) 的第二伺服机构 (3) 分别安装在其下方的水平壁 (20) 与输入轴 (1) 之间形成的空腔内。
4、 根据权利要求 1所述的六档自动变速器的动力传动系统, 其特征在于, 所述第 一制动器 (7) 与第一离合器 (6) 共用第一离合器毂 (17), 第一制动器 (7) 通过花 键固定在变速器壳体 (10) 上, 并通过卡环轴向限位, 第一制动器 (7) 的伺服机构布 置于变速器壳体 (10) 的壳体壁内。
5、 根据权利要求 1所述的六档自动变速器的动力传动系统, 其特征在于, 所述第 二制动器 (8) 的伺服机构位于中央支撑 (12) 内, 所述伺服机构的活塞 (11) 穿过单 向离合器 (9) 与第二制动器 (8) 的摩擦片组相抵。
6、 根据权利要求 1所述的六档自动变速器的动力传动系统, 其特征在于, 所述第 三制动器 (13) 的摩擦片组及伺服机构均位于中央支撑 (12) 内, 所述中央支撑 (12) 通过花键与变速器壳体 (10) 固接, 并与第三制动器 (13) 的摩擦片组的压板一起被 卡环轴向限位于变速器壳体 (10) 上。
7、 根据权利要求 1所述的六档自动变速器的动力传动系统, 其特征在于, 所述单 向离合器 (9)通过花键与变速器壳体 (10) 固接, 并通过挡圈轴向固定在变速器壳体
(10) 上, 单向离合器 (9) 与第二制动器 (8) 共用第二制动器毂 (18)。
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