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    • 38. 发明授权
    • Multi-speed transmission
    • 多速传输
    • US08021266B2
    • 2011-09-20
    • US12104173
    • 2008-04-16
    • Gregory HukillAndrew W. PhillipsScott H. WittkoppClinton E. CareyJames M. Hart
    • Gregory HukillAndrew W. PhillipsScott H. WittkoppClinton E. CareyJames M. Hart
    • F16H3/44
    • F16H3/666F16H2200/006F16H2200/2012F16H2200/2043F16H2200/2097
    • A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting mechanisms. Each of the planetary gear sets includes first, second and third members. The torque transmitting mechanisms include clutches and a brake. The torque transmitting mechanisms are each selectively engageable to interconnect at least one of the first, second, and third members of the planetary gear sets with at least another one of the first members, second members, third members of the planetary gear sets, and the stationary element. The torque transmitting mechanisms are selectively engageable in combinations of at least two to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.
    • 提供一种变速器,其具有输入构件,输出构件,四个行星齿轮组,多个联接构件和多个扭矩传递机构。 每个行星齿轮组包括第一,第二和第三构件。 扭矩传递机构包括离合器和制动器。 扭矩传递机构各自选择性地可接合以将行星齿轮组的第一,第二和第三构件中的至少一个与行星齿轮组的第一构件,第二构件,第三构件中的至少另一个相互连接,并且 固定元件 转矩传递机构可以选择性地接合至少两个组合,以便在输入构件和输出构件之间建立至少八个前进速度比和至少一个倒档速度比。