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    • 9. 发明授权
    • Electrically variable transmission with selective fixed ratio operation
    • 具有选择性固定比例运行的电动变速器
    • US07278941B2
    • 2007-10-09
    • US11071406
    • 2005-03-03
    • Alan G. HolmesMichael R. SchmidtDonald KlemenJames D. HendricksonHenryk Sowul
    • Alan G. HolmesMichael R. SchmidtDonald KlemenJames D. HendricksonHenryk Sowul
    • F16H3/72
    • F16H3/728B60K1/02B60K6/365B60K6/387B60K6/445F16H2037/104F16H2037/106Y02T10/6239
    • An electrically variable transmission includes: an input member to receive power from an engine; an output member; first and second motor/generators; and first and second differentially geared planetary gear sets each having first, second and third gear members. The input member is continuously connected to the first member of the first planetary gear set, and the output member is continuously connected to the first member of the second planetary gear set. The first motor/generator is continuously connected to the second member of the first planetary gear set, and selectively connected to the second member of the second planetary gear set. The second motor/generator is continuously connected with the third member of the second planetary gear set. A first torque transfer device selectively grounds the second member of the second planetary gear set. A second torque transfer device selectively connects the second member of the second planetary gear set to the second member of the first planetary gear set. An optional third torque transfer device selectively grounds the third member of the first planetary gear set. An optional fourth torque transfer device selectively connects at least two of the members together such that all members of the first planetary gear set rotate together at the same speed. An optional fifth torque transfer device selectively connects the third member of the first planetary gear set with the third member of the second planetary gear set.
    • 电动变速器包括:用于从发动机接收动力的输入构件; 输出成员; 第一和第二电机/发电机; 以及分别具有第一,第二和第三齿轮构件的第一和第二差速齿轮组。 输入构件连续地连接到第一行星齿轮组的第一构件,并且输出构件连续地连接到第二行星齿轮组的第一构件。 第一电动机/发电机连续地连接到第一行星齿轮组的第二构件,并且选择性地连接到第二行星齿轮组的第二构件。 第二电动机/发电机与第二行星齿轮组的第三构件连续地连接。 第一扭矩传递装置选择性地接地第二行星齿轮组的第二构件。 第二扭矩传递装置选择性地将第二行星齿轮组的第二构件连接到第一行星齿轮组的第二构件。 可选的第三扭矩传递装置选择性地接地第一行星齿轮组的第三构件。 可选的第四扭矩传递装置选择性地将至少两个构件连接在一起,使得第一行星齿轮组的所有构件以相同的速度一起旋转。 可选的第五扭矩传递装置选择性地将第一行星齿轮组的第三构件与第二行星齿轮组的第三构件连接。