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    • 6. 发明授权
    • Automatic transmission
    • 自动变速器
    • US07887456B2
    • 2011-02-15
    • US12038357
    • 2008-02-27
    • Takaaki KatoTsuyoshi FukayaTakashi OgawaAkihito HongoyaHiroyuki Tsukamoto
    • Takaaki KatoTsuyoshi FukayaTakashi OgawaAkihito HongoyaHiroyuki Tsukamoto
    • F16H3/62
    • F16H3/66F16H2200/006F16H2200/0086F16H2200/2012F16H2200/2046F16H2200/2048F16H2200/2051
    • To provide an automatic transmission apparatus for forward 8-speed, which keeps a transmission gear ratio step in good balance.The apparatus includes: a first planetary gear device PG0 having a ring gear R0 connected to an input shaft; a second planetary gear device PG1 having a carrier C1 connected to a carrier C0 of the first planetary gear device, and a sun gear S1 connected to R0; a third planetary gear device PG2 having a ring gear R2 connected to C1; a fourth planetary gear device PG3 having a sun gear S3 connected to a sun gear S2 of the third planetary gear device; a first clutch C-1 that selectively connects S2 to the input shaft; a second clutch C-2 that selectively connects C2 to the input shaft; a first brake B-1 that selectively regulates the rotation of R0; a second brake B-2 that selectively regulates the rotation of R2; a third brake B-3 that selectively regulates the rotation of S0; and a fourth brake B-4 that selectively regulates the rotation of R3. The apparatus further includes a third clutch C-3 that connects R0 and S1 to the input shaft, or connects R2 to C1. PG0 to PG3 are each provided as a single pinion type.
    • 提供一种用于前进8速的自动变速装置,其保持变速器齿轮比的平衡。 该装置包括:具有连接到输入轴的齿圈R0的第一行星齿轮装置PG0; 具有连接到第一行星齿轮装置的行星架C0的行星架C1的第二行星齿轮装置PG1和连接到R0的太阳齿轮S1; 具有与C1连接的齿圈R2的第三行星齿轮装置PG2; 具有与第三行星齿轮装置的太阳齿轮S2连接的太阳齿轮S3的第四行星齿轮装置PG3; 选择性地将S2连接到输入轴的第一离合器C-1; 选择性地将C2连接到输入轴的第二离合器C-2; 选择性地调节R0的旋转的第一制动器B-1; 选择性地调节R2的旋转的第二制动器B-2; 选择性地调节S0的旋转的第三制动器B-3; 以及选择性地调节R3的旋转的第四制动器B-4。 该装置还包括将R0和S1连接到输入轴的第三离合器C-3,或将R2连接到C1。 PG0〜PG3分别设置为单小齿轮型。