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MULTI-SPEED TRANSMISSION

  • US 20150099603A1
  • Filed: 10/04/2013
  • Published: 04/09/2015
  • Est. Priority Date: 10/04/2013
  • Status: Active Grant
First Claim
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1. A transmission comprising:

  • an input;

    an output;

    first, second, third, fourth, and fifth shafts;

    a first gearing arrangement configured to fixedly impose a linear speed relationship among the first shaft, the second shaft, the third shaft, and the fourth shaft;

    a second gearing arrangement configured to selectively impose a proportional speed relationship between the second shaft and the output;

    a third gearing arrangement configured to fixedly impose a linear speed relationship among the second shaft, the input, and the fifth shaft;

    a fourth gearing arrangement configured to selectively impose a proportional speed relationship between the fifth shaft and the output;

    a first brake configured to selectively hold the third shaft against rotation;

    a second brake configured to selectively hold the fourth shaft against rotation;

    a first clutch configured to selectively couple the input to the third shaft; and

    a second clutch configured to selectively couple the input to the fourth shaft.

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