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Transaxle and two-speed drive module thereof

  • US 10,808,814 B2
  • Filed: 03/16/2017
  • Issued: 10/20/2020
  • Est. Priority Date: 04/28/2016
  • Status: Active Grant
First Claim
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1. A transaxle two-speed drive module comprising:

  • an input shaft;

    an output shaft; and

    a gear assembly for transmitting power between the input shaft and the output shaft, the gear assembly comprises;

    a two-speed gear set having two sets of shift gear pairs with different speed ratios, an intermediate shaft, and a synchronizer,the shift gear pairs including an intermeshing idler gear and a solid idler gear, the synchronizer being adapted for engaging with or disengaging from the intermeshing idler gear,the shift gear pairs being adapted to be drive-connected or disconnected from the input shaft in order to change an output rotational speed of the input shaft to different speed ratios;

    a planetary gear set having an output end that is drive-connected to the output shaft;

    a connecting gear set that drivingly connects the two-speed gear set and the planetary gear set; and

    the intermeshing idler gear and the synchronizer are on the input shaft, and the solid idler gear is on the intermediate shaft, and the connecting gear set is located between the two sets of the shift gear pairs, in an axial direction of the intermediate shaft.

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