US 11,673,462 B2
Electric drive axle with lubrication system
Eric M. Engerman, Plymouth, MI (US)
Assigned to Dana Automotive Systems Group, LLC, Maumee, OH (US)
Filed by Dana Automotive Systems Group, LLC, Maumee, OH (US)
Filed on Aug. 19, 2022, as Appl. No. 17/821,025.
Application 17/821,025 is a division of application No. 16/795,280, filed on Feb. 19, 2020, granted, now 11,518,225.
Prior Publication US 2022/0402342 A1, Dec. 22, 2022
Int. Cl. F16H 57/04 (2010.01); B60K 1/00 (2006.01); B60K 17/04 (2006.01); B60K 17/16 (2006.01); F16D 13/52 (2006.01); F16D 25/062 (2006.01); F16D 25/0638 (2006.01); F16H 3/089 (2006.01); F16D 25/10 (2006.01); F16H 63/30 (2006.01)
CPC B60K 1/00 (2013.01) [B60K 17/046 (2013.01); B60K 17/20 (2013.01); F16D 13/52 (2013.01); F16D 25/062 (2013.01); F16H 57/042 (2013.01); F16H 57/043 (2013.01); F16H 57/0426 (2013.01); B60K 2001/001 (2013.01); B60Y 2400/73 (2013.01); F16D 25/0638 (2013.01); F16D 25/10 (2013.01); F16H 3/089 (2013.01); F16H 63/3026 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for operating a lubrication system in an electric drive axle, comprising:
flowing a lubricant through a lubrication channel between an outer surface of an axle shaft and an inner surface of an output shaft;
flowing the lubricant from the lubrication channel to an interior of a first clutch; and
flowing the lubricant out of the first clutch through a gear coupled to the first clutch;
where the output shaft is rotationally coupled to a planetary gear assembly; and
where the planetary gear assembly is directly coupled to a differential.