US 12,352,341 B2
Two speed electric vehicle transaxle architecture with dual simple planetary gearsets and a layshaft gear
Raunak Bindra, Novi, MI (US); and Thomas McGinn, Novi, 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. 9, 2023, as Appl. No. 18/446,769.
Claims priority of provisional application 63/371,036, filed on Aug. 10, 2022.
Prior Publication US 2024/0052916 A1, Feb. 15, 2024
Int. Cl. F16H 37/08 (2006.01); F16H 61/28 (2006.01)
CPC F16H 37/0833 (2013.01) [F16H 61/2807 (2013.01); F16H 2200/0034 (2013.01); F16H 2200/2007 (2013.01); F16H 2200/2033 (2013.01)] 18 Claims
OG exemplary drawing
 
8. An assembly for a trans axle, comprising:
a first planetary gearset configured to receive a power output from an electric machine;
a second planetary gearset configured to transfer power from the first planetary gearset to a first layshaft gear;
a second layshaft gear configured to transfer power from the first layshaft gear to wheels; and
a shifting mechanism arranged between the first planetary gearset and the second planetary gearset, the shifting mechanism configured to couple to the first planetary gearset during a first mode, couple to the second planetary gearset during a second mode, and be spaced away from the first planetary gearset and the second planetary gearset, wherein the shifting mechanism comprises a shift fork with teeth on its outer diameter that interlock with a transmission housing, and wherein the shift fork further comprises teeth on its inner diameter that interlock with a ring gear of the second planetary gearset and block rotation thereof during the second mode.