US 12,276,323 B2
Transmission and method for operation of the transmission
William F. Waltz, Toledo, OH (US)
Assigned to DANA HEAVY VEHICLE SYSTEMS GROUP, LLC, Maumee, OH (US)
Filed by Dana Heavy Vehicle Systems Group, LLC, Maumee, OH (US)
Filed on Jun. 21, 2022, as Appl. No. 17/808,059.
Claims priority of provisional application 63/224,335, filed on Jul. 21, 2021.
Prior Publication US 2023/0025121 A1, Jan. 26, 2023
Int. Cl. F16H 3/00 (2006.01); B60K 17/02 (2006.01); B60K 17/12 (2006.01); F16H 3/087 (2006.01)
CPC F16H 3/006 (2013.01) [B60K 17/02 (2013.01); B60K 17/12 (2013.01); F16H 3/087 (2013.01); F16H 2200/0021 (2013.01); F16H 2200/0039 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transmission comprising:
an input shaft with a first pair of gears that reside thereon and configured to rotationally couple to an electric motor via one or more shafts and/or gears;
a first clutch positioned between the first pair of gears and designed to:
in a first position, rotationally couple a selected one gear in the first pair of gears to the input shaft; and in a second position, rotationally coupled another gear in the first pair of gears to the input shaft; a layshaft with a second pair of gears fixedly coupled thereto;
an output shaft with a third pair of gears that reside thereon; and
a second clutch positioned between the third pair of gears and designed to:
selectively in a first position, rotationally couple a selected one gear in the third pair of gears to the output shaft;
and in a second position, rotationally coupled another gear in the third pair of gears to the output shaft;
wherein the second pair of gears mesh with the first pair of gears and the third pair of gears;
wherein bearings are positioned between the first pair of gears and the input shaft;
wherein bearings are positioned between the third pair of gears and the output shaft;
wherein the output shaft is directly rotationally coupled to a differential via an output shaft gear without any gears and/or other intervening components positioned therebetween; and
wherein the layshaft is positioned between the input shaft and the output shaft with regard to an axis that extends through the input shaft and the output shaft.