Heavy duty transmission architecture
AssigneeEaton Cummins Automated Transmission Technologies, LLC
InventorsPaul R. Peterson, Joseph D. Reynolds
Life of this patent
Estimating the term…
Abstract
A transmission includes a main shaft having two or more main shaft clutches that couple gears to at least one countershaft, and an automated manual transmission coupled to the main shaft via the at least one countershaft. The automated manual transmission includes a front input shaft coupled directly to a main clutch and having a first clutch coupleable to the at least one countershaft, and a rear input shaft coupled to the front input shaft and having a second clutch coupleable to the at least one countershaft. The automated manual transmission is operable to selectively engage the first clutch and the second clutch.
Claims10
A transmission, comprising:
- a main shaft having three main shaft clutches that couple at least three gears to two countershafts;
- an automated manual transmission splitter section coupled to the main shaft via the two countershafts, the splitter section comprising:
- a front input shaft coupled directly to a main clutch and having a first clutch coupleable to the two countershafts via a first splitter section gear;
- and
- a rear input shaft affixed in torsion and coupled to the front input shaft to transmit a thrust loading, the rear input shaft having a second clutch coupleable to the two countershafts via a second splitter section gear and a third splitter section gear;
- wherein the automated manual transmission splitter section is operable to selectively engage the first clutch and the second clutch.
Dependencies are inferred from the claim text.