Machine powertrain control system and method
US9079575B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2012 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Sep 17, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/411
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A machine having a powertrain including an engine operably connected to a torque converter and a transmission. The machine includes a control system receive an activation signal indicative of an automatic mode operation of the machine and command the torque converter to remain in a direct-drive mode while the transmission shifts from a first gear ratio to a second gear ratio. The control system also limits engine speed below a first engine speed limit when a gear ratio setting of the transmission is indicative of the second gear ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.