Method and arrangement for adapting shifting strategies in a heavy vehicle including an automated transmission and experiencing a PTO load
US7931560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2006 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | May 21, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0234
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Method and arrangement for adjusting shift characteristics of a transmission of a heavy vehicle. A heavy vehicle is operated and that is powered by an internal combustion engine equipped with an automated manual transmission and a power take off. The power take off, when operating, imposes a torque-consuming load on the engine. Operation of the power take off is detected when the engine of the vehicle is in a power mode. At least one gear-shift event is adapted to occur at a higher engine speed when power take off operation is detected than when power take off operation is not detected. The gear-shift event is affected at an engine speed that is approximately five to twenty-five percent higher than when power take off operation is not detected. The gear-shift event may be an up-shift to a lower ratio gear engagement or a down-shift to a higher ratio gear engagement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.