System and method for controlling power downshifts of a transmission
US8688336B2 · kind B2 · utility
1Cited by
11References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2010 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Nov 9, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/064
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system for controlling power downshifts of a transmission includes a flare generation module, a flare control module, and a shift control module. The flare generation module generates turbine speed flare by decreasing pressure applied to an off-going clutch of the transmission. The flare control module decreases the turbine speed flare by increasing the pressure applied to the off-going clutch of the transmission. The shift control module increases a pressure applied to an on-coming clutch of the transmission when the turbine speed flare is less than a predetermined amount from a desired turbine speed flare.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.