Control device of vehicle drive-train system
US8366587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2011 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Aug 31, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/147
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control device of a vehicle drive-train system including an engine, an electronic throttle valve, an automatic transmission having a manual shift mode, a torque converter provided between the automatic transmission and the engine, and a lock-up clutch operable to directly connect an input member and an output member of the torque converter with each other includes a blipping control device that performs blipping control for temporarily increasing the output rotational speed of the engine by of the electronic throttle valve, when a power-off downshift is performed while the automatic transmission is in the manual shift mode; and a lock-up control device that engages or partially engages the lock-up clutch, based on a difference between a rotational speed of the output member of the torque converter and a rotational speed of the input member thereof, which the difference is reduced after the blipping control is started.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.