Controlled capacity torque converter clutch control system
US5484354A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Sep 2, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque converter clutch control system has a plurality of operating modes among them an off mode wherein torque coupling is fluidic, a controlled capacity mode wherein the torque coupling is fluidic and mechanical during period of positive engine torque, an apply mode for smoothly transitioning from the OFF mode to the controlled capacity mode, and a release mode for smoothly transitioning from the controlled capacity mode to the off mode. Additionally, a lock mode is provided wherein torque coupling is mechanical via the torque converter clutch and a coast mode wherein torque coupling is mechanical and fluidic during periods of negative torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.