Lock-up control system for torque converter
US5616099A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1995 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Nov 14, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/186
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lock-up control system for a torque converter, in a vehicle transmitting a driving torque of a prime mover to wheels via a power transmission unit including the torque converter which can establish direct coupling between an input element and an output element. The lock-up control system has an accelerator releasing detecting portion for detecting releasing of an accelerator for operating the prime mover, a lock-up range detecting portion for detecting a vehicle traveling condition falling within a lock-up range for establishing direct coupling of the input and output elements of the torque converter by means of a lock-up clutch, a lock-up progressing portion for progressing direct coupling between the input and output element of the torque converter by engagement of the lock-up clutch in response to the accelerator releasing detecting means and the lock-up range detecting means, when the vehicle traveling condition enters into the lock-up range, a coasting capacity detecting portion for detecting an engaging capacity of the lock-up clutch as progressing establishment of lock-up state, reaching a coasting capacity required for coasting of the vehicle, and a coasting capacity main…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.