Control system for automatic transmission
US5474508A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1993 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Jul 9, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0096
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control system for an automatic transmission includes a shift gear mechanism for shifting respective shift gear stages, a shift line map including upshift lines and downshift lines, and a device for detecting a shift timing at which an shift operation should be carried out based on an engine load on the shift line map and a possibility is estimated that a driving condition will return back to the previous shift gear stage. The system also includes an engine load detecting device for detecting a stable condition of the engine load, and a controller for controlling the shift gear mechanism based on the shift line map after the engine load detecting device detects the stable condition of the engine load at the shift timing detected by the shift timing detecting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.