Automatic transmission apparatus for vehicle
US5025686A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 22, 1988 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Aug 22, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/704
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An automatic transmission apparatus for vehicles include a continuously variable transmission of belt type, and a control unit supplied with a plurality of data relating to a vehicle. The control unit computes output data on the basis of the input data, and generates control signals for changing a pulley width of the continuously variable transmission of belt type, for changing an effective diameter of the pulley and for substantially continuously controlling the transmission ratio on the basis of the output data. The control unit comprises a control signal generator for deciding whether the vehicle is started or not and for generating a control signal to temporarily narrow the pulley width when it is decided that the vehicle is started.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.