Transmission control system
US4106368A · kind A · utility
22Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1976 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Dec 22, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0255
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control system used to change the gear ratio in a gear set regulated by a signal from an electronic control unit is disclosed. A transducer provides an output torque signal which is compared to other signals for controlling the gear change. The ratio change is accomplished through a friction element engaged by hydraulic pressure. A unique diaphragm and solenoid control valve is used responsive to the electronic control unit to follow a shift control ramp to insure a smooth shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.