Electronic device controlling the bridging or locking of a hydrodynamic torque converter and method of application
US4386687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1980 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Jun 12, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/143
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The device consists of a comparison unit 35 comparing the respective speeds 31a and 32a of the input shaft 2 and the output shaft 7 of the converter with a pre-set value so as to supply a "bridging" control command to an electrohydraulic transducer 14; and a timing unit 34 eliminating the "bridging" by signal 34a during the changeover from one transmission ratio to another in accordance with the data supplied by the unit 20 and transmitting with a delay the changeover control command to the transmission control elements 13a and 13b. It is thus possible to "bridge" or lock out the converter for all the transmission ratios while eliminating the "bridging" when each ratio change is made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.