Shock control arrangement in hydraulic control system of automatic power transmission
US4325271A · kind A · utility
11Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1978 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Nov 8, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0485
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In an automatic power transmission having a transmission mechanism including a fluid operated frictional unit to be actuated to make shifts between predetermined forward drive gear ratios or between the neutral and reverse drive gear positions, there is provided a hydraulic transmission control system having incorporated therein a shock control arrangement by means of which a fluid pressure lower than the fluid pressure to be supplied to the frictional unit during shifting between the neutral and reverse drive gear positions is supplied to the frictional unit during shifting between the predetermined forward drive gear ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.