System for freeing a motor vehicle by repeated forward-reverse operation
US4914983A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Sep 23, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2312/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for starting a vehicle with repeated forward-reverse run, in course of which in the drive-chain of the vehicle an automatic transmission /2/ is driven with an internal combustion motor /1/ through the incorporated hydrodynamic torque converter /16/ or in a given case with a dry friction clutch /15/ shortcircuiting it, either directly with the automatic transmission /2/ and/or the cardan shaft /3/, thereafter, by the aid of at least one differential gear /4/ and the half-axes connected thereto at least one pair of wheels /6/ is put into a rotary motion, while gear-change of the automatic transmission /included the function of the dry friction clutch /15// are carried out with an auxiliary energy having been controlled with electromagnetic valves /7/, furtheron fuel supply to the motor /1/ is controlled by means of a throttle pedal; the process can be characterized in that from the angular velocity--being proportional with the velocity of the vehicle being 3 km/h at most, practically zero--of the part of the drive-chain beginning with the output shaft of the automatic transmission /2/ and ending with the wheels /6/, i.e. a structural part or a pair …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.