Method to calibrate a hydrostatic transmission with electronic controls
US5628187A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1996 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Jun 19, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/465
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method for putting into operation a vehicle with an electronically controlled automotive hydrostatic transmission, wherein an output current of an electronic control by means of at least one proportional pressure-reducing valve is used for generating a control pressure acting upon the servo system of the variable displacement pump. The method is performed by the following steps: a) determining a limit value of a driving regime of the vehicle; b) detecting, digitizing and reading-in at least one current operational parameter of the transmission into the electronic control; c) determining and detecting at least one characteristic value of the output current of the electronic control corresponding to the value of the driving regime of the transmission to the one proportional pressure-reducing valve, and d) calculating a current characteristic on the basis of the value of the output current for achieving reproducible driving properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.