Method for determining at least one rail pressure/closing current value pair for a pressure control valve of a common rail injection system
US8583347B2 · kind B2 · utility
1Cited by
2References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 12, 2010 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Nov 29, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/31
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for determining at least one rail pressure/closing current value pair for a pressure control valve of a common rail injection system of an internal combustion engine includes the following steps: operating the common rail injection system in an MU control mode; reducing the control current for the pressure control valve; detecting the pressure curve over time in the common rail and determining the rail pressure; determining the closing current based on the detected pressure curve; and associating the determined rail pressure and the determined closing current with a rail pressure/closing current value pair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.