Process for displaying oil change information in an internal combustion engine
US4845623A · kind A · utility
6Cited by
8References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1987 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Jul 7, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2011/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A process for displaying engine oil change information for an internal combustion engine equipped with an electronic injection calculator linked to an onboard computer consisting of the calculation of (N) number of weighted kilometers. The reduction of the period (T) pulses by a period (d) at each (N) kilometers to a minimum threshold (T.sub.o) corresponding to (M.N.) weighted kilometers. The storage of (M.N.) weighted kilometers, their subtraction of the stored weighted kilometers from the actual kilometers remaining to be traveled and the display of the actual kilometers remaining to be traveled before oil change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.