Method of and apparatus for distinguishing engine idling and working hours
US6735150B2 · kind B2 · utility
28Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Oct 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A novel technique for distinguishing fuel-operated engine idling and working periods by monitoring the different values of the engine alternating-current alternator frequencies for distinguishing engine idling and working, and, where desired, total engine operating run time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.