Method and apparatus for determining cylinder #1 power firing event in wasted spark ignition systems
US4795979A · kind A · utility
20Cited by
1References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 15, 1986 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Dec 15, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P2017/006
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of determining the cylinder #1 power firing event in a wasted spark ignition system comprises developing a first signal comprising the integration of all power firing event signals, a second signal comprises the integration of all wasted firing event signals and comparing the amplitudes of the two signals to determine which represents the power firing events. The firing event signals are sorted for integration based upon knowledge of the polarity of spark plug firings, the cylinder firing order and the occurrence of a #1 cylinder firing event signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.