Sensing ignition by voltage monitoring
US8393201B2 · kind B2 · utility
3Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2010 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Oct 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of sensing vehicle engine ignition status is disclosed wherein samples of only the electrical system voltage levels are used. Sampling voltages that drop sufficiently (in magnitude and quantity over a period of time) will signify an “engine off” state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.