Fuel controller for an internal combustion engine
US4945879A · kind A · utility
4Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Feb 1, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P11/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel controller for an internal combustion engine has a crank angle sensor which generates a cylinder recognition signal corresponding to a prescribed cylinder of the engine. If a microcomputer 12 determines that the cylinder recognition signal has not changed during the occurrence of a prescribed number of changes in the level of a crank angle signal, the cylinder recognition signal is determined to be abnormal and fuel injectors of the engine are not actuated if the engine has been running for at least a prescribed length of time, thereby cutting off the supply of fuel to the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.