Apparatus for detecting misfire and for controlling fuel injection
US4928228A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | May 20, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P17/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control apparatus which is constructed with a cylinder discrimination sensor for generating cylinder discrimination signal, a crank angle sensor for generating crank angle signal, a fuel injection valve provided in each cylinder of the engine, an ignition coil provided in correspondence to each and every cylinder, a flip-flop which functions to reverse in synchronism with ignition timing, misfire detector for detecting the state of misfire in each cylinder, and an engine control section for controlling the fuel injection valve and the ignition coil in correspondence to each cylinder upon receipt of the cylinder discrimination signal and the crank angle signal and for closing the fuel injection valve of the misfired cylinder upon receipt of the misfire detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.