Internal combustion engine control system and apparatus therefor
US6357418B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2000 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Aug 8, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P15/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine control system comprising the steps of supplying a reference position detection pulse and a low revolution ignition position detection pulse generated by a single pulser coil of a crank shaft sensor at a reference position of each of cylinders and a low revolution ignition position thereof through respective waveform shaping circuits to a CPU of an electronic control unit and controlling the internal combustion engine so that all the cylinders are simultaneously ignited at an extreme low revolution area where it cannot be judged which of the cylinders each of the pulses generated by the crank shaft sensor corresponds to when the crank shaft sensor generates every reference position detection pulse near a top dead center in a compression stroke of each of the cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.