Device for controlling a multi-cylinder internal combustion engine
US6119666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1999 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | May 7, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/0092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for controlling a multi-cylinder internal combustion engine with a rotatable shaft has a transmitter wheel mountable on the rotatable shaft and having a number of uniform spaced angular marks spaced and at least one reference mark which as a synchronization mark for forming control pulses for the internal combustion engine, a sensor which senses the transmission wheel and supplies a rectangular output signal corresponding to its surface, a computing device which evaluates the output signal and compares time intervals of uniform signal flanks with one another or sets them relative to one another in a certain ratio, to recognize the reference mark, and after a first recognition of the reference mark occurrence of the reference mark by counting of the uniform signal flanks is recognized and in addition the distance of the signal flanks is tested and thereby the recognized reference mark is tested for plausibility, an error counter arranged so that when a non plausibility is recognized it is incremented by 1 and during computation of the control pulses the reference mark is considered and a next detection of the reference mark is performed with a same process until a counter c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.