Ignition timing control system
US4895127A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1988 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | May 11, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An ignition timing control device for an internal combustion engine includes a load detector for detecting a load on the engine, an engine-revolution detector for detecting a number of revolution of the engine, a cylinder discrimination signal generator for generating cylinder discrimination signals, an operating device for operating the optimum ignition timing for the engine based on the outputs from the load detector and the engine-revolution detector, a drive signal generator for generating drive signals corresponding to the ignition timing for each of the ignition coils provided in each cylinder, and a distributor for distributing the drive signal to each of the ignition coils in an appropriate sequence on the basis of the cylinder discrimination signal. The distributor is provided with a distribution sequence maintaining device for maintaining the distribution sequence of the drive signal, even when the cylinder discrimination signal is stopped. The distributor also predicts an ignition coil to which the drive signal is to be distributed from an ignition coil, and that to which the drive signal has been distributed previously, and distributes the drive signal to the predicted …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.