Method of and system for controlling injection timing in diesel engine
US4763630A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1986 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Mar 4, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In controlling ignition timing in accordance with a deviation between a target ignition timing determined on the basis of at least an engine load and an engine speed and an actual ignition timing detected by use of an ignition timing sensor, when non-perfect explosion operating conditions, wherein an ignition signal is difficult to detect, or operating conditions in which the ignition signal is instable are present, an open loop control on the basis of the engine load and the engine speed is effected. Feedback control is effected when the ignition signal is detected with neither non-perfect explosion operating conditions nor instable ignition signal operating conditions being present. When the ignition signal is not detected, the aforesaid open loop control is effected and a trouble in the ignition timing sensor is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.