Apparatus for controlling fuel injection timing of fuel injection apparatus
US4617902A · kind A · utility
10Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1984 |
| Grant date | Oct 21, 1986 |
| Priority date | — |
| Expiry date | Dec 10, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a fuel injection timing control apparatus having a sensor for generating a signal indicating the actual timing of fuel injection in response to the fuel pressure occurring at the time of fuel injection for controlling the fuel injection timing in the mode of closed-loop control using the signal as a feedback signal, when the sensor stops producing the signal, the control mode is changed to the mode of open-loop control so as to continue the control operation of the fuel injection timing, and the state of zero injection of the fuel injection pump is distinguished from the occurrence of a malfunction in the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.