Control apparatus for a suction air quantity of an engine
US5080061A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1991 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Apr 5, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D31/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control apparatus for a suction air quantity of an engine adapted to detect a revolution number of the engine, to measure a difference between the detected revolution number of the engine and a target revolution number of the engine, and to regulate a suction air quantity in a bypass passage which bypasses a throttle valve of the engine corresponding with the difference so that the revolution number of the engine agrees with the target revolution number of the engine, which comprises misfire detecting means for detecting a misfire of the engine, means for outputting a first signal of correcting a timewise change of a suction quantity of the engine based on the difference between the revolution number and the target revolution number of the engine, means for retaining the first signal to a value just before the misfire in case of detecting of the misfire, and means for outputting a second signal for increasing the suction quantity so that the suction quantity is increased in case of detecting of the misfire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.