Control apparatus for an internal combustion engine
US4296722A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Jul 26, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/263
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control apparatus for an internal combustion engine in which a plurality of sensors are provided to detect operating conditions of the engine and the detected signals are converted into digital signals for the arithmetic operation executed in a central processor. This apparatus includes a register for storing data supplied from the central processor, a counter for counting up pulses produced each time the engine rotates a fixed crank angle, and a comparator for producing an output when a count value of the counter becomes equal to or greater than the data set in the register. A logic circuit is provided to produce a control pulse on the basis of the output of the comparator for the control of fuel injection. Upon the detection of conditions to correct the quantity of fuel injected into the engine, such as during acceleration, the data to be set into the register is changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.